11,286 observed fee-for-service (50%) · ~11,448 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 | 22845 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 | HH HEALTH SYSTEM - THE ORTHOPAEDIC CENTER LLC | HUNTSVILLE | AL | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 175 | 234 | $578,462 | $2,472 | premium | 23.5% | (256) 539-2728 |
| 2 | ARLINGTON NEUROSURGEONS, PLLC | PLANO | TX | PHYSICIAN ASSISTANT | 46 | 209 | $497,639 | $2,381 | premium | 12.6% | (972) 596-6800 |
| 3 | TOWN CENTER ORTHOPAEDIC ASSOCIATES P C | RESTON | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 56 | 190 | $371,000 | $1,953 | premium | 19.3% | (703) 435-6604 |
| 4 | DIAGNOSTIC AND INTERVENTIONAL SPINAL CARE OF LOUISIANA | COVINGTON | LA | PHYSICIAN ASSISTANT | 10 | 167 | $657,250 | $3,936 | premium | 32.6% | — |
| 5 | ORTHOVIRGINIA INC | NORTH CHESTERFIELD | VA | PHYSICIAN ASSISTANT | 567 | 138 | $330,087 | $2,392 | premium | 14.0% | — |
| 6 | FORT WORTH BRAIN AND SPINE INSTITUTE, LLP | FORT WORTH | TX | NEUROSURGERY | 11 | 137 | $216,597 | $1,581 | premium | 8.3% | (817) 878-5333 |
| 7 | SPORTSMED ORTHOPAEDIC SPECIALISTS | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 86 | 136 | $238,450 | $1,753 | premium | 13.7% | — |
| 8 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 133 | $194,153 | $1,460 | premium | 8.0% | (214) 220-2468 |
| 9 | LYERLY BAPTIST INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 68 | 128 | $127,797 | $998 | premium | 8.5% | (904) 388-6518 |
| 10 | HUNTSMAN WEST SPINE LLC | ST GEORGE | UT | NURSE PRACTITIONER | 7 | 126 | $133,006 | $1,056 | premium | 63.0% | (435) 652-6024 |
| 11 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 124 | $238,954 | $1,927 | premium | 8.7% | (858) 455-9100 |
| 12 | BETHESDA CHEVY CHASE ORTHOPAEDIC ASSOCIATES, LLC | BETHESDA | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 135 | 120 | $483,673 | $4,031 | premium | 12.2% | (301) 530-1010 |
| 13 | SAINTS MEDICAL GROUP, LLC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 435 | 118 | $181,366 | $1,537 | premium | 30.1% | — |
| 14 | DELAWARE NEUROSURGICAL GROUP, PA | NEWARK | DE | PHYSICIAN ASSISTANT | 24 | 111 | $303,119 | $2,731 | premium | 44.8% | (302) 366-7671 |
| 15 | MIDLANDS ORTHOPAEDICS AND NEUROSURGERY PA | COLUMBIA | SC | PHYSICIAN ASSISTANT | 42 | 110 | $136,790 | $1,244 | premium | 19.1% | (803) 256-4107 |
| 16 | SSM REGIONAL HEALTH SERVICES | JEFFERSON CITY | MO | NURSE PRACTITIONER | 160 | 106 | $183,175 | $1,728 | premium | 22.0% | (573) 681-3249 |
| 17 | DESERT INSTITUTE FOR SPINE CARE PC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 12 | 105 | $439,446 | $4,185 | premium | 22.5% | (602) 944-2900 |
| 18 | HUGHSTON CLINIC PC | COLUMBUS | GA | ORTHOPEDIC SURGERY | 118 | 102 | $373,266 | $3,659 | premium | 13.4% | (706) 494-3434 |
