33533 — Coronary artery bypass using artery graft, 1 graft
45,485 observed fee-for-service (49%) · ~46,601 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 | 33533 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | CARDIOTHORACIC AND VASCULAR SURGICAL ASSOCIATES S C | OAK LAWN | IL | PHYSICIAN ASSISTANT | 48 | 751 | $6,797,101 | $9,051 | premium | 29.8% | (708) 684-8000 |
| 2 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 545 | $3,810,701 | $6,992 | premium | 11.7% | — |
| 3 | SMH PHYSICIAN SERVICES INC | SARASOTA | FL | PHYSICIAN ASSISTANT | 766 | 503 | $2,128,090 | $4,231 | premium | 9.0% | — |
| 4 | CARDIOTHORACIC AND VASCULAR SURGICAL ASSOCIATES PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 89 | 481 | $1,774,782 | $3,690 | premium | 8.6% | (904) 398-3888 |
| 5 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 404 | $1,818,808 | $4,502 | premium | 22.6% | (615) 269-4545 |
| 6 | PRACTICE ASSOCIATES MEDICAL GROUP | MORRISTOWN | NJ | NURSE PRACTITIONER | 1404 | 397 | $1,975,443 | $4,976 | premium | 28.0% | (973) 971-5596 |
| 7 | SENTARA MEDICAL GROUP | NORFOLK | VA | PHYSICIAN ASSISTANT | 1404 | 391 | $1,363,429 | $3,487 | premium | 24.2% | — |
| 8 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 386 | $2,080,782 | $5,391 | premium | 8.2% | (916) 681-8852 |
| 9 | OHH PHYSICIANS LLC | OKLAHOMA CITY | OK | INTERVENTIONAL CARDIOLOGY | 134 | 364 | $1,915,004 | $5,261 | premium | 39.5% | (405) 608-3800 |
| 10 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 357 | $3,150,873 | $8,826 | premium | 16.3% | — |
| 11 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 340 | $1,039,674 | $3,058 | premium | 26.9% | (502) 928-1050 |
| 12 | BANNER PHYSICIAN SPECIALISTS ARIZONA LLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 354 | 338 | $1,107,854 | $3,278 | premium | 23.7% | (623) 832-4000 |
| 13 | CARDIAC SURGICAL ASSOCIATES LLC | RICHMOND | VA | NURSE PRACTITIONER | 20 | 312 | $1,966,413 | $6,303 | premium | 19.3% | (804) 320-2751 |
| 14 | CARDIAC SURGERY ASSOCIATES SC | NAPERVILLE | IL | PHYSICIAN ASSISTANT | 48 | 304 | $1,742,142 | $5,731 | premium | 12.0% | (630) 527-3083 |
| 15 | PHYSICIAN ASSISTANT SERVICES OF TEXAS L.L.P | FORT WORTH | TX | PHYSICIAN ASSISTANT | 15 | 304 | $302,841 | $996 | premium | 6.5% | (817) 336-2100 |
| 16 | FLORIDA HOSPITAL MEDICAL GROUP INC | MAITLAND | FL | PHYSICIAN ASSISTANT | 1634 | 304 | $1,111,340 | $3,656 | premium | 5.5% | (407) 200-2700 |
| 17 | PROMEDICA CENTRAL PHYSICIANS | TOLEDO | OH | PHYSICIAN ASSISTANT | 794 | 301 | $812,618 | $2,700 | premium | 14.7% | (419) 291-2003 |
| 18 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 287 | $3,027,684 | $10,549 | premium | 11.4% | — |
| 19 | OHIOHEALTH CORPORATION | COLUMBUS | OH | PHYSICIAN ASSISTANT | 2282 | 278 | $1,119,934 | $4,029 | premium | 13.5% | — |
