77065 — Diagnostic mammography of 1 breast
319,697 observed fee-for-service (50%) · ~322,694 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 | 77065 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 6,937 | $3,104,710 | $448 | premium | 14.5% | (212) 263-9700 |
| 2 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 4,563 | $1,275,255 | $279 | premium | 24.7% | (888) 972-9700 |
| 3 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 3,419 | $2,445,942 | $715 | premium | 5.5% | (916) 681-8852 |
| 4 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 3,345 | $1,960,295 | $586 | premium | 13.4% | (704) 362-1945 |
| 5 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 3,021 | $455,861 | $151 | premium | 8.3% | (817) 321-0470 |
| 6 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 2,900 | $341,160 | $118 | premium | 25.1% | — |
| 7 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 2,589 | $570,257 | $220 | premium | 8.3% | — |
| 8 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 2,535 | $972,148 | $383 | premium | 4.1% | (858) 455-9100 |
| 9 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 2,303 | $285,564 | $124 | premium | 10.2% | (757) 466-6870 |
| 10 | METHODIST RADIOLOGY ASSOCIATES, PLLC | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 15 | 2,151 | $440,070 | $205 | premium | 5.9% | (281) 737-1900 |
| 11 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 2,080 | $284,302 | $137 | premium | 6.6% | — |
| 12 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 2,016 | $563,943 | $280 | premium | 47.9% | (401) 626-3900 |
| 13 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 1,972 | $518,089 | $263 | premium | 10.7% | (888) 601-0943 |
| 14 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 1,962 | $515,156 | $263 | premium | 11.7% | (248) 964-1187 |
| 15 | NORTHSIDE RADIOLOGY ASSOCIATES LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 370 | 1,960 | $584,080 | $298 | premium | 10.8% | (404) 851-6577 |
| 16 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 1,958 | $550,295 | $281 | premium | 4.1% | (904) 399-5550 |
| 17 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 1,833 | $234,144 | $128 | premium | 11.0% | (616) 363-7272 |
| 18 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 1,798 | $305,302 | $170 | premium | 12.1% | (314) 747-3000 |
| 19 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 244 | 1,758 | $497,044 | $283 | premium | 3.7% | (212) 772-3111 |
| 20 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 1,615 | $208,335 | $129 | premium | 11.6% | (812) 422-3254 |
| 21 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 1,582 | $388,414 | $246 | premium | 3.3% | (239) 936-2316 |
| 22 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 1,582 | $214,973 | $136 | premium | 6.4% | (973) 971-6866 |
| 23 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 1,578 | $141,936 | $90 | premium | 7.3% | — |
| 24 | MEDICAL ASSOCIATES OF NORTHWEST ARKANSAS, PA | FAYETTEVILLE | AR | FAMILY PRACTICE | 106 | 1,563 | $594,666 | $380 | premium | 21.4% | (479) 521-0200 |
| 25 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 1,555 | $123,125 | $79 | premium | 4.9% | — |
| 26 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 1,503 | $687,585 | $457 | premium | 3.1% | (914) 241-1050 |
| 27 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 1,469 | $546,698 | $372 | premium | 4.1% | (713) 592-5433 |
| 28 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 1,456 | $823,468 | $566 | premium | 2.4% | (916) 983-7476 |
| 29 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 1,445 | $233,461 | $162 | premium | 5.7% | (617) 732-5500 |
| 30 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 1,431 | $108,756 | $76 | premium | 17.2% | (502) 928-1050 |
| 31 | UCLA RADIOLOGY MEDICAL GROUP | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 191 | 1,408 | $730,407 | $519 | premium | 2.3% | (310) 301-6800 |
| 32 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 1,407 | $419,712 | $298 | premium | 3.9% | (855) 504-4544 |
| 33 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 74 | 1,402 | $209,620 | $150 | premium | 6.5% | (937) 558-3800 |
| 34 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 1,360 | $942,300 | $693 | premium | 10.7% | (520) 290-4842 |
