20,364 observed fee-for-service (50%) · ~19,982 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 | 22840 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 | ORTHOPAEDIC SPECIALTY INSTITUTE MEDICAL GROUP OF ORANGE COUNTY | ORANGE | CA | PHYSICIAN ASSISTANT | 58 | 394 | $571,843 | $1,451 | premium | 14.2% | (714) 634-4567 |
| 2 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 324 | $494,820 | $1,527 | premium | 12.9% | (214) 220-2468 |
| 3 | DESERT INSTITUTE FOR SPINE CARE PC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 12 | 323 | $1,227,011 | $3,799 | premium | 25.8% | (602) 944-2900 |
| 4 | NOVANT HEALTH SOUTHEASTERN SPINE INSTITUTE LLC | MT PLEASANT | SC | PHYSICIAN ASSISTANT | 29 | 231 | $259,361 | $1,123 | premium | 21.8% | — |
| 5 | ABAY NEUROSCIENCE CENTER LLC | WICHITA | KS | NURSE PRACTITIONER | 16 | 207 | $519,222 | $2,508 | premium | 33.4% | (316) 609-2600 |
| 6 | ARLINGTON NEUROSURGEONS, PLLC | PLANO | TX | PHYSICIAN ASSISTANT | 46 | 203 | $500,738 | $2,467 | premium | 8.1% | (972) 596-6800 |
| 7 | SAINTS MEDICAL GROUP, LLC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 435 | 197 | $314,412 | $1,596 | premium | 25.2% | — |
| 8 | INDIANA SPINE GROUP, PC | CARMEL | IN | ORTHOPEDIC SURGERY | 49 | 173 | $833,533 | $4,818 | premium | 16.6% | (317) 228-7000 |
| 9 | NEUROSURGICAL ASSOCIATES LTD | PHOENIX | AZ | NEUROSURGERY | 74 | 169 | $443,750 | $2,626 | premium | 13.5% | (602) 406-3181 |
| 10 | HH HEALTH SYSTEM - THE ORTHOPAEDIC CENTER LLC | HUNTSVILLE | AL | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 175 | 152 | $464,564 | $3,056 | premium | 19.7% | (256) 539-2728 |
| 11 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 151 | $317,964 | $2,106 | premium | 5.5% | (858) 455-9100 |
| 12 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 151 | $1,160,816 | $7,688 | premium | 15.4% | — |
| 13 | COLUMBIA ORTHOPAEDIC GROUP LLP | COLUMBIA | MO | ORTHOPEDIC SURGERY | 91 | 147 | $420,098 | $2,858 | premium | 19.2% | (573) 443-2402 |
| 14 | ADVANCED ORTHOPEDICS OF OKLAHOMA PLLC | TULSA | OK | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 89 | 146 | $281,758 | $1,930 | premium | 18.6% | (918) 494-2665 |
| 15 | SOUTH FLORIDA ORTHOPAEDICS AND SPORTS MEDICINE, PA | STUART | FL | PHYSICIAN ASSISTANT | 71 | 144 | $682,983 | $4,743 | premium | 5.2% | — |
| 16 | MD WEST ONE, PC | OMAHA | NE | PHYSICIAN ASSISTANT | 84 | 141 | $314,468 | $2,230 | premium | 26.3% | (402) 399-1900 |
| 17 | HUGHSTON CLINIC PC | COLUMBUS | GA | ORTHOPEDIC SURGERY | 118 | 136 | $1,118,532 | $8,224 | premium | 14.6% | (706) 494-3434 |
| 18 | ORTHOPEDIC ONE, INC. | UPPER ARLINGTON | OH | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 280 | 133 | $205,138 | $1,542 | premium | 14.7% | (614) 827-8700 |
| 19 | GULFCOAST SPINE INSTITUTE, LLC | TAMPA | FL | ORTHOPEDIC SURGERY | 9 | 130 | $228,200 | $1,755 | premium | 4.7% | (813) 443-2108 |
