3,838,229 observed fee-for-service (49%) · ~3,993,162 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; 4 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 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 | 96372 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 | FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | FORT MYERS | FL | HEMATOLOGY/ONCOLOGY | 437 | 138,152 | $9,530,005 | $69 | premium | 22.8% | (239) 561-9622 |
| 2 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 41,362 | $3,961,569 | $96 | premium | 7.9% | — |
| 3 | INNOVATIVE INFUSIONS LLC | AUSTIN | TX | NURSE PRACTITIONER | 106 | 23,986 | $1,192,583 | $50 | premium | 4.6% | (512) 261-4800 |
| 4 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 22,551 | $3,866,884 | $171 | premium | 9.5% | (631) 751-3000 |
| 5 | NEUROPATHY TREATMENT CLINIC OF OKLAHOMA LLC | TULSA | OK | NURSE PRACTITIONER | 4 | 21,265 | $1,169,575 | $55 | premium | 14.6% | (918) 708-1816 |
| 6 | HATTIESBURG CLINIC PA | HATTIESBURG | MS | FAMILY PRACTICE | 530 | 17,469 | $1,063,520 | $61 | premium | 8.6% | (601) 264-6000 |
| 7 | CALIFORNIA CANCER ASSOCIATES FOR RESEARCH AND EXCELLENCE INC | FRESNO | CA | HEMATOLOGY/ONCOLOGY | 62 | 15,868 | $634,680 | $40 | premium | 2.5% | (559) 326-1222 |
| 8 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | INTERNAL MEDICINE | 1424 | 15,853 | $2,038,834 | $129 | premium | 2.5% | (310) 825-7922 |
| 9 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | MD | HEMATOLOGY/ONCOLOGY | 99 | 14,577 | $1,346,158 | $92 | premium | 13.0% | (301) 982-9800 |
| 10 | TENNESSEE ONCOLOGY PLLC | NASHVILLE | TN | HEMATOLOGY/ONCOLOGY | 360 | 14,039 | $600,974 | $43 | premium | 4.8% | (615) 385-3751 |
| 11 | SUMMIT MEDICAL GROUP, PLLC | KNOXVILLE | TN | FAMILY PRACTICE | 622 | 14,020 | $797,689 | $57 | premium | 4.8% | (865) 938-3627 |
| 12 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 13,745 | $476,525 | $35 | premium | 2.3% | (941) 255-3535 |
| 13 | REGIONAL CANCER CARE ASSOCIATES LLC | HACKENSACK | NJ | HEMATOLOGY/ONCOLOGY | 153 | 12,430 | $1,135,178 | $91 | premium | 8.4% | (201) 996-2210 |
| 14 | OKLAHOMA ARTHRITIS CENTER, P.C. | EDMOND | OK | PHYSICIAN ASSISTANT | 45 | 12,355 | $650,386 | $53 | premium | 8.5% | — |
| 15 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 12,061 | $1,008,404 | $84 | premium | 1.9% | (916) 681-8852 |
| 16 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 11,977 | $1,306,040 | $109 | premium | 1.9% | (415) 600-1020 |
| 17 | VIRGINIA ONCOLOGY ASSOCIATES | NORFOLK | VA | PHYSICIAN ASSISTANT | 123 | 11,697 | $1,089,171 | $93 | premium | 7.7% | — |
| 18 | PALMETTO INFUSION SERVICES LLC | CHARLOTTE | SC | NURSE PRACTITIONER | 59 | 11,239 | $568,282 | $51 | premium | 7.2% | (704) 200-9482 |
