75635 — Ct scan of abdominal aorta and both leg arteries with contrast
20,961 observed fee-for-service (49%) · ~21,717 estimated Medicare Advantage. Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale
Disclosed Medicare fee-for-service services by billing state; open a bar for that state's ranked market. Average submitted charge / service by billing state, among the highest-volume states; open a bar for that state's ranked market.
- Market position — where this market sits on volume and growth among all state markets, and its rank.
- Worth a look — every state market for this search, ranked by a published score: size, growth, fragmentation, below-expected volume.
- Lookalike opportunities — groups billing below what peers of the same specialty, size, and state predict, with the expected figure shown.
- National benchmarks — where each group's volume sits nationally and within its specialty.
- Market structure — how concentrated this market is, and who owns the volume.
- Medicare-wide scaling — the exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Nevvi's market analytics platform — code baskets, market structure and share, the twelve-year trend layer — is built and not launched yet. We're gathering interest in it.
Notify me at launch →| # | Physician group | City | St | Specialty | Providers | 75635 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 550 | $271,268 | $493 | premium | 12.0% | (817) 321-0470 |
| 2 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 410 | $252,560 | $616 | premium | 21.9% | (704) 362-1945 |
| 3 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 335 | $135,360 | $404 | premium | 21.4% | (616) 363-7272 |
| 4 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 326 | $219,520 | $673 | premium | 7.1% | (281) 206-9020 |
| 5 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 74 | 313 | $144,293 | $461 | premium | 13.6% | (937) 558-3800 |
| 6 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 263 | $117,824 | $448 | premium | 14.7% | (812) 422-3254 |
| 7 | RADIOLOGY INC | GOSHEN | IN | DIAGNOSTIC RADIOLOGY | 35 | 238 | $134,610 | $566 | premium | 13.3% | (574) 535-2693 |
| 8 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 224 | $95,684 | $427 | premium | 9.7% | (614) 566-5600 |
| 9 | LAKELAND RADIOLOGISTS P A | FLOWOOD | MS | DIAGNOSTIC RADIOLOGY | 29 | 219 | $110,157 | $503 | premium | 13.5% | (601) 936-2390 |
| 10 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 218 | $155,978 | $715 | premium | 14.8% | (617) 724-0287 |
| 11 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 193 | $116,434 | $603 | premium | 6.9% | (916) 983-7476 |
| 12 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | MA | DIAGNOSTIC RADIOLOGY | 60 | 186 | $68,634 | $369 | premium | 12.6% | (413) 827-7400 |
| 13 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 186 | $147,888 | $795 | premium | 8.1% | — |
| 14 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 176 | $228,323 | $1,297 | premium | 6.3% | (916) 681-8852 |
| 15 | FLORIDA RADIOLOGY CONSULTANTS P A | FORT MYERS | TN | DIAGNOSTIC RADIOLOGY | 67 | 173 | $70,411 | $407 | premium | 7.4% | (239) 938-3571 |
| 16 | MEMPHIS RADIOLOGICAL PC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 51 | 173 | $89,787 | $519 | premium | 7.4% | (901) 561-6000 |
| 17 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 172 | $284,144 | $1,652 | premium | 7.5% | (614) 228-7231 |
| 18 | RADIOLOGY ASSOCIATES OF DOTHAN PC | DOTHAN | AL | DIAGNOSTIC RADIOLOGY | 22 | 172 | $61,576 | $358 | premium | 19.0% | (334) 793-8111 |
| 19 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 169 | $399,290 | $2,363 | premium | 8.8% | (212) 263-9700 |
| 20 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 168 | $108,010 | $643 | premium | 3.4% | (352) 265-8990 |
