93460 — Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist
30,694 observed fee-for-service (49%) · ~31,706 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 | 93460 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ATLANTICARE PHYSICIAN GROUP PA | EGG HARBOR TOWNSHIP | NJ | NURSE PRACTITIONER | 507 | 417 | $324,009 | $777 | premium | 18.8% | — |
| 2 | CHS PHYSICIAN PARTNERS PC | ROSLYN | NY | PHYSICIAN ASSISTANT | 734 | 394 | $535,018 | $1,358 | premium | 10.3% | — |
| 3 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 361 | $1,234,985 | $3,421 | premium | 9.4% | (212) 263-9700 |
| 4 | ST DAVIDS HEART AND VASCULAR PLLC | AUSTIN | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 199 | 354 | $440,016 | $1,243 | premium | 11.9% | (512) 899-2028 |
| 5 | UNIVERSITY OF MARYLAND ST JOSEPH MEDICAL GROUP LLC | TOWSON | MD | NURSE PRACTITIONER | 292 | 312 | $356,616 | $1,143 | premium | 30.2% | (410) 337-4877 |
| 6 | SENTARA MEDICAL GROUP | NORFOLK | VA | PHYSICIAN ASSISTANT | 1404 | 307 | $212,845 | $693 | premium | 19.7% | — |
| 7 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 298 | $455,020 | $1,527 | premium | 19.5% | (704) 667-1000 |
| 8 | PIEDMONT CARDIOLOGY OF ATLANTA, LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 477 | 298 | $398,426 | $1,337 | premium | 26.3% | (404) 605-5000 |
| 9 | CARDIOLOGY CONSULTANTS OF PHILADELPHIA PC | PHILADELPHIA | PA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 143 | 294 | $808,500 | $2,750 | premium | 7.9% | (215) 463-5333 |
| 10 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 264 | $306,833 | $1,162 | premium | 55.3% | (801) 261-8346 |
| 11 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 246 | $590,339 | $2,400 | premium | 14.3% | — |
| 12 | VIRTUA MEDICAL GROUP, PA | VOORHEES | NJ | PHYSICIAN ASSISTANT | 1662 | 242 | $296,450 | $1,225 | premium | 10.9% | (856) 247-7260 |
| 13 | FRANCISCAN MEDICAL GROUP | TACOMA | WA | PHYSICIAN ASSISTANT | 1407 | 237 | $249,879 | $1,054 | premium | 23.2% | (253) 428-2200 |
| 14 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 224 | $167,699 | $749 | premium | 18.9% | (615) 269-4545 |
| 15 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 218 | $471,606 | $2,163 | premium | 5.5% | (916) 983-7476 |
| 16 | SETON FAMILY OF DOCTORS | AUSTIN | TX | PHYSICIAN ASSISTANT | 804 | 206 | $254,131 | $1,234 | premium | 6.9% | (512) 324-7300 |
| 17 | CLINICAL HEALTH CARE ASSOCIATES OF NEW JERSEY PC | CHERRY HILL | PA | DIAGNOSTIC RADIOLOGY | 825 | 205 | $274,700 | $1,340 | premium | 5.5% | (856) 433-2535 |
| 18 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 201 | $271,350 | $1,350 | premium | 5.2% | (212) 746-5454 |
| 19 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 201 | $196,377 | $977 | premium | 5.1% | (760) 340-3911 |
| 20 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 199 | $337,902 | $1,698 | premium | 22.8% | (205) 934-3460 |
| 21 | WYOMING CARDIOPULMONARY SERVICES PC | CASPER | WY | INTERVENTIONAL CARDIOLOGY | 11 | 196 | $1,593,330 | $8,129 | premium | 80.3% | (307) 266-3174 |
| 22 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 196 | $399,783 | $2,040 | premium | 5.1% | — |
| 23 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 196 | $158,564 | $809 | premium | 5.3% | — |
| 24 | HH HEART CENTER, LLC | HUNTSVILLE | AL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 90 | 191 | $544,350 | $2,850 | premium | 21.9% | (256) 265-2372 |
| 25 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 190 | $212,030 | $1,116 | premium | 5.1% | — |
