Health Data Analysis
Data-driven insights from 240M+ rows of federal health data — Medicaid claims, Medicare physician spending, BRFSS surveys, and NHANES clinical results.
Behavioral Health Integration Billing Went From Zero to Millions Overnight
Behavioral Health Integration codes (99484, 99492, 99493, 99494) were introduced to reimburse primary care practices for coordinating mental health care — and their adoption in Medicaid has followed an explosive, uneven trajectory that reveals exactly which states are investing in integrated care and which have barely started. With mental health workforce shortages making standalone psychiatric care inaccessible for most Medicaid beneficiaries, these codes represent one of the most scalable policy levers available — yet adoption remains concentrated in a handful of states. The provocative finding: the states with the worst documented mental health outcomes are often the ones billing these codes the least.
Psychiatry's Workforce Is Aging Faster Than Any Other Specialty
The Clinician Directory's graduation year field reveals that psychiatry has one of the oldest active workforces in Medicare — a disproportionate share of practicing psychiatrists graduated before 1990, meaning a retirement wave is imminent precisely as the mental health crisis reaches its peak. For mental health policy analysts, this is a five-alarm signal: the supply of psychiatrists is already inadequate, and attrition over the next decade will make it dramatically worse. The unresolved question is whether nurse practitioners and clinical psychologists are graduating fast enough to absorb the coming gap.
GLP-1 Drugs Rewrote Medicare's Entire Drug Spending Curve in Three Years
Semaglutide and related GLP-1 receptor agonists went from a minor line item to one of the fastest-growing cost categories in Medicare Part D between 2020 and 2023, compressing spending growth that previously took a decade into three years. The rate of cost-per-claim escalation for this drug class is unlike anything in the dataset's 11-year history, including the hepatitis C drug wave of 2014-2015. What makes this analytically interesting is that claim volume growth is modest — it's the per-claim price that is doing the damage to the budget.
COVID Erased a Decade of Inpatient Volume and It Never Came Back
Medicare inpatient discharges dropped sharply in 2020 as hospitals canceled elective procedures and patients avoided care — but the data through 2023 reveals that volume never fully recovered to pre-pandemic levels for dozens of high-frequency DRGs. This isn't just a COVID blip; it appears to represent a structural shift in how and where Medicare patients receive care, likely accelerated by the rise of outpatient surgery centers and observation stays. The missing patients represent billions in care that either moved to a different setting or was simply never delivered.
Elevated Liver Enzymes Are Twice as Common in Low-Income Adults
Using directly measured ALT levels from NHANES blood draws, adults in households below 200% of the federal poverty line show roughly double the rate of elevated liver enzymes compared to higher-income adults — a finding that points toward undiagnosed fatty liver disease as a hidden driver of health inequality. This matters because non-alcoholic fatty liver disease rarely causes symptoms until advanced stages, and low-income adults are least likely to receive the incidental lab work that would catch it. The unanswered question is how much of this gap is driven by obesity, alcohol, or metabolic syndrome versus the simple absence of routine screening.
Food Insecurity Predicts Worse Health Than Smoking in 2024
Using the 2024 BRFSS social determinants module, adults who report that food often or usually doesn't last until the end of the month show prevalence rates of fair/poor health, high poor mental health days, and chronic disease that match or exceed those of current smokers — a finding that reframes food insecurity as a primary clinical risk factor, not a social service problem. Health system leaders and payers should care because food insecurity is rarely screened for in clinical settings, yet the 2024 data suggests it may carry greater health burden than behaviors that get far more clinical attention. The provocative gap: hospitals screen for smoking at every visit but almost never ask about food.
The Procedure That Bills More in Florida Than in 49 States Combined
A handful of high-volume procedure codes show extreme geographic concentration in Medicare billing — with Florida alone accounting for a disproportionate share of national totals for certain services. This pattern signals either a genuine demographic anomaly, a regional care culture, or a billing environment that tolerates volume few other states match. The tension worth exploring: when one state consistently dominates a procedure's national billing, that's rarely a coincidence.
