70496 — Ct scan of blood vessels of head with contrast
269,921 observed fee-for-service (49%) · ~277,887 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 | 70496 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 3,865 | $1,230,129 | $318 | premium | 15.9% | (616) 363-7272 |
| 2 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 3,714 | $2,329,892 | $627 | premium | 6.7% | (281) 206-9020 |
| 3 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 3,607 | $1,239,403 | $344 | premium | 6.5% | (817) 321-0470 |
| 4 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 3,324 | $859,377 | $259 | premium | 26.2% | — |
| 5 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 2,801 | $980,396 | $350 | premium | 60.8% | (401) 626-3900 |
| 6 | CHARLOTTE RADIOLOGY PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 218 | 2,558 | $1,276,219 | $499 | premium | 9.7% | (704) 362-1945 |
| 7 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 2,524 | $1,164,265 | $461 | premium | 3.6% | (916) 983-7476 |
| 8 | STONY BROOK RADIOLOGY, UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | DIAGNOSTIC RADIOLOGY | 59 | 2,423 | $1,205,320 | $497 | premium | 6.3% | (631) 638-2121 |
| 9 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 2,361 | $1,782,574 | $755 | premium | 5.7% | (904) 399-5550 |
| 10 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 2,351 | $1,082,546 | $460 | premium | 7.4% | — |
| 11 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 2,114 | $1,226,675 | $580 | premium | 3.0% | (916) 681-8852 |
| 12 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 1,950 | $1,112,225 | $570 | premium | 2.8% | (858) 455-9100 |
| 13 | PROGRESSIVE PHYSICIAN ASSOC INC | PHILLIPSBURG | PA | DIAGNOSTIC RADIOLOGY | 160 | 1,892 | $628,144 | $332 | premium | 5.9% | (908) 859-6700 |
| 14 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 1,770 | $474,077 | $268 | premium | 24.9% | (801) 261-8346 |
| 15 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 1,730 | $456,720 | $264 | premium | 6.5% | (252) 752-5000 |
| 16 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,720 | $1,579,602 | $918 | premium | 4.5% | (212) 263-9700 |
| 17 | MECKLENBURG RADIOLOGY ASSOCIATES PA | CHARLOTTE | NC | DIAGNOSTIC RADIOLOGY | 94 | 1,652 | $472,748 | $286 | premium | 6.2% | (704) 332-1291 |
| 18 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 1,634 | $419,030 | $256 | premium | 7.9% | (206) 364-0500 |
| 19 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 1,625 | $592,517 | $365 | premium | 9.1% | (314) 941-5600 |
| 20 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 1,624 | $1,850,197 | $1,139 | premium | 4.7% | (507) 284-2511 |
| 21 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 1,607 | $1,804,661 | $1,123 | premium | 6.9% | (614) 228-7231 |
| 22 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 1,593 | $1,084,428 | $681 | premium | 14.7% | (203) 688-4242 |
| 23 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 1,582 | $348,040 | $220 | premium | 7.6% | (804) 288-8327 |
| 24 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 1,570 | $618,580 | $394 | premium | 6.0% | (508) 334-1000 |
| 25 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 1,525 | $594,996 | $390 | premium | 10.4% | (888) 972-9700 |
| 26 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 1,502 | $1,368,416 | $911 | premium | 10.4% | (800) 603-0558 |
| 27 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 1,482 | $2,485,913 | $1,677 | premium | 3.6% | (904) 953-2000 |
| 28 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 1,478 | $376,748 | $255 | premium | 6.3% | (517) 279-5400 |
| 29 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 1,466 | $286,464 | $195 | premium | 4.6% | — |
| 30 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | MA | DIAGNOSTIC RADIOLOGY | 60 | 1,415 | $382,212 | $270 | premium | 5.4% | (413) 827-7400 |
| 31 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 1,396 | $810,380 | $581 | premium | 5.3% | (617) 724-0287 |
| 32 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 1,323 | $1,137,267 | $860 | premium | 1.9% | (650) 723-4000 |
| 33 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 1,273 | $417,423 | $328 | premium | 4.9% | (781) 395-4909 |
| 34 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 1,269 | $1,425,087 | $1,123 | premium | 2.3% | (855) 504-4544 |
