953,211 observed fee-for-service (50%) · ~964,117 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; 2 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 | 69210 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 | SINU-CLEAR INC | MONTCLAIR | CA | NURSE PRACTITIONER | 2 | 39,113 | $3,793,961 | $97 | premium | 20.2% | (909) 621-4751 |
| 2 | ENT AND ALLERGY ASSOCIATES LLP | YONKERS | NY | OTOLARYNGOLOGY | 429 | 36,149 | $10,031,081 | $277 | premium | 32.4% | (914) 963-8588 |
| 3 | ENT AND ALLERGY ASSOCIATES OF FLORIDA, LLC | BOCA RATON | FL | OTOLARYNGOLOGY | 231 | 26,418 | $2,794,392 | $106 | premium | 17.7% | (561) 391-3333 |
| 4 | FLORIDA ENT ASSOCIATES INC | MIAMI | FL | OTOLARYNGOLOGY | 161 | 22,712 | $2,519,056 | $111 | premium | 15.2% | (305) 595-6200 |
| 5 | ENT AND ALLERGY ASSOCIATES LLP | YONKERS | NJ | OTOLARYNGOLOGY | 429 | 15,147 | $3,785,675 | $250 | premium | 23.4% | (914) 963-8588 |
| 6 | MASSACHUSETTS EYE AND EAR ASSOCIATES, INC | BOSTON | MA | OPHTHALMOLOGY | 406 | 9,242 | $1,840,479 | $199 | premium | 21.7% | (617) 523-7900 |
| 7 | MIDWEST ENT ALLIANCE PLLC | PARK RIDGE | IL | OTOLARYNGOLOGY | 95 | 8,625 | $1,051,783 | $122 | premium | 17.2% | (847) 674-5585 |
| 8 | CHARLESTON ENT ASSOCIATES, LLC | CHARLESTON | SC | OTOLARYNGOLOGY | 76 | 8,550 | $1,094,277 | $128 | premium | 27.6% | (843) 766-7103 |
| 9 | NORTH FLORIDA SURGEONS PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 331 | 6,358 | $984,742 | $155 | premium | 4.3% | (904) 396-1725 |
| 10 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 6,199 | $1,043,847 | $168 | premium | 3.2% | — |
| 11 | TEXAS EAR, NOSE AND THROAT SPECIALISTS, PLLC | HOUSTON | TX | OTOLARYNGOLOGY | 122 | 6,163 | $721,195 | $117 | premium | 9.7% | (281) 492-7827 |
| 12 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 5,997 | $899,980 | $150 | premium | 9.3% | (908) 273-4300 |
| 13 | WEST COAST EAR, NOSE AND THROAT, INC | CLEARWATER | FL | OTOLARYNGOLOGY | 22 | 5,747 | $555,795 | $97 | premium | 3.9% | (727) 791-1368 |
| 14 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 5,352 | $1,891,606 | $353 | premium | 4.8% | — |
| 15 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 5,276 | $871,475 | $165 | premium | 4.7% | (914) 241-1050 |
| 16 | MOBILE MEDICAL INC | PERRYSBURG | OH | NURSE PRACTITIONER | 83 | 4,914 | $260,442 | $53 | premium | 13.0% | 24852821166 |
| 17 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 4,614 | $1,831,661 | $397 | premium | 12.2% | — |
| 18 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 4,567 | $4,281,860 | $938 | premium | 4.1% | (212) 263-9700 |
| 19 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 4,288 | $825,983 | $193 | premium | 2.2% | (415) 600-1020 |
| 20 | JOHNS HOPKINS REGIONAL PHYSICIANS LLC | LUTHERVILLE | MD | OTOLARYNGOLOGY | 80 | 4,206 | $927,371 | $220 | premium | 11.2% | (443) 275-1337 |