| 20 | NOVANT HEALTH MEDICAL GROUP, LLC | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 2389 | 269 | $974,642 | $3,623 | premium | 13.8% | (704) 384-8200 |
| 21 | ORLANDO HEALTH MEDICAL GROUP INC | ORLANDO | FL | PHYSICIAN ASSISTANT | 2145 | 266 | $1,566,228 | $5,888 | premium | 4.8% | (407) 896-1100 |
| 22 | GWINNETT PHYSICIAN GROUP, LLC | LAWRENCEVILLE | GA | OBSTETRICS/GYNECOLOGY | 120 | 260 | $1,453,920 | $5,592 | premium | 19.5% | (678) 312-3290 |
| 23 | ST VINCENT MEDICAL GROUP INC | INDIANAPOLIS | IN | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 718 | 247 | $2,006,693 | $8,124 | premium | 16.4% | (317) 338-2345 |
| 24 | AURORA MEDICAL GROUP, INC. | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 3696 | 245 | $5,452,258 | $22,254 | premium | 23.4% | (414) 421-8400 |
| 25 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 242 | $2,037,076 | $8,418 | premium | 12.4% | (704) 667-1000 |
| 26 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 242 | $3,266,846 | $13,499 | premium | 11.8% | — |
| 27 | UNIVERSITY OF MARYLAND ST JOSEPH MEDICAL GROUP LLC | TOWSON | MD | NURSE PRACTITIONER | 292 | 239 | $888,348 | $3,717 | premium | 36.1% | (410) 337-4877 |
| 28 | IMC-CARDIO-THORACIC AND VASCULAR SURGICAL ASSOCIATES LLC | MOBILE | AL | PHYSICIAN ASSISTANT | 22 | 237 | $686,925 | $2,898 | premium | 17.0% | — |
| 29 | CHRISTUS TRINITY CLINIC | TYLER | TX | NURSE PRACTITIONER | 1495 | 225 | $1,205,233 | $5,357 | premium | 4.8% | (903) 606-5560 |
| 30 | PIEDMONT CARDIOLOGY OF ATLANTA, LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 477 | 225 | $1,287,044 | $5,720 | premium | 16.9% | (404) 605-5000 |
| 31 | PINNACLE HEALTH CARDIOVASCULAR INSTITUTE INC | MECHANICSBURG | PA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 113 | 221 | $775,792 | $3,510 | premium | 9.9% | (717) 731-0101 |
| 32 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 217 | $1,397,760 | $6,441 | premium | 4.6% | (916) 983-7476 |
| 33 | COMMUNITY MEDICAL ASSOCIATES INC | LOUISVILLE | KY | NURSE PRACTITIONER | 1377 | 212 | $889,158 | $4,194 | premium | 16.7% | (502) 937-2209 |
| 34 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 207 | $1,137,336 | $5,494 | premium | 4.4% | (415) 600-1020 |
| 35 | NORTH MISSISSIPPI MEDICAL CENTER, INC. | TUPELO | MS | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 361 | 206 | $912,639 | $4,430 | premium | 36.7% | (662) 377-3258 |
| 36 | INTEGRATED CARDIOLOGY GROUP LLC | LINCOLN | NE | PHYSICIAN ASSISTANT | 78 | 206 | $445,755 | $2,164 | premium | 29.1% | (402) 483-3333 |
| 37 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 206 | $756,334 | $3,672 | premium | 88.8% | (801) 261-8346 |
| 38 | ALLINA HEALTH SYSTEM | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 3855 | 205 | $842,037 | $4,107 | premium | 33.0% | (612) 863-4000 |
| 39 | HH HEART CENTER, LLC | HUNTSVILLE | AL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 90 | 199 | $1,138,280 | $5,720 | premium | 14.2% | (256) 265-2372 |