| 19 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 11,222 | $562,350 | $50 | premium | 1.8% | (858) 455-9100 |
| 20 | CANCER CENTER OF KANSAS PA | WICHITA | KS | HEMATOLOGY/ONCOLOGY | 27 | 10,730 | $997,890 | $93 | premium | 17.3% | (316) 262-4467 |
| 21 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 10,523 | $651,906 | $62 | premium | 8.5% | — |
| 22 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 10,472 | $3,502,309 | $334 | premium | 4.4% | (212) 263-9700 |
| 23 | ALLISON CURTIS KINGSLEY MEOZ MICHAEL AND SANCHEZ PC | LAS VEGAS | NV | NURSE PRACTITIONER | 71 | 10,335 | $956,455 | $93 | premium | 22.0% | (702) 952-2140 |
| 24 | ONCOLOGY SPECIALTIES, P.C. | HUNTSVILLE | AL | NURSE PRACTITIONER | 93 | 10,118 | $1,007,103 | $100 | premium | 3.6% | (256) 705-4224 |
| 25 | NORTH MISSISSIPPI MEDICAL CLINICS INC | TUPELO | MS | FAMILY PRACTICE | 121 | 9,923 | $349,658 | $35 | premium | 4.9% | (662) 377-5300 |
| 26 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 9,588 | $483,587 | $50 | premium | 1.5% | — |
| 27 | TENNESSEE CANCER SPECIALISTS PLLC | KNOXVILLE | TN | NURSE PRACTITIONER | 65 | 9,131 | $752,702 | $82 | premium | 3.1% | (865) 934-5800 |
| 28 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 9,081 | $647,026 | $71 | premium | 6.1% | (908) 273-4300 |
| 29 | TITAN HEALTH PARTNERS LLC | EAST BRUNSWICK | NJ | HEMATOLOGY/ONCOLOGY | 92 | 8,982 | $436,437 | $49 | premium | 6.0% | (732) 390-7750 |
| 30 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 8,870 | $401,746 | $45 | premium | 3.7% | (914) 241-1050 |
| 31 | ALLIANCE CANCER SPECIALISTS P.C. | LANGHORNE | PA | HEMATOLOGY/ONCOLOGY | 44 | 8,866 | $824,538 | $93 | premium | 6.3% | (215) 750-5050 |
| 32 | BRYN MAWR MEDICAL SPECIALISTS ASSOCIATION | BRYN MAWR | PA | NURSE PRACTITIONER | 134 | 8,808 | $440,595 | $50 | premium | 6.2% | (610) 527-3800 |
| 33 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 8,787 | $716,394 | $82 | premium | 1.4% | (626) 256-4673 |
| 34 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 8,783 | $1,004,653 | $114 | premium | 3.7% | — |
| 35 | FIRST STEP REGENERATIVE CLINIC | SANTA BARBARA | VA | NURSE PRACTITIONER | 2 | 8,016 | $440,880 | $55 | premium | 5.3% | (805) 450-2891 |
| 36 | HEALTH FIRST MEDICAL GROUP, LLC | MELBOURNE | FL | NURSE PRACTITIONER | 669 | 7,865 | $329,112 | $42 | premium | 1.3% | (321) 434-8878 |
| 37 | GRAVES GILBERT CLINIC PLLC | BOWLING GREEN | KY | NURSE PRACTITIONER | 221 | 7,762 | $391,333 | $50 | premium | 8.7% | (270) 781-4043 |
| 38 | MICHIGAN HEALTHCARE PROFESSIONALS PC | FARMINGTON HILLS | MI | INTERNAL MEDICINE | 518 | 7,677 | $320,762 | $42 | premium | 5.7% | (248) 477-0552 |
| 39 | UROLOGY CENTER OF COLUMBUS, LLC | COLUMBUS | GA | NURSE PRACTITIONER | 2 | 7,674 | $306,960 | $40 | premium | 2.9% | (706) 324-7700 |