| 26 | TRIHEALTH H LLC | CINCINNATI | OH | OBSTETRICS/GYNECOLOGY | 853 | 183 | $163,785 | $895 | premium | 11.5% | (513) 246-7000 |
| 27 | HARTFORD HEALTHCARE MEDICAL GROUP SPECIALISTS PLLC | STORRS | CT | PHYSICIAN ASSISTANT | 1493 | 182 | $315,041 | $1,731 | premium | 44.8% | (860) 724-2579 |
| 28 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 181 | $300,460 | $1,660 | premium | 4.7% | (212) 241-4812 |
| 29 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 170 | $261,460 | $1,538 | premium | 9.9% | (708) 216-8372 |
| 30 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 168 | $662,004 | $3,940 | premium | 4.5% | (570) 271-6144 |
| 31 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 163 | $199,023 | $1,221 | premium | 3.1% | (904) 308-6900 |
| 32 | WELLSTAR MEDICAL GROUP LLC | MARIETTA | GA | NURSE PRACTITIONER | 3060 | 161 | $187,203 | $1,163 | premium | 14.2% | (770) 422-2004 |
| 33 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 160 | $237,440 | $1,484 | premium | 4.0% | (877) 827-7463 |
| 34 | PACIFIC CENTRAL COAST HEALTH CENTERS | SANTA MARIA | CA | PHYSICIAN ASSISTANT | 249 | 158 | $199,048 | $1,260 | premium | 4.0% | (805) 349-8514 |
| 35 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 156 | $274,238 | $1,758 | premium | 3.9% | (415) 600-1020 |
| 36 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 156 | $212,786 | $1,364 | premium | 9.1% | — |
| 37 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 156 | $205,110 | $1,315 | premium | 5.2% | — |
| 38 | THE CHRIST HOSPITAL CARDIOVASCULAR ASSOCIATES LLC | CINCINNATI | OH | NURSE PRACTITIONER | 144 | 152 | $141,016 | $928 | premium | 9.6% | — |
| 39 | PENN STATE HEALTH MEDICAL GROUP LLC | CAMP HILL | PA | PHYSICIAN ASSISTANT | 700 | 151 | $345,601 | $2,289 | premium | 4.1% | (717) 972-4250 |
| 40 | UTMB FACULTY GROUP PRACTICE | GALVESTON | TX | NURSE PRACTITIONER | 1068 | 150 | $212,383 | $1,416 | premium | 5.0% | (409) 772-2222 |
| 41 | CARDIOVASCULAR ASSOCIATES OF THE DELAWARE VALLEY,P A | HADDON HEIGHTS | NJ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 94 | 147 | $121,422 | $826 | premium | 6.6% | (856) 546-3003 |
| 42 | PINNACLE HEALTH CARDIOVASCULAR INSTITUTE INC | MECHANICSBURG | PA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 113 | 147 | $120,290 | $818 | premium | 4.0% | (717) 731-0101 |
| 43 | SOUTH BROWARD HOSPITAL DISTRICT | HOLLYWOOD | FL | NURSE PRACTITIONER | 665 | 146 | $271,298 | $1,858 | premium | 2.8% | (954) 265-7750 |
| 44 | CMC DEPARTMENT OF MEDICINE GROUP PA | CAMDEN | NJ | NURSE PRACTITIONER | 474 | 142 | $379,186 | $2,670 | premium | 6.4% | — |
| 45 | INOVA HEALTH CARE SERVICES | FALLS CHURCH | VA | NURSE PRACTITIONER | 1818 | 140 | $154,700 | $1,105 | premium | 9.0% | — |
| 46 | PHYSICIAN GROUPS LC | SAINT LOUIS | MO | NURSE PRACTITIONER | 516 | 133 | $139,610 | $1,050 | premium | 18.5% | (314) 273-0195 |
| 47 | OSF MULTI-SPECIALTY GROUP | PEORIA | IL | NURSE PRACTITIONER | 2091 | 128 | $286,208 | $2,236 | premium | 7.5% | (309) 683-5050 |
| 48 | CARDIOLOGY CLINIC OF SAN ANTONIO, PLLC | SAN ANTONIO | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 124 | 128 | $139,299 | $1,088 | premium | 4.3% | (210) 271-3204 |
| 49 | MULTICARE HEALTH SYSTEM | GIG HARBOR | WA | NURSE PRACTITIONER | 2289 | 127 | $136,694 | $1,076 | premium | 12.4% | — |
| 50 | UNIVERSITY OF LOUISVILLE PHYSICIANS INC | LOUISVILLE | KY | NURSE PRACTITIONER | 1442 | 127 | $121,666 | $958 | premium | 23.4% | (502) 629-2398 |
