7,409 observed fee-for-service (49%) · ~7,757 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 | 50360 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 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 348 | $4,210,200 | $12,098 | premium | 87.7% | (800) 603-0558 |
| 2 | THE EMORY CLINIC INC | ATLANTA | GA | NURSE PRACTITIONER | 3484 | 191 | $3,759,701 | $19,684 | premium | 54.0% | (404) 778-7525 |
| 3 | CEDARS-SINAI MEDICAL CENTER | WEST HOLLYWOOD | CA | NURSE PRACTITIONER | 802 | 177 | $1,284,005 | $7,254 | premium | 15.5% | (310) 423-3277 |
| 4 | METHODIST PHYSICIAN PRACTICES PLLC | SAN ANTONIO | TX | INTERVENTIONAL CARDIOLOGY | 169 | 162 | $1,111,254 | $6,860 | premium | 19.9% | (210) 575-8289 |
| 5 | VANDERBILT UNIVERSITY MEDICAL CENTER | NASHVILLE | TN | NURSE PRACTITIONER | 3394 | 162 | $1,534,756 | $9,474 | premium | 42.4% | (615) 322-5000 |
| 6 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 129 | $920,845 | $7,138 | premium | 44.5% | (732) 362-3663 |
| 7 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 127 | $1,117,863 | $8,802 | premium | 11.2% | (415) 600-1020 |
| 8 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 125 | $1,604,790 | $12,838 | premium | 54.8% | (314) 747-3000 |
| 9 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 119 | $1,081,444 | $9,088 | premium | 26.6% | — |
| 10 | CANYON SURGICAL ASSOCIATES, LLC | MURRAY | UT | GENERAL SURGERY | 5 | 116 | $738,085 | $6,363 | premium | 77.3% | (801) 507-9600 |
| 11 | THE MEDICAL COLLEGE OF WISCONSIN INC | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 2137 | 111 | $1,861,884 | $16,774 | premium | 30.1% | (414) 955-4263 |
| 12 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NJ | NURSE PRACTITIONER | 990 | 109 | $1,713,153 | $15,717 | premium | 37.6% | — |
| 13 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 109 | $1,012,712 | $9,291 | premium | 9.6% | (877) 827-7463 |
| 14 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 107 | $1,930,699 | $18,044 | premium | 29.0% | (608) 287-2050 |
| 15 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | UROLOGY | 48 | 101 | $1,640,992 | $16,247 | premium | 8.9% | (310) 794-8492 |
| 16 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 101 | $877,695 | $8,690 | premium | 100.0% | (205) 934-3460 |
| 17 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 100 | $1,596,455 | $15,965 | premium | 50.8% | (507) 284-2511 |
| 18 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 99 | $1,212,332 | $12,246 | premium | 18.8% | (212) 746-5454 |
| 19 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 97 | $914,309 | $9,426 | premium | 11.9% | (214) 633-5555 |
| 20 | TAMPA GENERAL MEDICAL GROUP INC | TAMPA | FL | PHYSICIAN ASSISTANT | 352 | 96 | $407,428 | $4,244 | premium | 20.6% | (813) 844-7585 |
| 21 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 84 | $693,720 | $8,259 | premium | 10.3% | — |
| 22 | UNIVERSITY SURGEONS OF ORANGE A MEDICAL GROUP | ORANGE | CA | GENERAL SURGERY | 120 | 82 | $811,800 | $9,900 | premium | 7.2% | (714) 634-5549 |
| 23 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 81 | $1,114,948 | $13,765 | premium | 42.6% | (734) 763-5459 |
| 24 | MCV ASSOCIATED PHYSICIANS | RICHMOND | VA | NURSE PRACTITIONER | 1791 | 77 | $851,004 | $11,052 | premium | 43.3% | (804) 828-9000 |
| 25 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 77 | $692,190 | $8,989 | premium | 23.9% | (206) 364-0500 |
