70491 — Ct scan of soft tissue of neck with contrast
96,565 observed fee-for-service (50%) · ~97,747 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; 3 states without payer-mix data excluded. 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 | 70491 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 5,824 | $2,796,773 | $480 | premium | 25.8% | (713) 592-5433 |
| 2 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 2,199 | $556,515 | $253 | premium | 14.3% | (813) 745-4673 |
| 3 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 1,160 | $612,616 | $528 | premium | 11.6% | (617) 724-0287 |
| 4 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 1,153 | $1,702,576 | $1,477 | premium | 16.3% | (507) 284-2511 |
| 5 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 1,097 | $311,165 | $284 | premium | 11.0% | (617) 732-5500 |
| 6 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,051 | $1,132,688 | $1,078 | premium | 8.4% | (212) 263-9700 |
| 7 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 1,033 | $842,618 | $816 | premium | 19.7% | (800) 603-0558 |
| 8 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 1,024 | $429,067 | $419 | premium | 10.8% | — |
| 9 | AMERICAN RADIOLOGY CONSULTANTS PLLC | DALLAS | TX | DIAGNOSTIC RADIOLOGY | 121 | 999 | $245,754 | $246 | premium | 4.4% | (214) 820-3216 |
| 10 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 980 | $282,356 | $288 | premium | 6.0% | (626) 256-4673 |
| 11 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 912 | $254,589 | $279 | premium | 15.2% | (616) 363-7272 |
| 12 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 894 | $249,691 | $279 | premium | 8.9% | (781) 395-4909 |
| 13 | MASSACHUSETTS EYE AND EAR ASSOCIATES, INC | BOSTON | MA | OPHTHALMOLOGY | 406 | 884 | $253,304 | $287 | premium | 8.8% | (617) 523-7900 |
| 14 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 869 | $327,613 | $377 | premium | 11.0% | (704) 362-1945 |
| 15 | UCLA RADIOLOGY MEDICAL GROUP | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 191 | 858 | $345,728 | $403 | premium | 5.3% | (310) 301-6800 |
| 16 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 855 | $256,008 | $299 | premium | 3.8% | (817) 321-0470 |
| 17 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 836 | $550,088 | $658 | premium | 3.7% | — |
| 18 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 827 | $195,605 | $237 | premium | 3.7% | (214) 633-5555 |
| 19 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 825 | $202,125 | $245 | premium | 12.2% | (614) 293-8315 |
| 20 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 821 | $264,510 | $322 | premium | 13.6% | (734) 763-5459 |
| 21 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 801 | $130,549 | $163 | premium | 28.9% | (913) 588-1227 |
| 22 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 761 | $747,718 | $983 | premium | 4.7% | (916) 681-8852 |
| 23 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 730 | $627,468 | $860 | premium | 17.6% | — |
| 24 | HIGHLANDS ONCOLOGY GROUP PA | FAYETTEVILLE | AR | NURSE PRACTITIONER | 79 | 718 | $308,250 | $429 | premium | 17.3% | (479) 361-2585 |
| 25 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 710 | $144,259 | $203 | premium | 15.5% | (206) 364-0500 |
| 26 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 705 | $1,312,792 | $1,862 | premium | 4.6% | (904) 953-2000 |
| 27 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 696 | $306,259 | $440 | premium | 4.3% | (800) 926-8273 |
| 28 | MEDICAL ASSOCIATES OF NORTHWEST ARKANSAS, PA | FAYETTEVILLE | AR | FAMILY PRACTICE | 106 | 643 | $155,853 | $242 | premium | 15.5% | (479) 521-0200 |
| 29 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 624 | $261,745 | $419 | premium | 25.4% | (319) 678-8201 |
| 30 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 611 | $428,956 | $702 | premium | 11.8% | (888) 972-9700 |
| 31 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 581 | $481,654 | $829 | premium | 3.6% | (650) 723-4000 |
| 32 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 579 | $133,977 | $231 | premium | 6.1% | — |
| 33 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 567 | $127,056 | $224 | premium | 7.2% | (984) 215-5556 |