| 19 | JAMES J LYNCH MD LTD | CARSON CITY | NV | PHYSICIAN ASSISTANT | 84 | 98 | $731,960 | $7,469 | premium | 33.2% | (775) 783-6190 |
| 20 | NEUROSCIENCE SPECIALISTS PC | OKLAHOMA CITY | OK | NEUROSURGERY | 16 | 96 | $483,750 | $5,039 | premium | 24.5% | (405) 748-3300 |
| 21 | KADLEC REGIONAL MEDICAL CENTER | RICHLAND | WA | PHYSICIAN ASSISTANT | 382 | 93 | $204,633 | $2,200 | premium | 30.3% | (509) 946-4611 |
| 22 | NEWSOUTH NEUROSPINE, LLC | FLOWOOD | MS | NEUROSURGERY | 22 | 91 | $332,000 | $3,648 | premium | 28.0% | (601) 983-2859 |
| 23 | NEUROSURGICAL ASSOCIATES, P. C. | BIRMINGHAM | AL | NEUROSURGERY | 10 | 90 | $165,240 | $1,836 | premium | 9.0% | 20593389811810 |
| 24 | NEUROSURGICAL ASSOCIATES LTD | PHOENIX | AZ | NEUROSURGERY | 74 | 89 | $215,688 | $2,423 | premium | 19.1% | (602) 406-3181 |
| 25 | SPINE CENTER LLC | BATON ROUGE | LA | PHYSICIAN ASSISTANT | 17 | 89 | $475,210 | $5,339 | premium | 17.4% | (833) 774-6327 |
| 26 | ABAY NEUROSCIENCE CENTER LLC | WICHITA | KS | NURSE PRACTITIONER | 16 | 88 | $231,525 | $2,631 | premium | 47.8% | (316) 609-2600 |
| 27 | HEALTH FIRST MEDICAL GROUP, LLC | MELBOURNE | FL | NURSE PRACTITIONER | 669 | 86 | $97,480 | $1,133 | premium | 5.7% | (321) 434-8878 |
| 28 | ROPER SAINT FRANCIS PHYSICIANS NETWORK | CHARLESTON | SC | PHYSICIAN ASSISTANT | 539 | 84 | $194,628 | $2,317 | premium | 14.6% | (843) 720-8448 |
| 29 | SANTA ROSA ORTHOPAEDIC MEDICAL GROUP, INC. | SANTA ROSA | CA | ORTHOPEDIC SURGERY | 8 | 84 | $147,645 | $1,758 | premium | 5.9% | 70754619225507 |
| 30 | HEINRICH-JOSEY ORTHOPAEDICS | AUSTIN | TX | PHYSICIAN ASSISTANT | 22 | 82 | $377,200 | $4,600 | premium | 4.9% | (512) 476-2830 |
| 31 | ADVANCED DIAGNOSTIC IMAGING PC | NASHVILLE | TN | NURSE PRACTITIONER | 534 | 79 | $178,888 | $2,264 | premium | 12.8% | (615) 612-2146 |
| 32 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 74 | $460,149 | $6,218 | premium | 5.2% | (916) 983-7476 |
| 33 | MISSISSIPPI SPORTS MEDICINE AND ORTHOPAEDIC CENTER | JACKSON | MS | ORTHOPEDIC SURGERY | 75 | 74 | $175,960 | $2,378 | premium | 22.8% | (601) 354-4488 |
| 34 | ADVENTIST HEALTH SYSTEM GEORGIA INC | CALHOUN | GA | NURSE PRACTITIONER | 229 | 74 | $110,681 | $1,496 | premium | 9.7% | — |
| 35 | SPINE DFW PA | IRVING | TX | ORTHOPEDIC SURGERY | 5 | 74 | $129,393 | $1,749 | premium | 4.5% | (972) 987-0969 |
| 36 | RIVERSIDE PHYSICIAN SERVICES INC | NEWPORT NEWS | VA | PHYSICIAN ASSISTANT | 793 | 71 | $85,000 | $1,197 | premium | 7.2% | — |
| 37 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 70 | $171,800 | $2,454 | premium | 4.9% | — |
| 38 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 70 | $124,156 | $1,774 | premium | 35.2% | — |
| 39 | NOVANT HEALTH SOUTHEASTERN SPINE INSTITUTE LLC | MT PLEASANT | SC | PHYSICIAN ASSISTANT | 29 | 70 | $90,462 | $1,292 | premium | 12.1% | — |