One State Pays Ten Times More Per Medicaid Enrollee Than Its Neighbor
When Medicaid provider spending is normalized by enrolled population, the variation across states is not incremental — it is an order of magnitude, with the highest-spending states paying far more per enrollee than the lowest even after accounting for population size. This disparity reflects a combination of benefit generosity, provider availability, managed care penetration, and political choices about what Medicaid should cover. The provocative implication is that where you live determines not just your health outcomes but how much public money is spent keeping you alive.
Women Now Outnumber Men in Five Major Medical Specialties
Across several high-volume Medicare specialties — including nurse practitioner and certain primary care fields — female clinicians now represent the clear majority, while surgery, cardiology, and procedural fields remain 75–85% male. This isn't just a pipeline story; it's a workforce composition shift that is already reshaping which patients get care from whom. The tension worth exploring is whether the feminization of primary care and the masculinization of high-paying procedural fields is widening medicine's internal pay and prestige gap.
Diabetes Drugs Quietly Became Medicare's Biggest Drug Category
Over the past decade, the explosive rise of GLP-1 agonists and SGLT2 inhibitors has pushed diabetes-related drugs to the top of Medicare Part D spending — a shift so gradual it happened without a single headline moment. The cost per claim for newer diabetes drugs has risen faster than almost any other therapeutic category, even as older generics like metformin remain nearly free. This creates a two-tier diabetes drug economy inside Medicare that nobody designed and nobody is governing.
Beneficiary Out-of-Pocket Costs Grew Faster Than Medicare's Own Payments
The gap between total payment (Avg_Tot_Pymt_Amt) and Medicare's share (Avg_Mdcr_Pymt_Amt) — which approximates what beneficiaries owe in deductibles and coinsurance — has grown faster than Medicare's payments themselves across most high-volume DRGs since 2013. For a Medicare patient hospitalized for pneumonia or heart failure, this means a decade of quietly rising cost exposure that nobody announced. The data reveals which conditions are shifting the most financial burden onto the sickest seniors.
Thin Asians Have the Same Metabolic Risk as Obese White Americans
NHANES lab data reveals that Non-Hispanic Asian adults with BMI in the 'normal' range carry HbA1c and triglyceride profiles that match or exceed those of obese Non-Hispanic White adults — exposing a fundamental flaw in how clinicians screen for metabolic disease. This matters because BMI-based screening thresholds were calibrated on European populations, meaning millions of Asian Americans are likely being cleared as healthy when their bloodwork tells a different story. The unanswered tension: if standard BMI cutoffs systematically under-identify metabolic risk in Asian adults, how many people are being denied preventive interventions they need?
Why College Graduates Are Now the Heaviest Drinkers in America
For decades, heavy drinking was associated with lower educational attainment, but BRFSS trend data suggests a striking reversal: college-educated adults — particularly women — now report binge and heavy drinking at rates that match or exceed those with less education. Substance use researchers, employers with college-educated workforces, and health insurers should find this alarming because high-functioning heavy drinking is both harder to detect and more likely to go untreated. The uncomfortable question the data raises is whether the cultural normalization of wine culture and professional stress drinking has created a public health blind spot among the demographic assumed to make the healthiest choices.
Preventive Care Billing Collapsed in 2020 and Never Fully Recovered
Preventive services — annual wellness visits, cancer screenings, and chronic disease management codes — dropped sharply in 2020 as patients avoided clinics, but the data through 2023 suggests many of these codes never returned to their pre-pandemic trajectory. This isn't just a billing story: deferred preventive care translates directly into later-stage disease diagnoses and worse outcomes for Medicare's older population. The uncomfortable question the data raises is whether the pandemic created a latent wave of undetected illness that will show up in spending and mortality figures over the next decade.
Did Medicaid Providers Actually Come Back After COVID?
Comparing the number of unique billing NPIs active per month before COVID (2018–Feb 2020), during the acute phase (Mar–Dec 2020), and in the recovery period (2021–2024) reveals which provider types and states never fully returned to pre-pandemic billing volumes — a proxy for provider exit from the Medicaid market. This is an underreported workforce story: while much attention has focused on clinician burnout and retirements, the Medicaid-specific question of whether low-reimbursement providers stopped billing entirely has received almost no data-driven attention. The uncomfortable implication is that access to Medicaid providers may have permanently contracted in ways that claims volume data can detect before patient surveys do.
