{"source":"Whelth Research","title":"Sold, Not Measured: How Often U.S. Longevity Clinics Prescribe Without Testing — 2026","url":"https://whelth.com/research/sold-not-measured-2026","computed":"2026-09-02","collected":{"from":"2026-07-18","to":"2026-09-02","note":"about 55% in July and 45% in August"},"population":"3549 U.S. practices offering longevity medicine (Whelth Research 2026 census qualifying set)","definitions":{"intervention":"HRT, TRT, peptide therapy, medical weight loss, IV therapy, NAD+ therapy, ozone therapy, hyperbaric oxygen, stem-cell therapy, sexual-health treatments, ketamine therapy","diagnostic_any":"blood testing / lab panels, biomarker panels, genetic testing, DEXA, VO2 max, CGM, coronary calcium score, multi-cancer early detection, full-body MRI, clinical sleep study","frontier_measurement":"DEXA, VO2 max, CGM, coronary calcium score, multi-cancer early detection, full-body MRI, clinical sleep study","blood_testing":"blood testing / lab panels, biomarker panels","sells_without_testing":"offers >=1 intervention and 0 diagnostics, per the practice's published service menu","note":"All figures describe services listed on practices' own websites at review time, not clinical conduct. A practice ordering labs through an outside laboratory without listing testing counts as offering none."},"tables":{"headline":{"columns":["metric","count","percent","base"],"rows":[["sells interventions with no diagnostic service listed",1100,31,"all 3549 verified practices"],["hormone-therapy sellers listing no frontier measurement",1867,86.9,"2149 practices selling HRT and/or TRT"],["practices listing any frontier measurement",477,13.4,"all 3549 verified practices"],["practices listing no blood testing / biomarker panel",1573,44.3,"all 3549 verified practices"]]},"by-intervention":{"columns":["intervention","practices_selling","pct_sellers_no_blood_testing","pct_sellers_no_diagnostic_at_all"],"rows":[["Testosterone therapy (TRT)",857,30.2,22.8],["Hormone replacement therapy (HRT)",2015,42.4,null],["Peptide therapy",1100,41.5,32.5],["Medical weight loss",2237,44.5,34.8],["IV / NAD+ infusions",1859,null,38.4],["NAD+ therapy",747,null,32],["Ozone therapy",324,null,38.9],["Stem-cell therapy",126,null,19]]},"by-type":{"columns":["practice_type","n","pct_sells_without_any_test","pct_any_frontier_measurement","pct_hormone_sellers_no_frontier","pct_intervention_sellers_no_blood_testing"],"rows":[["Med spa (hybrid)",1404,43.4,7.5,92,55.4],["Medical practice (hybrid)",1441,25.8,12.1,88.1,42.1],["Dedicated longevity clinic",634,14.7,27.1,75.1,24.5],["Concierge practice",61,41,29.5,84.2,66]]},"by-state":{"columns":["state","n","pct_sells_without_any_test","pct_any_frontier_measurement"],"rows":[["Maryland",46,45.7,13],["Kentucky",59,37.3,11.9],["Oregon",54,37,13],["Washington",90,36.7,15.6],["Missouri",74,36.5,10.8],["Indiana",58,36.2,5.2],["New Jersey",64,32.8,10.9],["Utah",61,32.8,11.5],["Ohio",97,32,12.4],["Pennsylvania",50,32,28],["Michigan",63,31.7,14.3],["Florida",346,30.6,13.3],["North Carolina",127,29.9,13.4],["California",433,29.3,13.9],["Colorado",114,28.9,14],["Alabama",40,27.5,20],["Tennessee",99,27.3,10.1],["Georgia",85,27.1,10.6],["Arizona",168,25,12.5],["Texas",323,24.8,18.3],["Illinois",96,24,12.5],["New York",143,23.8,18.2],["Virginia",92,21.7,9.8],["Nevada",73,19.2,19.2],["Massachusetts",61,16.4,18],["Kansas",55,10.9,20]]}},"license":"CC BY 4.0 — covers this published report data only, not WHELTH's underlying database; cite Whelth Research with a link"}