| 21 | CHARLOTTE EYE EAR NOSE AND THROAT ASSOCIATES PA | CHARLOTTE | NC | QUALIFIED AUDIOLOGIST | 158 | 4,011 | $470,340 | $117 | premium | 13.0% | (704) 295-3414 |
| 22 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 3,580 | $376,530 | $105 | premium | 5.6% | — |
| 23 | DESERT EAR NOSE AND THROAT MEDICAL GROUP INC | RANCHO MIRAGE | CA | OTOLARYNGOLOGY | 8 | 3,432 | $274,735 | $80 | premium | 1.8% | (760) 340-4566 |
| 24 | ONSIGHT INC | EAST LANSING | MI | PODIATRY | 24 | 3,364 | $178,292 | $53 | premium | 12.6% | 24852821166 |
| 25 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 3,130 | $524,474 | $168 | premium | 1.6% | (916) 681-8852 |
| 26 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 3,056 | $334,861 | $110 | premium | 6.1% | — |
| 27 | CLINICAL HEALTH CARE ASSOCIATES OF NEW JERSEY PC | CHERRY HILL | NJ | DIAGNOSTIC RADIOLOGY | 825 | 3,004 | $428,996 | $143 | premium | 4.6% | (856) 433-2535 |
| 28 | LOUISIANA EAR, NOSE, AND THROAT SPECIALISTS, INC. | THIBODAUX | LA | OTOLARYNGOLOGY | 65 | 2,979 | $384,877 | $129 | premium | 16.4% | 9854465079110 |
| 29 | ANNAPOLIS ENT SURGICAL CENTER LLC | ANNAPOLIS | MD | QUALIFIED AUDIOLOGIST | 45 | 2,918 | $336,605 | $115 | premium | 7.7% | (410) 266-3900 |
| 30 | VIRGINIA EAR NOSE AND THROAT ASSOCIATES PC | NORTH CHESTERFIELD | VA | OTOLARYNGOLOGY | 33 | 2,823 | $255,420 | $90 | premium | 8.6% | (804) 484-3700 |
| 31 | MEDICAL AFFILIATES OF CAPE COD INC | HYANNIS | MA | NURSE PRACTITIONER | 236 | 2,791 | $377,497 | $135 | premium | 6.6% | (508) 771-1800 |
| 32 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 2,772 | $321,552 | $116 | premium | 5.5% | (630) 469-9200 |
| 33 | CENTRAL COAST HEAD AND NECK SURGEONS A M C INC | SALINAS | CA | OTOLARYNGOLOGY | 14 | 2,741 | $509,826 | $186 | premium | 1.4% | (408) 422-8798 |
| 34 | CENTERS FOR ADVANCED ENT CARE LLC | BETHESDA | MD | QUALIFIED AUDIOLOGIST | 102 | 2,707 | $428,180 | $158 | premium | 7.2% | (301) 652-8847 |
| 35 | WATSON CLINIC LLP | LAKELAND | FL | NURSE PRACTITIONER | 363 | 2,674 | $333,225 | $125 | premium | 1.8% | (863) 680-7780 |
| 36 | VALLEY ENT PC | SCOTTSDALE | AZ | OTOLARYNGOLOGY | 71 | 2,632 | $247,730 | $94 | premium | 11.3% | (480) 847-1193 |
| 37 | SONORAN EAR NOSE AND THROAT | TUCSON | AZ | QUALIFIED AUDIOLOGIST | 14 | 2,629 | $260,271 | $99 | premium | 11.3% | (520) 600-7970 |
| 38 | TOTAL ELDER CARE, LLC | DALLAS | TX | NURSE PRACTITIONER | 3 | 2,609 | $156,540 | $60 | premium | 4.1% | (214) 244-9452 |
| 39 | JEFFREY LEIDER MD PLLC | FT WRIGHT | KY | NURSE PRACTITIONER | 20 | 2,608 | $138,224 | $53 | premium | 16.0% | 24852821166 |
| 40 | THE ENT AND ALLERGY CENTERS OF TEXAS, PLLC | MCKINNEY | TX | OTOLARYNGOLOGY | 54 | 2,556 | $486,573 | $190 | premium | 4.0% | (972) 984-1050 |