| 20 | DESERT ORTHOPEDIC CENTER A MEDICAL GROUP INC | RANCHO MIRAGE | CA | PHYSICIAN ASSISTANT | 50 | 127 | $235,729 | $1,856 | premium | 4.6% | (760) 340-3911 |
| 21 | PORTERCARE ADVENTIST HEALTH SYSTEM | DENVER | CO | PHYSICIAN ASSISTANT | 748 | 123 | $222,788 | $1,811 | premium | 18.8% | (303) 778-5797 |
| 22 | BAPTIST MEDICAL GROUP LLC | PENSACOLA | FL | PHYSICIAN ASSISTANT | 248 | 118 | $114,980 | $974 | premium | 4.3% | — |
| 23 | MISSISSIPPI SPORTS MEDICINE AND ORTHOPAEDIC CENTER | JACKSON | MS | ORTHOPEDIC SURGERY | 75 | 117 | $214,060 | $1,830 | premium | 30.5% | (601) 354-4488 |
| 24 | TUCSON ORTHOPAEDIC INSTITUTE PROFESSIONAL CORPORATION | TUCSON | AZ | PHYSICIAN ASSISTANT | 111 | 116 | $191,510 | $1,651 | premium | 9.3% | (520) 382-8200 |
| 25 | THE ORTHOPAEDIC INSTITUTE, PA | GAINESVILLE | FL | PHYSICIAN ASSISTANT | 115 | 116 | $100,376 | $865 | premium | 4.2% | (352) 336-6000 |
| 26 | LYERLY BAPTIST INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 68 | 112 | $113,317 | $1,012 | premium | 4.1% | (904) 388-6518 |
| 27 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 112 | $252,984 | $2,259 | premium | 4.1% | (310) 423-0674 |
| 28 | NEBRASKA SPINE CENTER, LLP | OMAHA | NE | PHYSICIAN ASSISTANT | 35 | 111 | $219,065 | $1,974 | premium | 20.7% | (402) 496-5517 |
| 29 | GABRIELE JASPER MD, INC | BRICK | NJ | ANESTHESIOLOGY | 5 | 109 | $258,805 | $2,374 | premium | 25.7% | (732) 262-0700 |
| 30 | ORTHOMIDWEST, PLLC | CHICAGO | IL | PHYSICIAN ASSISTANT | 542 | 109 | $828,625 | $7,602 | premium | 11.1% | (877) 632-6637 |
| 31 | ERIK C SPAYDE MD INC | THOUSAND OAKS | CA | PHYSICIAN ASSISTANT | 4 | 108 | $265,867 | $2,462 | premium | 3.9% | 8053792322119 |
| 32 | BETHESDA CHEVY CHASE ORTHOPAEDIC ASSOCIATES, LLC | BETHESDA | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 135 | 105 | $349,168 | $3,325 | premium | 11.9% | (301) 530-1010 |
| 33 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 103 | $429,201 | $4,167 | premium | 10.9% | (617) 732-5500 |
| 34 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 103 | $169,402 | $1,645 | premium | 3.7% | (904) 308-6900 |
| 35 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 101 | $445,814 | $4,414 | premium | 3.7% | (650) 723-4000 |
| 36 | MSK GROUP PC | MEMPHIS | TN | ORTHOPEDIC SURGERY | 141 | 98 | $406,909 | $4,152 | premium | 12.2% | (901) 641-3000 |
| 37 | CENTER FOR ORTHOPEDIC RESEARCH AND EDUCATION LLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 254 | 98 | $165,926 | $1,693 | premium | 7.8% | (866) 974-2673 |
| 38 | BILLINGS CLINIC | BILLINGS | MT | PHYSICIAN ASSISTANT | 811 | 93 | $356,035 | $3,828 | premium | 51.1% | (406) 657-4000 |
| 39 | MCBRIDE CLINIC ORTHOPEDIC HOSPITAL, LLC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 103 | 93 | $111,622 | $1,200 | premium | 11.9% | (405) 604-6000 |
