606,598 observed fee-for-service (49%) · ~629,237 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 | 77427 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 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 19,796 | $20,811,594 | $1,051 | premium | 32.4% | — |
| 2 | ADVOCATE RADIATION ONCOLOGY LLC | PORT CHARLOTTE | FL | RADIATION ONCOLOGY | 21 | 8,182 | $4,122,604 | $504 | premium | 9.5% | (941) 883-2199 |
| 3 | GENESISCARE USA OF FLORIDA LLC | CAPE CORAL | FL | UROLOGY | 175 | 8,030 | $5,560,517 | $692 | premium | 9.3% | — |
| 4 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 7,970 | $11,972,268 | $1,502 | premium | 13.1% | (713) 592-5433 |
| 5 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 7,431 | $8,438,591 | $1,136 | premium | 9.8% | (626) 256-4673 |
| 6 | ARIZONA CENTER FOR HEMATOLOGY AND ONCOLOGY PLC | PHOENIX | AZ | UROLOGY | 61 | 3,797 | $1,435,266 | $378 | premium | 16.6% | (480) 278-8300 |
| 7 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 3,716 | $4,193,584 | $1,129 | premium | 34.0% | (507) 284-2511 |
| 8 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 3,713 | $3,103,347 | $836 | premium | 4.9% | (415) 600-1020 |
| 9 | INTEGRATED MEDICAL PROFESSIONALS PLLC | SEAFORD | NY | UROLOGY | 98 | 3,608 | $2,498,323 | $692 | premium | 8.8% | (516) 520-8080 |
| 10 | IRONWOOD PHYSICIANS PC | MESA | AZ | HEMATOLOGY/ONCOLOGY | 114 | 3,497 | $1,155,966 | $331 | premium | 15.3% | (480) 981-1326 |
| 11 | FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | FORT MYERS | FL | HEMATOLOGY/ONCOLOGY | 437 | 3,490 | $1,720,570 | $493 | premium | 4.0% | (239) 561-9622 |
| 12 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 3,396 | $3,473,768 | $1,023 | premium | 4.5% | (858) 455-9100 |
| 13 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 3,329 | $3,039,505 | $913 | premium | 4.4% | (916) 681-8852 |
| 14 | TENNESSEE ONCOLOGY PLLC | NASHVILLE | TN | HEMATOLOGY/ONCOLOGY | 360 | 3,272 | $1,037,793 | $317 | premium | 13.0% | (615) 385-3751 |
| 15 | RADIATION ONCOLOGY ASSOCIATES, PA | MANCHESTER | NH | RADIATION ONCOLOGY | 23 | 3,252 | $2,495,241 | $767 | premium | 60.7% | (603) 663-1800 |
| 16 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 3,145 | $3,931,880 | $1,250 | premium | 7.6% | — |
| 17 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 3,066 | $1,962,155 | $640 | premium | 7.8% | (215) 662-2777 |
| 18 | NORTH ATLANTA PROFESSIONAL SERVICES LLC | ATLANTA | GA | INTERNAL MEDICINE | 427 | 3,021 | $1,783,576 | $590 | premium | 13.8% | (404) 851-8000 |
| 19 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 2,934 | $1,929,796 | $658 | premium | 3.4% | (813) 745-4673 |
| 20 | RADIATION ONCOLOGY CONSULTANTS, LTD | BARRINGTON | IL | RADIATION ONCOLOGY | 18 | 2,922 | $3,509,322 | $1,201 | premium | 8.8% | (847) 842-0300 |
