22551 — Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, 1 disc
13,651 observed fee-for-service (50%) · ~13,739 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 exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
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 | City | St | Specialty | Providers | 22551 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 322 | $1,113,618 | $3,458 | premium | 13.3% | (214) 220-2468 |
| 2 | ABAY NEUROSCIENCE CENTER LLC | WICHITA | KS | NURSE PRACTITIONER | 16 | 249 | $1,013,762 | $4,071 | premium | 63.7% | (316) 609-2600 |
| 3 | LYERLY BAPTIST INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 68 | 212 | $511,653 | $2,413 | premium | 8.7% | (904) 388-6518 |
| 4 | NEUROSCIENCE AND SPINE ASSOCIATES PL | NAPLES | FL | PHYSICIAN ASSISTANT | 52 | 166 | $3,060,919 | $18,439 | premium | 6.8% | (239) 312-7878 |
| 5 | NEUROMEDICAL CENTER | BATON ROUGE | LA | PHYSICIAN ASSISTANT | 108 | 161 | $863,463 | $5,363 | premium | 19.9% | 22576922002164 |
| 6 | NEUROSURGICAL ASSOCIATES LTD | PHOENIX | AZ | NEUROSURGERY | 74 | 148 | $1,018,000 | $6,878 | premium | 21.6% | (602) 406-3181 |
| 7 | SAINTS MEDICAL GROUP, LLC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 435 | 136 | $486,336 | $3,576 | premium | 19.9% | — |
| 8 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 134 | $302,675 | $2,259 | premium | 17.0% | (919) 684-8111 |
| 9 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 132 | $489,682 | $3,710 | premium | 5.4% | (904) 308-6900 |
| 10 | HEALTH FIRST MEDICAL GROUP, LLC | MELBOURNE | FL | NURSE PRACTITIONER | 669 | 122 | $274,047 | $2,246 | premium | 5.0% | (321) 434-8878 |
| 11 | DELAWARE NEUROSURGICAL GROUP, PA | NEWARK | DE | PHYSICIAN ASSISTANT | 24 | 117 | $622,625 | $5,322 | premium | 40.5% | (302) 366-7671 |
| 12 | ORTHOVIRGINIA INC | NORTH CHESTERFIELD | VA | PHYSICIAN ASSISTANT | 567 | 117 | $668,119 | $5,710 | premium | 14.0% | — |
| 13 | RIVERSIDE PHYSICIAN SERVICES INC | NEWPORT NEWS | VA | PHYSICIAN ASSISTANT | 793 | 111 | $296,976 | $2,675 | premium | 13.3% | — |
| 14 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 110 | $455,625 | $4,142 | premium | 14.3% | (615) 269-4545 |
| 15 | BETHESDA CHEVY CHASE ORTHOPAEDIC ASSOCIATES, LLC | BETHESDA | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 135 | 106 | $872,907 | $8,235 | premium | 12.7% | (301) 530-1010 |
| 16 | NEWSOUTH NEUROSPINE, LLC | FLOWOOD | MS | NEUROSURGERY | 22 | 105 | $1,046,024 | $9,962 | premium | 22.0% | (601) 983-2859 |
| 17 | FREEMAN-OAK HILL HEALTH SYSTEM | JOPLIN | MO | NURSE PRACTITIONER | 382 | 104 | $706,067 | $6,789 | premium | 22.9% | (417) 347-8200 |
| 18 | TYLER NEUROSURGICAL ASSOCIATES, P.A. | TYLER | TX | NEUROSURGERY | 7 | 100 | $296,408 | $2,964 | premium | 4.1% | (903) 595-2441 |
| 19 | FAIRBANKS PARTNERS LLC | CELEBRATION | FL | NEUROSURGERY | 36 | 98 | $289,178 | $2,951 | premium | 4.0% | (407) 975-0200 |