| 40 | HUNTSMAN WEST SPINE LLC | ST GEORGE | UT | NURSE PRACTITIONER | 7 | 93 | $106,354 | $1,144 | premium | 17.8% | (435) 652-6024 |
| 41 | ORTHOARKANSAS PA | LITTLE ROCK | AR | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 145 | 90 | $153,538 | $1,706 | premium | 23.3% | (501) 500-3500 |
| 42 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 89 | $194,552 | $2,186 | premium | 3.2% | (415) 600-1020 |
| 43 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 89 | $245,809 | $2,762 | premium | 8.4% | (864) 587-3000 |
| 44 | DUKE FORAGE ANSON NEUROSURGICAL LLP | HENDERSON | NV | NEUROSURGERY | 10 | 88 | $296,820 | $3,373 | premium | 18.3% | (702) 896-0940 |
| 45 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 87 | $180,823 | $2,078 | premium | 3.5% | (254) 724-2663 |
| 46 | NEW ENGLAND MEDICAL CENTER GROUP PRACTICE INC | BOSTON | MA | PHYSICIAN ASSISTANT | 29 | 87 | $393,327 | $4,521 | premium | 9.2% | (617) 636-7399 |
| 47 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 85 | $289,062 | $3,401 | premium | 8.7% | (630) 469-9200 |
| 48 | INFINITE HEALTH COLLABORATIVE, PA | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 813 | 85 | $165,414 | $1,946 | premium | 19.2% | (612) 863-6960 |
| 49 | ALLINA HEALTH SYSTEM | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 3855 | 82 | $179,310 | $2,187 | premium | 18.5% | (612) 863-4000 |
| 50 | ROPER SAINT FRANCIS PHYSICIANS NETWORK | CHARLESTON | SC | PHYSICIAN ASSISTANT | 539 | 81 | $196,425 | $2,425 | premium | 7.6% | (843) 720-8448 |
| 51 | KEIPERSPINE PC | EUGENE | OR | NEUROSURGERY | 6 | 81 | $162,000 | $2,000 | premium | 25.2% | (541) 485-2357 |
| 52 | TALLAHASSEE ORTHOPEDIC CLINIC III PL | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 542 | 80 | $248,828 | $3,110 | premium | 2.9% | (850) 877-8174 |
| 53 | CHRISTUS TRINITY CLINIC | TYLER | TX | NURSE PRACTITIONER | 1495 | 80 | $145,263 | $1,816 | premium | 3.2% | (903) 606-5560 |
| 54 | NEWSOUTH NEUROSPINE, LLC | FLOWOOD | MS | NEUROSURGERY | 22 | 80 | $307,800 | $3,848 | premium | 20.8% | (601) 983-2859 |
| 55 | UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC | GLEN BURNIE | MD | NURSE PRACTITIONER | 458 | 79 | $111,438 | $1,411 | premium | 10.4% | (410) 761-1222 |
| 56 | NEUROSCIENCE SPECIALISTS PC | OKLAHOMA CITY | OK | NEUROSURGERY | 16 | 77 | $328,520 | $4,266 | premium | 9.8% | (405) 748-3300 |
| 57 | IOWA ORTHOPAEDIC CENTER PC | DES MOINES | IA | PHYSICIAN ASSISTANT | 69 | 76 | $89,472 | $1,177 | premium | 14.3% | (515) 247-8400 |
| 58 | DELAWARE NEUROSURGICAL GROUP, PA | NEWARK | DE | PHYSICIAN ASSISTANT | 24 | 76 | $392,757 | $5,168 | premium | 36.7% | (302) 366-7671 |
| 59 | VIRGINIA SPINE SPECIALISTS PLLC | MANASSAS | VA | PHYSICIAN ASSISTANT | 4 | 76 | $145,875 | $1,919 | premium | 8.6% | (571) 921-4877 |