| 41 | FLORIDA GULF COAST EAR NOSE AND THROAT LLC | NAPLES | FL | OTOLARYNGOLOGY | 12 | 2,539 | $252,575 | $99 | premium | 1.7% | (239) 514-2225 |
| 42 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 2,506 | $563,300 | $225 | premium | 2.2% | (212) 241-4812 |
| 43 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 2,489 | $764,425 | $307 | premium | 2.2% | (212) 746-5454 |
| 44 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 2,449 | $353,430 | $144 | premium | 3.8% | (732) 362-3663 |
| 45 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 2,426 | $223,387 | $92 | premium | 3.8% | — |
| 46 | PRIVIA MEDICAL GROUP, LLC | ARLINGTON | VA | NURSE PRACTITIONER | 1477 | 2,389 | $402,965 | $169 | premium | 7.3% | — |
| 47 | CARECONNECTMD CA PC | COSTA MESA | CA | NURSE PRACTITIONER | 28 | 2,373 | $230,181 | $97 | premium | 1.2% | (888) 789-9585 |
| 48 | PIH HEALTH PHYSICIANS | WHITTIER | CA | INTERNAL MEDICINE | 606 | 2,355 | $313,435 | $133 | premium | 1.2% | (562) 698-0811 |
| 49 | MID-SOUTH EAR NOSE AND THROAT PC | GERMANTOWN | TN | NURSE PRACTITIONER | 32 | 2,261 | $299,411 | $132 | premium | 12.3% | (901) 755-5300 |
| 50 | ASCENTIST PHYSICIANS GROUP LLC | LEES SUMMIT | KS | OTOLARYNGOLOGY | 104 | 2,187 | $257,187 | $118 | premium | 19.7% | (816) 478-4200 |
| 51 | BOSTON ENT ASSOCIATES PC | NEEDHAM | MA | OTOLARYNGOLOGY | 9 | 2,174 | $294,300 | $135 | premium | 5.1% | (781) 444-4722 |
| 52 | OCEAN OTOLYARNGOLOGY LLC | TOMS RIVER | NJ | QUALIFIED AUDIOLOGIST | 7 | 2,168 | $113,856 | $53 | premium | 3.4% | (732) 281-0100 |
| 53 | CV ENT SURGICAL GROUP | WEST HILLS | CA | OTOLARYNGOLOGY | 3 | 2,160 | $223,782 | $104 | premium | 1.1% | (818) 888-7878 |
| 54 | ADVOCARE, LLC | HADDONFIELD | NJ | NURSE PRACTITIONER | 384 | 2,149 | $369,036 | $172 | premium | 3.3% | (856) 354-2211 |
| 55 | HAMPTON ROADS OTOLARYNGOLOGY ASSOCIATES PLLC | HAMPTON | VA | PHYSICIAN ASSISTANT | 23 | 2,148 | $200,833 | $93 | premium | 6.6% | (757) 825-2500 |
| 56 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 2,126 | $254,429 | $120 | premium | 6.9% | (919) 684-8111 |
| 57 | JOSEPH M CAPO MD PC | LEVITTOWN | NY | OTOLARYNGOLOGY | 13 | 2,077 | $344,864 | $166 | premium | 1.9% | (516) 731-6644 |
| 58 | ADVANCED DIAGNOSTIC IMAGING PC | NASHVILLE | TN | NURSE PRACTITIONER | 534 | 2,077 | $440,522 | $212 | premium | 11.3% | (615) 612-2146 |
| 59 | CITY MEDICAL OF UPPER EAST SIDE PLLC | NEW YORK | NY | PHYSICIAN ASSISTANT | 657 | 2,066 | $305,415 | $148 | premium | 1.9% | (212) 271-4364 |
| 60 | ENT ASSOCIATES OF ALABAMA PC | BIRMINGHAM | AL | OTOLARYNGOLOGY | 43 | 2,032 | $125,842 | $62 | premium | 17.3% | (205) 212-3540 |
| 61 | UNIVERSITY OTOLARYNGOLOGISTS INC | COLUMBUS | OH | OTOLARYNGOLOGY | 58 | 2,013 | $192,457 | $96 | premium | 5.3% | (614) 538-2424 |