| 40 | ARCH HEALTH PARTNERS INC | POWAY | CA | PHYSICIAN ASSISTANT | 161 | 69 | $126,560 | $1,834 | premium | 4.9% | (858) 485-0050 |
| 41 | ORTHOPAEDIC SPECIALTY INSTITUTE MEDICAL GROUP OF ORANGE COUNTY | ORANGE | CA | PHYSICIAN ASSISTANT | 58 | 69 | $169,200 | $2,452 | premium | 4.9% | (714) 634-4567 |
| 42 | ATLANTIC BRAIN AND SPINE, P.A. | WILMINGTON | NC | PHYSICIAN ASSISTANT | 20 | 69 | $271,063 | $3,928 | premium | 11.4% | (910) 763-3333 |
| 43 | VIRGINIA SPINE SPECIALISTS PLLC | MANASSAS | VA | PHYSICIAN ASSISTANT | 4 | 67 | $123,365 | $1,841 | premium | 6.8% | (571) 921-4877 |
| 44 | STRENGE SPINE CENTER PLLC | PADUCAH | KY | PHYSICIAN ASSISTANT | 3 | 66 | $223,209 | $3,382 | premium | 43.7% | (270) 228-3973 |
| 45 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 62 | $101,990 | $1,645 | premium | 10.1% | (615) 269-4545 |
| 46 | HOUMA ORTHOPEDIC CLINIC AMC | HOUMA | LA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 24 | 60 | $294,200 | $4,903 | premium | 11.7% | (985) 868-1540 |
| 47 | ALLEGIANT INSTITUTE INC. | LAS VEGAS | NV | ORTHOPEDIC SURGERY | 19 | 59 | $616,688 | $10,452 | premium | 20.0% | (702) 320-8111 |
| 48 | SACRED HEART HEALTH SYSTEM INC | PENSACOLA | FL | NURSE PRACTITIONER | 371 | 59 | $109,782 | $1,861 | premium | 3.9% | (850) 416-2400 |
| 49 | ORTHOPAEDIC CENTER OF IL | SPRINGFIELD | IL | ORTHOPEDIC SURGERY | 30 | 59 | $388,574 | $6,586 | premium | 11.2% | (217) 547-9100 |
| 50 | ORTHOPAEDICS NORTHEAST PC | FORT WAYNE | IN | PHYSICIAN ASSISTANT | 80 | 58 | $126,286 | $2,177 | premium | 12.7% | (260) 484-8551 |
| 51 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 58 | $70,621 | $1,218 | premium | 9.6% | (919) 684-8111 |
| 52 | NEUROLOGICAL SURGERY SPECIALIST OF NORTH TEXAS PLLC | WICHITA FALLS | TX | PHYSICIAN ASSISTANT | 7 | 58 | $126,788 | $2,186 | premium | 3.5% | (940) 764-7000 |
| 53 | ORTHOPEDIC ONE, INC. | UPPER ARLINGTON | OH | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 280 | 58 | $87,480 | $1,508 | premium | 30.5% | (614) 827-8700 |
| 54 | COLUMBIA ORTHOPAEDIC GROUP LLP | COLUMBIA | MO | ORTHOPEDIC SURGERY | 91 | 57 | $288,933 | $5,069 | premium | 11.8% | (573) 443-2402 |
| 55 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 57 | $95,417 | $1,674 | premium | 19.7% | (501) 202-2093 |
| 56 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 56 | $90,888 | $1,623 | premium | 3.7% | (904) 308-6900 |
| 57 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 55 | $382,026 | $6,946 | premium | 10.4% | (847) 459-1160 |
| 58 | GEORGIA NEUROSURGICAL INSTITUTE, P.C | MACON | GA | NEUROSURGERY | 22 | 55 | $300,323 | $5,460 | premium | 7.2% | (478) 743-7092 |
| 59 | OLYMPIA ORTHOPAEDIC ASSOCIATES PLLC | OLYMPIA | WA | PHYSICIAN ASSISTANT | 109 | 55 | $86,297 | $1,569 | premium | 17.9% | — |
| 60 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 52 | $108,526 | $2,087 | premium | 3.1% | (254) 724-2663 |