| 26 | MEDICAL CITY TRANSPLANT, PLLC | DALLAS | TX | GENERAL SURGERY | 16 | 76 | $606,261 | $7,977 | premium | 9.3% | (469) 608-4980 |
| 27 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 72 | $1,435,214 | $19,934 | premium | 15.4% | (904) 953-2000 |
| 28 | PIEDMONT PROVIDERS LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 509 | 70 | $615,528 | $8,793 | premium | 19.8% | (404) 367-3210 |
| 29 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 70 | $391,580 | $5,594 | premium | 18.3% | (615) 269-4545 |
| 30 | UNIVERSITY OF TOLEDO PHYSICIANS LLC | TOLEDO | OH | PHYSICIAN ASSISTANT | 405 | 69 | $413,998 | $6,000 | premium | 24.3% | (419) 383-5550 |
| 31 | UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL | CHARLESTON | SC | PHYSICIAN ASSISTANT | 1692 | 69 | $1,271,700 | $18,430 | premium | 39.4% | (843) 792-1414 |
| 32 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS | CHICAGO | IL | NURSE PRACTITIONER | 1170 | 64 | $919,568 | $14,368 | premium | 14.3% | — |
| 33 | SOUTH BROWARD HOSPITAL DISTRICT | HOLLYWOOD | FL | NURSE PRACTITIONER | 665 | 60 | $488,108 | $8,135 | premium | 12.8% | (954) 265-7750 |
| 34 | UNIVERSITY MEDICAL CENTER OF SOUTHERN NEVADA | LAS VEGAS | NV | NURSE PRACTITIONER | 374 | 60 | $657,016 | $10,950 | premium | 100.0% | — |
| 35 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 59 | $895,946 | $15,186 | premium | 11.2% | (212) 305-8559 |
| 36 | SWEDISH HEALTH SERVICES | SEATTLE | WA | PHYSICIAN ASSISTANT | 1033 | 58 | $393,099 | $6,778 | premium | 18.0% | — |
| 37 | UNIVERSITY OF MARYLAND SURGICAL ASSOCIATES PA | BALTIMORE | MD | GENERAL SURGERY | 101 | 56 | $507,657 | $9,065 | premium | 22.3% | (410) 328-5191 |
| 38 | VIRGINIA MASON MEDICAL CENTER | SEATTLE | WA | PHYSICIAN ASSISTANT | 879 | 55 | $348,367 | $6,334 | premium | 17.1% | (206) 223-6600 |
| 39 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 55 | $540,596 | $9,829 | premium | 11.8% | (305) 689-5437 |
| 40 | UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT SAN ANTONIO | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 1326 | 55 | $1,457,000 | $26,491 | premium | 6.8% | (210) 450-7044 |
| 41 | FAIRVIEW EXPRESS CARE | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 2007 | 54 | $473,963 | $8,777 | premium | 27.4% | (612) 672-7422 |
| 42 | UNIVERSITY OF VIRGINIA PHYSICIANS GROUP | CHARLOTTESVILLE | VA | NURSE PRACTITIONER | 1704 | 53 | $390,003 | $7,359 | premium | 29.8% | (434) 924-5959 |
| 43 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 53 | $566,287 | $10,685 | premium | 11.8% | (708) 216-8372 |
| 44 | MEDHEALTH | DALLAS | TX | PHYSICIAN ASSISTANT | 430 | 52 | $323,622 | $6,224 | premium | 6.4% | (214) 599-8624 |
| 45 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 52 | $1,347,788 | $25,919 | premium | 9.9% | (212) 263-9700 |
| 46 | UNIVERSITY SURGICAL ASSOCIATES LLP | SYRACUSE | NY | GENERAL SURGERY | 50 | 50 | $251,941 | $5,039 | premium | 9.5% | — |
| 47 | UNMC PHYSICIANS | OMAHA | NE | PHYSICIAN ASSISTANT | 1514 | 50 | $711,858 | $14,237 | premium | 100.0% | (402) 559-4000 |
| 48 | OSU SURGERY, LLC | COLUMBUS | OH | PHYSICIAN ASSISTANT | 204 | 50 | $725,750 | $14,515 | premium | 17.6% | (614) 293-2101 |
| 49 | ALLEGHENY CLINIC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 2293 | 49 | $343,923 | $7,019 | premium | 10.7% | — |
| 50 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 48 | $517,814 | $10,788 | premium | 4.2% | (650) 723-4000 |
| 51 | UT METHODIST PHYSICIANS LLC | MEMPHIS | TN | NURSE PRACTITIONER | 125 | 48 | $332,030 | $6,917 | premium | 12.6% | — |