| 21 | NORMAN H. ANDERSON, MD, PA | OCALA | FL | RADIATION ONCOLOGY | 10 | 2,910 | $1,224,016 | $421 | premium | 3.4% | (352) 732-0277 |
| 22 | MINNEAPOLIS RADIATION ONCOLOGY PA | NEW RICHMOND | MN | RADIATION ONCOLOGY | 18 | 2,891 | $2,495,047 | $863 | premium | 26.4% | (715) 243-2950 |
| 23 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 2,823 | $3,472,565 | $1,230 | premium | 12.4% | (800) 603-0558 |
| 24 | CARTI ONCOLOGY SOLUTIONS LLC | LITTLE ROCK | AR | RADIATION ONCOLOGY | 13 | 2,755 | $2,002,885 | $727 | premium | 32.4% | 50190630003044 |
| 25 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 2,732 | $2,927,593 | $1,072 | premium | 3.6% | (650) 723-4000 |
| 26 | UROPARTNERS LLC | WESTCHESTER | IL | UROLOGY | 130 | 2,692 | $1,615,200 | $600 | premium | 8.1% | (708) 486-0076 |
| 27 | RADIATION ONCOLOGY ASSOCIATES PC | FAIRFAX | VA | RADIATION ONCOLOGY | 23 | 2,692 | $1,534,440 | $570 | premium | 12.2% | (571) 472-0606 |
| 28 | REGIONAL CANCER CARE ASSOCIATES LLC | HACKENSACK | NJ | HEMATOLOGY/ONCOLOGY | 153 | 2,642 | $2,737,112 | $1,036 | premium | 9.6% | (201) 996-2210 |
| 29 | COASTAL CANCER CENTER LLC | MYRTLE BEACH | SC | RADIATION ONCOLOGY | 22 | 2,638 | $1,570,324 | $595 | premium | 16.6% | (843) 449-9415 |
| 30 | ALLENTOWN RADIATION ONCOLOGY ASSOCIATES PC | ALLENTOWN | PA | RADIATION ONCOLOGY | 10 | 2,631 | $2,459,064 | $935 | premium | 6.7% | (610) 402-0709 |
| 31 | AQUA DERMATOLOGY OF FLORIDA, PA | NAPLES | FL | PHYSICIAN ASSISTANT | 184 | 2,565 | $1,033,695 | $403 | premium | 3.0% | (239) 596-9075 |
| 32 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 2,460 | $3,327,734 | $1,353 | premium | 7.4% | — |
| 33 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 2,450 | $1,903,782 | $777 | premium | 13.5% | (206) 364-0500 |
| 34 | SOUTHEAST RADIATION ONCOLOGY GROUP, P.A. | CHARLOTTE | NC | RADIATION ONCOLOGY | 53 | 2,445 | $1,360,525 | $556 | premium | 9.0% | (704) 333-7376 |
| 35 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 2,433 | $4,196,925 | $1,725 | premium | 32.6% | (203) 688-4242 |
| 36 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 2,381 | $1,488,841 | $625 | premium | 8.7% | (908) 273-4300 |
| 37 | CANCER CARE GROUP PC | INDIANAPOLIS | IN | RADIATION ONCOLOGY | 21 | 2,318 | $1,846,132 | $796 | premium | 12.4% | (317) 715-1800 |
| 38 | COASTAL RADIATION ONCOLOGY MEDICAL GROUP, INC. | SALINAS | CA | RADIATION ONCOLOGY | 11 | 2,309 | $1,007,288 | $436 | premium | 3.0% | (831) 758-2724 |
| 39 | UNIVERSITY OF VIRGINIA PHYSICIANS GROUP | CHARLOTTESVILLE | VA | NURSE PRACTITIONER | 1704 | 2,229 | $1,652,772 | $741 | premium | 10.1% | (434) 924-5959 |
| 40 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 2,167 | $2,927,772 | $1,351 | premium | 5.3% | (212) 263-9700 |
