95,846 observed fee-for-service (49%) · ~98,639 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 | J1040 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 | ARTHRITIS CLINIC INC | BROOKSVILLE | FL | RHEUMATOLOGY | 2 | 2,061 | $412,200 | $200 | premium | 8.4% | (352) 596-6333 |
| 2 | MACON ORTHOPAEDIC AND HAND CENTER, PA | MACON | GA | NURSE PRACTITIONER | 87 | 1,903 | $76,631 | $40 | premium | 23.0% | (478) 745-4206 |
| 3 | WEST TENNESSEE BONE AND JOINT CLINIC PC | JACKSON | TN | ORTHOPEDIC SURGERY | 60 | 1,554 | $65,268 | $42 | premium | 20.1% | (731) 661-9825 |
| 4 | THE CENTER FOR PAIN OF MONTGOMERY LLC | MONTGOMERY | AL | NURSE PRACTITIONER | 50 | 1,204 | $60,200 | $50 | premium | 23.5% | (334) 288-7808 |
| 5 | CARROLLTON ORTHOPAEDIC CLINIC PC | CARROLLTON | GA | ORTHOPEDIC SURGERY | 33 | 1,135 | $22,700 | $20 | premium | 13.7% | (770) 834-0873 |
| 6 | SYRACUSE ORTHOPEDIC SPECIALISTS, PLLC | SYRACUSE | NY | PHYSICIAN ASSISTANT | 115 | 1,073 | $32,180 | $30 | premium | 16.2% | (315) 448-5111 |
| 7 | TRUE NORTH MEDICAL GROUP PC | ROCKVILLE CENTRE | NY | PHYSICIAN ASSISTANT | 182 | 993 | $38,727 | $39 | premium | 15.0% | (516) 536-2800 |
| 8 | SEAVIEW ORTHOPAEDICS AND MEDICAL ASSOCIATES LLP | OCEAN | NJ | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 96 | 963 | $24,075 | $25 | premium | 16.5% | 732660620011702 |
| 9 | CORA HEALTH SERVICES INC | THE VILLAGES | FL | ORTHOPEDIC SURGERY | 1187 | 930 | $29,525 | $32 | premium | 3.8% | (352) 693-3378 |
| 10 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 794 | $20,644 | $26 | premium | 12.0% | (803) 749-5101 |
| 11 | ORTHO FLORIDA LLC | BOCA RATON | FL | ORTHOPEDIC SURGERY | 112 | 781 | $57,013 | $73 | premium | 3.2% | (954) 964-6114 |
| 12 | ORTHOWEST, LLC | OMAHA | NE | PHYSICIAN ASSISTANT | 110 | 703 | $16,968 | $24 | premium | 24.9% | (402) 609-3000 |
| 13 | CHATTANOOGA ORTHOPAEDIC GROUP, PC | CHATTANOOGA | TN | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 72 | 692 | $10,380 | $15 | premium | 9.0% | (423) 624-2696 |
| 14 | ORTHOPAEDICS-INDIANAPOLIS, INC | INDIANAPOLIS | IN | ORTHOPEDIC SURGERY | 348 | 680 | $27,200 | $40 | premium | 16.9% | (317) 802-2000 |
| 15 | BIENVILLE ORTHOPAEDIC SPECIALISTS, LLC | VANCLEAVE | MS | ORTHOPEDIC SURGERY | 42 | 662 | $39,690 | $60 | premium | 19.0% | (228) 230-2663 |
| 16 | THE COLUMBUS ORTHOPAEDIC CLINIC, P.A. | COLUMBUS | MS | NURSE PRACTITIONER | 47 | 656 | $31,505 | $48 | premium | 18.9% | (662) 328-1012 |
| 17 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 650 | $25,350 | $39 | premium | 9.8% | — |
| 18 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 608 | $14,592 | $24 | premium | 10.4% | (908) 273-4300 |
| 19 | FOX VALLEY ORTHOPAEDIC ASSOCIATES PLLC | GENEVA | IL | PHYSICIAN ASSISTANT | 72 | 603 | $24,120 | $40 | premium | 12.3% | (847) 468-1400 |