| 20 | NEUROSCIENCE SPECIALISTS PC | OKLAHOMA CITY | OK | NEUROSURGERY | 16 | 98 | $778,288 | $7,942 | premium | 14.3% | (405) 748-3300 |
| 21 | NOVANT HEALTH SOUTHEASTERN SPINE INSTITUTE LLC | MT PLEASANT | SC | PHYSICIAN ASSISTANT | 29 | 98 | $376,800 | $3,845 | premium | 12.6% | — |
| 22 | DESERT INSTITUTE FOR SPINE CARE PC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 12 | 96 | $793,092 | $8,261 | premium | 14.0% | (602) 944-2900 |
| 23 | CHRISTUS TRINITY CLINIC | TYLER | TX | NURSE PRACTITIONER | 1495 | 93 | $466,445 | $5,016 | premium | 3.8% | (903) 606-5560 |
| 24 | ADVENTIST HEALTH SYSTEM GEORGIA INC | CALHOUN | GA | NURSE PRACTITIONER | 229 | 92 | $309,857 | $3,368 | premium | 10.9% | — |
| 25 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 91 | $1,117,500 | $12,280 | premium | 14.6% | (847) 459-1160 |
| 26 | MIDLANDS ORTHOPAEDICS AND NEUROSURGERY PA | COLUMBIA | SC | PHYSICIAN ASSISTANT | 42 | 85 | $354,490 | $4,170 | premium | 10.9% | (803) 256-4107 |
| 27 | HEINRICH-JOSEY ORTHOPAEDICS | AUSTIN | TX | PHYSICIAN ASSISTANT | 22 | 85 | $1,286,625 | $15,137 | premium | 3.5% | (512) 476-2830 |
| 28 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 83 | $317,546 | $3,826 | premium | 6.6% | (858) 455-9100 |
| 29 | FORT WORTH BRAIN AND SPINE INSTITUTE, LLP | FORT WORTH | TX | NEUROSURGERY | 11 | 78 | $292,656 | $3,752 | premium | 3.2% | (817) 878-5333 |
| 30 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 77 | $148,713 | $1,931 | premium | 22.2% | (479) 571-4338 |
| 31 | HH HEALTH SYSTEM - THE ORTHOPAEDIC CENTER LLC | HUNTSVILLE | AL | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 175 | 77 | $406,055 | $5,273 | premium | 11.2% | (256) 539-2728 |
| 32 | BAPTIST MEDICAL GROUP LLC | PENSACOLA | FL | PHYSICIAN ASSISTANT | 248 | 75 | $160,230 | $2,136 | premium | 3.1% | — |
| 33 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 75 | $315,507 | $4,207 | premium | 28.1% | — |
| 34 | ORTHOPAEDIC CENTER OF IL | SPRINGFIELD | IL | ORTHOPEDIC SURGERY | 30 | 75 | $1,073,006 | $14,307 | premium | 12.0% | (217) 547-9100 |
| 35 | MISSISSIPPI SPORTS MEDICINE AND ORTHOPAEDIC CENTER | JACKSON | MS | ORTHOPEDIC SURGERY | 75 | 73 | $330,000 | $4,521 | premium | 15.3% | (601) 354-4488 |
| 36 | GEORGIA NEUROSURGICAL INSTITUTE, P.C | MACON | GA | NEUROSURGERY | 22 | 72 | $636,996 | $8,847 | premium | 8.5% | (478) 743-7092 |
| 37 | ORTHOSC LLC | MYRTLE BEACH | SC | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 113 | 71 | $232,095 | $3,269 | premium | 9.1% | (843) 491-4937 |
| 38 | NEUROLOGICAL SURGERY SPECIALIST OF NORTH TEXAS PLLC | WICHITA FALLS | TX | PHYSICIAN ASSISTANT | 7 | 71 | $360,751 | $5,081 | premium | 2.9% | (940) 764-7000 |
| 39 | SOUTH FLORIDA ORTHOPAEDICS AND SPORTS MEDICINE, PA | STUART | FL | PHYSICIAN ASSISTANT | 71 | 70 | $1,235,118 | $17,645 | premium | 2.9% | — |