| 61 | NEUROSCIENCE AND SPINE ASSOCIATES PL | NAPLES | FL | PHYSICIAN ASSISTANT | 52 | 52 | $458,016 | $8,808 | premium | 3.4% | (239) 312-7878 |
| 62 | CHRISTUS TRINITY CLINIC | TYLER | TX | NURSE PRACTITIONER | 1495 | 52 | $97,133 | $1,868 | premium | 3.1% | (903) 606-5560 |
| 63 | BAPTIST MEDICAL GROUP LLC | PENSACOLA | FL | PHYSICIAN ASSISTANT | 248 | 51 | $54,310 | $1,065 | premium | 3.4% | — |
| 64 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 51 | $241,800 | $4,741 | premium | 9.7% | (630) 469-9200 |
| 65 | SANTA ROSA ORTHOPAEDIC MEDICAL GROUP, INC. | SANTA ROSA | LA | ORTHOPEDIC SURGERY | 8 | 51 | $13,386 | $262 | premium | 10.0% | 70754619225507 |
| 66 | MOUNTAIN ORTHOPAEDICS LLC | BOUNTIFUL | UT | PHYSICIAN ASSISTANT | 27 | 50 | $56,124 | $1,122 | premium | 25.0% | (801) 295-7200 |
| 67 | FOX VALLEY ORTHOPAEDIC ASSOCIATES PLLC | GENEVA | IL | PHYSICIAN ASSISTANT | 72 | 50 | $222,990 | $4,460 | premium | 9.5% | (847) 468-1400 |
| 68 | ORTHOPEDIC SPECIALISTS OF NORTH AMERICA PLLC | SCOTTSDALE | AZ | ORTHOPEDIC SURGERY | 308 | 48 | $106,608 | $2,221 | premium | 10.3% | (602) 385-2115 |
| 69 | STEADMAN CLINIC PROFESSIONAL LLC | VAIL | CO | PHYSICIAN ASSISTANT | 77 | 47 | $257,832 | $5,486 | premium | 15.9% | (970) 476-1100 |
| 70 | SPINE AND SPORTS SPECIALITIES MEDICAL GROUP | ORANGE | CA | ORTHOPEDIC SURGERY | 15 | 45 | $132,300 | $2,940 | premium | 3.2% | (714) 598-1745 |
| 71 | INDIANA SPINE GROUP, PC | CARMEL | IN | ORTHOPEDIC SURGERY | 49 | 45 | $276,615 | $6,147 | premium | 9.9% | (317) 228-7000 |
| 72 | TYLER NEUROSURGICAL ASSOCIATES, P.A. | TYLER | TX | NEUROSURGERY | 7 | 44 | $87,348 | $1,985 | premium | 2.7% | (903) 595-2441 |
| 73 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 44 | $73,504 | $1,671 | premium | 7.6% | (803) 744-4900 |
| 74 | PENINSULA ORTHOPAEDIC ASSOC PA | SALISBURY | MD | PHYSICIAN ASSISTANT | 57 | 43 | $146,544 | $3,408 | premium | 7.3% | (410) 749-4154 |
| 75 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 42 | $185,388 | $4,414 | premium | 3.0% | (650) 723-4000 |
| 76 | TENNESSEE ORTHOPAEDIC ALLIANCE PA | NASHVILLE | TN | PHYSICIAN ASSISTANT | 352 | 42 | $76,546 | $1,823 | premium | 6.8% | (615) 329-6600 |
| 77 | BOCACARE INC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 199 | 42 | $135,885 | $3,235 | premium | 2.8% | (561) 955-7100 |
| 78 | CENTER FOR ORTHOPEDIC RESEARCH AND EDUCATION LLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 254 | 42 | $75,474 | $1,797 | premium | 9.0% | (866) 974-2673 |
| 79 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 41 | $94,554 | $2,306 | premium | 14.1% | (479) 571-4338 |
| 80 | NEUROSURGICAL ASSOCIATES PC | HENRICO | VA | NEUROSURGERY | 16 | 41 | $225,500 | $5,500 | premium | 4.2% | (804) 288-8204 |
| 81 | MULTICARE HEALTH SYSTEM | GIG HARBOR | WA | NURSE PRACTITIONER | 2289 | 40 | $89,160 | $2,229 | premium | 13.0% | — |