| 35 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 1,328 | $185,930 | $140 | premium | 8.9% | (314) 941-5600 |
| 36 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 1,308 | $822,038 | $628 | premium | 2.7% | (904) 953-2000 |
| 37 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 1,289 | $190,541 | $148 | premium | 5.7% | (804) 272-8806 |
| 38 | SOUTHWEST DIAGNOSTIC IMAGING LLC | SCOTTSDALE | AZ | DIAGNOSTIC RADIOLOGY | 124 | 1,278 | $747,149 | $585 | premium | 10.0% | (480) 425-5000 |
| 39 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 1,278 | $270,306 | $212 | premium | 5.1% | (252) 752-5000 |
| 40 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 1,260 | $328,224 | $260 | premium | 2.6% | (954) 659-5000 |
| 41 | AMERICAN RADIOLOGY CONSULTANTS PLLC | DALLAS | TX | DIAGNOSTIC RADIOLOGY | 121 | 1,256 | $200,960 | $160 | premium | 3.5% | (214) 820-3216 |
| 42 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 1,235 | $704,219 | $570 | premium | 10.6% | (507) 284-2511 |
| 43 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 1,230 | $301,986 | $246 | premium | 3.9% | (309) 655-2000 |
| 44 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 1,212 | $192,708 | $159 | premium | 5.6% | (614) 566-5600 |
| 45 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 1,208 | $163,080 | $135 | premium | 5.6% | (614) 228-7231 |
| 46 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 1,205 | $112,013 | $93 | premium | 47.7% | (801) 261-8346 |
| 47 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | ME | DIAGNOSTIC RADIOLOGY | 281 | 1,162 | $145,242 | $125 | premium | 44.9% | (207) 828-2160 |
| 48 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 1,126 | $180,645 | $160 | premium | 4.4% | (781) 395-4909 |
| 49 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 1,107 | $110,238 | $100 | premium | 3.5% | — |
| 50 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 1,105 | $810,401 | $733 | premium | 8.7% | (800) 603-0558 |
| 51 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 1,093 | $249,554 | $228 | premium | 4.3% | (617) 724-0287 |
| 52 | HURON VALLEY RADIOLOGY PC | YPSILANTI | MI | DIAGNOSTIC RADIOLOGY | 77 | 1,087 | $143,128 | $132 | premium | 6.5% | (734) 712-8350 |
| 53 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 1,083 | $86,748 | $80 | premium | 3.0% | (254) 724-2663 |
| 54 | MECKLENBURG RADIOLOGY ASSOCIATES PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 94 | 1,072 | $149,008 | $139 | premium | 4.3% | (704) 332-1291 |
| 55 | ROSE IMAGING SPECIALISTS PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 43 | 1,071 | $542,779 | $507 | premium | 3.0% | (866) 257-6864 |
| 56 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 1,045 | $133,108 | $127 | premium | 9.0% | (864) 587-3000 |
| 57 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 1,037 | $108,815 | $105 | premium | 4.8% | (517) 279-5400 |
| 58 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 1,037 | $380,290 | $367 | premium | 2.2% | (352) 787-5858 |
| 59 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 1,035 | $302,220 | $292 | premium | 1.7% | (650) 723-4000 |
| 60 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 1,021 | $141,858 | $139 | premium | 2.1% | (813) 745-4673 |
| 61 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 1,020 | $98,940 | $97 | premium | 4.1% | (919) 684-8111 |
| 62 | PHYSICIANS OF CAPE COD HOSPITAL | HYANNIS | MA | NURSE PRACTITIONER | 318 | 1,019 | $131,566 | $129 | premium | 4.0% | (774) 552-6000 |
| 63 | HENRY FORD HEALTH SYSTEM | DETROIT | MI | PHYSICIAN ASSISTANT | 2536 | 995 | $119,400 | $120 | premium | 5.9% | (313) 916-2600 |
| 64 | QUANTUM RADIOLOGY PC | MARIETTA | GA | DIAGNOSTIC RADIOLOGY | 104 | 992 | $211,054 | $213 | premium | 5.4% | (770) 732-4000 |
| 65 | MEMPHIS RADIOLOGICAL PC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 51 | 988 | $157,768 | $160 | premium | 6.6% | (901) 561-6000 |
| 66 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | MI | DIAGNOSTIC RADIOLOGY | 32 | 978 | $120,294 | $123 | premium | 5.8% | (231) 935-5000 |
| 67 | MORAN ROWEN AND DORSEY INC | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 35 | 976 | $166,580 | $171 | premium | 1.6% | (714) 628-3305 |
| 68 | PROGRESSIVE PHYSICIAN ASSOC INC | PHILLIPSBURG | PA | DIAGNOSTIC RADIOLOGY | 160 | 976 | $155,617 | $159 | premium | 3.1% | (908) 859-6700 |
