459,359 observed fee-for-service (50%) · ~464,185 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 | 95044 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 | NORTH SHORE CENTER FOR MEDICAL AESTHETICS LTD | NORTHBROOK | IL | DERMATOLOGY | 7 | 21,988 | $395,156 | $18 | premium | 63.3% | (847) 480-1111 |
| 2 | TOTAL VEIN AND SKIN LLC | BOYNTON BEACH | FL | DERMATOLOGY | 15 | 14,468 | $140,224 | $10 | premium | 17.6% | (561) 739-5252 |
| 3 | CARESWAY INC | GLENDALE | CA | ANESTHESIOLOGY | 2 | 14,160 | $98,640 | $7 | premium | 14.3% | (747) 215-6998 |
| 4 | MICHAEL WEIN MD PA | VERO BEACH | FL | ALLERGY/IMMUNOLOGY | 2 | 12,126 | $181,890 | $15 | premium | 14.7% | (772) 299-7299 |
| 5 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 9,867 | $277,176 | $28 | premium | 10.0% | (415) 600-1020 |
| 6 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 8,935 | $232,310 | $26 | premium | 20.6% | (617) 732-5500 |
| 7 | ARIZONA ASTHMA ALLERGY LEGACY PLC | PEORIA | AZ | PHYSICIAN ASSISTANT | 17 | 8,892 | $160,056 | $18 | premium | 31.5% | (602) 843-2991 |
| 8 | DERMATOLOGY DIVISION UNIVERSITY OF UTAH MEDICAL CENTER | SALT LAKE CITY | UT | DERMATOLOGY | 73 | 8,279 | $111,684 | $13 | premium | 70.3% | (801) 587-6340 |
| 9 | SCHWEIGER DERMATOLOGY PLLC | NEW YORK | NY | PHYSICIAN ASSISTANT | 238 | 8,085 | $178,811 | $22 | premium | 11.9% | (212) 283-3000 |
| 10 | CAROLINA ASTHMA AND ALLERGY CENTER PA | CHARLOTTE | NC | ALLERGY/IMMUNOLOGY | 33 | 7,271 | $94,523 | $13 | premium | 63.1% | (704) 372-7900 |
| 11 | SAGUARO DERMATOLOGY ASSOCIATES LLC | PHOENIX | AZ | DERMATOLOGY | 12 | 6,723 | $48,553 | $7 | premium | 23.8% | (602) 867-7546 |
| 12 | PREMIER ALLERGIST OF FLORIDA LLC | VENICE | FL | ALLERGY/IMMUNOLOGY | 23 | 6,169 | $73,083 | $12 | premium | 7.5% | (941) 800-2901 |
| 13 | FOREFRONT DERMATOLOGY SC | PENSACOLA | KY | PHYSICIAN ASSISTANT | 639 | 6,091 | $342,010 | $56 | premium | 32.7% | (800) 243-7546 |
| 14 | PARK NICOLLET CLINIC | ST LOUIS PARK | MN | PHYSICIAN ASSISTANT | 1754 | 6,020 | $144,480 | $24 | premium | 66.5% | (952) 993-3123 |
| 15 | DEACONESS CLINIC INC | EVANSVILLE | IN | NURSE PRACTITIONER | 403 | 5,806 | $98,702 | $17 | premium | 53.3% | (812) 450-6700 |
| 16 | ASSOCIATES IN DERMATOLOGY, PLLC | LOUISVILLE | KY | DERMATOLOGY | 37 | 5,788 | $63,339 | $11 | premium | 31.1% | (502) 583-1749 |
| 17 | SILVER FALLS DERMATOLOGY LLC | PORT ANGELES | WA | PHYSICIAN ASSISTANT | 98 | 5,575 | $78,050 | $14 | premium | 73.8% | (503) 362-8385 |
| 18 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 5,410 | $98,463 | $18 | premium | 5.5% | (858) 455-9100 |
| 19 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 5,325 | $133,125 | $25 | premium | 20.1% | (214) 633-5555 |