| 51 | THE HEART GROUP OF LANCASTER GENERAL HEALTH | LANCASTER | PA | NURSE PRACTITIONER | 61 | 125 | $112,842 | $903 | premium | 3.4% | (717) 544-8300 |
| 52 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 125 | $202,875 | $1,623 | premium | 4.2% | (214) 633-5555 |
| 53 | CARDIOLOGY AND VASCULAR CARE CENTER LLC | PORT CHARLOTTE | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 4 | 123 | $78,720 | $640 | premium | 2.4% | (941) 258-3635 |
| 54 | CENTENNIAL HEART LLC | NASHVILLE | TN | NURSE PRACTITIONER | 121 | 121 | $146,448 | $1,210 | premium | 10.2% | (615) 515-1900 |
| 55 | ORLANDO HEALTH MEDICAL GROUP INC | ORLANDO | FL | PHYSICIAN ASSISTANT | 2145 | 121 | $136,563 | $1,129 | premium | 2.3% | (407) 896-1100 |
| 56 | LUTHERAN MEDICAL GROUP LLC | FORT WAYNE | IN | NURSE PRACTITIONER | 241 | 120 | $101,160 | $843 | premium | 14.9% | (260) 434-6339 |
| 57 | KETTERING INDEPENDENT MEDICAL GROUP INC | KETTERING | OH | NURSE PRACTITIONER | 691 | 120 | $130,980 | $1,092 | premium | 7.6% | (937) 395-8646 |
| 58 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NJ | NURSE PRACTITIONER | 990 | 118 | $273,524 | $2,318 | premium | 5.3% | — |
| 59 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 118 | $132,160 | $1,120 | premium | 3.0% | (714) 871-3006 |
| 60 | MERCY HEALTH NORTHWEST ARKANSAS COMMUNITIES | ROGERS | AR | NURSE PRACTITIONER | 316 | 115 | $105,915 | $921 | premium | 19.2% | (479) 338-8000 |
| 61 | ST. PETER'S HEALTH PARTNERS MEDICAL ASSOCIATES, P.C. | ALBANY | NY | PHYSICIAN ASSISTANT | 480 | 114 | $90,464 | $794 | premium | 3.0% | (518) 525-1852 |
| 62 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 114 | $81,966 | $719 | premium | 21.0% | (502) 928-1050 |
| 63 | OHIOHEALTH CORPORATION | COLUMBUS | OH | PHYSICIAN ASSISTANT | 2282 | 111 | $91,020 | $820 | premium | 7.0% | — |
| 64 | PROVIDENCE HEALTH AND SERVICES WASHINGTON | OLYMPIA | WA | FAMILY PRACTICE | 477 | 110 | $122,870 | $1,117 | premium | 10.8% | (360) 493-4083 |
| 65 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 108 | $254,760 | $2,359 | premium | 6.3% | (630) 469-9200 |
| 66 | MONTEFIORE MEDICAL CENTER | BRONX | NY | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 2796 | 108 | $516,780 | $4,785 | premium | 2.8% | (866) 633-8255 |
| 67 | AHS OKLAHOMA HEART LLC | TULSA | OK | PHYSICIAN ASSISTANT | 136 | 106 | $222,600 | $2,100 | premium | 11.4% | (918) 592-0999 |
| 68 | BON SECOURS CHARITY HEALTH SYSTEM MEDICAL GROUP, P.C. | SUFFERN | NY | NURSE PRACTITIONER | 155 | 105 | $494,082 | $4,706 | premium | 2.7% | 845353560025027 |
| 69 | RMH MEDICAL GROUP LLC | ROCKINGHAM | VA | PHYSICIAN ASSISTANT | 263 | 104 | $72,137 | $694 | premium | 6.7% | (540) 689-1110 |
| 70 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 104 | $139,360 | $1,340 | premium | 2.8% | (215) 662-2777 |
| 71 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 104 | $103,798 | $998 | premium | 14.2% | — |
| 72 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 104 | $143,936 | $1,384 | premium | 13.1% | (803) 749-5101 |
| 73 | SPECTRUM HEALTH PRIMARY CARE PARTNERS | GRAND RAPIDS | MI | PHYSICIAN ASSISTANT | 2255 | 104 | $113,002 | $1,087 | premium | 9.3% | (616) 885-5000 |
| 74 | TRI-CITY CARDIOLOGY CONSULTANTS PC | MESA | AZ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 41 | 104 | $79,248 | $762 | premium | 9.7% | (480) 835-6100 |
| 75 | KINGS PHYSICIAN SERVICES PC | BROOKLYN | NY | PHYSICIAN ASSISTANT | 664 | 104 | $168,154 | $1,617 | premium | 2.7% | — |
| 76 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 103 | $154,867 | $1,504 | premium | 2.6% | (916) 681-8852 |