The Graduation Year Gap Reveals Medicine's Looming Retirement Wave
Analyzing the graduation year distribution of Medicare-enrolled clinicians shows a pronounced bulge of physicians who graduated in the late 1970s through 1980s — meaning a massive cohort is approaching or already past typical retirement age, with the specialty-level picture even more alarming in fields like urology, general surgery, and cardiovascular disease. Health workforce planners and journalists covering the doctor shortage need to see which specialties face the steepest near-term attrition, not just current supply gaps. The uncomfortable question: are we training enough specialists fast enough to replace the wave that's about to leave?
The Prescribers Writing $1 Million in Drug Claims Each Year
A small cohort of individual prescribers consistently generates over one million dollars in annual Medicare Part D drug costs — and their specialty mix, geographic concentration, and drug choices reveal a hidden architecture of extreme prescribing that standard averages completely obscure. Investigative journalists and health policy researchers should care because these outlier prescribers disproportionately shape national drug spending figures, and whether they represent legitimate high-complexity patient panels or anomalous prescribing deserves scrutiny. The unresolved tension: are these million-dollar prescribers serving genuinely complex, high-need patients, or are they concentrated in a handful of specialties where expensive drugs are prescribed with minimal oversight?
A Handful of Hospitals Dominate Medicare's Inpatient Budget
Across nearly 3,000 IPPS hospitals billing Medicare inpatient services, the concentration of total Medicare payments in the top 1% of facilities has intensified over the past decade in ways that mirror market concentration trends in other industries — yet hospital consolidation is rarely framed through a spending concentration lens. For antitrust researchers, health policy advocates, and journalists covering hospital mergers, this framing recontextualizes consolidation not just as a competition issue but as a federal budget issue. The provocative undercurrent is whether CMS is effectively writing ever-larger checks to an ever-smaller circle of mega-hospital systems while smaller community hospitals lose volume and viability.
Sleep Debt Is Stealing Years From Young Adults
Adults aged 18-29 report the shortest weekday sleep durations of any age group, and those sleeping fewer than 6 hours show PHQ-9 depression scores, BMI values, and hsCRP levels that more closely resemble adults 20 years older — suggesting that chronic short sleep may be accelerating biological aging in young Americans. This matters because young adulthood is when sleep habits solidify, yet it receives almost no clinical attention compared to sleep problems in older adults. The unresolved tension: is poor sleep causing worse health in young adults, or are stressed, depressed young people simply sleeping less?
Childhood Trauma Leaves a Measurable Scar on Adult Health
BRFSS 2024 is the first year to include a comprehensive set of Adverse Childhood Experience questions, and the data reveals that adults who experienced multiple ACEs report dramatically higher rates of depression, poor mental health days, smoking, and chronic disease. This is not a new theory — ACE research has existed for decades — but having population-representative data at scale finally lets us quantify the dose-response relationship between childhood adversity and adult health outcomes. The uncomfortable implication: a large share of America's chronic disease burden may be rooted in preventable childhood trauma.
The Same Procedure Costs Medicare 60% More at a Hospital
For dozens of high-volume procedures, Medicare pays dramatically more when the exact same service is rendered in a facility setting versus a physician's office — a gap that has widened every year since 2013. This site-of-service differential quietly inflates Medicare spending by billions annually, yet most patients have no idea the billing address of their care determines what Medicare pays. The unanswered question: as hospitals acquire private practices and reclassify offices as outpatient departments, is this gap accelerating the cost crisis?
Personal Care Aides Bill More Than Every U.S. Surgeon Combined
T1019 — the HCPCS code for personal care services billed in 15-minute increments — is the single largest line item in Medicaid provider spending, dwarfing surgical procedures, specialty drugs, and hospital physician services combined. Most health journalists and policy analysts focus on drug prices or specialist fees, completely missing that home-based personal care has quietly become the dominant cost driver in the program. The tension: this spending is nearly invisible in mainstream healthcare cost debates, yet it represents a fundamental shift in what Medicaid actually does.
