73700 — Ct scan of leg without contrast
121,402 observed fee-for-service (49%) · ~124,765 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; 2 states without payer-mix data excluded. 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 | 73700 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 2,846 | $683,972 | $240 | premium | 11.4% | (817) 321-0470 |
| 2 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 1,538 | $327,700 | $213 | premium | 15.8% | (616) 363-7272 |
| 3 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 1,294 | $429,122 | $332 | premium | 3.9% | (760) 773-1251 |
| 4 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 1,255 | $586,142 | $467 | premium | 4.7% | (904) 399-5550 |
| 5 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 1,254 | $807,559 | $644 | premium | 3.8% | (916) 681-8852 |
| 6 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 1,248 | $368,490 | $295 | premium | 72.4% | (401) 626-3900 |
| 7 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,095 | $746,318 | $682 | premium | 5.0% | (212) 263-9700 |
| 8 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 1,077 | $940,049 | $873 | premium | 12.4% | (480) 753-6161 |
| 9 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 1,049 | $514,306 | $490 | premium | 4.8% | (631) 225-7200 |
| 10 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 1,044 | $377,104 | $361 | premium | 10.5% | (617) 724-0287 |
| 11 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 951 | $341,575 | $359 | premium | 5.7% | — |
| 12 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 950 | $151,954 | $160 | premium | 16.6% | — |
| 13 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 936 | $276,428 | $295 | premium | 9.6% | (248) 964-1187 |
| 14 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 894 | $381,212 | $426 | premium | 2.7% | (916) 983-7476 |
| 15 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 838 | $933,844 | $1,114 | premium | 2.6% | (415) 600-1020 |
| 16 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 813 | $182,468 | $224 | premium | 3.3% | (254) 724-2663 |
| 17 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 794 | $231,625 | $292 | premium | 6.8% | (704) 362-1945 |
| 18 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 794 | $332,939 | $419 | premium | 10.5% | (888) 972-9700 |
| 19 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 791 | $477,735 | $604 | premium | 2.4% | — |
| 20 | MEDICAL SCANNING CONSULTANTS PA | ST LOUIS PARK | MN | DIAGNOSTIC RADIOLOGY | 81 | 789 | $612,974 | $777 | premium | 7.2% | (952) 541-1840 |
| 21 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 778 | $303,033 | $390 | premium | 3.1% | (281) 206-9020 |
| 22 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 748 | $754,517 | $1,009 | premium | 6.8% | (507) 284-2511 |
| 23 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 742 | $123,750 | $167 | premium | 6.4% | (252) 752-5000 |
| 24 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 731 | $419,106 | $573 | premium | 8.4% | (800) 603-0558 |
| 25 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 706 | $125,668 | $178 | premium | 4.3% | — |
| 26 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 680 | $104,040 | $153 | premium | 5.8% | (757) 466-6870 |
| 27 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 676 | $115,344 | $171 | premium | 5.0% | — |
| 28 | ROPER RADIOLOGISTS PA | CHARLESTON | SC | DIAGNOSTIC RADIOLOGY | 40 | 672 | $311,438 | $463 | premium | 11.7% | (843) 724-2161 |
| 29 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 671 | $93,940 | $140 | premium | 5.7% | (804) 288-8327 |
| 30 | RADIOLOGY ASSOCIATES OF RIDGEWOOD P A | WALDWICK | NJ | DIAGNOSTIC RADIOLOGY | 20 | 658 | $313,859 | $477 | premium | 5.4% | (201) 445-8822 |
| 31 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 646 | $427,670 | $662 | premium | 5.6% | (919) 684-8111 |
| 32 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 640 | $93,586 | $146 | premium | 4.7% | (517) 279-5400 |
| 33 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 637 | $114,138 | $179 | premium | 5.5% | (804) 272-8806 |
| 34 | VISTA RADIOLOGY, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 68 | 625 | $157,458 | $252 | premium | 7.4% | (865) 546-9484 |
| 35 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 617 | $395,904 | $642 | premium | 2.5% | (855) 504-4544 |