| 77 | SOUTHWEST MEDICAL ASSOCIATES, LLC | ALBUQUERQUE | NM | PHYSICIAN ASSISTANT | 328 | 103 | $89,010 | $864 | premium | 32.7% | (505) 727-7090 |
| 78 | CHARLES H. CROFT M.D.,P.A. | MELBOURNE | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 101 | $101,707 | $1,007 | premium | 1.9% | (321) 434-7000 |
| 79 | UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL | CHARLESTON | SC | PHYSICIAN ASSISTANT | 1692 | 101 | $576,420 | $5,707 | premium | 12.8% | (843) 792-1414 |
| 80 | BAPTIST HEALTH | LITTLE ROCK | AR | NURSE PRACTITIONER | 106 | 101 | $276,437 | $2,737 | premium | 16.8% | (501) 227-7596 |
| 81 | MOUNT SINAI SCHOOL OF MEDICINE | OCEANSIDE | NY | PHYSICIAN ASSISTANT | 151 | 100 | $139,500 | $1,395 | premium | 2.6% | — |
| 82 | REGIONAL HEALTH SERVICES INC | ERIE | PA | PHYSICIAN ASSISTANT | 588 | 98 | $169,736 | $1,732 | premium | 2.6% | — |
| 83 | HOLY CROSS HOSPITAL INC | FT LAUDERDALE | FL | PHYSICIAN ASSISTANT | 303 | 96 | $136,870 | $1,426 | premium | 1.8% | (954) 772-2136 |
| 84 | CARILION MEDICAL CENTER | ROANOKE | VA | PHYSICIAN ASSISTANT | 964 | 95 | $114,855 | $1,209 | premium | 6.1% | (540) 981-7925 |
| 85 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 94 | $253,800 | $2,700 | premium | 2.4% | (212) 305-8559 |
| 86 | STONY BROOK INTERNISTS UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | HOSPITALIST | 414 | 93 | $142,755 | $1,535 | premium | 2.4% | (631) 444-1560 |
| 87 | PROMEDICA NORTHWEST OHIO CARDIOLOGY CONSULTANTS LLC | TOLEDO | OH | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 79 | 93 | $119,505 | $1,285 | premium | 5.9% | (419) 842-3000 |
| 88 | THE HEALTH CARE AUTHORITY OF THE CITY OF ANNISTON | ANNISTON | AL | NURSE PRACTITIONER | 38 | 93 | $185,730 | $1,997 | premium | 10.7% | (256) 235-8922 |
| 89 | THE EMORY CLINIC INC | ATLANTA | GA | NURSE PRACTITIONER | 3484 | 92 | $332,580 | $3,615 | premium | 8.1% | (404) 778-7525 |
| 90 | SANFORD BISMARCK | BISMARCK | ND | NURSE PRACTITIONER | 563 | 91 | $88,361 | $971 | premium | 42.7% | (701) 323-8300 |
| 91 | COMMUNITY MEDICAL ASSOCIATES INC | LOUISVILLE | KY | NURSE PRACTITIONER | 1377 | 91 | $112,021 | $1,231 | premium | 16.8% | (502) 937-2209 |
| 92 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 90 | $122,760 | $1,364 | premium | 15.0% | (479) 571-4338 |
| 93 | BRYN MAWR MEDICAL SPECIALISTS ASSOCIATION | BRYN MAWR | PA | NURSE PRACTITIONER | 134 | 90 | $78,750 | $875 | premium | 2.4% | (610) 527-3800 |
| 94 | SOUTHCOAST PHYSICIANS GROUP INC | FALL RIVER | MA | NURSE PRACTITIONER | 868 | 90 | $109,374 | $1,215 | premium | 12.3% | (508) 973-5919 |
| 95 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 89 | $119,535 | $1,343 | premium | 2.2% | (858) 455-9100 |
| 96 | VHS OUTPATIENT CLINICS INC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 180 | 89 | $102,617 | $1,153 | premium | 8.3% | (602) 274-6506 |
| 97 | FLORIDA HOSPITAL PHYSICIAN GROUP INC | TAMPA | FL | DIAGNOSTIC RADIOLOGY | 891 | 88 | $103,721 | $1,179 | premium | 1.7% | (813) 615-7075 |
| 98 | PRESBYTERIAN HEALTHCARE SERVICES | ALBUQUERQUE | NM | PHYSICIAN ASSISTANT | 1369 | 87 | $74,211 | $853 | premium | 27.6% | (505) 841-1234 |
| 99 | VALLEY PHYSICIAN SERVICES PC | HOBOKEN | NY | NURSE PRACTITIONER | 606 | 87 | $118,059 | $1,357 | premium | 2.3% | (800) 825-5391 |
| 100 | UNIVERSITY PRIMARY CARE PRACTICES INC | CONNEAUT | OH | FAMILY PRACTICE | 1067 | 87 | $84,855 | $975 | premium | 5.5% | — |
Showing the top 100 of 564 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 →