| 62 | PROVIDENCE SAINT JOHNS MEDICAL FOUNDATION | SANTA MONICA | CA | PHYSICIAN ASSISTANT | 287 | 2,006 | $469,404 | $234 | premium | 1.0% | (310) 829-6789 |
| 63 | ENT AND ALLERGY OF DELAWARE LLC | NEWARK | DE | OTOLARYNGOLOGY | 42 | 2,002 | $240,381 | $120 | premium | 30.6% | (302) 998-0300 |
| 64 | ALBANY MEDICAL COLLEGE | ALBANY | NY | PHYSICIAN ASSISTANT | 1070 | 1,944 | $282,025 | $145 | premium | 1.7% | (518) 262-3277 |
| 65 | PROLIANCE SURGEONS INC P S | ISSAQUAH | WA | PHYSICIAN ASSISTANT | 395 | 1,892 | $310,014 | $164 | premium | 8.8% | (425) 313-5422 |
| 66 | AURORA MEDICAL GROUP, INC. | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 3696 | 1,862 | $618,025 | $332 | premium | 12.3% | (414) 421-8400 |
| 67 | ALBANY ENT AND ALLERGY SERVICES PC | ALBANY | NY | PHYSICIAN ASSISTANT | 48 | 1,833 | $247,000 | $135 | premium | 1.6% | (518) 701-2000 |
| 68 | ATRIUS HEALTH INC | BOSTON | MA | NURSE PRACTITIONER | 1196 | 1,819 | $240,240 | $132 | premium | 4.3% | (617) 421-1000 |
| 69 | THE EAR NOSE AND THROAT SURGICAL ASSOCIATES PA | ORLANDO | FL | PHYSICIAN ASSISTANT | 46 | 1,812 | $258,813 | $143 | premium | 1.2% | (407) 644-4883 |
| 70 | OKLAHOMA OTOLARYNGOLOGY ASSOCIATES LLC | NORMAN | OK | OTOLARYNGOLOGY | 15 | 1,802 | $180,666 | $100 | premium | 17.2% | (405) 364-2666 |
| 71 | UNIVERSITY HEALTHCARE ALLIANCE | PLEASANTON | CA | INTERNAL MEDICINE | 332 | 1,801 | $348,020 | $193 | premium | 0.9% | (925) 462-7060 |
| 72 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 1,783 | $411,232 | $231 | premium | 0.9% | (310) 423-0674 |
| 73 | LAKE ENT AND FPS, PA | LEESBURG | FL | NURSE PRACTITIONER | 9 | 1,752 | $175,200 | $100 | premium | 1.2% | (352) 728-2404 |
| 74 | ASSOCIATES IN OTOLARYNGOLOGY OF NJ, LLC | WEST ORANGE | NJ | QUALIFIED AUDIOLOGIST | 14 | 1,735 | $260,250 | $150 | premium | 2.7% | (973) 243-0600 |
| 75 | UROLOGY OF ST LOUIS INC | SAINT LOUIS | MO | UROLOGY | 112 | 1,713 | $288,357 | $168 | premium | 8.3% | (314) 567-6071 |
| 76 | EAR NOSE AND THROAT AND FACIAL PLASTIC SURGERY CENTER OF FREDERICK | FREDERICKSBURG | VA | OTOLARYNGOLOGY | 11 | 1,683 | $260,865 | $155 | premium | 5.1% | (540) 371-1226 |
| 77 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 1,679 | $306,925 | $183 | premium | 0.9% | (858) 455-9100 |
| 78 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 1,677 | $277,198 | $165 | premium | 3.3% | — |
| 79 | MEDICAL ASSOCIATES OF ENGLEWOOD PC | ENGLEWOOD | NJ | INTERNAL MEDICINE | 550 | 1,658 | $274,395 | $165 | premium | 2.6% | (201) 894-3158 |
| 80 | SACRAMENTO EAR NOSE AND THROAT SURGICAL AND MEDICAL GROUP INC | SACRAMENTO | CA | OTOLARYNGOLOGY | 34 | 1,653 | $273,450 | $165 | premium | 0.9% | (916) 736-3399 |
| 81 | MICHIGAN EAR INSTITUTE PLLC | FARMINGTON HILLS | MI | QUALIFIED AUDIOLOGIST | 36 | 1,643 | $196,280 | $119 | premium | 6.1% | (248) 865-4444 |