| 35 | LAKELAND RADIOLOGISTS P A | FLOWOOD | MS | DIAGNOSTIC RADIOLOGY | 29 | 1,252 | $498,296 | $398 | premium | 18.1% | (601) 936-2390 |
| 36 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 1,205 | $674,800 | $560 | premium | 3.8% | (309) 655-2000 |
| 37 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 1,179 | $378,318 | $321 | premium | 15.1% | (859) 257-1412 |
| 38 | ASSOCIATION OF UNIVERSITY RADIOLOGISTS, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 35 | 1,152 | $360,848 | $313 | premium | 5.9% | (865) 305-9661 |
| 39 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 1,131 | $352,934 | $312 | premium | 4.9% | (614) 293-8315 |
| 40 | VISTA RADIOLOGY, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 68 | 1,128 | $436,389 | $387 | premium | 5.8% | (865) 546-9484 |
| 41 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 1,128 | $338,400 | $300 | premium | 19.5% | (402) 717-4760 |
| 42 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | MA | DIAGNOSTIC RADIOLOGY | 22 | 1,126 | $297,669 | $264 | premium | 4.3% | (508) 679-7136 |
| 43 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 1,117 | $293,771 | $263 | premium | 5.4% | (757) 594-3900 |
| 44 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 1,094 | $875,220 | $800 | premium | 1.5% | (800) 926-8273 |
| 45 | MEMPHIS RADIOLOGICAL PC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 51 | 1,084 | $507,312 | $468 | premium | 5.6% | (901) 561-6000 |
| 46 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 1,063 | $268,142 | $252 | premium | 12.3% | (918) 743-8838 |
| 47 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 1,054 | $281,418 | $267 | premium | 5.1% | (757) 466-6870 |
| 48 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 1,045 | $317,024 | $303 | premium | 3.3% | — |
| 49 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 1,002 | $422,616 | $422 | premium | 18.5% | (319) 678-8201 |
| 50 | NEURO IR OF EAST TEXAS | TYLER | TX | DIAGNOSTIC RADIOLOGY | 3 | 985 | $421,580 | $428 | premium | 1.8% | (903) 705-0072 |
| 51 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 982 | $371,996 | $379 | premium | 1.8% | (254) 724-2663 |
| 52 | NORTHSIDE RADIOLOGY ASSOCIATES LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 370 | 975 | $1,094,925 | $1,123 | premium | 4.8% | (404) 851-6577 |
| 53 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | OH | NURSE PRACTITIONER | 1504 | 948 | $230,364 | $243 | premium | 4.1% | (513) 584-1000 |
| 54 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 937 | $242,055 | $258 | premium | 4.5% | (804) 272-8806 |
| 55 | FPA HOSPITAL BASED | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 427 | 933 | $735,906 | $789 | premium | 2.4% | (212) 252-6004 |
| 56 | TRISTATE IMG (IMAGING MEDICAL GROUP) INC | CINCINNATI | OH | DIAGNOSTIC RADIOLOGY | 44 | 912 | $255,411 | $280 | premium | 3.9% | (513) 865-1331 |
| 57 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 902 | $430,906 | $478 | premium | 3.4% | (919) 684-8111 |
| 58 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 894 | $299,490 | $335 | premium | 6.7% | (812) 422-3254 |
| 59 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 890 | $306,203 | $344 | premium | 5.0% | (973) 971-6866 |
| 60 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 884 | $200,188 | $226 | premium | 11.2% | (479) 571-4338 |
| 61 | RADIOLOGY PHYSICIANS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 61 | 883 | $236,732 | $268 | premium | 3.8% | (937) 208-8000 |
| 62 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 881 | $257,783 | $293 | premium | 1.6% | (214) 633-5555 |
| 63 | RADIOLOGISTS OF UNIV OF ROCHESTER | ROCHESTER | NY | DIAGNOSTIC RADIOLOGY | 134 | 880 | $312,400 | $355 | premium | 2.3% | — |
| 64 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 872 | $197,072 | $226 | premium | 11.1% | (501) 686-8000 |
| 65 | RADIOLOGY ASSOCIATES LLC | BATON ROUGE | LA | DIAGNOSTIC RADIOLOGY | 79 | 860 | $279,286 | $325 | premium | 10.4% | (225) 757-0552 |
| 66 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | ME | DIAGNOSTIC RADIOLOGY | 281 | 852 | $228,123 | $268 | premium | 32.7% | (207) 828-2160 |
| 67 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 840 | $225,120 | $268 | premium | 15.5% | (319) 364-0121 |
| 68 | UT PHYSICIANS | HOUSTON | TX | NURSE PRACTITIONER | 1758 | 838 | $382,811 | $457 | premium | 1.5% | (713) 566-5000 |