| 60 | USC CARE MEDICAL GROUP INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 1374 | 75 | $208,385 | $2,778 | premium | 2.7% | (800) 872-2273 |
| 61 | VALLEY PHYSICIAN ENTERPRISE INC | WINCHESTER | VA | PHYSICIAN ASSISTANT | 229 | 74 | $97,204 | $1,314 | premium | 8.4% | (540) 536-8000 |
| 62 | SPINE INSTITUTE OF LOUISIANA LLC | SHREVEPORT | LA | NURSE PRACTITIONER | 13 | 74 | $252,762 | $3,416 | premium | 14.5% | (318) 629-5560 |
| 63 | ARCIS HEALTHCARE LLC | NORTH CHARLESTON | SC | PHYSICIAN ASSISTANT | 33 | 74 | $259,875 | $3,512 | premium | 7.0% | (843) 797-5050 |
| 64 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 73 | $110,787 | $1,518 | premium | 14.0% | (801) 261-8346 |
| 65 | NEUROSURGICAL CONSULTANTS LLP | EVANSVILLE | KY | PHYSICIAN ASSISTANT | 18 | 72 | $299,232 | $4,156 | premium | 30.5% | (812) 426-8410 |
| 66 | TOWN CENTER ORTHOPAEDIC ASSOCIATES P C | RESTON | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 56 | 71 | $122,725 | $1,729 | premium | 8.1% | (703) 435-6604 |
| 67 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 71 | $146,998 | $2,070 | premium | 6.7% | — |
| 68 | PROMEDICA CENTRAL PHYSICIANS | TOLEDO | OH | PHYSICIAN ASSISTANT | 794 | 71 | $94,457 | $1,330 | premium | 7.9% | (419) 291-2003 |
| 69 | THE ORTHOPAEDIC GROUP PC | MOBILE | AL | ORTHOPEDIC SURGERY | 69 | 71 | $277,450 | $3,908 | premium | 9.2% | (251) 476-5050 |
| 70 | TMI SPORTS MEDICINE AND ORTHOPEDIC SURGERY PA | ARLINGTON | TX | PHYSICIAN ASSISTANT | 19 | 70 | $77,615 | $1,109 | premium | 2.8% | (817) 419-0303 |
| 71 | TIDEWATER ORTHOPAEDIC ASSOCIATES INC. | HAMPTON | VA | PHYSICIAN ASSISTANT | 27 | 69 | $161,484 | $2,340 | premium | 7.8% | (757) 827-2480 |
| 72 | SPORTSMED ORTHOPAEDIC SPECIALISTS | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 86 | 68 | $94,175 | $1,385 | premium | 8.8% | — |
| 73 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 68 | $254,009 | $3,735 | premium | 7.2% | (617) 724-0287 |
| 74 | OGDEN CLINIC SPECIALTY SERVICES LLC | OGDEN | UT | PHYSICIAN ASSISTANT | 133 | 68 | $114,236 | $1,680 | premium | 13.0% | (801) 475-3800 |
| 75 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 67 | $112,746 | $1,683 | premium | 7.1% | — |
| 76 | MOUNTAIN ORTHOPAEDICS LLC | BOUNTIFUL | UT | PHYSICIAN ASSISTANT | 27 | 66 | $77,552 | $1,175 | premium | 12.6% | (801) 295-7200 |
| 77 | ST LUKES CLINIC-TREASURE VALLEY LLC | BOISE | ID | PHYSICIAN ASSISTANT | 1159 | 66 | $277,193 | $4,200 | premium | 25.5% | (208) 381-4210 |
| 78 | DAVID BARNETT, MD PA | ADDISON | TX | PHYSICIAN ASSISTANT | 2 | 66 | $234,517 | $3,553 | premium | 2.6% | (913) 387-0511 |
| 79 | GREATER PITTSBURGH ORTHOPAEDIC ASSOCIATES INC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 41 | 66 | $116,800 | $1,770 | premium | 4.6% | (412) 661-5500 |
| 80 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 64 | $350,900 | $5,483 | premium | 4.5% | — |
