93657 — Destruction of tissue of upper heart chamber through tube to treat abnormal heart rhythm
39,621 observed fee-for-service (49%) · ~41,093 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 | 93657 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 1,265 | $1,397,419 | $1,105 | premium | 16.9% | (415) 600-1020 |
| 2 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 1,062 | $2,217,456 | $2,088 | premium | 14.2% | (916) 983-7476 |
| 3 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 807 | $1,886,766 | $2,338 | premium | 42.5% | — |
| 4 | SENTARA MEDICAL GROUP | NORFOLK | VA | PHYSICIAN ASSISTANT | 1404 | 745 | $591,270 | $794 | premium | 31.9% | — |
| 5 | ST DAVIDS HEART AND VASCULAR PLLC | AUSTIN | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 199 | 655 | $775,628 | $1,184 | premium | 11.7% | (512) 899-2028 |
| 6 | NCHMD INC | NAPLES | FL | NEUROLOGY | 515 | 610 | $488,000 | $800 | premium | 10.6% | (239) 436-5100 |
| 7 | COASTAL CAROLINA MULTISPECIALTY ASSOCIATES LLC | CHARLESTON | SC | NURSE PRACTITIONER | 49 | 586 | $645,223 | $1,101 | premium | 25.0% | — |
| 8 | FLORIDA ELECTROPHYSIOLOGY ASSOCIATES PA | ATLANTIS | FL | CARDIAC ELECTROPHYSIOLOGY | 14 | 586 | $953,614 | $1,627 | premium | 10.2% | (561) 434-0353 |
| 9 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 535 | $598,414 | $1,119 | premium | 7.2% | (858) 455-9100 |
| 10 | OHH PHYSICIANS LLC | OKLAHOMA CITY | OK | INTERVENTIONAL CARDIOLOGY | 134 | 512 | $878,328 | $1,715 | premium | 62.2% | (405) 608-3800 |
| 11 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 492 | $2,656,800 | $5,400 | premium | 12.4% | (212) 263-9700 |
| 12 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 486 | $383,150 | $788 | premium | 28.4% | (615) 269-4545 |
| 13 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 482 | $872,420 | $1,810 | premium | 12.2% | (212) 241-4812 |
| 14 | CHS PHYSICIAN PARTNERS PC | ROSLYN | NY | PHYSICIAN ASSISTANT | 734 | 428 | $3,210,000 | $7,500 | premium | 10.8% | — |
| 15 | VIRTUA MEDICAL GROUP, PA | VOORHEES | NJ | PHYSICIAN ASSISTANT | 1662 | 404 | $523,988 | $1,297 | premium | 24.6% | (856) 247-7260 |
| 16 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 401 | $634,783 | $1,583 | premium | 24.7% | (847) 459-1160 |
| 17 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 386 | $420,173 | $1,089 | premium | 6.9% | — |
| 18 | CENTENNIAL HEART LLC | NASHVILLE | TN | NURSE PRACTITIONER | 121 | 368 | $402,368 | $1,093 | premium | 21.5% | (615) 515-1900 |
| 19 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 353 | $308,169 | $873 | premium | 21.3% | — |
| 20 | HEART RHYTHM CONSULTANTS PA | SARASOTA | FL | NURSE PRACTITIONER | 5 | 348 | $305,760 | $879 | premium | 6.1% | (941) 484-6758 |
| 21 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | INTERNAL MEDICINE | 1424 | 337 | $718,484 | $2,132 | premium | 4.5% | (310) 825-7922 |
| 22 | BAPTIST CARDIOLOGY, INC. | JACKSONVILLE | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 99 | 319 | $250,266 | $785 | premium | 5.6% | (904) 399-1171 |
| 23 | TRI-CITY CARDIOLOGY CONSULTANTS PC | MESA | AZ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 41 | 314 | $266,430 | $849 | premium | 16.3% | (480) 835-6100 |
| 24 | STONY BROOK INTERNISTS UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | HOSPITALIST | 414 | 298 | $566,200 | $1,900 | premium | 7.5% | (631) 444-1560 |
| 25 | WAKEMED SPECIALISTS GROUP LLC | RALEIGH | NC | PHYSICIAN ASSISTANT | 860 | 293 | $357,460 | $1,220 | premium | 16.9% | (919) 350-7270 |