| 69 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 975 | $133,516 | $137 | premium | 1.6% | (626) 256-4673 |
| 70 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 972 | $275,970 | $284 | premium | 1.6% | — |
| 71 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 954 | $95,400 | $100 | premium | 4.2% | (804) 288-8327 |
| 72 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 945 | $333,585 | $353 | premium | 3.0% | (630) 469-9200 |
| 73 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 928 | $594,024 | $640 | premium | 1.5% | (415) 600-1020 |
| 74 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 910 | $121,320 | $133 | premium | 2.9% | (312) 563-2875 |
| 75 | RADIOLOGY AND MEDICAL IMAGERY OF NEWNAN PC | NEWNAN | GA | DIAGNOSTIC RADIOLOGY | 35 | 894 | $117,114 | $131 | premium | 4.9% | (770) 400-1000 |
| 76 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 891 | $491,931 | $552 | premium | 7.0% | (480) 753-6161 |
| 77 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 882 | $127,278 | $144 | premium | 12.2% | (319) 364-0121 |
| 78 | DIAGNOSTIC X-RAY PHYSICIANS, PSC | LOUISVILLE | KY | DIAGNOSTIC RADIOLOGY | 36 | 875 | $135,212 | $155 | premium | 10.5% | (502) 893-1000 |
| 79 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 868 | $125,979 | $145 | premium | 11.0% | (405) 271-4311 |
| 80 | LAHEY CLINIC INC | BURLINGTON | MA | NURSE PRACTITIONER | 1400 | 867 | $152,503 | $176 | premium | 3.4% | — |
| 81 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 859 | $85,223 | $99 | premium | 11.7% | (501) 202-2093 |
| 82 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 853 | $112,333 | $132 | premium | 5.1% | (734) 763-5459 |
| 83 | QUANTUM IMAGING AND THERAPEUTIC ASSOCIATES INC | HARRISBURG | PA | DIAGNOSTIC RADIOLOGY | 90 | 853 | $126,493 | $148 | premium | 2.7% | (717) 932-5200 |
| 84 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 847 | $334,040 | $394 | premium | 5.6% | (901) 683-0055 |
| 85 | LAKELAND RADIOLOGISTS P A | FLOWOOD | MS | DIAGNOSTIC RADIOLOGY | 29 | 845 | $101,224 | $120 | premium | 14.9% | (601) 936-2390 |
| 86 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 823 | $128,245 | $156 | premium | 1.7% | (305) 689-5437 |
| 87 | TRISTATE IMG (IMAGING MEDICAL GROUP) INC | CINCINNATI | OH | DIAGNOSTIC RADIOLOGY | 44 | 822 | $74,186 | $90 | premium | 3.8% | (513) 865-1331 |
| 88 | BREAST IMAGING RADIOLOGISTS A MEDICAL GROUP INC | LONG BEACH | CA | DIAGNOSTIC RADIOLOGY | 5 | 816 | $105,264 | $129 | premium | 1.3% | (844) 825-9300 |
| 89 | RADIOLOGY SUBSPECIALISTS OF NORTHERN ILLINOIS LLC | GENEVA | IL | DIAGNOSTIC RADIOLOGY | 32 | 812 | $157,505 | $194 | premium | 2.6% | (630) 208-4412 |
| 90 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 809 | $49,754 | $62 | premium | 10.3% | (918) 743-8838 |
| 91 | ENGLEWOOD RADIOLOGIC GROUP P A | ENGLEWOOD | NJ | DIAGNOSTIC RADIOLOGY | 125 | 792 | $75,240 | $95 | premium | 3.2% | (201) 894-3480 |
| 92 | RWJBH OBSERVATION ASSOCIATES LLC | SOMERVILLE | NJ | PHYSICIAN ASSISTANT | 937 | 781 | $186,416 | $239 | premium | 3.1% | (908) 685-2200 |
| 93 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 776 | $137,352 | $177 | premium | 3.1% | (508) 334-1000 |
| 94 | RADIOLOGY PHYSICIANS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 61 | 773 | $125,999 | $163 | premium | 3.6% | (937) 208-8000 |
| 95 | PROFESSIONAL RADIOLOGY INC | CINCINNATI | OH | DIAGNOSTIC RADIOLOGY | 44 | 770 | $71,829 | $93 | premium | 3.6% | (513) 624-4500 |
| 96 | BREAST CARE SPECIALISTS | ATLANTA | GA | GENERAL SURGERY | 12 | 767 | $232,401 | $303 | premium | 4.2% | 4042558086208 |
| 97 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | MA | DIAGNOSTIC RADIOLOGY | 60 | 761 | $144,221 | $190 | premium | 3.0% | (413) 827-7400 |
| 98 | RADIOLOGY OF INDIANA P C | INDIANAPOLIS | IN | DIAGNOSTIC RADIOLOGY | 116 | 759 | $115,020 | $152 | premium | 5.5% | (317) 579-2150 |
| 99 | RADIOLOGY GROUP PC SC | DAVENPORT | IA | DIAGNOSTIC RADIOLOGY | 18 | 756 | $128,520 | $170 | premium | 10.4% | (563) 344-5490 |
| 100 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 745 | $103,133 | $138 | premium | 12.5% | (402) 717-4760 |
Showing the top 100 of 947 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 →