70480 — Ct scan of cranial cavity without contrast
9,517 observed fee-for-service (50%) · ~9,347 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 | 70480 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ENT AND ALLERGY ASSOCIATES OF FLORIDA, LLC | BOCA RATON | FL | OTOLARYNGOLOGY | 231 | 554 | $277,000 | $500 | premium | 19.8% | (561) 391-3333 |
| 2 | MASSACHUSETTS EYE AND EAR ASSOCIATES, INC | BOSTON | MA | OPHTHALMOLOGY | 406 | 282 | $74,949 | $266 | premium | 24.4% | (617) 523-7900 |
| 3 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 250 | $250,698 | $1,003 | premium | 34.4% | (480) 753-6161 |
| 4 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 230 | $230,992 | $1,004 | premium | 13.2% | (212) 263-9700 |
| 5 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 212 | $95,552 | $451 | premium | 12.2% | (631) 225-7200 |
| 6 | CORTLAND ENT, PC | CORTLAND | NY | ANESTHESIOLOGY | 5 | 207 | $37,100 | $179 | premium | 11.9% | (607) 753-6560 |
| 7 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 205 | $125,268 | $611 | premium | 22.6% | (888) 972-9700 |
| 8 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 145 | $55,898 | $386 | premium | 73.6% | (319) 678-8201 |
| 9 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 139 | $107,000 | $770 | premium | 15.3% | (888) 601-0943 |
| 10 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 136 | $56,566 | $416 | premium | 4.8% | (800) 926-8273 |
| 11 | SACRAMENTO EAR NOSE AND THROAT SURGICAL AND MEDICAL GROUP INC | SACRAMENTO | CA | OTOLARYNGOLOGY | 34 | 125 | $94,250 | $754 | premium | 4.4% | (916) 736-3399 |
| 12 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 124 | $98,696 | $796 | premium | 4.4% | (239) 936-2316 |
| 13 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 121 | $41,189 | $340 | premium | 29.6% | (984) 215-5556 |
| 14 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 116 | $69,710 | $601 | premium | 13.9% | — |
| 15 | IHS RADIOLOGY MEDICAL GROUP INC | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 68 | 110 | $101,530 | $923 | premium | 3.8% | (619) 295-9729 |
| 16 | TRACY BYERLY II MD PA | FREDERICKSBURG | TX | PHYSICIAN ASSISTANT | 3 | 105 | $70,560 | $672 | premium | 5.6% | — |
| 17 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 105 | $27,330 | $260 | premium | 9.1% | (781) 395-4909 |
| 18 | RADIOLOGY ASSOCIATES LLC | BATON ROUGE | LA | DIAGNOSTIC RADIOLOGY | 79 | 104 | $26,000 | $250 | premium | 31.5% | (225) 757-0552 |
| 19 | MEDICAL SCANNING CONSULTANTS PA | ST LOUIS PARK | MN | DIAGNOSTIC RADIOLOGY | 81 | 95 | $82,159 | $865 | premium | 19.5% | (952) 541-1840 |
| 20 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 93 | $44,919 | $483 | premium | 3.3% | (352) 787-5858 |
| 21 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 88 | $142,693 | $1,622 | premium | 3.1% | (904) 953-2000 |
| 22 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 87 | $18,183 | $209 | premium | 10.5% | — |
| 23 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 83 | $18,758 | $226 | premium | 35.0% | (501) 686-8000 |
| 24 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 82 | $100,929 | $1,231 | premium | 2.9% | (916) 681-8852 |
| 25 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 80 | $13,520 | $169 | premium | 18.5% | — |
| 26 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 78 | $13,260 | $170 | premium | 12.7% | (804) 288-8327 |
| 27 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 78 | $46,956 | $602 | premium | 29.7% | (702) 732-6000 |
| 28 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 76 | $14,820 | $195 | premium | 12.4% | (757) 466-6870 |
| 29 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 74 | $33,618 | $454 | premium | 4.0% | (281) 206-9020 |