| 40 | ONCOLOGY-HEMATOLOGY ASSOCIATES OF CENTRAL ILLINOIS P C | PEORIA | IL | NURSE PRACTITIONER | 62 | 7,619 | $855,763 | $112 | premium | 5.1% | (309) 243-3000 |
| 41 | WATSON CLINIC LLP | LAKELAND | FL | NURSE PRACTITIONER | 363 | 7,564 | $378,200 | $50 | premium | 1.2% | (863) 680-7780 |
| 42 | IRONWOOD PHYSICIANS PC | MESA | AZ | HEMATOLOGY/ONCOLOGY | 114 | 7,531 | $587,418 | $78 | premium | 5.2% | (480) 981-1326 |
| 43 | SANSUM CLINIC | SANTA BARBARA | CA | INTERNAL MEDICINE | 322 | 7,463 | $505,896 | $68 | premium | 1.2% | (805) 681-7500 |
| 44 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 7,346 | $580,013 | $79 | premium | 1.1% | (310) 423-0674 |
| 45 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 7,212 | $448,801 | $62 | premium | 4.6% | (803) 744-4900 |
| 46 | ILLINOIS CANCER SPECIALISTS | ARLINGTON HEIGHTS | IL | HEMATOLOGY/ONCOLOGY | 29 | 7,171 | $666,903 | $93 | premium | 4.8% | (847) 259-4482 |
| 47 | PRIVIA MEDICAL GROUP OF GEORGIA LLC | FAYETTEVILLE | GA | NURSE PRACTITIONER | 453 | 6,989 | $523,213 | $75 | premium | 2.6% | — |
| 48 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 6,922 | $600,816 | $87 | premium | 4.6% | — |
| 49 | HIGHLANDS ONCOLOGY GROUP PA | FAYETTEVILLE | AR | NURSE PRACTITIONER | 79 | 6,764 | $379,520 | $56 | premium | 5.4% | (479) 361-2585 |
| 50 | VIRGINIA CANCER INSTITUTE INCORPORATED | NORTH CHESTERFIELD | VA | HEMATOLOGY/ONCOLOGY | 50 | 6,529 | $359,050 | $55 | premium | 4.3% | (804) 330-7990 |
| 51 | ROCKY MOUNTAIN CANCER CENTERS LLP | COLORADO SPRINGS | CO | NURSE PRACTITIONER | 129 | 6,333 | $588,969 | $93 | premium | 14.9% | (719) 577-2555 |
| 52 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | AR | HEMATOLOGY/ONCOLOGY | 333 | 6,281 | $409,403 | $65 | premium | 5.1% | (260) 484-8830 |
| 53 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 6,225 | $299,714 | $48 | premium | 1.0% | (714) 871-3006 |
| 54 | CANCER SPECIALISTS LLC | JACKSONVILLE | FL | HEMATOLOGY/ONCOLOGY | 46 | 6,222 | $249,998 | $40 | premium | 1.0% | (904) 516-3737 |
| 55 | MCFARLAND CLINIC PC | AMES | IA | PHYSICIAN ASSISTANT | 352 | 6,201 | $301,791 | $49 | premium | 18.0% | (515) 239-4400 |
| 56 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 6,184 | $473,057 | $76 | premium | 3.2% | (704) 667-1000 |
| 57 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 6,172 | $517,001 | $84 | premium | 1.0% | (916) 983-7476 |
| 58 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 6,049 | $375,240 | $62 | premium | 4.1% | (630) 469-9200 |
| 59 | LOS ANGELES HEMATOLOGY-ONCOLOGY MEDICAL GROUP | LOS ANGELES | CA | HEMATOLOGY/ONCOLOGY | 51 | 6,039 | $277,352 | $46 | premium | 0.9% | (213) 977-1214 |
| 60 | BARKLEY HEALTHCARE GROUP LLC | FORT MYERS | FL | NURSE PRACTITIONER | 2 | 5,978 | $226,035 | $38 | premium | 1.0% | (239) 565-0004 |