| 81 | FORT WORTH BRAIN AND SPINE INSTITUTE, LLP | FORT WORTH | TX | NEUROSURGERY | 11 | 64 | $105,344 | $1,646 | premium | 2.5% | (817) 878-5333 |
| 82 | DIAGNOSTIC AND INTERVENTIONAL SPINAL CARE OF LOUISIANA | COVINGTON | LA | PHYSICIAN ASSISTANT | 10 | 63 | $231,000 | $3,667 | premium | 12.3% | — |
| 83 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 62 | $169,403 | $2,732 | premium | 2.2% | (916) 681-8852 |
| 84 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 62 | $95,502 | $1,540 | premium | 2.2% | (714) 871-3006 |
| 85 | ORTHOPEDICSNY, LLP | ALBANY | NY | PHYSICIAN ASSISTANT | 112 | 62 | $87,392 | $1,410 | premium | 9.3% | (518) 489-2663 |
| 86 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 62 | $441,308 | $7,118 | premium | 9.3% | (212) 263-9700 |
| 87 | FLORIDA SPINE ASSOCIATES LLC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 20 | 61 | $529,687 | $8,683 | premium | 2.2% | (561) 495-9511 |
| 88 | METHODIST PHYSICIAN PRACTICES PLLC | SAN ANTONIO | TX | INTERVENTIONAL CARDIOLOGY | 169 | 61 | $146,840 | $2,407 | premium | 2.4% | (210) 575-8289 |
| 89 | STEADMAN CLINIC PROFESSIONAL LLC | VAIL | CO | PHYSICIAN ASSISTANT | 77 | 61 | $321,213 | $5,266 | premium | 9.3% | (970) 476-1100 |
| 90 | PROLIANCE SURGEONS INC P S | ISSAQUAH | WA | PHYSICIAN ASSISTANT | 395 | 59 | $133,426 | $2,261 | premium | 10.9% | (425) 313-5422 |
| 91 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 58 | $100,698 | $1,736 | premium | 9.4% | (913) 588-1227 |
| 92 | FAIRBANKS PARTNERS LLC | CELEBRATION | FL | NEUROSURGERY | 36 | 58 | $42,456 | $732 | premium | 2.1% | (407) 975-0200 |
| 93 | SPINE AND SPORTS SPECIALITIES MEDICAL GROUP | ORANGE | CA | ORTHOPEDIC SURGERY | 15 | 58 | $152,322 | $2,626 | premium | 2.1% | (714) 598-1745 |
| 94 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 58 | $308,595 | $5,321 | premium | 4.1% | (215) 662-2777 |
| 95 | NORTH IOWA MERCY CLINICS | MASON CITY | IA | NURSE PRACTITIONER | 316 | 57 | $207,164 | $3,634 | premium | 10.7% | — |
| 96 | KENNEDY WHITE AND RIGGS ORTHOPEDIC ASSOCIATES | SARASOTA | FL | PHYSICIAN ASSISTANT | 40 | 57 | $57,684 | $1,012 | premium | 2.1% | (941) 365-0655 |
| 97 | SHAWNEE MISSION MEDICAL CENTER INC | MERRIAM | KS | NURSE PRACTITIONER | 262 | 56 | $113,013 | $2,018 | premium | 9.0% | (913) 676-2000 |
| 98 | ILLINOIS BONE AND JOINT INSTITUTE, LLC | BANNOCKBURN | IL | ORTHOPEDIC SURGERY | 595 | 56 | $378,112 | $6,752 | premium | 5.7% | — |
| 99 | ATLANTIC BRAIN AND SPINE, P.A. | WILMINGTON | NC | PHYSICIAN ASSISTANT | 20 | 55 | $153,665 | $2,794 | premium | 7.4% | (910) 763-3333 |
| 100 | NEUROLOGICAL AND SPINAL SURGERY LLC | LINCOLN | NE | PHYSICIAN ASSISTANT | 13 | 54 | $93,139 | $1,725 | premium | 10.1% | (402) 488-3002 |
Showing the top 100 of 510 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 →