| 30 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 72 | $13,680 | $190 | premium | 20.6% | — |
| 31 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 68 | $24,544 | $361 | premium | 22.6% | (248) 964-1187 |
| 32 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 67 | $48,204 | $719 | premium | 9.2% | (800) 603-0558 |
| 33 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 67 | $18,157 | $271 | premium | 22.3% | (616) 363-7272 |
| 34 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 67 | $20,100 | $300 | premium | 5.8% | (508) 334-1000 |
| 35 | PROLIANCE SURGEONS INC P S | ISSAQUAH | WA | PHYSICIAN ASSISTANT | 395 | 65 | $46,479 | $715 | premium | 23.3% | (425) 313-5422 |
| 36 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 64 | $47,950 | $749 | premium | 2.2% | — |
| 37 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 61 | $12,688 | $208 | premium | 45.2% | (402) 717-4760 |
| 38 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 60 | $76,257 | $1,271 | premium | 8.3% | (520) 290-4842 |
| 39 | GEOFFREY TRENKLE DO A PROFESSIONAL MEDICAL CORPORATION | LOS ANGELES | CA | OTOLARYNGOLOGY | 18 | 60 | $24,000 | $400 | premium | 2.1% | (323) 268-6731 |
| 40 | ARKANSAS OTOLARYNGOLOGY CENTER PA | LITTLE ROCK | AR | OTOLARYNGOLOGY | 27 | 59 | $16,107 | $273 | premium | 24.9% | (501) 221-5050 |
| 41 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 59 | $20,660 | $350 | premium | 2.1% | (352) 265-8990 |
| 42 | EAR INSTITUTE OF TEXAS P A | SAN ANTONIO | TX | OTOLARYNGOLOGY | 11 | 58 | $26,904 | $464 | premium | 3.1% | (210) 363-6936 |
| 43 | MEMPHIS RADIOLOGICAL PC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 51 | 54 | $15,120 | $280 | premium | 8.0% | (901) 561-6000 |
| 44 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 52 | $17,026 | $327 | premium | 1.9% | (941) 255-3535 |
| 45 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 52 | $14,612 | $281 | premium | 2.8% | (254) 724-2663 |
| 46 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 52 | $42,900 | $825 | premium | 6.2% | (630) 469-9200 |
| 47 | REGIONAL MEDICAL IMAGING PC | FLINT | MI | DIAGNOSTIC RADIOLOGY | 22 | 52 | $13,474 | $259 | premium | 17.3% | (810) 732-8870 |
| 48 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 52 | $13,925 | $268 | premium | 4.5% | (617) 724-0287 |
| 49 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 51 | $29,483 | $578 | premium | 2.9% | (914) 241-1050 |
| 50 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 51 | $34,005 | $667 | premium | 1.8% | (916) 983-7476 |
| 51 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 50 | $46,000 | $920 | premium | 82.0% | (401) 626-3900 |
| 52 | SHEA CLINIC | MEMPHIS | TN | OTOLARYNGOLOGY | 8 | 49 | $38,955 | $795 | premium | 7.3% | (901) 761-9720 |
| 53 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 48 | $11,352 | $236 | premium | 20.3% | (501) 202-2093 |
| 54 | NEW YORK UNIVERSITY | NEW YORK | CO | DIAGNOSTIC RADIOLOGY | 5704 | 47 | $47,101 | $1,002 | premium | 10.4% | (212) 263-9700 |
| 55 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 46 | $23,092 | $502 | premium | 1.6% | (760) 773-1251 |
| 56 | MEDICAL SCANNING CONSULTANTS PA | ST LOUIS PARK | IN | DIAGNOSTIC RADIOLOGY | 81 | 45 | $35,809 | $796 | premium | 26.8% | (952) 541-1840 |
| 57 | DIAGNOSTIC IMAGING CENTERS PA | KANSAS CITY | MO | DIAGNOSTIC RADIOLOGY | 28 | 45 | $38,858 | $864 | premium | 11.2% | (816) 444-9989 |
| 58 | JEFFERSON RADIOLOGY ASSOCIATES, INC. | MARRERO | LA | DIAGNOSTIC RADIOLOGY | 15 | 45 | $11,745 | $261 | premium | 13.6% | (504) 349-1461 |
| 59 | DELAWARE RADIOLOGY ASSOCIATES PA | NEWARK | PA | DIAGNOSTIC RADIOLOGY | 56 | 44 | $34,056 | $774 | premium | 7.2% | (302) 737-5990 |