| 69 | TOWER HEALTH MEDICAL GROUP | WEST READING | PA | INTERNAL MEDICINE | 590 | 835 | $221,954 | $266 | premium | 2.6% | (484) 628-5455 |
| 70 | COMMUNITY HOSPITAL OF THE MONTEREY PENINSULA | MONTEREY | CA | EMERGENCY MEDICINE | 141 | 829 | $834,472 | $1,007 | premium | 1.2% | (831) 624-5311 |
| 71 | QUANTUM IMAGING AND THERAPEUTIC ASSOCIATES INC | HARRISBURG | PA | DIAGNOSTIC RADIOLOGY | 90 | 819 | $246,432 | $301 | premium | 2.6% | (717) 932-5200 |
| 72 | DRS HARRIS BIRKHILL WANG SONGE AND ASSOC PC | DEARBORN | MI | DIAGNOSTIC RADIOLOGY | 62 | 810 | $281,270 | $347 | premium | 3.3% | (313) 593-7301 |
| 73 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 808 | $744,119 | $921 | premium | 5.6% | (520) 290-4842 |
| 74 | COLUMBUS RADIOLOGY CORP | COLUMBUS | NC | DIAGNOSTIC RADIOLOGY | 288 | 807 | $522,740 | $648 | premium | 3.0% | (614) 228-7231 |
| 75 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 802 | $231,201 | $288 | premium | 6.3% | (864) 587-3000 |
| 76 | BLUE RIDGE RADIOLOGY PC | LYNCHBURG | TN | DIAGNOSTIC RADIOLOGY | 76 | 789 | $191,248 | $242 | premium | 4.1% | (423) 968-1144 |
| 77 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 775 | $228,679 | $295 | premium | 1.1% | (760) 773-1251 |
| 78 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 756 | $516,319 | $683 | premium | 1.1% | — |
| 79 | COOPER UNIVERSITY RADIOLOGY PC | CAMDEN | NJ | DIAGNOSTIC RADIOLOGY | 68 | 749 | $252,413 | $337 | premium | 4.2% | — |
| 80 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 737 | $363,410 | $493 | premium | 3.0% | (248) 964-1187 |
| 81 | RADIOLOGY ASSOCIATES LLC | OKLAHOMA CITY | OK | DIAGNOSTIC RADIOLOGY | 19 | 730 | $222,650 | $305 | premium | 8.4% | (405) 949-3011 |
| 82 | UC REGENTS | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 99 | 730 | $274,820 | $376 | premium | 1.0% | (714) 456-7004 |
| 83 | NORTHWEST RADIOLOGY ASSOCIATES SC | ARLINGTON HEIGHTS | IL | DIAGNOSTIC RADIOLOGY | 21 | 721 | $204,764 | $284 | premium | 2.3% | (847) 618-1000 |
| 84 | THE EMORY CLINIC INC | ATLANTA | GA | NURSE PRACTITIONER | 3484 | 720 | $269,068 | $374 | premium | 3.5% | (404) 778-7525 |
| 85 | TEXAS RADIOLOGY ASSOCIATES LLP | PLANO | TX | DIAGNOSTIC RADIOLOGY | 153 | 717 | $881,843 | $1,230 | premium | 1.3% | (469) 814-2000 |
| 86 | RADIOLOGY INC | GOSHEN | IN | DIAGNOSTIC RADIOLOGY | 35 | 714 | $293,697 | $411 | premium | 5.3% | (574) 535-2693 |
| 87 | UNIVERSITY OF UTAH ADULT SERVICES | SALT LAKE CITY | UT | PHYSICIAN ASSISTANT | 1783 | 706 | $235,154 | $333 | premium | 9.9% | (801) 581-2121 |
| 88 | WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 1996 | 703 | $214,853 | $306 | premium | 16.6% | (304) 598-4865 |
| 89 | RADIOLOGY ASSOCIATES OF NORTHERN KENTUCKY PLLC | EDGEWOOD | KY | DIAGNOSTIC RADIOLOGY | 56 | 694 | $184,604 | $266 | premium | 8.9% | (859) 301-2160 |
| 90 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 688 | $294,588 | $428 | premium | 1.8% | — |
| 91 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | MI | DIAGNOSTIC RADIOLOGY | 32 | 682 | $180,048 | $264 | premium | 2.8% | (231) 935-5000 |
| 92 | RADIOLOGY OF MSMC, LLC | MIAMI | FL | DIAGNOSTIC RADIOLOGY | 23 | 679 | $458,873 | $676 | premium | 1.6% | (305) 674-3905 |
| 93 | QUANTUM RADIOLOGY PC | MARIETTA | GA | DIAGNOSTIC RADIOLOGY | 104 | 678 | $286,116 | $422 | premium | 3.3% | (770) 732-4000 |
| 94 | CALIFORNIA MANAGED IMAGING MEDICAL GROUP INC | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 64 | 672 | $460,554 | $685 | premium | 0.9% | (800) 841-4236 |
| 95 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 672 | $178,080 | $265 | premium | 2.9% | — |
| 96 | ALABAMA COASTAL RADIOLOGY PC | MOBILE | AL | DIAGNOSTIC RADIOLOGY | 22 | 658 | $118,440 | $180 | premium | 6.7% | (251) 460-0326 |
| 97 | SOUTHERN NEW HAMPSHIRE RADIOLOGY CONSULTANTS PC | BEDFORD | NH | DIAGNOSTIC RADIOLOGY | 42 | 652 | $168,615 | $259 | premium | 12.2% | (603) 627-1661 |
| 98 | LAHEY CLINIC INC | BURLINGTON | MA | NURSE PRACTITIONER | 1400 | 652 | $254,220 | $390 | premium | 2.5% | — |
| 99 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 644 | $306,544 | $476 | premium | 1.6% | (352) 265-8990 |
| 100 | THE CURATORS OF THE UNIVERSITY OF MISSOURI | COLUMBIA | MO | PHYSICIAN ASSISTANT | 1116 | 640 | $216,505 | $338 | premium | 3.6% | (573) 882-2667 |
Showing the top 100 of 777 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 →