| 26 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 272 | $375,632 | $1,381 | premium | 4.7% | (904) 308-6900 |
| 27 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 267 | $241,378 | $904 | premium | 11.4% | — |
| 28 | WHITE PLAINS PHYSICIAN SERVICES PC | WHITE PLAINS | NY | PHYSICIAN ASSISTANT | 383 | 267 | $516,143 | $1,933 | premium | 6.7% | (914) 681-0600 |
| 29 | CARDIOLOGY SPECIALISTS OF NORTH TEXAS PLLC | DALLAS | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 67 | 264 | $313,245 | $1,187 | premium | 4.7% | — |
| 30 | HOUSTON CARDIOVASCULAR ASSOC PA | HOUSTON | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 84 | 262 | $333,210 | $1,272 | premium | 4.7% | (713) 790-0841 |
| 31 | POUDRE VALLEY MEDICAL GROUP LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 2390 | 259 | $247,212 | $954 | premium | 36.3% | — |
| 32 | SPECIALTY ASSOCIATES OF WEST HOUSTON PLLC | HOUSTON | TX | PHYSICIAN ASSISTANT | 125 | 257 | $303,258 | $1,180 | premium | 4.6% | (281) 461-6830 |
| 33 | BAPTIST MEDICAL GROUP LLC | PENSACOLA | FL | PHYSICIAN ASSISTANT | 248 | 250 | $231,250 | $925 | premium | 4.4% | — |
| 34 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 250 | $283,664 | $1,135 | premium | 3.3% | (714) 871-3006 |
| 35 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 249 | $300,045 | $1,205 | premium | 3.3% | — |
| 36 | MIDWEST HEART AND VASCULAR SPECIALISTS LLC | OVERLAND PARK | KS | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 81 | 247 | $294,243 | $1,191 | premium | 28.1% | (816) 523-7088 |
| 37 | ST BERNARDS PHYSICIAN CLINICS INC | JONESBORO | AR | NURSE PRACTITIONER | 206 | 239 | $175,545 | $734 | premium | 25.6% | (870) 972-8181 |
| 38 | NORTHSIDE CARDIOVASCULAR PROFESSIONAL SERVICES, LLC | ATLANTA | GA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 144 | 237 | $218,751 | $923 | premium | 22.1% | (404) 851-8000 |
| 39 | TEXAS HEALTH PHYSICIANS GROUP | FORT WORTH | TX | PHYSICIAN ASSISTANT | 1350 | 237 | $303,123 | $1,279 | premium | 4.2% | (817) 281-2977 |
| 40 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 233 | $493,028 | $2,116 | premium | 5.9% | — |
| 41 | AFFINITY CARDIOVASCULAR SPECIALISTS LLC | BIRMINGHAM | AL | NURSE PRACTITIONER | 41 | 233 | $167,061 | $717 | premium | 30.3% | — |
| 42 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 231 | $297,022 | $1,286 | premium | 14.2% | — |
| 43 | ADVENTIST HEALTH PHYSICIANS NETWORK | HANFORD | CA | NURSE PRACTITIONER | 651 | 225 | $269,727 | $1,199 | premium | 3.0% | (559) 583-4695 |
| 44 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 222 | $354,142 | $1,595 | premium | 3.0% | (916) 681-8852 |
| 45 | NATIONAL PARK CARDIOLOGY SERVICES LLC | HOT SPRINGS | TN | NURSE PRACTITIONER | 5 | 213 | $164,223 | $771 | premium | 12.5% | (501) 625-3400 |
| 46 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 212 | $191,648 | $904 | premium | 9.0% | (803) 749-5101 |
| 47 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 211 | $125,756 | $596 | premium | 61.0% | (502) 928-1050 |
| 48 | FLORIDA HOSPITAL MEDICAL GROUP INC | MAITLAND | FL | PHYSICIAN ASSISTANT | 1634 | 208 | $200,304 | $963 | premium | 3.6% | (407) 200-2700 |
| 49 | VIRGINIA CARDIOVASCULAR SPECIALISTS | RICHMOND | VA | INTERVENTIONAL CARDIOLOGY | 56 | 202 | $222,200 | $1,100 | premium | 8.7% | (804) 282-2685 |
| 50 | MCLEOD REGIONAL MEDICAL CENTER OF THE PEE DEE INC | FLORENCE | SC | NURSE PRACTITIONER | 409 | 202 | $361,980 | $1,792 | premium | 8.6% | (843) 777-2000 |
| 51 | CHRISTUS TRINITY CLINIC | TYLER | TX | NURSE PRACTITIONER | 1495 | 198 | $250,866 | $1,267 | premium | 3.5% | (903) 606-5560 |