| 41 | UROLOGY CLINICS OF NORTH TEXAS, PLLC | DALLAS | TX | UROLOGY | 72 | 2,153 | $803,069 | $373 | premium | 3.5% | (214) 691-9377 |
| 42 | COASTAL CAROLINA RADIATION ONCOLOGY PLLC | WILMINGTON | NC | PHYSICIAN ASSISTANT | 11 | 2,146 | $2,288,220 | $1,066 | premium | 7.9% | (910) 662-8440 |
| 43 | RADIATION ONCOLOGY ASSOCIATES LTD | MILWAUKEE | WI | RADIATION ONCOLOGY | 23 | 2,070 | $2,198,340 | $1,062 | premium | 14.9% | (414) 649-6420 |
| 44 | PRACTICE ASSOCIATES MEDICAL GROUP | MORRISTOWN | NJ | NURSE PRACTITIONER | 1404 | 2,059 | $1,276,580 | $620 | premium | 7.5% | (973) 971-5596 |
| 45 | KANSAS CITY UROLOGY CARE PA | OVERLAND PARK | KS | UROLOGY | 73 | 2,036 | $1,111,656 | $546 | premium | 18.2% | (913) 341-7985 |
| 46 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 2,028 | $953,160 | $470 | premium | 4.9% | (631) 751-3000 |
| 47 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 2,022 | $2,038,478 | $1,008 | premium | 22.2% | (319) 678-8201 |
| 48 | RADIATION ONCOLOGY ASSOCIATES, PA | MANCHESTER | MA | RADIATION ONCOLOGY | 23 | 2,010 | $1,597,758 | $795 | premium | 8.1% | (603) 663-1800 |
| 49 | ONCOLOGY AND HEMATOLOGY ASSOCIATES OF SOUTHWEST VIRGINIA INC | ROANOKE | VA | NURSE PRACTITIONER | 52 | 1,986 | $2,057,496 | $1,036 | premium | 9.0% | (540) 982-0237 |
| 50 | WELLSTAR MEDICAL GROUP LLC | MARIETTA | GA | NURSE PRACTITIONER | 3060 | 1,973 | $1,274,511 | $646 | premium | 9.0% | (770) 422-2004 |
| 51 | ONCOLOGY CONSULTANTS PC | JACKSON | TN | RADIATION ONCOLOGY | 4 | 1,955 | $484,156 | $248 | premium | 7.8% | (731) 541-6250 |
| 52 | UNIVERSITY PHYSICIANS INCORPORATED | AURORA | CO | PHYSICIAN ASSISTANT | 3122 | 1,919 | $1,460,140 | $761 | premium | 15.7% | (720) 777-1234 |
| 53 | FLORIDA HOSPITAL MEDICAL GROUP INC | ORLANDO | FL | DIAGNOSTIC RADIOLOGY | 321 | 1,904 | $1,115,080 | $586 | premium | 2.2% | (407) 303-5600 |
| 54 | JEFFERSON UNIVERSITY PHYSICIANS | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 1570 | 1,832 | $1,478,108 | $807 | premium | 4.7% | — |
| 55 | BOCACARE INC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 199 | 1,824 | $1,409,012 | $772 | premium | 2.1% | (561) 955-7100 |
| 56 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 1,823 | $3,656,364 | $2,006 | premium | 13.1% | (608) 287-2050 |
| 57 | ORLANDO HEALTH MEDICAL GROUP INC | ORLANDO | FL | PHYSICIAN ASSISTANT | 2145 | 1,819 | $1,048,374 | $576 | premium | 2.1% | (407) 896-1100 |
| 58 | OSU RADIATION ONCOLOGY LLC | COLUMBUS | OH | RADIATION ONCOLOGY | 47 | 1,798 | $1,239,486 | $689 | premium | 6.6% | (614) 293-8415 |
| 59 | ADVANCED UROLOGY INSTITUTE LLC | INVERNESS | FL | UROLOGY | 147 | 1,781 | $670,525 | $376 | premium | 2.1% | (352) 726-9707 |
| 60 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 1,774 | $2,383,473 | $1,344 | premium | 6.5% | — |