| 20 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 4,827 | $139,983 | $29 | premium | 17.1% | (800) 603-0558 |
| 21 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 4,685 | $196,819 | $42 | premium | 56.3% | (608) 287-2050 |
| 22 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | TX | PHYSICIAN ASSISTANT | 2942 | 4,553 | $118,378 | $26 | premium | 17.2% | (617) 732-5500 |
| 23 | CENTER FOR DERMATOLOGY PA | FLORHAM PARK | NJ | DERMATOLOGY | 2 | 4,527 | $67,905 | $15 | premium | 15.4% | — |
| 24 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 4,523 | $104,029 | $23 | premium | 5.5% | (305) 689-5437 |
| 25 | DERMATOLOGIST MEDICAL GROUP OF NORTH COUNTY INC | OCEANSIDE | CA | DERMATOLOGY | 19 | 4,264 | $76,752 | $18 | premium | 4.3% | (760) 758-5340 |
| 26 | STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER | JACKSON | MS | NURSE PRACTITIONER | 951 | 4,049 | $68,833 | $17 | premium | 51.3% | (601) 815-4775 |
| 27 | KANSAS MEDICAL CLINIC PA | TOPEKA | KS | PHYSICIAN ASSISTANT | 50 | 3,995 | $59,925 | $15 | premium | 81.9% | (785) 272-6860 |
| 28 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 3,869 | $135,415 | $35 | premium | 4.7% | (904) 953-2000 |
| 29 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 3,820 | $152,800 | $40 | premium | 5.6% | (212) 746-5454 |
| 30 | GERMANTOWN DERMATOLOGY LLC | GERMANTOWN | TN | DERMATOLOGY | 2 | 3,787 | $32,161 | $8 | premium | 69.6% | (901) 579-7395 |
| 31 | LOUIS KUCHNIR MD PC | MARLBOROUGH | MA | DERMATOLOGY | 17 | 3,765 | $76,317 | $20 | premium | 8.7% | 5084857779857779 |
| 32 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 3,730 | $96,980 | $26 | premium | 10.7% | — |
| 33 | INTEGRIS PHYSICIAN GROUP OF FLORIDA PLLC | NAPLES | FL | ALLERGY/IMMUNOLOGY | 3 | 3,654 | $36,175 | $10 | premium | 4.4% | (239) 919-4342 |
| 34 | USC CARE MEDICAL GROUP INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 1374 | 3,557 | $106,710 | $30 | premium | 3.6% | (800) 872-2273 |
| 35 | PRINCETON ALLERGY AND ASTHMA ASSOCIATES, PA | SKILLMAN | NJ | ALLERGY/IMMUNOLOGY | 7 | 3,516 | $52,740 | $15 | premium | 12.0% | (609) 921-2202 |
| 36 | ALLERGY CONSULTANTS, PA | SPARTA | NJ | PHYSICIAN ASSISTANT | 3 | 3,455 | $79,465 | $23 | premium | 11.8% | (973) 726-8850 |
| 37 | ADVANCED DERMATOLOGY CARE INC | SAN RAMON | CA | PHYSICIAN ASSISTANT | 8 | 3,452 | $58,280 | $17 | premium | 3.5% | — |
| 38 | SOUTH NASSAU DERMATOLOGY PC | OCEANSIDE | NY | DERMATOLOGY | 11 | 3,361 | $23,623 | $7 | premium | 5.0% | (516) 766-0345 |
| 39 | SIMEDHEALTH LLC | GAINESVILLE | FL | NURSE PRACTITIONER | 91 | 3,276 | $38,691 | $12 | premium | 4.0% | (352) 416-1082 |
| 40 | ALLERGY AND ASTHMA TREATMENT CENTER P C | GLENDALE | CA | ALLERGY/IMMUNOLOGY | 3 | 3,228 | $54,396 | $17 | premium | 3.3% | (818) 558-5828 |