| 40 | ASHEVILLE HEART PA | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 19 | 197 | $1,045,506 | $5,307 | premium | 10.1% | 82825811211122 |
| 41 | CHRISTIANA CARE HEALTH SERVICES INC | NEWARK | DE | PHYSICIAN ASSISTANT | 1537 | 195 | $982,583 | $5,039 | premium | 66.8% | — |
| 42 | FRANCISCAN MEDICAL GROUP | TACOMA | WA | PHYSICIAN ASSISTANT | 1407 | 188 | $1,006,951 | $5,356 | premium | 23.4% | (253) 428-2200 |
| 43 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 186 | $2,244,281 | $12,066 | premium | 13.3% | (617) 724-0287 |
| 44 | ASANTE PHYSICIAN PARTNERS | GRANTS PASS | OR | NURSE PRACTITIONER | 221 | 184 | $556,036 | $3,022 | premium | 27.1% | (541) 507-2290 |
| 45 | LOURDES PHYSICIAN GROUP LLC | LAFAYETTE | LA | NURSE PRACTITIONER | 154 | 184 | $668,187 | $3,631 | premium | 17.5% | (337) 470-2990 |
| 46 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 184 | $1,519,308 | $8,257 | premium | 13.2% | (205) 934-3460 |
| 47 | DEACONESS SPECIALTY PHYSICIANS, INC | NEWBURGH | IN | NURSE PRACTITIONER | 207 | 184 | $906,255 | $4,925 | premium | 12.2% | (812) 842-2737 |
| 48 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 183 | $678,559 | $3,708 | premium | 12.0% | (803) 744-4900 |
| 49 | WEST FLORIDA CARDIOLOGY NETWORK, LLC | SAINT PETERSBURG | FL | PHYSICIAN ASSISTANT | 84 | 181 | $1,243,938 | $6,873 | premium | 3.2% | — |
| 50 | CHI HEALTH CLINIC SPECIALTY LLC | LINCOLN | NE | NURSE PRACTITIONER | 309 | 178 | $868,284 | $4,878 | premium | 25.1% | (402) 219-8000 |
| 51 | HEART HOSPITAL OF SOUTH DAKOTA LLC | SIOUX FALLS | SD | NURSE PRACTITIONER | 67 | 176 | $147,872 | $840 | premium | 59.7% | (605) 977-7000 |
| 52 | MAINEHEALTH | PORTLAND | ME | NURSE PRACTITIONER | 2574 | 175 | $418,033 | $2,389 | premium | 46.8% | (207) 885-9905 |
| 53 | WAKEMED SPECIALISTS GROUP LLC | RALEIGH | NC | PHYSICIAN ASSISTANT | 860 | 172 | $1,065,196 | $6,193 | premium | 8.8% | (919) 350-7270 |
| 54 | LAFAYETTE HEALTH VENTURES INC | LAFAYETTE | LA | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 293 | 168 | $774,524 | $4,610 | premium | 16.0% | (337) 289-7374 |
| 55 | HENDRICK PROVIDER NETWORK | ABILENE | TX | PHYSICIAN ASSISTANT | 249 | 167 | $494,767 | $2,963 | premium | 3.6% | (325) 672-4372 |
| 56 | BAYCARE MEDICAL GROUP, INC. | CLEARWATER | FL | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1526 | 165 | $784,410 | $4,754 | premium | 3.0% | (727) 725-5060 |
| 57 | APPLEDORE MEDICAL GROUP INC | PORTSMOUTH | NH | PHYSICIAN ASSISTANT | 202 | 164 | $817,890 | $4,987 | premium | 39.4% | (603) 334-2065 |
| 58 | PREMIER HEALTH SPECIALISTS INC | DAYTON | OH | PHYSICIAN ASSISTANT | 574 | 164 | $574,296 | $3,502 | premium | 8.0% | — |
| 59 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 164 | $1,603,129 | $9,775 | premium | 7.4% | — |
| 60 | NORTH CAROLINA MG LLC | RALEIGH | NC | PHYSICIAN ASSISTANT | 674 | 161 | $616,754 | $3,831 | premium | 8.3% | (919) 881-0160 |