| 21 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 166 | $105,448 | $635 | premium | 8.5% | (501) 202-2093 |
| 22 | RADIOLOGY ASSOCIATES OF ABILENE PA | ABILENE | TX | DIAGNOSTIC RADIOLOGY | 25 | 162 | $72,090 | $445 | premium | 3.5% | (325) 670-2000 |
| 23 | RADIOLOGY ASSOCIATES OF SOUTHWEST LOUISIANA | ALEXANDRIA | LA | DIAGNOSTIC RADIOLOGY | 94 | 151 | $249,452 | $1,652 | premium | 15.7% | (318) 473-3000 |
| 24 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 150 | $55,350 | $369 | premium | 22.8% | (319) 364-0121 |
| 25 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 147 | $241,230 | $1,641 | premium | 7.7% | (631) 225-7200 |
| 26 | RADIOLOGY PHYSICIANS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 61 | 144 | $59,614 | $414 | premium | 6.3% | (937) 208-8000 |
| 27 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 144 | $89,712 | $623 | premium | 4.6% | — |
| 28 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 143 | $48,906 | $342 | premium | 13.9% | (918) 743-8838 |
| 29 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 141 | $473,827 | $3,360 | premium | 2.9% | (904) 953-2000 |
| 30 | HEART CARE CENTERS OF ILLINOIS, S.C. | PALOS PARK | IL | INTERVENTIONAL CARDIOLOGY | 38 | 140 | $414,400 | $2,960 | premium | 4.5% | — |
| 31 | RADIOLOGY INC | HUNTINGTON | WV | DIAGNOSTIC RADIOLOGY | 28 | 138 | $71,208 | $516 | premium | 29.2% | (304) 526-1140 |
| 32 | NORTH ARKANSAS RADIOLOGY | BATESVILLE | AR | DIAGNOSTIC RADIOLOGY | 22 | 137 | $42,881 | $313 | premium | 7.0% | (870) 262-1200 |
| 33 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 132 | $55,646 | $422 | premium | 7.4% | (314) 941-5600 |
| 34 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 123 | $42,924 | $349 | premium | 5.3% | (517) 279-5400 |
| 35 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 122 | $50,052 | $410 | premium | 3.9% | — |
| 36 | ALEXIAN BROTHERS SPECIALTY GROUP | ELK GROVE VILLAGE | IL | NURSE PRACTITIONER | 44 | 121 | $29,887 | $247 | premium | 3.9% | (847) 437-5500 |
| 37 | MCHS HOSPITALS INC | MARSHFIELD | WI | NURSE PRACTITIONER | 1179 | 120 | $171,000 | $1,425 | premium | 11.4% | — |
| 38 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 118 | $184,198 | $1,561 | premium | 4.2% | (650) 723-4000 |
| 39 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 118 | $59,922 | $508 | premium | 8.0% | (617) 732-5500 |
| 40 | BOONE PHYSICIAN SERVICES LLC | COLUMBIA | MO | PHYSICIAN ASSISTANT | 236 | 113 | $30,736 | $272 | premium | 6.3% | (573) 815-8000 |
| 41 | BAPTIST HEALTH | LITTLE ROCK | AR | NURSE PRACTITIONER | 106 | 113 | $28,702 | $254 | premium | 5.8% | (501) 227-7596 |
| 42 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 112 | $53,312 | $476 | premium | 6.0% | (919) 684-8111 |
| 43 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 108 | $186,840 | $1,730 | premium | 9.2% | (480) 753-6161 |
| 44 | SANFORD BISMARCK | BISMARCK | ND | NURSE PRACTITIONER | 563 | 105 | $30,075 | $286 | premium | 52.5% | (701) 323-8300 |
| 45 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 105 | $30,345 | $289 | premium | 5.4% | (479) 571-4338 |
| 46 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 104 | $125,840 | $1,210 | premium | 13.0% | (702) 732-6000 |
| 47 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 102 | $131,886 | $1,293 | premium | 16.6% | (888) 972-9700 |
| 48 | RADIOLOGISTS PA | FORT SMITH | AR | DIAGNOSTIC RADIOLOGY | 19 | 100 | $38,000 | $380 | premium | 5.1% | (479) 474-1616 |
| 49 | CLEVELAND CLINIC FLORIDA | WESTON | PA | NURSE PRACTITIONER | 720 | 99 | $43,556 | $440 | premium | 6.0% | (954) 659-5000 |
| 50 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 95 | $86,504 | $911 | premium | 1.9% | (904) 399-5550 |