| 41 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 3,227 | $87,997 | $27 | premium | 3.3% | (916) 681-8852 |
| 42 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SACRAMENTO | CA | FAMILY PRACTICE | 561 | 3,178 | $85,806 | $27 | premium | 3.2% | (916) 734-7777 |
| 43 | SODERSTROM DERMATOLOGY CENTER S C | PEORIA | IL | PHYSICIAN ASSISTANT | 34 | 3,120 | $46,800 | $15 | premium | 9.0% | — |
| 44 | BORLAND GROOVER CLINIC, PA | JACKSONVILLE | FL | GASTROENTEROLOGY | 125 | 2,904 | $60,984 | $21 | premium | 3.5% | (904) 398-7205 |
| 45 | SCOTT SANDERS MD PLLC | NEW CITY | NY | PHYSICIAN ASSISTANT | 6 | 2,881 | $28,580 | $10 | premium | 4.2% | (845) 499-2017 |
| 46 | NORTHEAST DERMATOLOGY ASSOCIATES PC | NORTH ANDOVER | MA | PHYSICIAN ASSISTANT | 82 | 2,804 | $76,788 | $27 | premium | 6.5% | (978) 691-5690 |
| 47 | ANGELA YEN MOORE MD PA | ARLINGTON | TX | NURSE PRACTITIONER | 4 | 2,776 | $15,573 | $6 | premium | 10.5% | 8177957546320 |
| 48 | GREATER BOSTON ALLERGY ASTHMA SINUS AND IMMUNOLOGY CENTERS, P.C. | HYANNIS | MA | ALLERGY/IMMUNOLOGY | 7 | 2,740 | $54,800 | $20 | premium | 6.3% | (508) 362-0099 |
| 49 | ALLERGY CARE CENTER A MEDICAL CORPORATION | CAMARILLO | CA | PHYSICIAN ASSISTANT | 4 | 2,644 | $81,964 | $31 | premium | 2.7% | (805) 482-8989 |
| 50 | BUFFALO MEDICAL GROUP, P.C. | WILLIAMSVILLE | NY | PHYSICIAN ASSISTANT | 237 | 2,595 | $36,330 | $14 | premium | 3.8% | (716) 630-1000 |
| 51 | JEFFREY WEISS, M.D., P.A. | RIVERDALE | NJ | ALLERGY/IMMUNOLOGY | 17 | 2,454 | $44,172 | $18 | premium | 8.4% | (973) 248-9199 |
| 52 | ALLERGY PARTNERS PLLC | ASHEVILLE | SC | ALLERGY/IMMUNOLOGY | 143 | 2,448 | $53,856 | $22 | premium | 40.7% | (828) 253-3382 |
| 53 | ASTHMA AND ALLERGY PHYSICIANS OF RHODE ISLAND INC | LINCOLN | RI | ALLERGY/IMMUNOLOGY | 3 | 2,437 | $34,565 | $14 | premium | 100.0% | (401) 334-0410 |
| 54 | DERMATOLOGY ASSOCIATES , PSC | LOUISVILLE | KY | DERMATOLOGY | 8 | 2,345 | $16,415 | $7 | premium | 12.6% | 5028966355200 |
| 55 | GEORGIA SKIN CANCER AND AESTHEITIC DERMATOLOGY, LLC | WATKINSVILLE | GA | PHYSICIAN ASSISTANT | 26 | 2,320 | $58,000 | $25 | premium | 35.0% | 70654358583207 |
| 56 | HUGH H WINDOM MD PA | SARASOTA | FL | ALLERGY/IMMUNOLOGY | 4 | 2,301 | $12,149 | $5 | premium | 2.8% | (941) 927-4888 |
| 57 | SCHWEIGER DERMATOLOGY PC | HOBOKEN | NJ | PHYSICIAN ASSISTANT | 181 | 2,241 | $60,507 | $27 | premium | 7.6% | (212) 283-3000 |
| 58 | COLORADO ALLERGY AND ASTHMA CENTERS PC | HIGHLANDS RANCH | CO | PHYSICIAN ASSISTANT | 25 | 2,212 | $24,332 | $11 | premium | 22.9% | (303) 795-8177 |
| 59 | ALLERGY ASTHMA ASSOCIATES PC | TUCSON | AZ | ALLERGY/IMMUNOLOGY | 4 | 2,178 | $39,204 | $18 | premium | 7.7% | (520) 531-9254 |
| 60 | APEX ALLERGY AND IMMUNOLOGY, P.C. | GREENVILLE | SC | PHYSICIAN ASSISTANT | 5 | 2,170 | $52,080 | $24 | premium | 36.1% | (864) 720-2739 |