| 52 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NY | NURSE PRACTITIONER | 990 | 47 | $738,699 | $15,717 | premium | 8.9% | — |
| 53 | ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND | NEW ORLEANS | LA | INTERNAL MEDICINE | 412 | 45 | $224,270 | $4,984 | premium | 61.6% | — |
| 54 | JOHNS HOPKINS UNIVERSITY | BALTIMORE | MD | NURSE PRACTITIONER | 2900 | 44 | $275,326 | $6,257 | premium | 17.5% | (410) 502-4340 |
| 55 | ZUHDI TRANSPLANT PHYSICIANS | OKLAHOMA CITY | OK | NURSE PRACTITIONER | 51 | 44 | $525,200 | $11,936 | premium | 36.1% | (405) 947-5557 |
| 56 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 44 | $232,146 | $5,276 | premium | 3.9% | — |
| 57 | TEMPLE FACULTY PRACTICE PLAN INC | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 1330 | 43 | $351,622 | $8,177 | premium | 9.4% | — |
| 58 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 42 | $649,230 | $15,458 | premium | 21.2% | (919) 684-8111 |
| 59 | TEXAS HEALTH PHYSICIANS GROUP | FORT WORTH | TX | PHYSICIAN ASSISTANT | 1350 | 41 | $262,403 | $6,400 | premium | 5.0% | (817) 281-2977 |
| 60 | UCSF DEPT OF SURGERY | SAN FRANCISCO | CA | GENERAL SURGERY | 212 | 40 | $801,357 | $20,034 | premium | 3.5% | (415) 476-1000 |
| 61 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | OH | NURSE PRACTITIONER | 1504 | 40 | $286,800 | $7,170 | premium | 14.1% | (513) 584-1000 |
| 62 | PORTERCARE ADVENTIST HEALTH SYSTEM | DENVER | CO | PHYSICIAN ASSISTANT | 748 | 39 | $210,289 | $5,392 | premium | 51.3% | (303) 778-5797 |
| 63 | PROVIDENCE HEALTH AND SERVICES WASHINGTON | SPOKANE | WA | PHYSICIAN ASSISTANT | 771 | 39 | $166,201 | $4,262 | premium | 12.1% | — |
| 64 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NC | NURSE PRACTITIONER | 1878 | 36 | $145,149 | $4,032 | premium | 18.2% | (732) 362-3663 |
| 65 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 36 | $231,072 | $6,419 | premium | 15.8% | (508) 334-1000 |
| 66 | VIDANT MEDICAL GROUP LLC | KENANSVILLE | NC | PHYSICIAN ASSISTANT | 956 | 36 | $200,844 | $5,579 | premium | 18.2% | (910) 296-0941 |
| 67 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | CA | NURSE PRACTITIONER | 1815 | 34 | $191,928 | $5,645 | premium | 3.0% | (913) 588-1227 |
| 68 | SOUTH BROWARD HOSPITAL DISTRICT | HOLLYWOOD | DC | NURSE PRACTITIONER | 665 | 34 | $306,646 | $9,019 | premium | 25.0% | (954) 265-7750 |
| 69 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 34 | $286,815 | $8,436 | premium | 7.6% | (312) 563-2875 |
| 70 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 34 | $588,978 | $17,323 | premium | 12.0% | — |
| 71 | UNIVERSITY OF UTAH ADULT SERVICES | SALT LAKE CITY | UT | PHYSICIAN ASSISTANT | 1783 | 34 | $283,250 | $8,331 | premium | 22.7% | (801) 581-2121 |
| 72 | SENTARA MEDICAL GROUP | NORFOLK | VA | PHYSICIAN ASSISTANT | 1404 | 33 | $152,688 | $4,627 | premium | 18.5% | — |
| 73 | USC CARE MEDICAL GROUP INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 1374 | 33 | $267,300 | $8,100 | premium | 2.9% | (800) 872-2273 |
| 74 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | MO | NURSE PRACTITIONER | 1815 | 32 | $180,818 | $5,651 | premium | 14.0% | (913) 588-1227 |
| 75 | MCV ASSOCIATED PHYSICIANS | RICHMOND | PA | NURSE PRACTITIONER | 1791 | 32 | $353,664 | $11,052 | premium | 7.0% | (804) 828-9000 |
| 76 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 32 | $266,503 | $8,328 | premium | 2.8% | (800) 926-8273 |