| 61 | SOUTHCOAST PHYSICIANS GROUP INC | FALL RIVER | MA | NURSE PRACTITIONER | 868 | 161 | $971,760 | $6,036 | premium | 11.5% | (508) 973-5919 |
| 62 | PHOENIX CARDIAC SURGERY PC | PHOENIX | AZ | THORACIC SURGERY | 11 | 160 | $760,320 | $4,752 | premium | 11.2% | (602) 253-9168 |
| 63 | MEMORIALCARE MEDICAL FOUNDATION | LONG BEACH | CA | FAMILY PRACTICE | 549 | 159 | $677,942 | $4,264 | premium | 3.4% | (562) 346-2222 |
| 64 | CARDIOLOGY CLINIC OF SAN ANTONIO, PLLC | SAN ANTONIO | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 124 | 159 | $874,839 | $5,502 | premium | 3.4% | (210) 271-3204 |
| 65 | SYNERGY CT SURGERY PARTNERSHIP | UPLAND | CA | PHYSICIAN ASSISTANT | 17 | 157 | $537,060 | $3,421 | premium | 3.4% | (909) 579-6721 |
| 66 | COOPER SURGICAL ASSOCIATES, PA | CAMDEN | NJ | PHYSICIAN ASSISTANT | 303 | 157 | $1,547,863 | $9,859 | premium | 11.1% | (856) 270-4100 |
| 67 | NORTH TEXAS HEART SURGERY CENTER, PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 15 | 156 | $951,909 | $6,102 | premium | 3.3% | (972) 566-4866 |
| 68 | PROVIDENCE HEALTH AND SERVICES MT | MISSOULA | MT | PHYSICIAN ASSISTANT | 345 | 151 | $696,700 | $4,614 | premium | 43.6% | (406) 327-1900 |
| 69 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 151 | $1,316,999 | $8,722 | premium | 6.8% | (570) 271-6144 |
| 70 | COOKEVILLE REGIONAL MEDICAL GROUP INC | COOKEVILLE | TN | NURSE PRACTITIONER | 54 | 150 | $600,000 | $4,000 | premium | 8.4% | (931) 783-2143 |
| 71 | JACK STEPHENS HEART INSTITUTE LLC | LITTLE ROCK | AR | CARDIAC SURGERY | 6 | 150 | $519,780 | $3,465 | premium | 19.8% | (501) 666-2894 |
| 72 | CATHOLIC HEALTH INITIATIVES-IOWA CORP | WEST DES MOINES | IA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 113 | 147 | $518,161 | $3,525 | premium | 16.9% | (515) 358-8000 |
| 73 | MID-ATLANTIC SURGICAL ASSOC. | NEPTUNE | NJ | CARDIAC SURGERY | 5 | 146 | $1,463,644 | $10,025 | premium | 10.3% | (732) 776-4622 |
| 74 | BON SECOURS MEDICAL GROUP RICHMOND SPECIALTY CARE LLC | RICHMOND | VA | NURSE PRACTITIONER | 352 | 145 | $828,675 | $5,715 | premium | 9.0% | (804) 764-6000 |
| 75 | FLORIDA HOSPITAL PHYSICIAN GROUP INC | TAMPA | FL | DIAGNOSTIC RADIOLOGY | 891 | 145 | $708,239 | $4,884 | premium | 2.6% | (813) 615-7075 |
| 76 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 144 | $569,523 | $3,955 | premium | 9.4% | — |
| 77 | RUTGERS HEALTH-RWJ NEUROSURGERY FACULTY | NEW BRUNSWICK | NJ | PHYSICIAN ASSISTANT | 192 | 143 | $1,679,678 | $11,746 | premium | 10.1% | (732) 828-3000 |
| 78 | CENTRAL COAST CARDIOTHORACIC SURGICAL ASSOCIATES-A MEDICAL GROUP | PISMO BEACH | CA | THORACIC SURGERY | 4 | 143 | $140,861 | $985 | premium | 3.1% | (805) 556-6001 |
| 79 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 141 | $422,939 | $3,000 | premium | 10.1% | — |