| 61 | ALLERGY CLINIC OF TULSA INC | TULSA | OK | ALLERGY/IMMUNOLOGY | 12 | 2,162 | $28,106 | $13 | premium | 54.7% | (918) 307-1613 |
| 62 | ALLERGY PARTNERS PLLC | ASHEVILLE | NC | ALLERGY/IMMUNOLOGY | 143 | 2,064 | $45,408 | $22 | premium | 17.9% | (828) 253-3382 |
| 63 | PRIMA CARE, PC | FALL RIVER | MA | NURSE PRACTITIONER | 220 | 1,932 | $36,708 | $19 | premium | 4.5% | — |
| 64 | BEVERLY HILLS ALLERGY | BEVERLY HILLS | CA | INTERNAL MEDICINE | 2 | 1,921 | $28,815 | $15 | premium | 1.9% | (310) 855-9909 |
| 65 | J ROBERT WEST MD INC | LAS VEGAS | NV | DERMATOLOGY | 140 | 1,890 | $20,790 | $11 | premium | 24.5% | (702) 258-1001 |
| 66 | WHITE PLAINS PHYSICIAN SERVICES PC | WHITE PLAINS | NY | PHYSICIAN ASSISTANT | 383 | 1,876 | $40,882 | $22 | premium | 2.8% | (914) 681-0600 |
| 67 | LOS ANGELES FOOD ALLERGY INSTITUTE, INC. | BURBANK | CA | ALLERGY/IMMUNOLOGY | 2 | 1,865 | $17,941 | $10 | premium | 1.9% | (818) 561-4533 |
| 68 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 1,857 | $92,850 | $50 | premium | 2.7% | (914) 241-1050 |
| 69 | FAMILY DERMATOLOGY OF NORTH FLORIDA LLC | TALLAHASSEE | FL | DERMATOLOGY | 4 | 1,856 | $18,014 | $10 | premium | 2.3% | (850) 402-9444 |
| 70 | NEW YORK ALLERGY ASTHMA AND IMMUNOLOGY PC | GREAT NECK | NY | PHYSICIAN ASSISTANT | 10 | 1,812 | $51,823 | $29 | premium | 2.7% | (516) 487-6200 |
| 71 | DERMATOLOGY ASSOCIATES OF LINCOLN, LLC | LINCOLN | NE | PHYSICIAN ASSISTANT | 5 | 1,803 | $17,199 | $10 | premium | 100.0% | (402) 413-7460 |
| 72 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 1,796 | $64,656 | $36 | premium | 4.1% | (508) 334-1000 |
| 73 | PRATT MED/SURG DERMATOLOGY ASSOCIATES INC | BOSTON | PA | DERMATOLOGY | 20 | 1,780 | $35,093 | $20 | premium | 18.2% | (617) 636-5000 |
| 74 | HUDSON DERMATOLOGY, PC | FISHKILL | NY | PHYSICIAN ASSISTANT | 40 | 1,760 | $19,555 | $11 | premium | 2.6% | (845) 896-7730 |
| 75 | KRATZ ALLERGY ASTHMA AND IMMUNOLOGY ASSOCIATES PA | PORT RICHEY | FL | NURSE PRACTITIONER | 4 | 1,755 | $26,325 | $15 | premium | 2.1% | (727) 819-1610 |
| 76 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 1,733 | $60,655 | $35 | premium | 5.0% | (217) 544-6464 |
| 77 | ALLERGY AFFILIATES, INC. | BRADENTON | FL | PHYSICIAN ASSISTANT | 2 | 1,726 | $15,534 | $9 | premium | 2.1% | (941) 792-4151 |
| 78 | ALLERGY,ASTHMA AND CLINICAL IMMUNOLOGY SPECIALISTS, P.C. | HUNTSVILLE | AL | ALLERGY/IMMUNOLOGY | 4 | 1,700 | $17,000 | $10 | premium | 56.8% | (256) 382-0070 |
| 79 | ALLERGY PARTNERS OF NJ PC | OCEAN | NJ | ALLERGY/IMMUNOLOGY | 7 | 1,628 | $35,816 | $22 | premium | 5.5% | (732) 695-2555 |
| 80 | FOREFRONT DERMATOLOGY SC | PENSACOLA | IN | PHYSICIAN ASSISTANT | 639 | 1,610 | $90,402 | $56 | premium | 14.8% | (800) 243-7546 |