| 61 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 1,770 | $2,113,380 | $1,194 | premium | 2.1% | (904) 953-2000 |
| 62 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 1,751 | $909,539 | $519 | premium | 4.5% | — |
| 63 | VIRGINIA ONCOLOGY ASSOCIATES | NORFOLK | VA | PHYSICIAN ASSISTANT | 123 | 1,746 | $1,808,856 | $1,036 | premium | 7.9% | — |
| 64 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 1,724 | $1,311,964 | $761 | premium | 10.9% | — |
| 65 | ARIZONA UROLOGY SPECIALISTS PLLC | MESA | AZ | UROLOGY | 81 | 1,723 | $820,435 | $476 | premium | 7.5% | (602) 222-1900 |
| 66 | ST LUKES CLINIC-TREASURE VALLEY LLC | BOISE | ID | PHYSICIAN ASSISTANT | 1159 | 1,719 | $840,885 | $489 | premium | 33.7% | (208) 381-4210 |
| 67 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NJ | NURSE PRACTITIONER | 990 | 1,696 | $2,005,676 | $1,183 | premium | 6.2% | — |
| 68 | THE CENTERS FOR ADVANCED UROLOGY LLP | KING OF PRUSSIA | PA | UROLOGY | 145 | 1,696 | $770,508 | $454 | premium | 4.3% | (610) 579-3577 |
| 69 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 1,687 | $1,354,661 | $803 | premium | 2.8% | (254) 724-2663 |
| 70 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 1,685 | $1,281,774 | $761 | premium | 2.0% | (305) 689-5437 |
| 71 | TEMPLE FACULTY PRACTICE PLAN INC | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 1330 | 1,673 | $1,003,800 | $600 | premium | 4.3% | — |
| 72 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 1,663 | $1,023,635 | $616 | premium | 6.6% | (901) 683-0055 |
| 73 | DAYTON PHYSICIANS LLC | CENTERVILLE | OH | NURSE PRACTITIONER | 40 | 1,616 | $1,221,696 | $756 | premium | 5.9% | (937) 293-1622 |
| 74 | RADIATION MEDICINE INSTITUTE | EVANSTON | IL | RADIATION ONCOLOGY | 4 | 1,605 | $1,187,700 | $740 | premium | 4.8% | (847) 570-2590 |
| 75 | HIGHLANDS ONCOLOGY GROUP PA | FAYETTEVILLE | AR | NURSE PRACTITIONER | 79 | 1,602 | $805,670 | $503 | premium | 18.8% | (479) 361-2585 |
| 76 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 1,602 | $1,052,010 | $657 | premium | 4.1% | (570) 271-6144 |
| 77 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 1,593 | $1,144,153 | $718 | premium | 10.3% | (314) 941-5600 |
| 78 | UNIVERSITY OF PITTSBURGH CANCER INSTITUTE CANCER SERVICES | PITTSBURGH | PA | RADIATION ONCOLOGY | 57 | 1,560 | $1,032,773 | $662 | premium | 4.0% | (412) 623-6720 |
| 79 | POUDRE VALLEY MEDICAL GROUP LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 2390 | 1,558 | $655,918 | $421 | premium | 12.8% | — |
| 80 | ACKERMAN CANCER CENTER PA | JACKSONVILLE | FL | RADIATION ONCOLOGY | 10 | 1,553 | $1,160,171 | $747 | premium | 1.8% | (904) 260-3022 |
| 81 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 1,535 | $967,050 | $630 | premium | 2.0% | (714) 871-3006 |