The Credential Creep Quietly Reshaping Who Delivers Your Care
Nurse practitioners and physician assistants now make up a substantial share of Medicare-enrolled clinicians, but their distribution across specialties and states reveals a workforce undergoing a fundamental structural shift. Health workforce researchers and policy reporters should care because this transition affects care quality debates, scope-of-practice laws, and whether patients understand who is actually treating them. The tension worth exploring: are NPs and PAs filling genuine gaps, or are they concentrating in the same well-resourced areas where physician shortages are least acute?
Opioid Prescribing Collapsed — But One Drug Kept Climbing
Aggregate opioid prescribing in Medicare Part D fell sharply after 2016 CDC guidelines, but disaggregating by individual drug reveals that buprenorphine — used for opioid use disorder treatment — climbed steeply even as traditional opioids cratered, and the prescriber base shifted dramatically toward psychiatrists and addiction specialists. This is a genuine policy success story embedded in a crisis narrative, but it raises a pointed question: is the buprenorphine supply keeping pace with actual need, or are prescribers still too concentrated in too few states? The data can reveal both the win and the remaining gap simultaneously.
Sepsis Billing Exploded After a Definition Change — Not an Outbreak
Medicare inpatient sepsis discharges surged dramatically after 2015, the year new Sepsis-3 clinical definitions broadened the diagnostic criteria — yet this surge is rarely acknowledged as a coding and billing phenomenon as much as a clinical one. For anyone analyzing Medicare inpatient trends, this matters because sepsis DRGs carry among the highest payment rates in the entire system, meaning a reclassification-driven volume increase translates directly into billions in additional Medicare spending. The unresolved question is how much of the 'sepsis epidemic' in Medicare data represents genuinely sicker patients versus hospitals learning to document and bill for a newly lucrative diagnosis.
Young Men's Blood Pressure Is the Epidemic No One Is Treating
Men aged 18-39 have among the lowest rates of diagnosed hypertension despite measured blood pressure data suggesting their actual prevalence of Stage 1 or Stage 2 hypertension rivals older age groups — a gap that points to a generation of men systematically avoiding the doctor until damage is done. For cardiologists and public health officials, this represents a preventable stroke and heart attack pipeline that is invisible in claims data because it never gets coded. The tension is stark: the group most likely to have uncontrolled blood pressure is the group least likely to know it or be treated for it.
Cost-Skipping at the Doctor Is Getting More Common, Not Less
Despite a decade of ACA expansion, the share of Americans who skipped a doctor visit due to cost (MEDCOST1) has not converged toward zero — and the pattern across income groups from 2014 to 2024 tells a story that defies the coverage-expansion narrative. Health policy analysts tracking ACA outcomes need this data because the dominant story is that coverage solved access, but cost-skipping persists even among people with insurance. The tension: if coverage expanded but cost-skipping held steady or worsened for certain groups, something in the deductible-and-copay structure is failing them.
Office Visits Cost Medicare 40% More Than You Think They Do
The same evaluation and management office visit codes billed in a hospital outpatient facility pay Medicare significantly more than when billed in a physician's office — a price difference most patients and even many physicians don't realize exists. As hospital systems acquire private practices at record rates, this facility-vs-office payment gap is quietly inflating Medicare Part B spending without adding a single extra service. The tension worth exploring: CMS has tried to close this gap for years, but the data may show the problem is actually getting worse.
Medicaid's Mental Health Spending Boom Nobody Planned For
Behavioral health procedure codes — including psychiatric evaluation, psychotherapy, and crisis intervention — have seen dramatic spending growth since 2020, but the trajectory differs sharply by state and provider type. This matters because the mental health provider shortage means billing growth doesn't automatically translate into more patients getting care; it may instead reflect higher utilization by a smaller pool of providers. The unresolved question is whether Medicaid is successfully expanding mental health access or concentrating payments among a shrinking group of high-volume billers.
Which Medical Schools Produce the Most Underserved-State Doctors?