| 34 | FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | FORT MYERS | FL | HEMATOLOGY/ONCOLOGY | 437 | 561 | $506,741 | $903 | premium | 3.6% | (239) 561-9622 |
| 35 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 560 | $124,320 | $222 | premium | 5.9% | (312) 563-2875 |
| 36 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 538 | $285,371 | $530 | premium | 3.3% | (916) 983-7476 |
| 37 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 534 | $262,665 | $492 | premium | 2.4% | (281) 206-9020 |
| 38 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 529 | $111,619 | $211 | premium | 7.7% | (757) 466-6870 |
| 39 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 521 | $157,863 | $303 | premium | 2.3% | (254) 724-2663 |
| 40 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 511 | $155,212 | $304 | premium | 22.2% | (203) 688-4242 |
| 41 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 483 | $181,380 | $376 | premium | 3.1% | (352) 265-8990 |
| 42 | UNIVERSITY OF UTAH ADULT SERVICES | SALT LAKE CITY | UT | PHYSICIAN ASSISTANT | 1783 | 482 | $100,266 | $208 | premium | 27.6% | (801) 581-2121 |
| 43 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 475 | $245,438 | $517 | premium | 3.8% | (631) 225-7200 |
| 44 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 473 | $106,898 | $226 | premium | 11.4% | (501) 686-8000 |
| 45 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 465 | $176,455 | $379 | premium | 5.9% | (919) 684-8111 |
| 46 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 449 | $80,820 | $180 | premium | 6.6% | (804) 288-8327 |
| 47 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 445 | $124,851 | $281 | premium | 6.9% | (314) 941-5600 |
| 48 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 439 | $89,786 | $205 | premium | 11.3% | — |
| 49 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 426 | $118,498 | $278 | premium | 5.4% | (252) 752-5000 |
| 50 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 413 | $108,619 | $263 | premium | 2.7% | (305) 689-5437 |
| 51 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | OH | NURSE PRACTITIONER | 1504 | 407 | $78,551 | $193 | premium | 6.0% | (513) 584-1000 |
| 52 | MECKLENBURG RADIOLOGY ASSOCIATES PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 94 | 406 | $94,192 | $232 | premium | 5.2% | (704) 332-1291 |
| 53 | ROPER RADIOLOGISTS PA | CHARLESTON | SC | DIAGNOSTIC RADIOLOGY | 40 | 401 | $256,239 | $639 | premium | 10.3% | (843) 724-2161 |
| 54 | NORTHSIDE RADIOLOGY ASSOCIATES LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 370 | 389 | $335,318 | $862 | premium | 7.6% | (404) 851-6577 |
| 55 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 388 | $153,756 | $396 | premium | 6.5% | (248) 964-1187 |
| 56 | MSKCC RADIOLOGY GROUP | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 199 | 383 | $137,880 | $360 | premium | 3.0% | (646) 888-5300 |
| 57 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 377 | $91,234 | $242 | premium | 11.0% | (812) 422-3254 |
| 58 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 354 | $98,300 | $278 | premium | 16.1% | (405) 271-4311 |
| 59 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 353 | $108,906 | $309 | premium | 13.4% | (205) 934-3460 |
| 60 | THE EMORY CLINIC INC | ATLANTA | GA | NURSE PRACTITIONER | 3484 | 350 | $99,754 | $285 | premium | 6.8% | (404) 778-7525 |
| 61 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 349 | $224,306 | $643 | premium | 2.3% | (904) 399-5550 |
| 62 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 340 | $108,141 | $318 | premium | 3.4% | (508) 334-1000 |
| 63 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 339 | $63,054 | $186 | premium | 5.0% | — |
| 64 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 337 | $120,417 | $357 | premium | 65.1% | (401) 626-3900 |
| 65 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 330 | $320,810 | $972 | premium | 6.3% | (520) 290-4842 |
| 66 | MCV ASSOCIATED PHYSICIANS | RICHMOND | VA | NURSE PRACTITIONER | 1791 | 327 | $94,830 | $290 | premium | 4.8% | (804) 828-9000 |
| 67 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 321 | $99,498 | $310 | premium | 14.6% | (859) 257-1412 |
| 68 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 318 | $72,822 | $229 | premium | 7.6% | (973) 971-6866 |