| 40 | NEUROSURGICAL ASSOCIATES, P. C. | BIRMINGHAM | AL | NEUROSURGERY | 10 | 67 | $346,500 | $5,172 | premium | 9.8% | 20593389811810 |
| 41 | DIAGNOSTIC AND INTERVENTIONAL SPINAL CARE OF LOUISIANA | COVINGTON | LA | PHYSICIAN ASSISTANT | 10 | 67 | $600,000 | $8,955 | premium | 8.3% | — |
| 42 | TALLAHASSEE ORTHOPEDIC CLINIC III PL | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 542 | 66 | $449,225 | $6,806 | premium | 2.7% | (850) 877-8174 |
| 43 | CAMPBELL CLINIC, PC | GERMANTOWN | TN | ORTHOPEDIC SURGERY | 225 | 65 | $207,376 | $3,190 | premium | 8.4% | (901) 759-3100 |
| 44 | UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC | GLEN BURNIE | MD | NURSE PRACTITIONER | 458 | 65 | $209,698 | $3,226 | premium | 8.2% | (410) 761-1222 |
| 45 | SPORTSMED ORTHOPAEDIC SPECIALISTS | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 86 | 64 | $285,100 | $4,455 | premium | 9.3% | — |
| 46 | SPINE INSTITUTE OF LOUISIANA LLC | SHREVEPORT | LA | NURSE PRACTITIONER | 13 | 63 | $496,892 | $7,887 | premium | 7.8% | (318) 629-5560 |
| 47 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 62 | $384,710 | $6,205 | premium | 10.0% | — |
| 48 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 61 | $292,932 | $4,802 | premium | 2.5% | (254) 724-2663 |
| 49 | TENNESSEE ORTHOPAEDIC ALLIANCE PA | NASHVILLE | TN | PHYSICIAN ASSISTANT | 352 | 61 | $261,415 | $4,285 | premium | 7.9% | (615) 329-6600 |
| 50 | UCSF MEDICAL GROUP BUSINESS SERVICES | SAN FRANCISCO | CA | DIAGNOSTIC RADIOLOGY | 1548 | 60 | $543,300 | $9,055 | premium | 4.8% | (415) 476-1000 |
| 51 | ORTHOPEDIC ONE, INC. | UPPER ARLINGTON | OH | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 280 | 60 | $179,095 | $2,985 | premium | 10.9% | (614) 827-8700 |
| 52 | ORTHOPEDIC SPECIALISTS OF NORTH AMERICA PLLC | SCOTTSDALE | AZ | ORTHOPEDIC SURGERY | 308 | 59 | $306,500 | $5,195 | premium | 8.6% | (602) 385-2115 |
| 53 | IDAHO PHYSICIAN SERVICES INC | IDAHO FALLS | ID | PHYSICIAN ASSISTANT | 18 | 59 | $291,973 | $4,949 | premium | 28.9% | (208) 528-1000 |
| 54 | OLYMPIA ORTHOPAEDIC ASSOCIATES PLLC | OLYMPIA | WA | PHYSICIAN ASSISTANT | 109 | 56 | $247,016 | $4,411 | premium | 20.5% | — |
| 55 | AP OF NASHVILLE, LLC | NASHVILLE | TN | PHYSICIAN ASSISTANT | 18 | 55 | $103,419 | $1,880 | premium | 7.1% | (615) 222-2111 |
| 56 | MICHIGAN ORTHOPAEDIC SPINE SURGEONS PC | ROCHESTER HILLS | MI | PHYSICIAN ASSISTANT | 16 | 55 | $132,135 | $2,402 | premium | 14.3% | (248) 215-8080 |
| 57 | KENNEDY WHITE AND RIGGS ORTHOPEDIC ASSOCIATES | SARASOTA | FL | PHYSICIAN ASSISTANT | 40 | 55 | $132,439 | $2,408 | premium | 2.3% | (941) 365-0655 |
| 58 | TOWN CENTER ORTHOPAEDIC ASSOCIATES P C | RESTON | VA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 56 | 54 | $189,450 | $3,508 | premium | 6.5% | (703) 435-6604 |
| 59 | IOWA ORTHOPAEDIC CENTER PC | DES MOINES | IA | PHYSICIAN ASSISTANT | 69 | 54 | $161,276 | $2,987 | premium | 31.6% | (515) 247-8400 |