| 80 | NCHMD INC | NAPLES | FL | NEUROLOGY | 515 | 138 | $432,545 | $3,134 | premium | 2.5% | (239) 436-5100 |
| 81 | PHYSICIANS CLINIC INC | OMAHA | NE | PHYSICIAN ASSISTANT | 561 | 137 | $509,104 | $3,716 | premium | 19.3% | (402) 354-8163 |
| 82 | FLORIDA HOSPITAL HEALTHCARE PARTNERS, INC | DAYTONA BEACH | FL | PHYSICIAN ASSISTANT | 588 | 136 | $641,811 | $4,719 | premium | 2.4% | (386) 231-6000 |
| 83 | HEART SURGEONS OF KANSAS CITY INC | KANSAS CITY | MO | NURSE PRACTITIONER | 36 | 134 | $429,589 | $3,206 | premium | 11.6% | (816) 932-2000 |
| 84 | LESTER E COX MEDICAL CENTERS | SPRINGFIELD | MO | NURSE PRACTITIONER | 333 | 134 | $949,204 | $7,084 | premium | 11.6% | (417) 269-6000 |
| 85 | SJHMC PHYSICIAN SERVICES | PHOENIX | AZ | NURSE PRACTITIONER | 690 | 133 | $655,924 | $4,932 | premium | 9.3% | (602) 406-6017 |
| 86 | HONORHEALTH AMBULATORY | SCOTTSDALE | AZ | PHYSICIAN ASSISTANT | 601 | 131 | $689,303 | $5,262 | premium | 9.2% | — |
| 87 | WESLEY PHYSICIANS MEDICAL SPECIALTIES LLC | WICHITA | KS | FAMILY PRACTICE | 51 | 130 | $533,520 | $4,104 | premium | 17.7% | (316) 260-1690 |
| 88 | UMC PHYSICIANS | LUBBOCK | TX | NURSE PRACTITIONER | 107 | 129 | $665,787 | $5,161 | premium | 2.8% | (806) 761-0450 |
| 89 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 125 | $747,179 | $5,977 | premium | 8.8% | (800) 603-0558 |
| 90 | LANCASTER GENERAL HOSPITAL | LANCASTER | PA | NURSE PRACTITIONER | 511 | 125 | $470,139 | $3,761 | premium | 5.6% | (267) 857-7751 |
| 91 | LEE HEALTH SYSTEM INC | FORT MYERS | FL | NURSE PRACTITIONER | 1370 | 123 | $636,658 | $5,176 | premium | 2.2% | (239) 343-9888 |
| 92 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 123 | $1,298,960 | $10,561 | premium | 8.8% | (617) 732-5500 |
| 93 | COMMONWEALTH HEALTH CORPORATION, INC. | BOWLING GREEN | KY | NURSE PRACTITIONER | 273 | 122 | $341,741 | $2,801 | premium | 9.6% | — |
| 94 | WAKE FOREST UNIVERSITY HEALTH SCIENCES | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 2609 | 122 | $747,697 | $6,129 | premium | 6.3% | (336) 713-9800 |
| 95 | ARKANSAS HEART HOSPITAL LLC | LITTLE ROCK | AR | NURSE PRACTITIONER | 83 | 121 | $426,404 | $3,524 | premium | 15.9% | (501) 664-5860 |
| 96 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 121 | $1,008,412 | $8,334 | premium | 2.2% | (904) 953-2000 |
| 97 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 121 | $773,155 | $6,390 | premium | 8.7% | (508) 334-1000 |
| 98 | GRAND STRAND SURGICAL SPECIALISTS LLC | MYRTLE BEACH | SC | PHYSICIAN ASSISTANT | 51 | 119 | $681,311 | $5,725 | premium | 7.8% | (843) 848-1440 |
| 99 | GENERAL PHYSICIAN SUB II PLLC | BUFFALO | NY | PHYSICIAN ASSISTANT | 12 | 119 | $224,200 | $1,884 | premium | 5.4% | (716) 859-7607 |
| 100 | THE EMORY CLINIC INC | ATLANTA | GA | NURSE PRACTITIONER | 3484 | 118 | $1,668,611 | $14,141 | premium | 8.9% | (404) 778-7525 |
Showing the top 100 of 557 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 →