Every medical school claims a mission of producing physicians who serve communities in need, but the Medicare enrollment directory can test that claim by tracing where graduates of specific schools actually end up practicing. If a school's alumni disproportionately concentrate in high-density urban states while graduates of other schools populate rural or low-clinician states, that's a policy-relevant finding that accreditation bodies and state legislatures rarely quantify. The deeper question is whether DO-granting schools, historically associated with primary care and rural service, actually outperform MD programs on this metric when measured in real enrollment data.
One Drug Ate Medicare's Entire Drug Budget Growth for a Decade
A single drug — or a handful of blockbusters — may account for a disproportionate share of the total dollar increase in Medicare Part D spending between 2013 and 2023, meaning that policy debates about 'drug spending' are really debates about a very small number of molecules. This is the kind of concentration finding that stops a health economist cold, because it reframes the entire cost-control conversation around targeted negotiation rather than broad reform. The unresolved question: now that Medicare can negotiate drug prices under the Inflation Reduction Act, did policymakers pick the right drugs to target first?
Sepsis Is Now Medicare's Single Biggest Expense
Sepsis — a life-threatening immune response to infection — has quietly become the dominant line item in Medicare inpatient spending, driven by both high per-discharge payments and enormous volume. Over the past decade, total Medicare dollars flowing to sepsis DRGs have grown faster than almost any other condition, yet public awareness of this shift is nearly zero. The tension: better sepsis detection guidelines may be inflating case counts, making it impossible to tell whether the disease is genuinely more common or just more frequently diagnosed.
Poor Americans Have Older Blood: The Inflammation Gap
High-sensitivity CRP (hsCRP) is a validated marker of chronic systemic inflammation linked to cardiovascular disease, diabetes, and accelerated biological aging — and NHANES data reveals a striking gradient by income level that persists even after accounting for BMI and smoking status. The gap between the lowest and highest income groups in elevated CRP prevalence tells a story about how poverty doesn't just limit healthcare access; it appears to leave a measurable biological signature in the bloodstream. This finding reframes 'social determinants of health' from a policy abstraction into a concrete, lab-confirmed physiological reality.
Smoking Is Falling — But Who Got Left Behind?
National smoking rates have declined for decades, yet the aggregate trend masks dramatic inequality: when you break down current smoking rates by education, income, and state, certain groups have seen almost no improvement while others have nearly eliminated smoking. Health journalists covering tobacco policy need to know whether progress has been equitable or whether the smoking epidemic has simply migrated to a narrower, harder-to-reach population. The tension: if the easy gains are gone, what does it take to reach the people still smoking at high rates?
Did COVID-19 Permanently Change How Doctors Bill Medicare?
We compare procedure code volumes and spending patterns before (2018–2019), during (2020–2021), and after (2022–2023) the pandemic to identify which billing patterns changed permanently and which returned to pre-pandemic levels.
Young Adults Are Reporting Significantly Worse Mental Health Since 2014
This article tracks trends in self-reported poor mental health days among adults aged 18-34 from 2014 to 2024, comparing their trajectory to older age groups to see if younger Americans are uniquely driving the mental health crisis. It also examines whether the gap between young adults and older cohorts has widened over the decade.
Who Carries the Greater Mental Health Burden: Men or Women?
This post examines the gender gap in mental health burden across BRFSS survey years 2014–2024, measuring how rates of frequent poor mental health days differ between men and women and whether that gap has shifted over time. It also explores which age groups show the starkest disparities, revealing where the burden falls hardest.
How Does Menopause Impact Women's Mental Health Across Stages of Life?
Using nationally representative survey data, this article tracks how women's self-reported mental health shifts across every life stage — with a focus on the perimenopausal and postmenopausal years — and how that trajectory compares to men's at every age.
Who Binge Drinks the Most? Are Young People Binge Drinking More or Less Over Time?
Using BRFSS data from 2014 to 2024, this article tracks binge drinking and heavy drinking rates by age group to see whether the long-assumed pattern of alcohol use peaking in young adulthood has held, shifted, or reversed. It also examines whether trends differ by sex.
Do Women in Midlife Have Higher Rates of Chronic Disease?
Cardiovascular disease, diabetes, and arthritis all increase in prevalence during and after menopause, but how do these rates compare between women and men in the same age bands at the population level? This article maps the chronic disease burden of women aged 45–64 across conditions and states using a decade of BRFSS data.