| 20 | GRANITE ORTHOPAEDICS PLLC | PRESCOTT | AZ | PHYSICIAN ASSISTANT | 12 | 584 | $11,452 | $20 | premium | 20.2% | (928) 777-9950 |
| 21 | HUNTERDON ORTHOPEDIC INSTITUTE PA | FLEMINGTON | NJ | ORTHOPEDIC SURGERY | 24 | 575 | $9,216 | $16 | premium | 9.8% | (908) 782-0600 |
| 22 | OLYMPIA ORTHOPAEDIC ASSOCIATES PLLC | OLYMPIA | WA | PHYSICIAN ASSISTANT | 109 | 574 | $14,867 | $26 | premium | 32.6% | — |
| 23 | ORTHOPEDIC SPECIALISTS OF NORTH AMERICA PLLC | SCOTTSDALE | AZ | ORTHOPEDIC SURGERY | 308 | 560 | $14,000 | $25 | premium | 19.3% | (602) 385-2115 |
| 24 | CAMPBELL CLINIC, PC | GERMANTOWN | TN | ORTHOPEDIC SURGERY | 225 | 554 | $43,212 | $78 | premium | 7.2% | (901) 759-3100 |
| 25 | CENTER FOR ORTHOPEDIC SURGERY L.L.P. | LUBBOCK | TX | ORTHOPEDIC SURGERY | 13 | 534 | $10,680 | $20 | premium | 3.9% | (806) 797-4985 |
| 26 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 525 | $25,814 | $49 | premium | 6.9% | (858) 455-9100 |
| 27 | BLACK HILLS ORTHOPEDIC AND SPINE CENTER INC | RAPID CITY | SD | PHYSICIAN ASSISTANT | 76 | 508 | $19,851 | $39 | premium | 63.7% | (605) 737-9151 |
| 28 | ORTHONJ LLC | MANASQUAN | NJ | PHYSICIAN ASSISTANT | 300 | 507 | $15,210 | $30 | premium | 8.7% | (732) 974-0404 |
| 29 | SPORTSMED ORTHOPAEDIC SPECIALISTS | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 86 | 498 | $22,410 | $45 | premium | 9.7% | — |
| 30 | ORTHOPAEDIC INSTITUTE OF OHIO, INC | LIMA | OH | PHYSICIAN ASSISTANT | 75 | 496 | $34,600 | $70 | premium | 20.5% | (419) 222-6622 |
| 31 | SW FLORIDA PAIN CENTER INC. | PORT CHARLOTTE | FL | NURSE PRACTITIONER | 3 | 491 | $27,005 | $55 | premium | 2.0% | (941) 627-9095 |
| 32 | OSF MULTI-SPECIALTY GROUP | PEORIA | IL | NURSE PRACTITIONER | 2091 | 484 | $19,324 | $40 | premium | 9.9% | (309) 683-5050 |
| 33 | CAROLINA ARTHRITIS CENTER PA | GREENVILLE | NC | NURSE PRACTITIONER | 5 | 479 | $21,076 | $44 | premium | 15.8% | (252) 321-8474 |
| 34 | NOVASPINE PAIN INSTITUTE PLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 20 | 464 | $16,704 | $36 | premium | 16.0% | (623) 777-4747 |
| 35 | FAIRVIEW HEIGHTS MEDICAL GROUP SC | SHILOH | IL | NURSE PRACTITIONER | 445 | 440 | $9,680 | $22 | premium | 9.0% | (618) 236-8000 |
| 36 | KANSAS CITY PHYSICIAN PARTNERS INC | KANSAS CITY | MO | RHEUMATOLOGY | 16 | 438 | $19,154 | $44 | premium | 12.3% | (913) 258-2116 |
| 37 | COASTAL ORTHOPAEDICS AND SPORTS MEDICINE CENTER | PORT SAINT LUCIE | FL | ORTHOPEDIC SURGERY | 15 | 435 | $13,050 | $30 | premium | 1.8% | 77233553002015 |
| 38 | TALLAHASSEE ORTHOPEDIC CLINIC III PL | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 542 | 434 | $17,170 | $40 | premium | 1.8% | (850) 877-8174 |
| 39 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 413 | $12,390 | $30 | premium | 3.0% | (214) 220-2468 |