| 60 | TEXAS HEALTH BACK CARE | ROCKWALL | TX | PHYSICAL MEDICINE AND REHABILITATION | 47 | 54 | $291,816 | $5,404 | premium | 2.2% | (817) 442-9300 |
| 61 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 54 | $371,944 | $6,888 | premium | 2.2% | — |
| 62 | ATLANTIC BRAIN AND SPINE, P.A. | WILMINGTON | NC | PHYSICIAN ASSISTANT | 20 | 53 | $513,989 | $9,698 | premium | 6.7% | (910) 763-3333 |
| 63 | LOUISIANA ORTHOPAEDIC SPECIALISTS LLC | LAFAYETTE | LA | PHYSICIAN ASSISTANT | 68 | 52 | $467,980 | $9,000 | premium | 6.4% | (337) 235-8007 |
| 64 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 51 | $204,233 | $4,005 | premium | 14.7% | (501) 202-2093 |
| 65 | VIRGINIA SPINE SPECIALISTS PLLC | MANASSAS | VA | PHYSICIAN ASSISTANT | 4 | 51 | $206,427 | $4,048 | premium | 6.1% | (571) 921-4877 |
| 66 | AHS OKLAHOMA PHYSICIAN GROUP LLC | TULSA | OK | FAMILY PRACTICE | 308 | 50 | $93,687 | $1,874 | premium | 7.3% | — |
| 67 | OKLAHOMA SPINE AND BRAIN INSTITUTE LLP | TULSA | OK | NEUROSURGERY | 4 | 49 | $253,961 | $5,183 | premium | 7.2% | (918) 749-0762 |
| 68 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 49 | $235,873 | $4,814 | premium | 3.9% | (916) 983-7476 |
| 69 | MOUNTAIN ORTHOPAEDICS LLC | BOUNTIFUL | UT | PHYSICIAN ASSISTANT | 27 | 49 | $128,746 | $2,627 | premium | 29.2% | (801) 295-7200 |
| 70 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 49 | $717,739 | $14,648 | premium | 11.0% | (212) 746-5454 |
| 71 | FERNANDO DELASOTTA MD PA | LINWOOD | NJ | NEUROSURGERY | 2 | 49 | $546,599 | $11,155 | premium | 17.6% | (609) 927-1000 |
| 72 | ORTHOMIDWEST, PLLC | CHICAGO | IL | PHYSICIAN ASSISTANT | 542 | 49 | $585,532 | $11,950 | premium | 7.9% | (877) 632-6637 |
| 73 | ST VINCENT HOSPITAL | SANTA FE | NM | PHYSICIAN ASSISTANT | 313 | 48 | $244,179 | $5,087 | premium | 100.0% | — |
| 74 | MSK GROUP PC | MEMPHIS | TN | ORTHOPEDIC SURGERY | 141 | 48 | $252,300 | $5,256 | premium | 6.2% | (901) 641-3000 |
| 75 | NEUROSURGICAL ASSOCIATES PC | HENRICO | VA | NEUROSURGERY | 16 | 48 | $245,472 | $5,114 | premium | 5.7% | (804) 288-8204 |
| 76 | GRAND STRAND SPECIALTY ASSOCIATES, LLC | MYRTLE BEACH | SC | PHYSICIAN ASSISTANT | 32 | 48 | $249,365 | $5,195 | premium | 6.2% | (843) 692-1000 |
| 77 | HUGHSTON CLINIC PC | COLUMBUS | GA | ORTHOPEDIC SURGERY | 118 | 47 | $415,995 | $8,851 | premium | 5.5% | (706) 494-3434 |
| 78 | DESERT ORTHOPEDIC CENTER A MEDICAL GROUP INC | RANCHO MIRAGE | CA | PHYSICIAN ASSISTANT | 50 | 46 | $159,052 | $3,458 | premium | 3.7% | (760) 340-3911 |
| 79 | ORTHOARKANSAS PA | LITTLE ROCK | AR | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 145 | 46 | $218,080 | $4,741 | premium | 13.3% | (501) 500-3500 |
| 80 | THOMAS S LOFTUS MD PA | AUSTIN | TX | NEUROSURGERY | 3 | 45 | $234,960 | $5,221 | premium | 1.9% | (512) 836-0900 |