| 61 | WELLSTAR MEDICAL GROUP LLC | MARIETTA | GA | NURSE PRACTITIONER | 3060 | 5,932 | $447,365 | $75 | premium | 2.2% | (770) 422-2004 |
| 62 | JACKSON CLINIC PA | JACKSON | TN | NURSE PRACTITIONER | 183 | 5,924 | $396,908 | $67 | premium | 2.0% | (731) 422-0213 |
| 63 | SOUTH CAROLINA ONCOLOGY ASSOC PA | COLUMBIA | SC | HEMATOLOGY/ONCOLOGY | 18 | 5,911 | $384,215 | $65 | premium | 3.8% | (803) 461-3000 |
| 64 | SLOCUM DICKSON MEDICAL GROUP PLLC | NEW HARTFORD | NY | PHYSICIAN ASSISTANT | 93 | 5,780 | $231,200 | $40 | premium | 2.4% | (315) 798-1500 |
| 65 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 5,776 | $346,404 | $60 | premium | 3.7% | — |
| 66 | EPIC CARE | PLEASANT HILL | CA | HEMATOLOGY/ONCOLOGY | 54 | 5,711 | $531,123 | $93 | premium | 0.9% | (925) 687-2570 |
| 67 | CENTRAL DUPAGE PHYSICIAN GROUP | WHEATON | IL | PHYSICIAN ASSISTANT | 1097 | 5,697 | $394,894 | $69 | premium | 3.8% | (630) 933-4800 |
| 68 | CONSOLIDATED MEDICAL PRACTICES OF MEMPHIS,PLLC | MEMPHIS | TN | NURSE PRACTITIONER | 114 | 5,666 | $216,914 | $38 | premium | 1.9% | (901) 261-0700 |
| 69 | CANCER CARE SPECIALISTS OF CENTRAL ILLINOIS SC | DECATUR | IL | HEMATOLOGY/ONCOLOGY | 30 | 5,650 | $310,698 | $55 | premium | 3.8% | (217) 876-4700 |
| 70 | IMPERIAL VALLEY FAMILY CARE MEDICAL GROUP A P C | EL CENTRO | CA | FAMILY PRACTICE | 23 | 5,590 | $250,219 | $45 | premium | 0.9% | (760) 353-6363 |
| 71 | IVX HEALTH OF FLORIDA PA | JACKSONVILLE | FL | NURSE PRACTITIONER | 40 | 5,456 | $286,440 | $52 | premium | 0.9% | (904) 339-7332 |
| 72 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 5,404 | $479,411 | $89 | premium | 3.7% | (800) 603-0558 |
| 73 | PULMONARY ASSOCIATES OF RICHMOND INC | MIDLOTHIAN | VA | PULMONARY DISEASE | 49 | 5,381 | $338,688 | $63 | premium | 3.6% | (804) 639-9910 |
| 74 | INFUSION EXPRESS OF TENNESSEE PC | BRENTWOOD | TN | NURSE PRACTITIONER | 42 | 5,345 | $264,643 | $50 | premium | 1.8% | (615) 510-6002 |
| 75 | AMERICAN FAMILY CARE, LLC | HUNTSVILLE | AL | NURSE PRACTITIONER | 188 | 5,310 | $161,627 | $30 | premium | 1.9% | (256) 882-9711 |
| 76 | BAPTIST PRIMARY CARE INC | JACKSONVILLE | FL | FAMILY PRACTICE | 446 | 5,187 | $182,559 | $35 | premium | 0.9% | — |
| 77 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | MD | HEMATOLOGY/ONCOLOGY | 333 | 5,141 | $306,758 | $60 | premium | 4.6% | (260) 484-8830 |
| 78 | KANSAS CITY PHYSICIAN PARTNERS INC | KANSAS CITY | MO | RHEUMATOLOGY | 16 | 5,132 | $722,022 | $141 | premium | 8.3% | (913) 258-2116 |
| 79 | INFECTIOUS DISEASE ASSOCIATES OF CENTRAL VIRGINIA LLC | LYNCHBURG | VA | INFECTIOUS DISEASE | 6 | 5,121 | $204,840 | $40 | premium | 3.4% | (434) 947-3900 |
| 80 | PRIVIA MEDICAL GROUP, LLC | ARLINGTON | VA | NURSE PRACTITIONER | 1477 | 5,080 | $275,862 | $54 | premium | 3.4% | — |