| 52 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 192 | $211,392 | $1,101 | premium | 2.6% | (760) 340-3911 |
| 53 | INOVA HEALTH CARE SERVICES | FALLS CHURCH | VA | NURSE PRACTITIONER | 1818 | 190 | $237,386 | $1,249 | premium | 8.1% | — |
| 54 | ANMED HEALTH | ANDERSON | SC | FAMILY PRACTICE | 343 | 186 | $207,576 | $1,116 | premium | 7.9% | — |
| 55 | MISSION HEALTH COMMUNITY MULTISPECIALTY PROVIDERS LLC | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 593 | 184 | $232,730 | $1,265 | premium | 10.6% | (828) 213-1740 |
| 56 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 180 | $165,240 | $918 | premium | 19.3% | (479) 571-4338 |
| 57 | ENLOE MEDICAL CENTER | CHICO | PA | DIAGNOSTIC RADIOLOGY | 362 | 171 | $109,611 | $641 | premium | 10.3% | (530) 332-4470 |
| 58 | BON SECOURS ST MARYS HOSPITAL OF RICHMOND LLC | RICHMOND | MA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 67 | 170 | $147,050 | $865 | premium | 9.9% | (804) 288-3123 |
| 59 | VIRGINIA CARDIOVASCULAR SPECIALISTS | RICHMOND | MN | INTERVENTIONAL CARDIOLOGY | 56 | 164 | $180,400 | $1,100 | premium | 47.4% | (804) 282-2685 |
| 60 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 155 | $255,285 | $1,647 | premium | 8.9% | (919) 684-8111 |
| 61 | PROVIDENCE HEALTH AND SERVICES WASHINGTON | OLYMPIA | WA | FAMILY PRACTICE | 477 | 155 | $144,460 | $932 | premium | 17.9% | (360) 493-4083 |
| 62 | ST VINCENT INFIRMARY MEDICAL CENTER | LITTLE ROCK | AR | NURSE PRACTITIONER | 47 | 154 | $102,410 | $665 | premium | 16.5% | (501) 255-6000 |
| 63 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 152 | $242,592 | $1,596 | premium | 6.5% | (803) 744-4900 |
| 64 | PACIFIC CENTRAL COAST HEALTH CENTERS | SANTA MARIA | CA | PHYSICIAN ASSISTANT | 249 | 150 | $131,098 | $874 | premium | 2.0% | (805) 349-8514 |
| 65 | VANDERBILT UNIVERSITY MEDICAL CENTER | NASHVILLE | TN | NURSE PRACTITIONER | 3394 | 150 | $244,725 | $1,632 | premium | 8.8% | (615) 322-5000 |
| 66 | HEARTPLACE PLLC | PLANO | TX | INTERVENTIONAL CARDIOLOGY | 93 | 148 | $150,960 | $1,020 | premium | 2.6% | (972) 985-8838 |
| 67 | PIEDMONT CARDIOLOGY OF ATLANTA, LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 477 | 148 | $217,310 | $1,468 | premium | 13.8% | (404) 605-5000 |
| 68 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 147 | $256,180 | $1,743 | premium | 2.0% | (310) 423-0674 |
| 69 | PHYSICIAN GROUPS LC | SAINT LOUIS | MO | NURSE PRACTITIONER | 516 | 146 | $169,944 | $1,164 | premium | 25.7% | (314) 273-0195 |
| 70 | MUSC COMMUNITY PHYSICIANS | ORANGEBURG | SC | NURSE PRACTITIONER | 1307 | 145 | $474,592 | $3,273 | premium | 6.2% | (803) 395-3400 |
| 71 | FRANCISCAN MEDICAL GROUP | TACOMA | WA | PHYSICIAN ASSISTANT | 1407 | 143 | $152,632 | $1,067 | premium | 16.5% | (253) 428-2200 |
| 72 | EMERGENCY AND ACUTE CARE MEDICAL CORPORATION | SAN DIEGO | CA | INTERNAL MEDICINE | 450 | 142 | $102,098 | $719 | premium | 1.9% | (858) 939-3400 |
| 73 | TMH PHYSICIAN ASSOCIATES PLLC | HOUSTON | TX | NURSE PRACTITIONER | 1930 | 142 | $232,880 | $1,640 | premium | 2.5% | (713) 266-9955 |
| 74 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 138 | $319,332 | $2,314 | premium | 19.4% | (734) 763-5459 |
| 75 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 135 | $213,975 | $1,585 | premium | 3.4% | (212) 746-5454 |
| 76 | BAYCARE MEDICAL GROUP, INC. | CLEARWATER | FL | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1526 | 134 | $103,180 | $770 | premium | 2.3% | (727) 725-5060 |