| 40 | NORTHWEST ORTHOPAEDIC SPECIALISTS PS | SPOKANE | WA | PHYSICIAN ASSISTANT | 80 | 411 | $9,495 | $23 | premium | 23.4% | (509) 465-1300 |
| 41 | PCCC OF VOLUSIA LLC | NEW SMYRNA BEACH | FL | NURSE PRACTITIONER | 13 | 407 | $10,582 | $26 | premium | 1.7% | (386) 423-0505 |
| 42 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 405 | $14,985 | $37 | premium | 5.3% | (916) 681-8852 |
| 43 | ORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C. | NORTH CHELMSFORD | MA | ORTHOPEDIC SURGERY | 43 | 402 | $16,032 | $40 | premium | 18.0% | (978) 454-0706 |
| 44 | ANESTHESIA AND PAIN PHYSICIANS OF FLORIDA, PA | BRADENTON | FL | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 25 | 400 | $20,576 | $51 | premium | 1.6% | 9417059555110 |
| 45 | CEDAR VALLEY MEDICAL SPECIALISTS PC | WATERLOO | IA | NURSE PRACTITIONER | 83 | 394 | $7,800 | $20 | premium | 17.3% | — |
| 46 | DEAN HEALTH SYSTEMS INC | MADISON | WI | PHYSICIAN ASSISTANT | 1200 | 384 | $29,952 | $78 | premium | 24.9% | (608) 260-2900 |
| 47 | ARTHRITIS AND RHEUMATOLOGY ASSOCIATES OF SOUTH JERSEY PC | VINELAND | NJ | RHEUMATOLOGY | 5 | 380 | $9,500 | $25 | premium | 6.5% | (856) 749-9090 |
| 48 | IHA HEALTH SERVICES CORPORATION | YPSILANTI | MI | PHYSICIAN ASSISTANT | 1144 | 379 | $8,717 | $23 | premium | 10.7% | — |
| 49 | RESTORE MEDICAL PARTNERS PLLC | VENICE | FL | NURSE PRACTITIONER | 15 | 369 | $11,070 | $30 | premium | 1.5% | (941) 375-3006 |
| 50 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 366 | $8,959 | $24 | premium | 7.8% | (502) 928-1050 |
| 51 | RESTORATION HEALTH OF SOUTH ALABAMA INC | SPANISH FORT | AL | NURSE PRACTITIONER | 8 | 365 | $8,022 | $22 | premium | 7.1% | (251) 626-0732 |
| 52 | BEACON ORTHOPAEDICS AND SPORTS MEDICINE LTD | CINCINNATI | OH | PHYSICIAN ASSISTANT | 468 | 365 | $7,300 | $20 | premium | 15.1% | (513) 354-3700 |
| 53 | YEE ADVANCED ORTHOPEDICS AND SPORTS MEDICINE PC | LAS VEGAS | NV | PHYSICIAN ASSISTANT | 22 | 362 | $12,670 | $35 | premium | 42.2% | (702) 740-5327 |
| 54 | RAMIN GANJIANPOUR MD INC | MISSION HILLS | CA | PHYSICIAN ASSISTANT | 4 | 362 | $7,250 | $20 | premium | 4.8% | (818) 361-0136 |
| 55 | THE ORTHOPAEDIC CLINIC, P.C. | OPELIKA | AL | ORTHOPEDIC SURGERY | 14 | 362 | $13,032 | $36 | premium | 7.1% | (334) 749-8303 |
| 56 | MERCY CLINIC SPRINGFIELD COMMUNITIES | SPRINGFIELD | MO | PHYSICIAN ASSISTANT | 1128 | 359 | $7,539 | $21 | premium | 10.1% | — |
| 57 | TRISTATE ARTHRITIS AND RHEUMATOLOGY PSC | CRESTVIEW HILLS | KY | RHEUMATOLOGY | 9 | 352 | $7,744 | $22 | premium | 7.5% | (859) 331-3100 |
| 58 | SOUTH FLORIDA ORTHOPAEDICS AND SPORTS MEDICINE, PA | STUART | FL | PHYSICIAN ASSISTANT | 71 | 349 | $23,383 | $67 | premium | 1.4% | — |
| 59 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 333 | $3,627 | $11 | premium | 5.0% | (914) 241-1050 |
| 60 | ORTHOWEST, LLC | OMAHA | IA | PHYSICIAN ASSISTANT | 110 | 331 | $7,944 | $24 | premium | 14.6% | (402) 609-3000 |