| 69 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 317 | $81,755 | $258 | premium | 4.6% | (804) 272-8806 |
| 70 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 310 | $61,922 | $200 | premium | 14.1% | (918) 743-8838 |
| 71 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | OK | NURSE PRACTITIONER | 1815 | 304 | $49,535 | $163 | premium | 13.8% | (913) 588-1227 |
| 72 | HAMPTON ROADS RADIOLOGY ASSOCIATES PC | VIRGINIA BEACH | VA | DIAGNOSTIC RADIOLOGY | 37 | 303 | $73,629 | $243 | premium | 4.4% | (757) 916-9630 |
| 73 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 301 | $254,494 | $845 | premium | 2.0% | (239) 936-2316 |
| 74 | TEMPLE FACULTY PRACTICE PLAN INC | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 1330 | 301 | $69,230 | $230 | premium | 3.5% | — |
| 75 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 301 | $168,308 | $559 | premium | 2.0% | (352) 787-5858 |
| 76 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 299 | $152,490 | $510 | premium | 4.6% | (314) 747-3000 |
| 77 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 297 | $267,315 | $900 | premium | 3.1% | (217) 544-6464 |
| 78 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 294 | $230,500 | $784 | premium | 5.7% | (888) 601-0943 |
| 79 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 283 | $62,543 | $221 | premium | 14.4% | (402) 717-4760 |
| 80 | UNIVERSITY OF CHICAGO | CHICAGO | IL | NURSE PRACTITIONER | 1662 | 283 | $169,076 | $597 | premium | 3.0% | (888) 824-0200 |
| 81 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 283 | $95,382 | $337 | premium | 3.0% | (708) 216-8372 |
| 82 | VISTA RADIOLOGY, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 68 | 282 | $87,720 | $311 | premium | 4.0% | (865) 546-9484 |
| 83 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | ME | DIAGNOSTIC RADIOLOGY | 281 | 281 | $61,443 | $219 | premium | 36.9% | (207) 828-2160 |
| 84 | UC REGENTS | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 99 | 281 | $84,945 | $302 | premium | 1.7% | (714) 456-7004 |
| 85 | PROGRESSIVE PHYSICIAN ASSOC INC | PHILLIPSBURG | PA | DIAGNOSTIC RADIOLOGY | 160 | 280 | $73,360 | $262 | premium | 3.2% | (908) 859-6700 |
| 86 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 275 | $69,025 | $251 | premium | 4.0% | (757) 594-3900 |
| 87 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 265 | $228,430 | $862 | premium | 3.9% | (614) 228-7231 |
| 88 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 263 | $188,433 | $716 | premium | 1.7% | (954) 659-5000 |
| 89 | RADIOLOGIC CENTER INC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 20 | 263 | $89,683 | $341 | premium | 13.4% | (402) 390-0606 |
| 90 | ARIZONA DIAGNOSTIC RADIOLOGY GROUP LLC | GILBERT | AZ | DIAGNOSTIC RADIOLOGY | 60 | 263 | $73,586 | $280 | premium | 5.0% | (480) 354-9200 |
| 91 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 257 | $215,529 | $839 | premium | 1.6% | (858) 455-9100 |
| 92 | NORTHWEST RADIOLOGY ASSOCIATES SC | ARLINGTON HEIGHTS | IL | DIAGNOSTIC RADIOLOGY | 21 | 256 | $64,768 | $253 | premium | 2.7% | (847) 618-1000 |
| 93 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 242 | $52,656 | $218 | premium | 2.8% | — |
| 94 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 240 | $73,200 | $305 | premium | 3.5% | (614) 566-5600 |
| 95 | STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER | JACKSON | MS | NURSE PRACTITIONER | 951 | 227 | $64,241 | $283 | premium | 11.6% | (601) 815-4775 |
| 96 | ASSOCIATION OF UNIVERSITY RADIOLOGISTS, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 35 | 227 | $56,796 | $250 | premium | 3.3% | (865) 305-9661 |
| 97 | IRONWOOD PHYSICIANS PC | MESA | AZ | HEMATOLOGY/ONCOLOGY | 114 | 222 | $74,814 | $337 | premium | 4.2% | (480) 981-1326 |
| 98 | RADIOLOGY ASSOCIATES OF ABILENE PA | ABILENE | TX | DIAGNOSTIC RADIOLOGY | 25 | 220 | $53,881 | $245 | premium | 1.0% | (325) 670-2000 |
| 99 | LAKELAND RADIOLOGISTS P A | FLOWOOD | MS | DIAGNOSTIC RADIOLOGY | 29 | 218 | $67,704 | $311 | premium | 11.2% | (601) 936-2390 |
| 100 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | IL | DIAGNOSTIC RADIOLOGY | 244 | 214 | $118,346 | $553 | premium | 2.3% | (212) 772-3111 |
Showing the top 100 of 646 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 →