What Does Medicare Actually Spend on Drugs vs. Doctor Services?
Medicare Part B covers both physician-administered drugs and traditional medical services — we break down how much of Part B spending goes to biologicals and infusions versus procedures, and track how that balance has shifted over a decade.
Is Your Blood Pressure Higher Than You Think?
Compares measured blood pressure readings from NHANES clinical exams against self-reported hypertension diagnoses to expose gaps in awareness and control, segmented by age group, gender, and race/ethnicity.
Do Uninsured Americans Have Worse Lab Results?
Compares key clinical measurements — HbA1c, blood pressure, total cholesterol, and BMI — between insured and uninsured adults to quantify the measurable health toll of lacking coverage in the NHANES 2021–2023 cycle.
Does Exercising Regularly Actually Protect Against Depression?
This article uses BRFSS data to examine the relationship between leisure-time physical activity and poor mental health days, depressive disorder diagnosis, and self-rated health, controlling for age and income. It tracks whether the protective association between exercise and mental health has strengthened over the decade as mental health worsened nationally.
Has Obesity Gotten Worse in Every State Since 2014?
This article maps the trajectory of adult obesity rates across all 50 states plus DC from 2014 through 2024, identifying which states have seen the steepest increases and whether any have managed to flatten or reverse the trend. It also examines whether the gap between the most and least obese states is widening.
Are Non-Physician Providers Taking Over Medicare Billing?
Nurse practitioners, physician assistants, and other advanced practice providers are billing Medicare in growing numbers. We quantify their rise, the procedures they most commonly bill, and how their payment rates compare to physician counterparts.
Are Rural Patients Getting Less Medicare Care Than Urban Ones?
Using rural-urban classification codes, we examine whether patients in rural and small-town America are served by fewer providers, see lower Medicare spending per service, and have access to a narrower range of procedures than their metropolitan counterparts.
Does Poor Sleep Drive Both Depression and Obesity?
Investigates the intersecting relationships between short sleep duration, PHQ-9 depression scores, and obesity using NHANES physical and questionnaire data, revealing how these three risk factors cluster together in the population.
Are Veterans Healthier or Sicker Than Civilians?
This article compares physical health, mental health, chronic disease burden, and health care access between veterans and non-veterans using a decade of BRFSS data. It examines whether the 'healthy soldier effect' holds up over time and across age groups.
Which States Have the Worst Mental Health Crisis?
Using weighted BRFSS data across all survey years, this article ranks every U.S. state by the share of adults reporting 14 or more poor mental health days per month and tracks how the rankings have shifted since 2014. It also examines whether depression diagnosis rates follow the same geographic pattern.
Medicare Markup: Who Charges the Most vs. Gets Paid
Which medical specialties submit the most inflated charges to Medicare? We analyze the gap between billed charges and actual payments across all provider types, 2013–2023.
Loneliness & Health: What BRFSS 2024 Data Reveals
Explore how loneliness and lack of emotional support connect to poor mental health, chronic disease, and missed care using BRFSS 2024 survey data.
Medicaid Telehealth Billing Surge: Before vs. After COVID-19
Analyzing Medicaid telehealth procedure code spending from 2018–2024 reveals dramatic shifts in provider adoption, patient reach, and total dollars billed.
Highest Per-Patient PCM Billers in Medicaid (100+ Patients)
Which Medicaid providers bill the most per patient for Principal Care Management? We rank providers with 100+ PCM patients by average spending per beneficiary.
Medicaid RPM Spending Trends: 2018–2024 Year Over Year
Explore how Medicaid remote patient monitoring spending has grown year over year from 2018 to 2024, including top billing providers and procedure code breakdowns.
Which Medicaid Providers Bill Only One Procedure Code?
Discover how many Medicaid providers bill exclusively one HCPCS code, what those codes are, and what this reveals about care specialization vs. potential fraud.
The Top 10 Highest-Spending Medicaid Procedures in 2024
Analysis of the highest-cost Medicaid procedures in 2024, ranked by total spending from 227M+ claims records covering 617K+ providers.