53,710 observed fee-for-service (50%) · ~54,095 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 payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Or just look at it: nuclear heart imaging (78452) in Arizona is open as a live example — the full paid view, real data.
View the live example →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 activate to sort | City activate to sort | St activate to sort | Specialty activate to sort | Providers activate to sort | 73060 svcs sorted descending — activate to reverse | Submitted charges activate to sort | Avg charge activate to sort | Medicare $ locked column | Share* activate to sort | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NORTHEAST ORTHOPAEDIC ALLIANCE PLLC | CONCORD | MA | PHYSICIAN ASSISTANT | 268 | 1,188 | $138,351 | $116 | premium | 15.7% | (603) 883-0091 |
| 2 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 1,073 | $35,103 | $33 | premium | 7.4% | (817) 321-0470 |
| 3 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 641 | $72,433 | $113 | premium | 4.4% | — |
| 4 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 607 | $65,348 | $108 | premium | 4.0% | (916) 681-8852 |
| 5 | STONY BROOK RADIOLOGY, UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | DIAGNOSTIC RADIOLOGY | 59 | 558 | $34,737 | $62 | premium | 3.8% | (631) 638-2121 |
| 6 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 542 | $16,273 | $30 | premium | 53.5% | (401) 626-3900 |
| 7 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 516 | $14,659 | $28 | premium | 13.3% | (206) 364-0500 |
| 8 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 513 | $42,582 | $83 | premium | 3.4% | (212) 263-9700 |
| 9 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 506 | $24,620 | $49 | premium | 11.6% | (248) 964-1187 |
| 10 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 498 | $17,299 | $35 | premium | 11.4% | (616) 363-7272 |
| 11 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 493 | $20,286 | $41 | premium | 6.5% | (508) 334-1000 |
| 12 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 417 | $17,391 | $42 | premium | 5.0% | — |
| 13 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 402 | $17,186 | $43 | premium | 2.8% | (254) 724-2663 |
| 14 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 389 | $15,807 | $41 | premium | 5.1% | (617) 724-0287 |
| 15 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 388 | $11,201 | $29 | premium | 19.7% | — |
| 16 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 365 | $19,900 | $55 | premium | 8.2% | (704) 362-1945 |
| 17 | UT PHYSICIANS | HOUSTON | TX | NURSE PRACTITIONER | 1758 | 356 | $20,586 | $58 | premium | 2.4% | (713) 566-5000 |
| 18 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 351 | $7,020 | $20 | premium | 8.6% | (804) 288-8327 |
| 19 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 349 | $15,878 | $45 | premium | 3.1% | (352) 265-8990 |
| 20 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 347 | $22,641 | $65 | premium | 2.4% | (281) 206-9020 |
| 21 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 346 | $20,195 | $58 | premium | 2.3% | (916) 983-7476 |
| 22 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 334 | $8,310 | $25 | premium | 8.2% | (804) 272-8806 |
| 23 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 322 | $25,216 | $78 | premium | 2.9% | (904) 399-5550 |
| 24 | MAIMONIDES MEDICAL CENTER - MMC RADIOLOGY FPP | BROOKLYN | NY | DIAGNOSTIC RADIOLOGY | 57 | 322 | $6,765 | $21 | premium | 2.2% | (718) 283-6158 |
| 25 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 318 | $10,812 | $34 | premium | 12.7% | (812) 422-3254 |
| 26 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 315 | $15,750 | $50 | premium | 2.1% | (877) 827-7463 |
| 27 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 313 | $26,993 | $86 | premium | 2.1% | (713) 592-5433 |
| 28 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 312 | $9,012 | $29 | premium | 7.0% | (252) 752-5000 |
| 29 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 301 | $10,552 | $35 | premium | 5.0% | (614) 293-8315 |
| 30 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 294 | $7,938 | $27 | premium | 7.2% | (757) 594-3900 |
| 31 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 293 | $27,190 | $93 | premium | 1.9% | (650) 723-4000 |