| 82 | VANDERBILT UNIVERSITY MEDICAL CENTER | NASHVILLE | TN | NURSE PRACTITIONER | 3394 | 1,606 | $308,210 | $192 | premium | 8.7% | (615) 322-5000 |
| 83 | PIEDMONT EAR, NOSE AND THROAT ASSOCIATES, P.A. | WINSTON SALEM | NC | OTOLARYNGOLOGY | 28 | 1,588 | $298,197 | $188 | premium | 5.1% | (336) 768-3361 |
| 84 | PINNACLE ENT ALLIANCE LLC | HAVERTOWN | PA | QUALIFIED AUDIOLOGIST | 67 | 1,579 | $173,185 | $110 | premium | 2.5% | 6104466900230 |
| 85 | FRANCISCAN MEDICAL GROUP | TACOMA | WA | PHYSICIAN ASSISTANT | 1407 | 1,578 | $220,755 | $140 | premium | 7.3% | (253) 428-2200 |
| 86 | SHOHET EAR ASSOCIATES MEDICAL GROUP INC | NEWPORT BEACH | CA | QUALIFIED AUDIOLOGIST | 11 | 1,573 | $125,190 | $80 | premium | 0.8% | (949) 631-4327 |
| 87 | EAR, NOSE, AND THROAT ASSOCIATES OF MANATEE, PA | BRADENTON | FL | OTOLARYNGOLOGY | 11 | 1,562 | $151,220 | $97 | premium | 1.0% | (941) 748-2455 |
| 88 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | OTOLARYNGOLOGY | 34 | 1,554 | $501,684 | $323 | premium | 0.8% | (310) 794-1110 |
| 89 | EAR, NOSE, AND THROAT SPECIALIST- CHEROKEE SINUS CENTER | CANTON | GA | NURSE PRACTITIONER | 11 | 1,549 | $201,524 | $130 | premium | 6.4% | (770) 345-6600 |
| 90 | SOUTHSHORE OTOLARYNGOLOGY PC | ROCKVILLE CENTRE | NY | OTOLARYNGOLOGY | 3 | 1,548 | $218,603 | $141 | premium | 1.4% | 516678030318 |
| 91 | COASTAL CAROLINA OTOLARYNGOLOGY ASSOCIATES, PA | MYRTLE BEACH | SC | OTOLARYNGOLOGY | 7 | 1,545 | $83,931 | $54 | premium | 5.0% | (843) 449-6449 |
| 92 | FLORENCE EARS NOSE AND THROAT PC | FLORENCE | SC | OTOLARYNGOLOGY | 4 | 1,533 | $134,787 | $88 | premium | 5.0% | (843) 665-2900 |
| 93 | THE IOWA CLINIC PC | WEST DES MOINES | IA | PHYSICIAN ASSISTANT | 302 | 1,524 | $213,360 | $140 | premium | 10.6% | (515) 343-1000 |
| 94 | TRIHEALTH H LLC | CINCINNATI | OH | OBSTETRICS/GYNECOLOGY | 853 | 1,522 | $206,004 | $135 | premium | 4.0% | (513) 246-7000 |
| 95 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 1,514 | $332,955 | $220 | premium | 0.8% | (650) 723-4000 |
| 96 | DRS. GIRGIS AND ASSOCIATES, S.C. | HINSDALE | IL | QUALIFIED AUDIOLOGIST | 11 | 1,496 | $348,127 | $233 | premium | 3.0% | (630) 323-6400 |
| 97 | PUBLIC HOSPITAL DIST NO 1 SKAGIT | MOUNT VERNON | WA | PHYSICIAN ASSISTANT | 314 | 1,476 | $120,032 | $81 | premium | 6.8% | (360) 428-2500 |
| 98 | UNIVERSITY PRIMARY CARE PRACTICES INC | CONNEAUT | OH | FAMILY PRACTICE | 1067 | 1,474 | $124,424 | $84 | premium | 3.9% | — |
| 99 | MICHAEL BUBLIK MD PC | GLENDALE | CA | OTOLARYNGOLOGY | 2 | 1,472 | $179,584 | $122 | premium | 0.8% | (818) 649-1433 |
| 100 | EAR, NOSE AND THROAT CONSULTANTS OF NEVADA | HENDERSON | NV | OTOLARYNGOLOGY | 15 | 1,466 | $159,473 | $109 | premium | 27.2% | (702) 792-6700 |
Showing the top 100 of 3,009 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 →