| 81 | SOUTH CAROLINA DEPT OF MENTAL HEALTH ACCOUNTING OFFICE | COLUMBIA | SC | PSYCHIATRY | 237 | 5,076 | $126,963 | $25 | premium | 3.2% | (803) 898-8579 |
| 82 | COASTAL CANCER CENTER LLC | MYRTLE BEACH | SC | RADIATION ONCOLOGY | 22 | 5,016 | $641,920 | $128 | premium | 3.2% | (843) 449-9415 |
| 83 | WELLSTREET OF GEORGIA PC | ATLANTA | GA | NURSE PRACTITIONER | 429 | 5,000 | $299,975 | $60 | premium | 1.9% | (404) 382-9941 |
| 84 | DESERT HEMATOLOGY-ONCOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | HEMATOLOGY/ONCOLOGY | 10 | 4,988 | $185,158 | $37 | premium | 0.8% | (760) 568-3613 |
| 85 | JACKSON ONCOLOGY ASSOCIATES | JACKSON | MS | HEMATOLOGY/ONCOLOGY | 11 | 4,890 | $283,620 | $58 | premium | 2.4% | (601) 974-5600 |
| 86 | REVERE HEALTH PC | PROVO | UT | PHYSICIAN ASSISTANT | 410 | 4,825 | $192,675 | $40 | premium | 13.2% | — |
| 87 | NORTHEAST ARKANSAS CLINIC CHARITABLE FOUNDATION, INC. | JONESBORO | AR | NURSE PRACTITIONER | 301 | 4,714 | $214,822 | $46 | premium | 3.8% | (870) 936-8000 |
| 88 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 4,681 | $302,118 | $65 | premium | 3.3% | — |
| 89 | MEDICAL FOUNDATION OF CENTRAL MISSISSIPPI INC | JACKSON | MS | NURSE PRACTITIONER | 266 | 4,673 | $195,455 | $42 | premium | 2.3% | (601) 292-4261 |
| 90 | INLAND RHEUMATOLOGY AND OSTEOPOROSIS MEDICAL GROUP INC | UPLAND | CA | RHEUMATOLOGY | 4 | 4,651 | $162,820 | $35 | premium | 0.7% | (909) 982-0099 |
| 91 | HARBIN CLINIC LLC | ROME | GA | NURSE PRACTITIONER | 252 | 4,642 | $255,063 | $55 | premium | 1.8% | (762) 235-3340 |
| 92 | INFUSION4HEALTH | THOUSAND OAKS | CA | NURSE PRACTITIONER | 26 | 4,591 | $160,370 | $35 | premium | 0.7% | (805) 719-3700 |
| 93 | UNIVERSITY CANCER AND BLOOD CENTER LLC | ATHENS | GA | NURSE PRACTITIONER | 56 | 4,536 | $352,946 | $78 | premium | 1.7% | (706) 353-2990 |
| 94 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 4,531 | $460,680 | $102 | premium | 0.7% | (904) 953-2000 |
| 95 | QUAD INTERMED COMPANY LLC | LAUREL | MS | FAMILY PRACTICE | 43 | 4,519 | $177,071 | $39 | premium | 2.2% | (601) 425-4893 |
| 96 | ONCOLOGY HEMATOLOGY WEST PC | OMAHA | NE | PHYSICIAN ASSISTANT | 55 | 4,491 | $252,769 | $56 | premium | 8.5% | (402) 393-3110 |
| 97 | STILLWATER MEDICAL CENTER AUTHORITY | STILLWATER | OK | PHYSICIAN ASSISTANT | 166 | 4,449 | $209,183 | $47 | premium | 3.1% | (405) 372-1480 |
| 98 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 4,422 | $193,529 | $44 | premium | 12.1% | (801) 261-8346 |
| 99 | ALLERGY ASSOCIATES, PA | KNOXVILLE | TN | NURSE PRACTITIONER | 72 | 4,357 | $304,918 | $70 | premium | 1.5% | (865) 584-8588 |
| 100 | INTEGRATED MEDICAL PROFESSIONALS PLLC | SEAFORD | NY | UROLOGY | 98 | 4,335 | $212,112 | $49 | premium | 1.8% | (516) 520-8080 |
Showing the top 100 of 9,281 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 →