| 82 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 40 | $103,935 | $2,598 | premium | 2.8% | (800) 926-8273 |
| 83 | DAVID BARNETT, MD PA | ADDISON | TX | PHYSICIAN ASSISTANT | 2 | 40 | $184,678 | $4,617 | premium | 2.4% | (913) 387-0511 |
| 84 | SOUTH FLORIDA ORTHOPAEDICS AND SPORTS MEDICINE, PA | STUART | FL | PHYSICIAN ASSISTANT | 71 | 39 | $150,358 | $3,855 | premium | 2.6% | — |
| 85 | UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC | GLEN BURNIE | MD | NURSE PRACTITIONER | 458 | 39 | $53,476 | $1,371 | premium | 6.6% | (410) 761-1222 |
| 86 | DESERT ORTHOPEDIC CENTER A MEDICAL GROUP INC | RANCHO MIRAGE | CA | PHYSICIAN ASSISTANT | 50 | 39 | $58,843 | $1,509 | premium | 2.7% | (760) 340-3911 |
| 87 | BEACON ORTHOPAEDICS AND SPORTS MEDICINE LTD | CINCINNATI | OH | PHYSICIAN ASSISTANT | 468 | 39 | $58,032 | $1,488 | premium | 20.5% | (513) 354-3700 |
| 88 | IOWA ORTHOPAEDIC CENTER PC | DES MOINES | IA | PHYSICIAN ASSISTANT | 69 | 38 | $49,330 | $1,298 | premium | 33.9% | (515) 247-8400 |
| 89 | TALLAHASSEE ORTHOPEDIC CLINIC III PL | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 542 | 38 | $95,981 | $2,526 | premium | 2.5% | (850) 877-8174 |
| 90 | ORTHOARKANSAS PA | LITTLE ROCK | AR | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 145 | 37 | $102,565 | $2,772 | premium | 12.8% | (501) 500-3500 |
| 91 | HUNTSVILLE HOSPITAL SPINE AND NEURO CENTER | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 32 | 36 | $52,034 | $1,445 | premium | 3.6% | (256) 533-1600 |
| 92 | TEXAS SPINE CONSULTANTS, LLP | ADDISON | TX | ORTHOPEDIC SURGERY | 13 | 36 | $135,256 | $3,757 | premium | 2.2% | (214) 370-3535 |
| 93 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 36 | $306,000 | $8,500 | premium | 6.8% | — |
| 94 | FRONT RANGE SPINE AND NEUROSURGERY | LONE TREE | CO | PHYSICIAN ASSISTANT | 12 | 35 | $98,000 | $2,800 | premium | 11.9% | (303) 790-1800 |
| 95 | THE NEUROLOGICAL INSTITUTE OF SAVANNAH AND CENTER FOR SPINE P C | SAVANNAH | GA | NEUROSURGERY | 28 | 35 | $99,943 | $2,856 | premium | 4.6% | (912) 355-1010 |
| 96 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 35 | $76,147 | $2,176 | premium | 6.1% | (803) 749-5101 |
| 97 | THE COLUMBUS ORTHOPAEDIC CLINIC, P.A. | COLUMBUS | MS | NURSE PRACTITIONER | 47 | 35 | $103,250 | $2,950 | premium | 10.8% | (662) 328-1012 |
| 98 | SCOTT LEARY MD INC | SAN DIEGO | CA | NEUROSURGERY | 2 | 35 | $173,500 | $4,957 | premium | 2.5% | (858) 223-2100 |
| 99 | SPINE SURGERY ASSOCIATES PLLC | OKLAHOMA CITY | OK | NURSE PRACTITIONER | 5 | 35 | $60,000 | $1,714 | premium | 8.9% | (405) 242-4345 |
| 100 | FERNANDO DELASOTTA MD PA | LINWOOD | NJ | NEUROSURGERY | 2 | 35 | $185,574 | $5,302 | premium | 23.0% | (609) 927-1000 |
Showing the top 100 of 316 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 →