| 77 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | MD | NURSE PRACTITIONER | 1912 | 32 | $477,016 | $14,907 | premium | 12.7% | (352) 265-8990 |
| 78 | CLEVELAND CLINIC FLORIDA | WESTON | IL | NURSE PRACTITIONER | 720 | 31 | $370,545 | $11,953 | premium | 6.9% | (954) 659-5000 |
| 79 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 31 | $226,396 | $7,303 | premium | 6.8% | — |
| 80 | VIRTUA MEDICAL GROUP, PA | VOORHEES | NJ | PHYSICIAN ASSISTANT | 1662 | 30 | $230,631 | $7,688 | premium | 10.3% | (856) 247-7260 |
| 81 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 30 | $933,906 | $31,130 | premium | 6.6% | (570) 271-6144 |
| 82 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 30 | $313,890 | $10,463 | premium | 100.0% | (501) 686-8000 |
| 83 | MONTEFIORE MEDICAL CENTER | BRONX | NY | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 2796 | 30 | $971,338 | $32,378 | premium | 5.7% | (866) 633-8255 |
| 84 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 30 | $228,007 | $7,600 | premium | 15.2% | (984) 215-5556 |
| 85 | SANFORD MEDICAL CENTER FARGO | FARGO | ND | NURSE PRACTITIONER | 1198 | 29 | $185,383 | $6,393 | premium | 65.9% | (701) 234-2000 |
| 86 | WAKE FOREST UNIVERSITY HEALTH SCIENCES | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 2609 | 29 | $244,264 | $8,423 | premium | 14.6% | (336) 713-9800 |
| 87 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS | CHICAGO | MD | NURSE PRACTITIONER | 1170 | 29 | $425,230 | $14,663 | premium | 11.6% | — |
| 88 | ST. JOHN PHYSICIANS, INC. | TULSA | OK | NURSE PRACTITIONER | 263 | 29 | $176,723 | $6,094 | premium | 23.8% | — |
| 89 | BEAUMONT MEDICAL GROUP- SPECIALTY SERVICES | ROYAL OAK | MI | PHYSICIAN ASSISTANT | 833 | 28 | $158,340 | $5,655 | premium | 14.7% | (248) 898-5058 |
| 90 | QUEENS UNIVERSITY MEDICAL GROUP | HONOLULU | HI | DIAGNOSTIC RADIOLOGY | 648 | 28 | $171,080 | $6,110 | premium | 100.0% | (808) 691-8200 |
| 91 | KIDNEY CARE AND TRANSPLANT SERVICES OF NEW ENGLAND PC | WEST SPRINGFIELD | MA | NEPHROLOGY | 13 | 28 | $123,207 | $4,400 | premium | 12.3% | (413) 733-0010 |
| 92 | YALE UNIVERSITY | NEW HAVEN | CA | PHYSICIAN ASSISTANT | 2649 | 26 | $366,538 | $14,098 | premium | 2.3% | (203) 688-4242 |
| 93 | EINSTEIN PRACTICE PLAN INC | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 740 | 26 | $163,800 | $6,300 | premium | 5.7% | (215) 456-8242 |
| 94 | ST VINCENT PHYSICIAN SERVICES HOSPITAL AND HEALTH CARE CENTER | INDIANAPOLIS | IN | INTERNAL MEDICINE | 285 | 25 | $193,175 | $7,727 | premium | 14.6% | (317) 338-7760 |
| 95 | BAYLOR COLLEGE OF MEDICINE | HOUSTON | TX | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1222 | 25 | $327,512 | $13,100 | premium | 3.1% | — |
| 96 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 25 | $319,553 | $12,782 | premium | 5.4% | (954) 659-5000 |
| 97 | RMC TRANSPLANT PHYSICIANS LLC | SPRINGFIELD | MO | GENERAL SURGERY | 5 | 25 | $198,618 | $7,945 | premium | 11.0% | (816) 822-8257 |
| 98 | HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC | BOSTON | MA | INTERNAL MEDICINE | 1689 | 24 | $192,000 | $8,000 | premium | 10.5% | (781) 983-9088 |
| 99 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 23 | $128,317 | $5,579 | premium | 63.9% | (859) 257-1412 |
| 100 | LEGACY GOOD SAMARITAN HOSPITAL AND MEDICAL CENTER | PORTLAND | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 194 | 23 | $461,001 | $20,044 | premium | 2.0% | (503) 413-7022 |
Showing the top 100 of 145 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 →