| 36 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 616 | $102,872 | $167 | premium | 8.7% | (812) 422-3254 |
| 37 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 612 | $962,712 | $1,573 | premium | 2.3% | (904) 953-2000 |
| 38 | TRIAD RADIOLOGY ASSOCIATES PLLC | WINSTON SALEM | NC | DIAGNOSTIC RADIOLOGY | 78 | 597 | $97,908 | $164 | premium | 5.1% | (336) 718-7800 |
| 39 | BOULDERCENTRE FOR ORTHOPEDICS PC | BOULDER | CO | PHYSICIAN ASSISTANT | 55 | 568 | $568,000 | $1,000 | premium | 6.6% | (303) 449-2730 |
| 40 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 554 | $366,685 | $662 | premium | 4.1% | (614) 228-7231 |
| 41 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 548 | $79,049 | $144 | premium | 10.6% | (918) 743-8838 |
| 42 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 545 | $236,406 | $434 | premium | 1.7% | (858) 455-9100 |
| 43 | DRS HARRIS BIRKHILL WANG SONGE AND ASSOC PC | DEARBORN | MI | DIAGNOSTIC RADIOLOGY | 62 | 527 | $78,440 | $149 | premium | 5.4% | (313) 593-7301 |
| 44 | DARTMOUTH-HITCHCOCK CLINIC | LEBANON | NH | PHYSICIAN ASSISTANT | 1441 | 511 | $448,729 | $878 | premium | 24.2% | (603) 650-5000 |
| 45 | RADIOLOGY ASSOCIATES OF NORTHERN KENTUCKY PLLC | EDGEWOOD | KY | DIAGNOSTIC RADIOLOGY | 56 | 497 | $85,207 | $171 | premium | 14.6% | (859) 301-2160 |
| 46 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 494 | $368,492 | $746 | premium | 1.9% | (954) 659-5000 |
| 47 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 486 | $89,419 | $184 | premium | 14.1% | (501) 202-2093 |
| 48 | MECKLENBURG RADIOLOGY ASSOCIATES PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 94 | 484 | $101,640 | $210 | premium | 4.2% | (704) 332-1291 |
| 49 | UPSTATE ORTHOPEDICS, LLP | CAMILLUS | NY | ORTHOPEDIC SURGERY | 34 | 484 | $101,405 | $210 | premium | 2.2% | (315) 551-6000 |
| 50 | PARTNERS IMAGING CENTER OF SARASOTA LLC | SARASOTA | FL | DIAGNOSTIC RADIOLOGY | 13 | 484 | $189,142 | $391 | premium | 1.8% | (941) 951-2100 |
| 51 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | MA | DIAGNOSTIC RADIOLOGY | 22 | 483 | $79,695 | $165 | premium | 4.9% | (508) 679-7136 |
| 52 | PROGRESSIVE PHYSICIAN ASSOC INC | PHILLIPSBURG | PA | DIAGNOSTIC RADIOLOGY | 160 | 455 | $87,582 | $192 | premium | 3.4% | (908) 859-6700 |
| 53 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 451 | $65,775 | $146 | premium | 6.3% | (206) 364-0500 |
| 54 | MUSCULOSKELETAL INSTITUTE OF LOUISIANA LLC | SHREVEPORT | LA | PHYSICIAN ASSISTANT | 28 | 440 | $313,824 | $713 | premium | 8.7% | (318) 635-3052 |
| 55 | RADIOLOGY ASSOCIATES LLC | OKLAHOMA CITY | OK | DIAGNOSTIC RADIOLOGY | 19 | 436 | $76,300 | $175 | premium | 8.4% | (405) 949-3011 |
| 56 | CALIFORNIA MANAGED IMAGING MEDICAL GROUP INC | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 64 | 429 | $273,211 | $637 | premium | 1.3% | (800) 841-4236 |
| 57 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 421 | $74,517 | $177 | premium | 15.4% | (402) 717-4760 |
| 58 | SUBURBAN RADIOLOGISTS, S.C. | HINSDALE | IL | DIAGNOSTIC RADIOLOGY | 22 | 420 | $96,075 | $229 | premium | 2.5% | (630) 856-9000 |
| 59 | NORTH FLORIDA SURGEONS PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 331 | 417 | $250,200 | $600 | premium | 1.6% | (904) 396-1725 |
| 60 | ASSOCIATION OF UNIVERSITY RADIOLOGISTS, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 35 | 417 | $76,744 | $184 | premium | 4.9% | (865) 305-9661 |
| 61 | TOWER HEALTH MEDICAL GROUP | WEST READING | PA | INTERNAL MEDICINE | 590 | 413 | $63,392 | $153 | premium | 3.1% | (484) 628-5455 |
| 62 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 410 | $129,344 | $315 | premium | 1.5% | (352) 787-5858 |
| 63 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 404 | $62,620 | $155 | premium | 3.5% | (757) 594-3900 |
| 64 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 395 | $111,372 | $282 | premium | 4.4% | (314) 941-5600 |
| 65 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 391 | $116,127 | $297 | premium | 2.4% | (309) 655-2000 |
| 66 | GRACE CLINIC OF LUBBOCK | LUBBOCK | TX | PHYSICIAN ASSISTANT | 45 | 390 | $46,274 | $119 | premium | 1.6% | (806) 744-7223 |
| 67 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 390 | $65,657 | $168 | premium | 12.6% | (319) 364-0121 |