| 61 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 331 | $8,606 | $26 | premium | 5.0% | — |
| 62 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 331 | $4,965 | $15 | premium | 6.7% | (630) 469-9200 |
| 63 | ORTHOPEDIC AND SPORTS MEDICINE CENTER LLC | SAINT JOSEPH | MO | ORTHOPEDIC SURGERY | 21 | 325 | $10,156 | $31 | premium | 9.1% | (816) 233-9888 |
| 64 | CENTER FOR BONE AND JOINT SURGERY OF THE PALM BEACHES, P.A. | WELLINGTON | FL | PHYSICIAN ASSISTANT | 27 | 321 | $11,761 | $37 | premium | 1.3% | (561) 803-8616 |
| 65 | EXCELA HEALTH PHYSICIAN PRACTICES, INC | GREENSBURG | PA | PHYSICIAN ASSISTANT | 470 | 312 | $6,240 | $20 | premium | 6.8% | (724) 261-5610 |
| 66 | SPECIALTY ORTHOPEDIC GROUP OF MS, PLLC | TUPELO | MS | ORTHOPEDIC SURGERY | 41 | 308 | $14,883 | $48 | premium | 8.9% | (662) 767-4200 |
| 67 | ILLINOIS BONE AND JOINT INSTITUTE, LLC | BANNOCKBURN | IL | ORTHOPEDIC SURGERY | 595 | 305 | $7,725 | $25 | premium | 6.2% | — |
| 68 | SAN BERNARDINO MEDICAL ORTHOPAEDIC GROUP INC | REDLANDS | CA | PHYSICIAN ASSISTANT | 88 | 302 | $9,060 | $30 | premium | 4.0% | (909) 557-1600 |
| 69 | SUMMIT ORTHOPEDICS, LTD | SAINT PAUL | MN | PHYSICIAN ASSISTANT | 271 | 296 | $7,104 | $24 | premium | 40.8% | (651) 968-5201 |
| 70 | WHITE RIVER HEALTH SYSTEM, INC. | BATESVILLE | AR | NURSE PRACTITIONER | 180 | 293 | $32,746 | $112 | premium | 9.1% | (870) 793-7519 |
| 71 | ARCIS HEALTHCARE LLC | NORTH CHARLESTON | SC | PHYSICIAN ASSISTANT | 33 | 282 | $14,946 | $53 | premium | 4.3% | (843) 797-5050 |
| 72 | CRYSTAL RUN HEALTHCARE PHYSICIANS LLP | MIDDLETOWN | NY | NURSE PRACTITIONER | 372 | 274 | $10,960 | $40 | premium | 4.1% | (845) 703-6999 |
| 73 | MOBILE ANESTHESIA ASSOCIATES LLC | WINTER HAVEN | FL | PHYSICIAN ASSISTANT | 45 | 270 | $42,758 | $158 | premium | 1.1% | (863) 291-4000 |
| 74 | RESURGENS, LLC | ATLANTA | GA | ORTHOPEDIC SURGERY | 172 | 265 | $14,045 | $53 | premium | 3.2% | (404) 847-9999 |
| 75 | HARTSVILLE MEDICAL GROUP LLC | HARTSVILLE | SC | DIAGNOSTIC RADIOLOGY | 63 | 260 | $6,500 | $25 | premium | 3.9% | — |
| 76 | CHI HEALTH CLINIC SPECIALTY LLC | LINCOLN | NE | NURSE PRACTITIONER | 309 | 260 | $7,280 | $28 | premium | 9.2% | (402) 219-8000 |
| 77 | TEXAS ARTHRITIS AND RHEUMATOLOGY | TYLER | TX | PHYSICIAN ASSISTANT | 5 | 252 | $6,300 | $25 | premium | 1.8% | (903) 561-9255 |
| 78 | GUTHRIE MEDICAL GROUP PC | SAYRE | PA | PHYSICIAN ASSISTANT | 804 | 249 | $10,209 | $41 | premium | 5.4% | (570) 888-5858 |
| 79 | UNION GENERAL AFFILIATED SERVICES, LLC | BLAIRSVILLE | GA | PHYSICIAN ASSISTANT | 19 | 249 | $22,410 | $90 | premium | 3.0% | (706) 745-3333 |
| 80 | TIMOTHY D. GROTH MD PC | SMITHTOWN | NY | PHYSICIAN ASSISTANT | 42 | 248 | $8,623 | $35 | premium | 3.7% | (631) 543-1440 |