| 81 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 1,587 | $31,740 | $20 | premium | 2.3% | (212) 241-4812 |
| 82 | EPIPHANY DERMATOLOGY PA | WACO | TX | DERMATOLOGY | 106 | 1,556 | $23,225 | $15 | premium | 5.9% | (254) 537-1265 |
| 83 | INSTITUTE FOR ASTHMA AND ALLERGY PC | WHEATON | MD | ALLERGY/IMMUNOLOGY | 11 | 1,547 | $29,393 | $19 | premium | 37.1% | (301) 962-5800 |
| 84 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,543 | $38,575 | $25 | premium | 2.3% | (212) 263-9700 |
| 85 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | DERMATOLOGY | 35 | 1,527 | $56,499 | $37 | premium | 1.5% | (310) 825-6911 |
| 86 | TOTTORI ALLERGY AND ASTHMA ASSOCIATES PC | Las Vegas | NV | PHYSICIAN ASSISTANT | 3 | 1,519 | $19,747 | $13 | premium | 19.7% | — |
| 87 | ALLERGY AND ASTHMA ASSOCIATES OF MI PC | ROYAL OAK | MI | ALLERGY/IMMUNOLOGY | 3 | 1,498 | $14,980 | $10 | premium | 28.5% | (248) 549-0777 |
| 88 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 1,484 | $37,100 | $25 | premium | 5.0% | (908) 273-4300 |
| 89 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 1,484 | $16,324 | $11 | premium | 12.6% | (801) 261-8346 |
| 90 | ALLEGHENY CLINIC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 2293 | 1,461 | $32,142 | $22 | premium | 15.0% | — |
| 91 | ARKANSAS DERMATOLOGY PLLC | HEBER SPRINGS | AR | PHYSICIAN ASSISTANT | 20 | 1,437 | $7,472 | $5 | premium | 35.8% | (501) 362-3100 |
| 92 | OSO SPECIALTY INFUSION INC | IRVINE | CA | ALLERGY/IMMUNOLOGY | 10 | 1,431 | $28,620 | $20 | premium | 1.4% | (949) 660-7126 |
| 93 | ALLERGY AND ASTHMA CENTER- KATZ, M.D., LTD. | LAS VEGAS | NV | ALLERGY/IMMUNOLOGY | 2 | 1,430 | $15,730 | $11 | premium | 18.5% | (702) 360-6100 |
| 94 | ENT AND ALLERGY ASSOCIATES LLP | YONKERS | NJ | OTOLARYNGOLOGY | 429 | 1,407 | $21,105 | $15 | premium | 4.8% | (914) 963-8588 |
| 95 | SKIN SURGERY CENTER PA | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 73 | 1,380 | $18,753 | $14 | premium | 12.0% | (336) 724-2434 |
| 96 | MIDTOWN DERMATOLOGY SERVICES PC | NEW YORK | NY | DERMATOLOGY | 10 | 1,360 | $27,200 | $20 | premium | 2.0% | 2126867306225 |
| 97 | ALLERGY AND ASTHMA CENTER OF WESTERN COLORADO P C | GRAND JUNCTION | CO | ALLERGY/IMMUNOLOGY | 3 | 1,341 | $19,369 | $14 | premium | 13.9% | (970) 241-0170 |
| 98 | ALLERGY PARTNERS PLLC | ASHEVILLE | VA | ALLERGY/IMMUNOLOGY | 143 | 1,330 | $29,260 | $22 | premium | 33.7% | (828) 253-3382 |
| 99 | THE ALLERGY CENTER AT BROOKSTONE PC | COLUMBUS | GA | ALLERGY/IMMUNOLOGY | 2 | 1,328 | $26,560 | $20 | premium | 20.0% | (706) 324-4012 |
| 100 | COLORADO SKIN SURGERY AND DERMATOLOGY, LLC | CENTENNIAL | CO | DERMATOLOGY | 9 | 1,287 | $16,650 | $13 | premium | 13.3% | (303) 791-0410 |
Showing the top 100 of 201 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 →