| 68 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 74 | 379 | $82,296 | $217 | premium | 2.8% | (937) 558-3800 |
| 69 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 375 | $89,625 | $239 | premium | 2.8% | (614) 566-5600 |
| 70 | DRS. MCCLOW, CLARK AND BERK PA | JACKSONVILLE | FL | DIAGNOSTIC RADIOLOGY | 22 | 373 | $129,837 | $348 | premium | 1.4% | (904) 381-9994 |
| 71 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 368 | $59,099 | $161 | premium | 6.4% | (864) 587-3000 |
| 72 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 361 | $103,246 | $286 | premium | 1.1% | (877) 827-7463 |
| 73 | RADIOLOGY IMAGING ASSOCIATES | PORT ST LUCIE | FL | DIAGNOSTIC RADIOLOGY | 11 | 356 | $210,681 | $592 | premium | 1.3% | (772) 905-3589 |
| 74 | CERTIFIED FOOT AND ANKLE SPECIALISTS | BOCA RATON | FL | PODIATRY | 12 | 348 | $176,784 | $508 | premium | 1.3% | (561) 995-0229 |
| 75 | HURON VALLEY RADIOLOGY PC | YPSILANTI | MI | DIAGNOSTIC RADIOLOGY | 77 | 346 | $56,874 | $164 | premium | 3.6% | (734) 712-8350 |
| 76 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 340 | $182,032 | $535 | premium | 1.0% | (650) 723-4000 |
| 77 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 339 | $82,302 | $243 | premium | 8.3% | (203) 688-4242 |
| 78 | REVERE HEALTH PC | PROVO | UT | PHYSICIAN ASSISTANT | 410 | 336 | $132,218 | $394 | premium | 23.1% | — |
| 79 | SHANNON CLINIC | SAN ANGELO | TX | NURSE PRACTITIONER | 515 | 335 | $89,110 | $266 | premium | 1.3% | (325) 747-1511 |
| 80 | QUANTUM RADIOLOGY PC | MARIETTA | GA | DIAGNOSTIC RADIOLOGY | 104 | 334 | $94,819 | $284 | premium | 4.5% | (770) 732-4000 |
| 81 | NORTHSIDE RADIOLOGY ASSOCIATES LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 370 | 333 | $216,117 | $649 | premium | 4.5% | (404) 851-6577 |
| 82 | WINCHESTER RADIOLOGISTS PC | WINCHESTER | VA | DIAGNOSTIC RADIOLOGY | 79 | 331 | $79,440 | $240 | premium | 2.8% | (540) 686-1600 |
| 83 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 328 | $65,650 | $200 | premium | 9.5% | (501) 686-8000 |
| 84 | HAMPTON ROADS RADIOLOGY ASSOCIATES PC | VIRGINIA BEACH | VA | DIAGNOSTIC RADIOLOGY | 37 | 312 | $59,904 | $192 | premium | 2.7% | (757) 916-9630 |
| 85 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 309 | $98,398 | $318 | premium | 0.9% | (800) 926-8273 |
| 86 | PROLIANCE SURGEONS INC P S | ISSAQUAH | WA | PHYSICIAN ASSISTANT | 395 | 307 | $204,440 | $666 | premium | 4.3% | (425) 313-5422 |
| 87 | MILLENNIUM MEDICAL IMAGING PC | SARATOGA SPRINGS | NY | DIAGNOSTIC RADIOLOGY | 33 | 303 | $54,621 | $180 | premium | 1.4% | (518) 583-8461 |
| 88 | RADIOLOGY OF HUNSTVILLE PC | HUNTSVILLE | AL | DIAGNOSTIC RADIOLOGY | 63 | 298 | $77,144 | $259 | premium | 6.1% | 2565390457145 |
| 89 | NORTHLAND RADIOLOGY INC | N KANSAS CITY | MO | DIAGNOSTIC RADIOLOGY | 15 | 297 | $62,952 | $212 | premium | 3.3% | (913) 642-4900 |
| 90 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 297 | $60,610 | $204 | premium | 3.0% | (617) 732-5500 |
| 91 | SIERRA NEVADA MEDICAL IMAGING | GARDNERVILLE | CA | DIAGNOSTIC RADIOLOGY | 5 | 296 | $54,351 | $184 | premium | 0.9% | (775) 782-1500 |
| 92 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 295 | $59,464 | $202 | premium | 2.4% | (973) 971-6866 |
| 93 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 292 | $81,019 | $277 | premium | 1.3% | — |
| 94 | COMMUNITY HOSPITAL OF THE MONTEREY PENINSULA | MONTEREY | CA | EMERGENCY MEDICINE | 141 | 290 | $106,164 | $366 | premium | 0.9% | (831) 624-5311 |
| 95 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 288 | $159,441 | $554 | premium | 11.3% | (702) 732-6000 |
| 96 | NORTHERN ARIZONA RADIOLOGY P C | FLAGSTAFF | AZ | DIAGNOSTIC RADIOLOGY | 11 | 277 | $71,304 | $257 | premium | 3.2% | (928) 779-3366 |
| 97 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 268 | $99,414 | $371 | premium | 8.7% | (319) 678-8201 |
| 98 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | MI | DIAGNOSTIC RADIOLOGY | 244 | 267 | $63,599 | $238 | premium | 2.7% | (212) 772-3111 |
| 99 | ADVANCED GENERAL RADIOLOGY LLC | NEWTON | KS | DIAGNOSTIC RADIOLOGY | 2 | 264 | $51,480 | $195 | premium | 7.1% | (316) 283-2700 |
| 100 | STEPHEN W BROWN AND RADIOLOGY ASSOCIATES OF AUGUSTA LLP | AUGUSTA | GA | DIAGNOSTIC RADIOLOGY | 19 | 264 | $70,798 | $268 | premium | 3.5% | (706) 774-5035 |
Showing the top 100 of 756 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 →