| 77 | SAINT ALPHONSUS REGIONAL MEDICAL CENTER INC | BOISE | ID | PHYSICIAN ASSISTANT | 647 | 134 | $171,386 | $1,279 | premium | 39.8% | — |
| 78 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 133 | $352,317 | $2,649 | premium | 7.7% | (704) 667-1000 |
| 79 | SANSUM CLINIC | SANTA BARBARA | CA | INTERNAL MEDICINE | 322 | 132 | $180,308 | $1,366 | premium | 1.8% | (805) 681-7500 |
| 80 | CARDIOVASCULAR ASSOCIATES OF THE DELAWARE VALLEY,P A | HADDON HEIGHTS | PA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 94 | 131 | $113,708 | $868 | premium | 7.9% | (856) 546-3003 |
| 81 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 131 | $293,026 | $2,237 | premium | 8.1% | — |
| 82 | CARDIOLOGY CLINIC OF SAN ANTONIO, PLLC | SAN ANTONIO | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 124 | 130 | $135,018 | $1,039 | premium | 2.3% | (210) 271-3204 |
| 83 | ORANGE COUNTY HEART INSTITUTE AND RESEARCH CENTER A MEDICAL GROUP | ORANGE | CA | INTERVENTIONAL CARDIOLOGY | 13 | 128 | $79,616 | $622 | premium | 1.7% | 71456433001157 |
| 84 | INTERVENTIONAL CARDIAC CONSULTANTS PLC | HUDSON | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 7 | 127 | $76,200 | $600 | premium | 2.2% | (727) 862-3202 |
| 85 | UNIVERSITY MEDICAL SERVICE ASSOCIATION INC | TAMPA | FL | NURSE PRACTITIONER | 814 | 126 | $138,312 | $1,098 | premium | 2.2% | — |
| 86 | MEDICAL FOUNDATION OF CENTRAL MISSISSIPPI INC | JACKSON | GA | NURSE PRACTITIONER | 266 | 125 | $96,375 | $771 | premium | 11.6% | (601) 292-4261 |
| 87 | BHS PHYSICIANS NETWORK, INC | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 696 | 124 | $149,076 | $1,202 | premium | 2.2% | (210) 614-7414 |
| 88 | PREMIER CARDIOLOGY INC | NEWPORT BEACH | CA | PHYSICIAN ASSISTANT | 7 | 122 | $64,050 | $525 | premium | 1.6% | (949) 478-7373 |
| 89 | YAVAPAI REGIONAL MEDICAL CENTER PHYSICIAN CARE LLC | PRESCOTT | AZ | NURSE PRACTITIONER | 120 | 120 | $95,318 | $794 | premium | 6.2% | (928) 771-3704 |
| 90 | CARDIOLOGY ASSOCIATES OF MOBILE INC | MOBILE | AL | PHYSICIAN ASSISTANT | 52 | 119 | $59,500 | $500 | premium | 15.5% | (251) 460-0078 |
| 91 | HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC | BOSTON | MA | INTERNAL MEDICINE | 1689 | 119 | $170,969 | $1,437 | premium | 6.9% | (781) 983-9088 |
| 92 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 118 | $166,558 | $1,412 | premium | 3.0% | (914) 241-1050 |
| 93 | ST LUKES CLINIC-TREASURE VALLEY LLC | BOISE | ID | PHYSICIAN ASSISTANT | 1159 | 118 | $81,386 | $690 | premium | 35.0% | (208) 381-4210 |
| 94 | SJHMC PHYSICIAN SERVICES | PHOENIX | AZ | NURSE PRACTITIONER | 690 | 114 | $138,282 | $1,213 | premium | 5.9% | (602) 406-6017 |
| 95 | PROVIDENCE HEALTH AND SERVICES MT | MISSOULA | MT | PHYSICIAN ASSISTANT | 345 | 113 | $105,316 | $932 | premium | 43.6% | (406) 327-1900 |
| 96 | BON SECOURS MEDICAL GROUP GREENVILLE SPECIALTY CARE LLC | GREENVILLE | SC | NURSE PRACTITIONER | 288 | 113 | $99,666 | $882 | premium | 4.8% | (864) 255-1901 |
| 97 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 111 | $333,000 | $3,000 | premium | 1.5% | (650) 723-4000 |
| 98 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 110 | $150,150 | $1,365 | premium | 6.6% | (215) 662-2777 |
| 99 | SHANNON CLINIC | SAN ANGELO | TX | NURSE PRACTITIONER | 515 | 110 | $140,140 | $1,274 | premium | 2.0% | (325) 747-1511 |
| 100 | CYPRESS CARDIOVASCULAR INSTITUTE PLLC | CYPRESS | TX | INTERVENTIONAL CARDIOLOGY | 6 | 109 | $140,130 | $1,286 | premium | 1.9% | (281) 955-9158 |
Showing the top 100 of 396 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 →