| 81 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 247 | $12,222 | $49 | premium | 7.7% | (501) 686-8000 |
| 82 | MISSOULA BONE AND JOINT LLC | MISSOULA | MT | PHYSICIAN ASSISTANT | 55 | 247 | $7,440 | $30 | premium | 32.1% | (406) 721-4436 |
| 83 | CENTER FOR ORTHOPAEDICS AND SPINE LLC | LAKE CHARLES | LA | NURSE PRACTITIONER | 32 | 246 | $8,856 | $36 | premium | 9.9% | (337) 721-7236 |
| 84 | EMERGEORTHO PA | DURHAM | NC | PHYSICIAN ASSISTANT | 725 | 246 | $7,658 | $31 | premium | 8.1% | (919) 544-7270 |
| 85 | HILTON HEAD REGIONAL PHYSICIAN GROUP LLC | BLUFFTON | SC | PHYSICIAN ASSISTANT | 106 | 245 | $4,268 | $17 | premium | 3.7% | (843) 682-7480 |
| 86 | NORTHEAST ORTHOPAEDIC ALLIANCE PLLC | CONCORD | NH | PHYSICIAN ASSISTANT | 268 | 242 | $6,776 | $28 | premium | 34.9% | (603) 883-0091 |
| 87 | TULSA BONE AND JOINT ASSOCIATES PC | TULSA | OK | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 92 | 239 | $5,301 | $22 | premium | 7.0% | (918) 392-1513 |
| 88 | KENTUCKYONE HEALTH MEDICAL GROUP INC | LEXINGTON | KY | PHYSICIAN ASSISTANT | 245 | 238 | $5,712 | $24 | premium | 5.0% | (859) 276-4429 |
| 89 | PENINSULA ORTHOPEDIC ASSOCIATES INC | DALY CITY | CA | ORTHOPEDIC SURGERY | 18 | 231 | $4,620 | $20 | premium | 3.0% | (650) 756-5630 |
| 90 | HEALTH FIRST MEDICAL GROUP, LLC | MELBOURNE | FL | NURSE PRACTITIONER | 669 | 231 | $5,775 | $25 | premium | 0.9% | (321) 434-8878 |
| 91 | S.B.J.S. PC | DOTHAN | AL | PHYSICIAN ASSISTANT | 39 | 230 | $5,060 | $22 | premium | 4.5% | (334) 793-2663 |
| 92 | PROMEDICA CENTRAL PHYSICIANS | TOLEDO | OH | PHYSICIAN ASSISTANT | 794 | 229 | $8,244 | $36 | premium | 9.5% | (419) 291-2003 |
| 93 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 228 | $7,148 | $31 | premium | 3.4% | (803) 744-4900 |
| 94 | ORTHOPAEDICS NORTHEAST PC | FORT WAYNE | IN | PHYSICIAN ASSISTANT | 80 | 224 | $9,408 | $42 | premium | 5.6% | (260) 484-8551 |
| 95 | TEXAS STAR ORTHOPEDIC INSTITUTE LLC | PLANO | TX | ORTHOPEDIC SURGERY | 23 | 221 | $5,967 | $27 | premium | 1.6% | (972) 250-5700 |
| 96 | BON SECOURS MEDICAL GROUP RICHMOND SPECIALTY CARE LLC | RICHMOND | VA | NURSE PRACTITIONER | 352 | 219 | $4,380 | $20 | premium | 14.3% | (804) 764-6000 |
| 97 | STILLWATER MEDICAL CENTER AUTHORITY | STILLWATER | OK | PHYSICIAN ASSISTANT | 166 | 218 | $6,540 | $30 | premium | 6.4% | (405) 372-1480 |
| 98 | MIDLANDS ORTHOPAEDICS AND NEUROSURGERY PA | COLUMBIA | SC | PHYSICIAN ASSISTANT | 42 | 215 | $2,150 | $10 | premium | 3.2% | (803) 256-4107 |
| 99 | ST LOUIS PAIN CONSULTANTS LLC | SAINT LOUIS | MO | PHYSICIAN ASSISTANT | 5 | 209 | $8,360 | $40 | premium | 5.9% | (314) 205-3146 |
| 100 | MCLEOD PHYSICIAN ASSOCIATES II | FLORENCE | SC | PHYSICIAN ASSISTANT | 534 | 205 | $4,305 | $21 | premium | 3.1% | — |
Showing the top 100 of 1,036 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 →