| 82 | BEAUMONT MEDICAL GROUP- SPECIALTY SERVICES | ROYAL OAK | MI | PHYSICIAN ASSISTANT | 833 | 1,525 | $683,845 | $448 | premium | 7.1% | (248) 898-5058 |
| 83 | ALLEGHENY CLINIC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 2293 | 1,516 | $942,916 | $622 | premium | 3.9% | — |
| 84 | MAIN LINE RADIATION ONCOLOGY PC | WYNEWOOD | PA | RADIATION ONCOLOGY | 5 | 1,506 | $898,831 | $597 | premium | 3.8% | (484) 476-2433 |
| 85 | BAPTIST HEALTH MEDICAL GROUP ONCOLOGY LLC | MIAMI | FL | NURSE PRACTITIONER | 200 | 1,498 | $994,558 | $664 | premium | 1.7% | (786) 596-2000 |
| 86 | HAMPTON ROADS PROTON BEAM THERAPY | HAMPTON | VA | RADIATION ONCOLOGY | 3 | 1,497 | $1,140,714 | $762 | premium | 6.8% | (757) 251-6815 |
| 87 | CANCER SPECIALISTS LLC | JACKSONVILLE | FL | HEMATOLOGY/ONCOLOGY | 46 | 1,489 | $601,996 | $404 | premium | 1.7% | (904) 516-3737 |
| 88 | UNIVERSITY OF CHICAGO | CHICAGO | IL | NURSE PRACTITIONER | 1662 | 1,488 | $2,090,581 | $1,405 | premium | 4.5% | (888) 824-0200 |
| 89 | CANCER CARE CENTERS OF BREVARD INC | MELBOURNE | FL | NURSE PRACTITIONER | 17 | 1,483 | $1,536,388 | $1,036 | premium | 1.7% | (321) 434-9000 |
| 90 | VIDANT RADIATION ONCOLOGY LLC | GREENVILLE | NC | RADIATION ONCOLOGY | 9 | 1,476 | $808,708 | $548 | premium | 5.4% | (252) 551-6300 |
| 91 | NEWPORT COAST RADIATION ONCOLOGY MEDICAL GROUP INC | NEWPORT BEACH | CA | RADIATION ONCOLOGY | 5 | 1,470 | $1,183,350 | $805 | premium | 1.9% | (949) 764-5528 |
| 92 | BAPTIST MD ANDERSON CANCER PHYSICIANS INC | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 118 | 1,446 | $684,376 | $473 | premium | 1.7% | (904) 202-7300 |
| 93 | UROLOGY AUSTIN PLLC | AUSTIN | TX | PHYSICIAN ASSISTANT | 57 | 1,444 | $624,631 | $433 | premium | 2.4% | (512) 788-9688 |
| 94 | SOUTH CAROLINA ONCOLOGY ASSOC PA | COLUMBIA | SC | HEMATOLOGY/ONCOLOGY | 18 | 1,438 | $898,750 | $625 | premium | 9.1% | (803) 461-3000 |
| 95 | FLORIDA PHYSICIAN SPECIALISTS LLC | JACKSONVILLE | FL | UROLOGY | 36 | 1,425 | $853,575 | $599 | premium | 1.7% | (904) 483-2310 |
| 96 | PARAGON CHICO MEDICAL GROUP INC | CHICO | CA | RADIATION ONCOLOGY | 10 | 1,407 | $551,094 | $392 | premium | 1.9% | (530) 691-5920 |
| 97 | SANSUM CLINIC | SANTA BARBARA | CA | INTERNAL MEDICINE | 322 | 1,379 | $679,847 | $493 | premium | 1.8% | (805) 681-7500 |
| 98 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 1,370 | $1,072,261 | $783 | premium | 5.0% | (919) 684-8111 |
| 99 | NORTHEAST GEORGIA PHYSICIANS GROUP INC | GAINESVILLE | GA | PHYSICIAN ASSISTANT | 901 | 1,357 | $702,665 | $518 | premium | 6.2% | (770) 219-7777 |
| 100 | RADIATION ONCOLOGY PC | CAMDEN | NJ | RADIATION ONCOLOGY | 14 | 1,353 | $732,897 | $542 | premium | 4.9% | (856) 342-2300 |
Showing the top 100 of 833 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 →