| 51 | ADVANCED BERKSHIRE MEDICAL IMAGING PC | PITTSFIELD | MA | DIAGNOSTIC RADIOLOGY | 11 | 93 | $37,293 | $401 | premium | 6.3% | (413) 447-2451 |
| 52 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 93 | $38,130 | $410 | premium | 4.0% | (614) 293-8315 |
| 53 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 93 | $153,636 | $1,652 | premium | 2.0% | (855) 504-4544 |
| 54 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 92 | $53,564 | $582 | premium | 1.9% | (941) 255-3535 |
| 55 | ST DAVIDS HEART AND VASCULAR PLLC | AUSTIN | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 199 | 91 | $33,546 | $369 | premium | 2.0% | (512) 899-2028 |
| 56 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 90 | $37,572 | $417 | premium | 10.3% | (859) 257-1412 |
| 57 | DIAGNOSTIC IMAGING ASSOCIATES PA | VICTORIA | TX | DIAGNOSTIC RADIOLOGY | 4 | 89 | $35,600 | $400 | premium | 1.9% | (361) 573-6100 |
| 58 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 88 | $205,760 | $2,338 | premium | 4.3% | (507) 284-2511 |
| 59 | CARDIOLOGY ASSOCIATES OF MOBILE INC | MOBILE | AL | PHYSICIAN ASSISTANT | 52 | 88 | $84,480 | $960 | premium | 9.7% | (251) 460-0078 |
| 60 | ORLANDO HEALTH MEDICAL GROUP INC | ORLANDO | FL | PHYSICIAN ASSISTANT | 2145 | 86 | $79,122 | $920 | premium | 1.8% | (407) 896-1100 |
| 61 | BAYHEALTH RADIOLOGISTS LLC | DOVER | DE | DIAGNOSTIC RADIOLOGY | 93 | 85 | $30,725 | $361 | premium | 33.7% | (610) 892-8889 |
| 62 | DARTMOUTH-HITCHCOCK CLINIC | LEBANON | NH | PHYSICIAN ASSISTANT | 1441 | 84 | $144,734 | $1,723 | premium | 30.0% | (603) 650-5000 |
| 63 | SOUTHERN DELAWARE IMAGING ASSOC | LEWES | DE | DIAGNOSTIC RADIOLOGY | 40 | 83 | $33,200 | $400 | premium | 32.9% | (302) 645-3636 |
| 64 | RADIOLOGY ASSOCIATES OF VENICE AND ENGLEWOOD PA | VENICE | FL | DIAGNOSTIC RADIOLOGY | 8 | 82 | $57,730 | $704 | premium | 1.7% | (941) 486-3483 |
| 65 | KHALID SHAFIQ, M.D. , P.A. | PARIS | TX | NURSE PRACTITIONER | 3 | 82 | $205,000 | $2,500 | premium | 1.8% | (903) 783-1444 |
| 66 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 80 | $65,280 | $816 | premium | 2.9% | (760) 773-1251 |
| 67 | DRS HARRIS BIRKHILL WANG SONGE AND ASSOC PC | DEARBORN | MI | DIAGNOSTIC RADIOLOGY | 62 | 78 | $23,790 | $305 | premium | 5.0% | (313) 593-7301 |
| 68 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 77 | $47,759 | $620 | premium | 4.9% | (248) 964-1187 |
| 69 | NEVADA HEART AND VASCULAR CENTER RESH LLP | LAS VEGAS | NV | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 42 | 76 | $44,521 | $586 | premium | 9.5% | (702) 240-6482 |
| 70 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 75 | $79,048 | $1,054 | premium | 1.5% | (239) 936-2316 |
| 71 | RADIOLOGISTS OF NORTH IOWA PC | MASON CITY | IA | DIAGNOSTIC RADIOLOGY | 14 | 75 | $23,100 | $308 | premium | 11.4% | (641) 424-0102 |
| 72 | LIMA RADIOLOGICAL ASSOCIATES | LIMA | OH | DIAGNOSTIC RADIOLOGY | 47 | 74 | $35,594 | $481 | premium | 3.2% | (419) 226-9023 |
| 73 | THE CURATORS OF THE UNIVERSITY OF MISSOURI | COLUMBIA | MO | PHYSICIAN ASSISTANT | 1116 | 74 | $36,010 | $487 | premium | 4.1% | (573) 882-2667 |
| 74 | NAPERVILLE RADIOLOGISTS SC | NAPERVILLE | IL | DIAGNOSTIC RADIOLOGY | 16 | 74 | $62,772 | $848 | premium | 2.4% | (630) 484-5493 |
| 75 | CATAWBA RADIOLOGICAL ASSOCIATES INC | HICKORY | NC | DIAGNOSTIC RADIOLOGY | 17 | 73 | $30,295 | $415 | premium | 3.9% | (828) 315-7030 |
| 76 | FPA HOSPITAL BASED | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 427 | 72 | $53,033 | $737 | premium | 3.8% | (212) 252-6004 |
| 77 | CARDIOVASCULAR INSTITUTE OF THE SOUTH, LLC | LAFAYETTE | LA | NURSE PRACTITIONER | 142 | 72 | $124,920 | $1,735 | premium | 7.5% | (337) 289-8429 |
| 78 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 71 | $79,307 | $1,117 | premium | 2.3% | (309) 655-2000 |