| 81 | FLAGSTAFF CENTER FOR BONE AND JOINT DISORDERS | FLAGSTAFF | AZ | PHYSICIAN ASSISTANT | 27 | 45 | $276,266 | $6,139 | premium | 6.6% | (928) 773-2280 |
| 82 | SPINE CENTER LLC | BATON ROUGE | LA | PHYSICIAN ASSISTANT | 17 | 45 | $418,795 | $9,307 | premium | 5.5% | (833) 774-6327 |
| 83 | MHS PHYSICIANS OF TEXAS | HUMBLE | TX | NEUROLOGY | 114 | 45 | $185,803 | $4,129 | premium | 1.9% | (281) 319-8530 |
| 84 | NEUROSURGICAL GROUP OF TEXAS, LLP | HOUSTON | TX | NEUROSURGERY | 10 | 45 | $635,670 | $14,126 | premium | 1.9% | (713) 790-1211 |
| 85 | LCMS NEUROSURGICAL INSTITUTE OF LAKE CHARLES LLC | LAKE CHARLES | LA | NURSE PRACTITIONER | 10 | 44 | $236,498 | $5,375 | premium | 5.4% | (337) 494-4720 |
| 86 | BAYLOR COLLEGE OF MEDICINE | HOUSTON | TX | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1222 | 44 | $249,040 | $5,660 | premium | 1.8% | — |
| 87 | SACRED HEART HEALTH SYSTEM INC | PENSACOLA | FL | NURSE PRACTITIONER | 371 | 44 | $221,567 | $5,036 | premium | 1.8% | (850) 416-2400 |
| 88 | DAVID BARNETT, MD PA | ADDISON | TX | PHYSICIAN ASSISTANT | 2 | 44 | $338,947 | $7,703 | premium | 1.8% | (913) 387-0511 |
| 89 | THE COLUMBUS ORTHOPAEDIC CLINIC, P.A. | COLUMBUS | MS | NURSE PRACTITIONER | 47 | 43 | $784,750 | $18,250 | premium | 9.0% | (662) 328-1012 |
| 90 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 43 | $146,176 | $3,399 | premium | 5.5% | (803) 744-4900 |
| 91 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 42 | $316,722 | $7,541 | premium | 6.1% | (205) 934-3460 |
| 92 | CENTER FOR ORTHOPEDIC RESEARCH AND EDUCATION LLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 254 | 42 | $176,870 | $4,211 | premium | 6.1% | (866) 974-2673 |
| 93 | SOUTHERN OREGON NEUROSURGICAL AND SPINE ASSOCIATES, PC | MEDFORD | OR | PHYSICIAN ASSISTANT | 12 | 41 | $434,591 | $10,600 | premium | 14.1% | (541) 779-1672 |
| 94 | ORTHOPAEDIC INSTITUTE OF OHIO, INC | LIMA | OH | PHYSICIAN ASSISTANT | 75 | 41 | $119,729 | $2,920 | premium | 7.5% | (419) 222-6622 |
| 95 | TIDEWATER ORTHOPAEDIC ASSOCIATES INC. | HAMPTON | VA | PHYSICIAN ASSISTANT | 27 | 41 | $215,250 | $5,250 | premium | 4.9% | (757) 827-2480 |
| 96 | KEIPERSPINE PC | EUGENE | OR | NEUROSURGERY | 6 | 41 | $183,434 | $4,474 | premium | 14.1% | (541) 485-2357 |
| 97 | SPINE SURGERY ASSOCIATES PLLC | OKLAHOMA CITY | OK | NURSE PRACTITIONER | 5 | 40 | $119,680 | $2,992 | premium | 5.8% | (405) 242-4345 |
| 98 | BOCACARE INC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 199 | 40 | $303,226 | $7,581 | premium | 1.6% | (561) 955-7100 |
| 99 | ARLINGTON NEUROSURGEONS, PLLC | PLANO | TX | PHYSICIAN ASSISTANT | 46 | 39 | $212,952 | $5,460 | premium | 1.6% | (972) 596-6800 |
| 100 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 39 | $130,825 | $3,354 | premium | 5.0% | (803) 749-5101 |
Showing the top 100 of 410 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 →