| 32 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 289 | $8,709 | $30 | premium | 15.8% | (859) 257-1412 |
| 33 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 271 | $6,725 | $25 | premium | 4.5% | (517) 279-5400 |
| 34 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | OH | NURSE PRACTITIONER | 1504 | 269 | $6,187 | $23 | premium | 4.5% | (513) 584-1000 |
| 35 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 264 | $7,752 | $29 | premium | 1.8% | (214) 633-5555 |
| 36 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 261 | $10,440 | $40 | premium | 4.4% | (614) 566-5600 |
| 37 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 255 | $15,888 | $62 | premium | 12.1% | (913) 588-1227 |
| 38 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 254 | $11,298 | $44 | premium | 3.1% | — |
| 39 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 254 | $26,310 | $104 | premium | 1.7% | — |
| 40 | PROGRESSIVE PHYSICIAN ASSOC INC | PHILLIPSBURG | PA | DIAGNOSTIC RADIOLOGY | 160 | 253 | $8,349 | $33 | premium | 3.8% | (908) 859-6700 |
| 41 | NORTH BROWARD RADIOLOGISTS, P.A. | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 23 | 252 | $8,533 | $34 | premium | 2.2% | (954) 262-1140 |
| 42 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 252 | $11,035 | $44 | premium | 1.7% | (800) 926-8273 |
| 43 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 251 | $10,040 | $40 | premium | 19.8% | (203) 688-4242 |
| 44 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 251 | $29,232 | $116 | premium | 1.7% | (855) 504-4544 |
| 45 | MILLENNIUM MEDICAL IMAGING PC | SARATOGA SPRINGS | NY | DIAGNOSTIC RADIOLOGY | 33 | 250 | $7,250 | $29 | premium | 1.7% | (518) 583-8461 |
| 46 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 248 | $14,564 | $59 | premium | 3.0% | (309) 655-2000 |
| 47 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 248 | $8,829 | $36 | premium | 3.0% | (708) 216-8372 |
| 48 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 244 | $11,401 | $47 | premium | 12.1% | (205) 934-3460 |
| 49 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 243 | $26,710 | $110 | premium | 9.1% | (800) 603-0558 |
| 50 | RADIOLOGY ASSOCIATES OF ABILENE PA | ABILENE | TX | DIAGNOSTIC RADIOLOGY | 25 | 239 | $7,360 | $31 | premium | 1.6% | (325) 670-2000 |
| 51 | DARTMOUTH-HITCHCOCK CLINIC | LEBANON | NH | PHYSICIAN ASSISTANT | 1441 | 235 | $32,298 | $137 | premium | 29.0% | (603) 650-5000 |
| 52 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 235 | $5,581 | $24 | premium | 9.1% | (918) 743-8838 |
| 53 | LAHEY CLINIC INC | BURLINGTON | MA | NURSE PRACTITIONER | 1400 | 234 | $8,304 | $35 | premium | 3.1% | — |
| 54 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 232 | $20,356 | $88 | premium | 1.5% | (858) 455-9100 |
| 55 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 224 | $30,400 | $136 | premium | 2.0% | (904) 953-2000 |
| 56 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 222 | $19,519 | $88 | premium | 1.5% | (631) 225-7200 |
| 57 | STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER | JACKSON | MS | NURSE PRACTITIONER | 951 | 214 | $7,491 | $35 | premium | 13.1% | (601) 815-4775 |
| 58 | FPA HOSPITAL BASED | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 427 | 212 | $10,176 | $48 | premium | 1.4% | (212) 252-6004 |
| 59 | THE CURATORS OF THE UNIVERSITY OF MISSOURI | COLUMBIA | MO | PHYSICIAN ASSISTANT | 1116 | 210 | $6,922 | $33 | premium | 4.7% | (573) 882-2667 |
| 60 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 203 | $10,665 | $53 | premium | 13.0% | (319) 678-8201 |
| 61 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 197 | $5,516 | $28 | premium | 10.1% | (501) 686-8000 |
| 62 | SOUTH GEORGIA RADIOLOGY ASSOCIATES LLC | BAXLEY | GA | DIAGNOSTIC RADIOLOGY | 35 | 197 | $7,390 | $38 | premium | 7.0% | (912) 367-9841 |
| 63 | DRS HARRIS BIRKHILL WANG SONGE AND ASSOC PC | DEARBORN | MI | DIAGNOSTIC RADIOLOGY | 62 | 191 | $4,675 | $24 | premium | 4.4% | (313) 593-7301 |
| 64 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 191 | $13,147 | $69 | premium | 2.3% | (217) 544-6464 |
| 65 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 185 | $5,735 | $31 | premium | 15.2% | (402) 717-4760 |
| 66 | RADIOLOGY INC | HUNTINGTON | WV | DIAGNOSTIC RADIOLOGY | 28 | 185 | $7,034 | $38 | premium | 15.0% | (304) 526-1140 |