| 79 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | CO | DIAGNOSTIC RADIOLOGY | 74 | 71 | $32,731 | $461 | premium | 8.3% | (937) 558-3800 |
| 80 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 70 | $36,540 | $522 | premium | 1.5% | (254) 724-2663 |
| 81 | SOUTH FLORIDA MEDICAL IMAGING PA | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 44 | 70 | $61,930 | $885 | premium | 1.4% | (954) 267-6650 |
| 82 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | MI | DIAGNOSTIC RADIOLOGY | 32 | 70 | $24,990 | $357 | premium | 4.5% | (231) 935-5000 |
| 83 | EDISON RADIOLOGY GROUP PA JFK MEDICAL CENTER | EDISON | NJ | DIAGNOSTIC RADIOLOGY | 23 | 70 | $37,030 | $529 | premium | 6.5% | (732) 321-7540 |
| 84 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 69 | $24,012 | $348 | premium | 4.9% | — |
| 85 | CARDIOVASCULAR ASSOCIATION, P.L.L.C. | HUMBLE | TX | INTERVENTIONAL CARDIOLOGY | 52 | 69 | $58,634 | $850 | premium | 1.5% | (281) 446-6656 |
| 86 | RADIOLOGY ASSOCIATES OF WAUSAU SC | WAUSAU | WI | DIAGNOSTIC RADIOLOGY | 23 | 68 | $70,405 | $1,035 | premium | 6.5% | (715) 675-3391 |
| 87 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 68 | $21,069 | $310 | premium | 3.5% | (501) 686-8000 |
| 88 | NORTH BROWARD RADIOLOGISTS, P.A. | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 23 | 66 | $30,690 | $465 | premium | 1.3% | (954) 262-1140 |
| 89 | SAINT LUKES PHYSICIAN GROUP INC | KANSAS CITY | AR | NURSE PRACTITIONER | 1228 | 66 | $56,925 | $862 | premium | 3.4% | — |
| 90 | ROPER RADIOLOGISTS PA | CHARLESTON | SC | DIAGNOSTIC RADIOLOGY | 40 | 64 | $74,176 | $1,159 | premium | 4.6% | (843) 724-2161 |
| 91 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 64 | $99,328 | $1,552 | premium | 1.4% | — |
| 92 | MECKLENBURG RADIOLOGY ASSOCIATES PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 94 | 63 | $22,806 | $362 | premium | 3.4% | (704) 332-1291 |
| 93 | CATHOLIC HEALTH INITIATIVES-IOWA CORP | WEST DES MOINES | IA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 113 | 62 | $21,576 | $348 | premium | 9.4% | (515) 358-8000 |
| 94 | LAREDO CARDIOVASCULAR CONSULTANTS,P.A. | LAREDO | TX | INTERNAL MEDICINE | 4 | 62 | $58,528 | $944 | premium | 1.4% | (956) 725-1228 |
| 95 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | ME | DIAGNOSTIC RADIOLOGY | 281 | 61 | $22,204 | $364 | premium | 64.9% | (207) 828-2160 |
| 96 | HOUSTON NORTHWEST RADIOLOGY ASSN | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 31 | 61 | $42,335 | $694 | premium | 1.3% | (281) 440-5158 |
| 97 | BLUE RIDGE RADIOLOGY PC | LYNCHBURG | TN | DIAGNOSTIC RADIOLOGY | 76 | 59 | $13,275 | $225 | premium | 2.5% | (423) 968-1144 |
| 98 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | TX | DIAGNOSTIC RADIOLOGY | 243 | 58 | $24,260 | $418 | premium | 1.3% | (614) 566-5600 |
| 99 | DIAGNOSTIC IMAGING ASSOCIATES, P.C. | DES MOINES | IA | DIAGNOSTIC RADIOLOGY | 21 | 58 | $30,044 | $518 | premium | 8.8% | (515) 643-2667 |
| 100 | MOUNTAIN HOME RADIOLOGY CONSULTANTS | MOUNTAIN HOME | AR | DIAGNOSTIC RADIOLOGY | 5 | 58 | $14,500 | $250 | premium | 3.0% | (870) 425-6322 |
Showing the top 100 of 387 groups — the full ranking is part of the market analytics platform — built, not launched yet. Notify me at launch →
*Share of the state's disclosed Medicare-FFS services for the primary code, counted once per clinician. "St" is the state the volume was billed from: a group appears in each state where its clinicians bill Medicare, with that state's volume and share ("City" is the group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group, so shares reflect attributable volume. See Methods.
Comparing against an all-payer estimate?
These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →