8,309 observed fee-for-service (49%) · ~8,555 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 | 15734 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 | LONG ISLAND PLASTIC SURGICAL GROUP, PC | GARDEN CITY | NY | PLASTIC AND RECONSTRUCTIVE SURGERY | 41 | 896 | $1,610,300 | $1,797 | premium | 25.9% | (516) 629-3838 |
| 2 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 573 | $8,514,000 | $14,859 | premium | 16.6% | (212) 241-4812 |
| 3 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 351 | $11,138,901 | $31,735 | premium | 10.1% | (212) 263-9700 |
| 4 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 295 | $4,440,418 | $15,052 | premium | 8.5% | — |
| 5 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 287 | $5,088,864 | $17,731 | premium | 8.3% | (212) 746-5454 |
| 6 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 234 | $2,812,200 | $12,018 | premium | 6.8% | (212) 305-8559 |
| 7 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 233 | $1,752,888 | $7,523 | premium | 42.4% | — |
| 8 | BAPTIST HEALTH MEDICAL GROUP PHYSICIANS LLC | SOUTH MIAMI | FL | PHYSICIAN ASSISTANT | 653 | 221 | $699,602 | $3,166 | premium | 42.0% | (786) 662-0600 |
| 9 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 208 | $1,569,360 | $7,545 | premium | 51.0% | (215) 662-2777 |
| 10 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 206 | $587,902 | $2,854 | premium | 64.2% | — |
| 11 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | DC | PHYSICIAN ASSISTANT | 3707 | 177 | $680,854 | $3,847 | premium | 82.3% | (202) 429-2401 |
| 12 | CENTENNIAL SURGICAL CLINIC, LLC | NASHVILLE | TN | CARDIAC SURGERY | 15 | 149 | $509,282 | $3,418 | premium | 74.5% | (615) 342-1000 |
| 13 | PLASTIC AND COSMETIC SURGICAL GROUP OF NEW JERSEY, P.C. | WEST DEPTFORD | NJ | PLASTIC AND RECONSTRUCTIVE SURGERY | 2 | 135 | $424,575 | $3,145 | premium | 19.6% | (856) 256-7705 |
| 14 | CAROLINA COLORECTAL SURGERY, PC | RALEIGH | NC | PHYSICIAN ASSISTANT | 2 | 133 | $666,463 | $5,011 | premium | 51.2% | (919) 784-6600 |
| 15 | SAMRA PLASTIC AND RECONSTRUCTIVE SURGERY LLC | HOLMDEL | NJ | PLASTIC AND RECONSTRUCTIVE SURGERY | 9 | 131 | $4,209,107 | $32,131 | premium | 19.0% | (732) 739-2100 |
| 16 | PROVIDENCE SAINT JOHNS MEDICAL FOUNDATION | SANTA MONICA | CA | PHYSICIAN ASSISTANT | 287 | 124 | $897,538 | $7,238 | premium | 11.7% | (310) 829-6789 |
| 17 | LIFESPAN PHYSICIAN GROUP INC | PROVIDENCE | RI | PHYSICIAN ASSISTANT | 947 | 121 | $461,131 | $3,811 | premium | 100.0% | (401) 793-9172 |
| 18 | THE GEORGIA INSTITUTE FOR PLASTIC SURGERY INC | SAVANNAH | GA | PLASTIC AND RECONSTRUCTIVE SURGERY | 8 | 121 | $1,028,500 | $8,500 | premium | 69.1% | (912) 355-8000 |
| 19 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 120 | $613,339 | $5,111 | premium | 11.3% | (415) 600-1020 |
| 20 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 105 | $403,666 | $3,844 | premium | 15.3% | (732) 362-3663 |
| 21 | PRACTICE ASSOCIATES MEDICAL GROUP | MORRISTOWN | NJ | NURSE PRACTITIONER | 1404 | 104 | $489,650 | $4,708 | premium | 15.1% | (973) 971-5596 |
| 22 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 91 | $331,806 | $3,646 | premium | 54.2% | — |
| 23 | BASSAM SAYEGH MD PA | JUPITER | FL | GENERAL SURGERY | 2 | 90 | $392,484 | $4,361 | premium | 17.1% | (561) 743-7766 |
| 24 | UCLA ASSOCIATED GENERAL SURGEONS | LOS ANGELES | CA | GENERAL SURGERY | 47 | 87 | $928,140 | $10,668 | premium | 8.2% | (310) 267-7838 |
| 25 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 87 | $915,390 | $10,522 | premium | 22.0% | (214) 633-5555 |
| 26 | CHEVY CHASE SURGICAL ASSOCIATES, P.C. | CHEVY CHASE | MD | GENERAL SURGERY | 5 | 85 | $216,000 | $2,541 | premium | 18.4% | (301) 656-6700 |
| 27 | LEE HEALTH SYSTEM INC | FORT MYERS | FL | NURSE PRACTITIONER | 1370 | 77 | $325,828 | $4,232 | premium | 14.6% | (239) 343-9888 |
| 28 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 75 | $361,900 | $4,825 | premium | 69.4% | (314) 747-3000 |
| 29 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 75 | $489,686 | $6,529 | premium | 7.1% | (650) 723-4000 |
| 30 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 74 | $711,413 | $9,614 | premium | 23.1% | — |
| 31 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SANTA MONICA | CA | ORTHOPEDIC SURGERY | 67 | 74 | $734,520 | $9,926 | premium | 7.0% | (310) 319-1234 |
| 32 | OSU INTERNAL MEDICINE LLC | COLUMBUS | OH | NURSE PRACTITIONER | 1155 | 68 | $351,220 | $5,165 | premium | 12.4% | (614) 293-8000 |
| 33 | PRACTICE ASSOCIATES MEDICAL GROUP | MORRISTOWN | NY | NURSE PRACTITIONER | 1404 | 64 | $389,180 | $6,081 | premium | 1.9% | (973) 971-5596 |
| 34 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 64 | $424,512 | $6,633 | premium | 48.1% | (205) 934-3460 |
| 35 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 63 | $364,783 | $5,790 | premium | 6.0% | (858) 455-9100 |
| 36 | ST PAUL PLACE SPECIALISTS, INC. | BALTIMORE | MD | PHYSICIAN ASSISTANT | 337 | 60 | $204,549 | $3,409 | premium | 13.0% | (410) 663-8100 |
| 37 | ARLINGTON NEUROSURGEONS, PLLC | PLANO | TX | PHYSICIAN ASSISTANT | 46 | 58 | $248,206 | $4,279 | premium | 14.7% | (972) 596-6800 |
| 38 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | OH | NURSE PRACTITIONER | 4339 | 55 | $416,731 | $7,577 | premium | 10.0% | — |
| 39 | SJHMC PHYSICIAN SERVICES | PHOENIX | AZ | NURSE PRACTITIONER | 690 | 54 | $239,344 | $4,432 | premium | 15.3% | (602) 406-6017 |
| 40 | WICHITA SURGICAL SPECIALISTS PA | WICHITA | KS | GENERAL SURGERY | 60 | 52 | $181,394 | $3,488 | premium | 100.0% | (316) 263-0296 |
| 41 | BAYLOR COLLEGE OF MEDICINE | HOUSTON | TX | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1222 | 48 | $358,231 | $7,463 | premium | 12.2% | — |
| 42 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 48 | $579,168 | $12,066 | premium | 100.0% | (507) 284-2511 |
| 43 | UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL | CHARLESTON | SC | PHYSICIAN ASSISTANT | 1692 | 48 | $533,652 | $11,118 | premium | 28.6% | (843) 792-1414 |
| 44 | STONY BROOK SURGICAL ASSOCIATES UNIVERSITY FACULTY PRACTICE CORPORATI | HAMPTON BAYS | NY | GENERAL SURGERY | 102 | 47 | $500,785 | $10,655 | premium | 1.4% | (631) 723-5000 |
| 45 | SAINT JOSEPH REGIONAL MEDICAL CENTER INC | MISHAWAKA | IN | NURSE PRACTITIONER | 137 | 46 | $88,174 | $1,917 | premium | 100.0% | (574) 335-6830 |
| 46 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | ORANGE | CA | PLASTIC AND RECONSTRUCTIVE SURGERY | 15 | 46 | $397,513 | $8,642 | premium | 4.3% | (714) 456-7004 |
| 47 | TMH PHYSICIANS AND SURGEONS, PLLC | HOUSTON | TX | PLASTIC AND RECONSTRUCTIVE SURGERY | 29 | 46 | $531,315 | $11,550 | premium | 11.6% | (713) 441-6106 |
| 48 | HH PHYSICIANS NETWORK | HUNTSVILLE | AL | PULMONARY DISEASE | 105 | 45 | $111,150 | $2,470 | premium | 33.8% | (256) 265-8553 |
| 49 | NEW YORK UNIVERSITY | NEW YORK | OR | DIAGNOSTIC RADIOLOGY | 5704 | 45 | $222,162 | $4,937 | premium | 50.6% | (212) 263-9700 |
| 50 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 44 | $273,621 | $6,219 | premium | 100.0% | (801) 261-8346 |
| 51 | PINNACLE HEALTH MEDICAL SERVICES | HARRISBURG | PA | PHYSICIAN ASSISTANT | 1060 | 43 | $148,350 | $3,450 | premium | 10.5% | (717) 782-2100 |
| 52 | UCSF DEPT OF SURGERY | SAN FRANCISCO | CA | GENERAL SURGERY | 212 | 41 | $333,084 | $8,124 | premium | 3.9% | (415) 476-1000 |
| 53 | WAKEMED SPECIALISTS GROUP LLC | RALEIGH | NC | PHYSICIAN ASSISTANT | 860 | 41 | $205,451 | $5,011 | premium | 15.8% | (919) 350-7270 |
| 54 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 39 | $180,804 | $4,636 | premium | 3.7% | — |
| 55 | GOMEZ KOZAR MCELREATH AND SMITH PROFESSIONAL CORPORATION | RENO | NV | GENERAL SURGERY | 26 | 38 | $237,660 | $6,254 | premium | 100.0% | (775) 323-7500 |
| 56 | VIVEK A MEHTA MD INC | IRVINE | CA | CLINICAL PSYCHOLOGIST | 7 | 37 | $18,750 | $507 | premium | 3.5% | (949) 344-3468 |
| 57 | UNIVERSITY HEALTH SYSTEM, INC. | KNOXVILLE | OH | NURSE PRACTITIONER | 561 | 37 | $106,004 | $2,865 | premium | 6.7% | (865) 305-6333 |
| 58 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 36 | $219,600 | $6,100 | premium | 13.8% | (919) 684-8111 |
| 59 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 36 | $369,600 | $10,267 | premium | 10.2% | (800) 603-0558 |
| 60 | ALEGENT CREIGHTON CLINIC | OMAHA | NE | PHYSICIAN ASSISTANT | 942 | 36 | $145,512 | $4,042 | premium | 100.0% | — |
| 61 | CEDARS-SINAI MEDICAL CENTER | WEST HOLLYWOOD | CA | NURSE PRACTITIONER | 802 | 34 | $190,628 | $5,607 | premium | 3.2% | (310) 423-3277 |
| 62 | OSU PLASTIC SURGERY LLC | COLUMBUS | OH | PHYSICIAN ASSISTANT | 42 | 33 | $495,000 | $15,000 | premium | 6.0% | (614) 293-8566 |
| 63 | NORTH FLORIDA SURGEONS PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 331 | 33 | $148,760 | $4,508 | premium | 6.3% | (904) 396-1725 |
| 64 | THE PLASTIC SURGERY CENTER | SHREWSBURY | NJ | PHYSICIAN ASSISTANT | 86 | 32 | $719,033 | $22,470 | premium | 4.7% | — |
| 65 | STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER | JACKSON | MS | NURSE PRACTITIONER | 951 | 32 | $164,000 | $5,125 | premium | 100.0% | (601) 815-4775 |
| 66 | CLEVELAND CLINIC | CLEVELAND | ME | PHYSICIAN ASSISTANT | 6828 | 32 | $242,938 | $7,592 | premium | 100.0% | — |
| 67 | MISSION HEALTH COMMUNITY MULTISPECIALTY PROVIDERS LLC | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 593 | 31 | $126,852 | $4,092 | premium | 11.9% | (828) 213-1740 |
| 68 | COMMUNITY HEALTH PARTNERS | FRESNO | CA | INTERNAL MEDICINE | 509 | 31 | $129,215 | $4,168 | premium | 2.9% | (559) 459-6000 |
| 69 | UNIVERSITY HEALTH SYSTEM, INC. | KNOXVILLE | TN | NURSE PRACTITIONER | 561 | 31 | $108,750 | $3,508 | premium | 15.5% | (865) 305-6333 |
| 70 | SINAI HOSPITAL OF BALTIMORE, INC | BALTIMORE | MD | PHYSICIAN ASSISTANT | 386 | 31 | $121,365 | $3,915 | premium | 6.7% | — |
| 71 | SWEDISH HEALTH SERVICES | SEATTLE | WA | PHYSICIAN ASSISTANT | 1033 | 31 | $139,686 | $4,506 | premium | 40.8% | — |
| 72 | MARY IMOGENE BASSETT HOSPITAL | COOPERSTOWN | NY | PHYSICIAN ASSISTANT | 792 | 30 | $72,800 | $2,427 | premium | 0.9% | — |
| 73 | JOHNS HOPKINS UNIVERSITY | BALTIMORE | MD | NURSE PRACTITIONER | 2900 | 29 | $120,479 | $4,154 | premium | 6.3% | (410) 502-4340 |
| 74 | JEFFERSON UNIVERSITY PHYSICIANS | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 1570 | 29 | $105,705 | $3,645 | premium | 7.1% | — |
| 75 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 29 | $214,119 | $7,383 | premium | 17.3% | (864) 587-3000 |
| 76 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 27 | $137,997 | $5,111 | premium | 6.6% | — |
| 77 | STAMFORD HEALTH MEDICAL GROUP INC | STAMFORD | CT | PHYSICIAN ASSISTANT | 419 | 26 | $145,496 | $5,596 | premium | 100.0% | (203) 276-4644 |
| 78 | COOPER CARE ALLIANCE, PC | TURNERSVILLE | NJ | FAMILY PRACTICE | 117 | 26 | $153,062 | $5,887 | premium | 3.8% | (856) 536-1515 |
| 79 | WOUND CENTER INC | BEVERLY HILLS | CA | PHYSICIAN ASSISTANT | 6 | 26 | $620,000 | $23,846 | premium | 2.5% | (310) 919-4179 |
| 80 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | OH | NURSE PRACTITIONER | 2120 | 26 | $74,054 | $2,848 | premium | 4.7% | (984) 215-5556 |
| 81 | VIRTUA MEDICAL GROUP, PA | VOORHEES | DE | PHYSICIAN ASSISTANT | 1662 | 25 | $70,000 | $2,800 | premium | 64.1% | (856) 247-7260 |
| 82 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 25 | $232,305 | $9,292 | premium | 100.0% | (319) 678-8201 |
| 83 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 25 | $151,431 | $6,057 | premium | 100.0% | (405) 271-4311 |
| 84 | MSKCC SURGERY GROUP | NEW YORK | NY | PHYSICIAN ASSISTANT | 373 | 25 | $336,277 | $13,451 | premium | 0.7% | (212) 639-2000 |
| 85 | ECM HEALTH GROUP LLC | FLORENCE | AL | DIAGNOSTIC RADIOLOGY | 140 | 24 | $78,912 | $3,288 | premium | 18.0% | (256) 718-5900 |
| 86 | MSKCC SURGERY GROUP | NEW YORK | IL | PHYSICIAN ASSISTANT | 373 | 24 | $308,040 | $12,835 | premium | 7.5% | (212) 639-2000 |
| 87 | VIRGINIA MASON MEDICAL CENTER | SEATTLE | WA | PHYSICIAN ASSISTANT | 879 | 23 | $99,478 | $4,325 | premium | 30.3% | (206) 223-6600 |
| 88 | CENTRAL JERSEY URGENT CARE | OCEAN | NJ | PHYSICIAN ASSISTANT | 79 | 23 | $334,650 | $14,550 | premium | 3.3% | (732) 455-8444 |
| 89 | MP PLASTIC SURGERY PLLC | FORT WORTH | TX | PLASTIC AND RECONSTRUCTIVE SURGERY | 9 | 23 | $34,171 | $1,486 | premium | 5.8% | (817) 529-9199 |
| 90 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | MD | PHYSICIAN ASSISTANT | 3707 | 23 | $89,590 | $3,895 | premium | 5.0% | (202) 429-2401 |
| 91 | KADLEC REGIONAL MEDICAL CENTER | RICHLAND | WA | PHYSICIAN ASSISTANT | 382 | 22 | $61,930 | $2,815 | premium | 28.9% | (509) 946-4611 |
| 92 | CHS PHYSICIAN PARTNERS PC | ROSLYN | NY | PHYSICIAN ASSISTANT | 734 | 22 | $117,678 | $5,349 | premium | 0.6% | — |
| 93 | PROVIDENCE HEALTH AND SERVICES OREGON | MEDFORD | OR | PHYSICIAN ASSISTANT | 164 | 22 | $111,892 | $5,086 | premium | 24.7% | — |
| 94 | UNIVERSITY PROFESSIONAL SERVICES | PORTLAND | OR | PHYSICIAN ASSISTANT | 1717 | 22 | $107,927 | $4,906 | premium | 24.7% | (503) 494-8311 |
| 95 | ALBANY MEDICAL COLLEGE | ALBANY | TX | PHYSICIAN ASSISTANT | 1070 | 22 | $97,350 | $4,425 | premium | 5.6% | (518) 262-3277 |
| 96 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 21 | $122,598 | $5,838 | premium | 63.6% | (508) 334-1000 |
| 97 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 21 | $126,025 | $6,001 | premium | 2.0% | (626) 256-4673 |
| 98 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 20 | $93,973 | $4,699 | premium | 10.0% | (901) 683-0055 |
| 99 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 19 | $199,500 | $10,500 | premium | 2.8% | (908) 273-4300 |
| 100 | CITY OF HOPE MEDICAL GROUP OF ARIZONA LLC | GOODYEAR | AZ | NURSE PRACTITIONER | 157 | 19 | $145,080 | $7,636 | premium | 5.4% | (623) 207-3000 |
Showing the top 100 of 101 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 →