| 67 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 182 | $4,804 | $26 | premium | 3.1% | — |
| 68 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 179 | $5,316 | $30 | premium | 4.0% | (973) 971-6866 |
| 69 | RADIOLOGICAL PHYSICIAN ASSOCIATES INC | BRIDGEPORT | WV | DIAGNOSTIC RADIOLOGY | 28 | 178 | $6,408 | $36 | premium | 14.4% | (681) 342-1000 |
| 70 | UC REGENTS | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 99 | 172 | $6,364 | $37 | premium | 1.1% | (714) 456-7004 |
| 71 | OKLAHOMA RADIOLOGY GROUP P C | OKLAHOMA CITY | OK | DIAGNOSTIC RADIOLOGY | 61 | 162 | $6,613 | $41 | premium | 6.3% | (405) 272-7000 |
| 72 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 160 | $6,296 | $39 | premium | 34.9% | (801) 261-8346 |
| 73 | ILLINOIS BONE AND JOINT INSTITUTE, LLC | BANNOCKBURN | IL | ORTHOPEDIC SURGERY | 595 | 156 | $17,172 | $110 | premium | 1.9% | — |
| 74 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 156 | $5,022 | $32 | premium | 3.5% | (984) 215-5556 |
| 75 | PENINSULA ORTHOPAEDIC ASSOC PA | SALISBURY | MD | PHYSICIAN ASSISTANT | 57 | 150 | $10,350 | $69 | premium | 1.3% | (410) 749-4154 |
| 76 | ORTHOPEDIC SPECIALISTS OF SW FLORIDA, P.A. | FORT MYERS | FL | PHYSICIAN ASSISTANT | 46 | 146 | $18,206 | $125 | premium | 1.3% | (239) 334-7000 |
| 77 | WEST TENNESSEE BONE AND JOINT CLINIC PC | JACKSON | TN | ORTHOPEDIC SURGERY | 60 | 145 | $10,730 | $74 | premium | 3.2% | (731) 661-9825 |
| 78 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | MA | DIAGNOSTIC RADIOLOGY | 60 | 144 | $4,032 | $28 | premium | 1.9% | (413) 827-7400 |
| 79 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 139 | $3,977 | $29 | premium | 1.7% | (312) 563-2875 |
| 80 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 139 | $2,502 | $18 | premium | 2.1% | — |
| 81 | STEPHEN W BROWN AND RADIOLOGY ASSOCIATES OF AUGUSTA LLP | AUGUSTA | GA | DIAGNOSTIC RADIOLOGY | 19 | 137 | $6,052 | $44 | premium | 4.8% | (706) 774-5035 |
| 82 | INTELLIRAD IMAGING LLC | MIAMI | FL | DIAGNOSTIC RADIOLOGY | 61 | 133 | $3,992 | $30 | premium | 1.2% | (305) 854-4400 |
| 83 | TENNESSEE INTERVENTIONAL AND IMAGING ASSOCIATES PLLC | CHATTANOOGA | TN | DIAGNOSTIC RADIOLOGY | 32 | 132 | $2,847 | $22 | premium | 2.9% | (423) 778-7234 |
| 84 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 131 | $5,960 | $46 | premium | 2.9% | (314) 941-5600 |
| 85 | EDWARD W SPARROW HOSPITAL ASSOCIATION | LANSING | MI | NURSE PRACTITIONER | 694 | 129 | $2,678 | $21 | premium | 2.9% | (517) 484-4033 |
| 86 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 129 | $4,275 | $33 | premium | 1.7% | (617) 732-5500 |
| 87 | RADIOLOGY PHYSICIANS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 61 | 128 | $3,968 | $31 | premium | 2.1% | (937) 208-8000 |
| 88 | RADIOLOGISTS OF UNIV OF ROCHESTER | ROCHESTER | NY | DIAGNOSTIC RADIOLOGY | 134 | 127 | $6,860 | $54 | premium | 0.9% | — |
| 89 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 127 | $4,544 | $36 | premium | 6.4% | (864) 587-3000 |
| 90 | UNIVERSITY PROFESSIONAL SERVICES | PORTLAND | OR | PHYSICIAN ASSISTANT | 1717 | 125 | $2,736 | $22 | premium | 17.7% | (503) 494-8311 |
| 91 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 123 | $3,626 | $29 | premium | 1.1% | (813) 745-4673 |
| 92 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 122 | $14,848 | $122 | premium | 2.0% | (614) 228-7231 |
| 93 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 122 | $3,930 | $32 | premium | 0.8% | — |
| 94 | SANFORD CLINIC | SIOUX FALLS | SD | DIAGNOSTIC RADIOLOGY | 276 | 122 | $4,026 | $33 | premium | 35.7% | (605) 328-8700 |
| 95 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 121 | $3,025 | $25 | premium | 1.8% | — |
| 96 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 120 | $6,469 | $54 | premium | 3.0% | (507) 284-2511 |
| 97 | X-RAY ASSOCIATES OF LOUISVILLE PSC | LOUISVILLE | KY | DIAGNOSTIC RADIOLOGY | 55 | 118 | $4,217 | $36 | premium | 6.5% | (502) 897-8121 |
| 98 | COOPER UNIVERSITY RADIOLOGY PC | CAMDEN | NJ | DIAGNOSTIC RADIOLOGY | 68 | 118 | $4,012 | $34 | premium | 2.7% | — |
| 99 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 74 | 117 | $4,095 | $35 | premium | 2.0% | (937) 558-3800 |
| 100 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 116 | $4,184 | $36 | premium | 4.5% | (405) 271-4311 |
Showing the top 100 of 659 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 →