| 60 | NEW YORK UNIVERSITY | NEW YORK | PA | DIAGNOSTIC RADIOLOGY | 5704 | 43 | $43,045 | $1,001 | premium | 7.0% | (212) 263-9700 |
| 61 | DIAGNOSTIC IMAGING CENTERS PA | KANSAS CITY | KS | DIAGNOSTIC RADIOLOGY | 28 | 41 | $35,404 | $864 | premium | 17.3% | (816) 444-9989 |
| 62 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 40 | $15,640 | $391 | premium | 4.8% | (309) 655-2000 |
| 63 | VISTA RADIOLOGY, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 68 | 40 | $11,080 | $277 | premium | 5.9% | (865) 546-9484 |
| 64 | ASCENSION MEDICAL GROUP VIA CHRISTI PA | WICHITA | KS | FAMILY PRACTICE | 186 | 40 | $20,320 | $508 | premium | 16.9% | (316) 689-9349 |
| 65 | VALLEY RADIOLOGY MEDICAL ASSOCIATES INC | SAN JOSE | NY | DIAGNOSTIC RADIOLOGY | 25 | 39 | $30,186 | $774 | premium | 2.2% | (408) 358-6881 |
| 66 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 38 | $58,900 | $1,550 | premium | 1.3% | (415) 600-1020 |
| 67 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS | CHICAGO | IL | NURSE PRACTITIONER | 1170 | 38 | $12,848 | $338 | premium | 4.6% | — |
| 68 | PRIVIA MEDICAL GROUP SOUTH CAROLINA, LLC | GREENVILLE | SC | OTOLARYNGOLOGY | 21 | 37 | $18,543 | $501 | premium | 10.6% | (864) 572-7001 |
| 69 | DRS. GIRGIS AND ASSOCIATES, S.C. | HINSDALE | IL | QUALIFIED AUDIOLOGIST | 11 | 37 | $9,930 | $268 | premium | 4.4% | (630) 323-6400 |
| 70 | SANFORD MEDICAL CENTER FARGO | FARGO | ND | NURSE PRACTITIONER | 1198 | 36 | $6,669 | $185 | premium | 62.1% | (701) 234-2000 |
| 71 | JASON ROOS DO A PROFESSIONAL MEDICAL CORPORATION | VISALIA | CA | NURSE PRACTITIONER | 7 | 36 | $10,008 | $278 | premium | 1.3% | (559) 409-4720 |
| 72 | NEW YORK UNIVERSITY | NEW YORK | WA | DIAGNOSTIC RADIOLOGY | 5704 | 36 | $36,916 | $1,025 | premium | 12.9% | (212) 263-9700 |
| 73 | CHARLOTTE EYE EAR NOSE AND THROAT ASSOCIATES PA | CHARLOTTE | NC | QUALIFIED AUDIOLOGIST | 158 | 36 | $22,500 | $625 | premium | 8.8% | (704) 295-3414 |
| 74 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 35 | $9,940 | $284 | premium | 8.1% | (614) 566-5600 |
| 75 | NORTH FLORIDA SURGEONS PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 331 | 35 | $26,250 | $750 | premium | 1.2% | (904) 396-1725 |
| 76 | ADVANCED RADIOLOGY P A | BALTIMORE | AZ | DIAGNOSTIC RADIOLOGY | 161 | 35 | $27,090 | $774 | premium | 4.8% | (888) 972-9700 |
| 77 | ALABAMA EAR PC | BIRMINGHAM | AL | OTOLARYNGOLOGY | 4 | 35 | $6,371 | $182 | premium | 11.0% | (205) 598-4799 |
| 78 | ADVANCED BERKSHIRE MEDICAL IMAGING PC | PITTSFIELD | MN | DIAGNOSTIC RADIOLOGY | 11 | 34 | $7,276 | $214 | premium | 7.0% | (413) 447-2451 |
| 79 | ADR LLC | CUMBERLAND | MD | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 4 | 33 | $16,427 | $498 | premium | 3.6% | (301) 777-3522 |
| 80 | SMI IMAGING LLC | PHOENIX | TX | DIAGNOSTIC RADIOLOGY | 364 | 33 | $19,300 | $585 | premium | 1.8% | (480) 753-6161 |
| 81 | IMAGING ASSOCIATES OF INDIANA, PC | CROWN POINT | NY | DIAGNOSTIC RADIOLOGY | 263 | 33 | $25,080 | $760 | premium | 1.9% | (219) 757-6320 |
| 82 | GLACIER EAR NOSE AND THROAT HEAD AND NECK SURGERY PC | KALISPELL | MT | OTOLARYNGOLOGY | 10 | 32 | $18,944 | $592 | premium | 54.2% | (406) 752-8330 |
| 83 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | AZ | DIAGNOSTIC RADIOLOGY | 244 | 32 | $7,608 | $238 | premium | 4.4% | (212) 772-3111 |
| 84 | PETERSON MEDICAL ASSOCIATES | KERRVILLE | TX | DIAGNOSTIC RADIOLOGY | 188 | 31 | $12,152 | $392 | premium | 1.7% | (830) 258-7090 |
| 85 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 244 | 30 | $18,284 | $609 | premium | 1.7% | (212) 772-3111 |
| 86 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 30 | $5,595 | $186 | premium | 23.8% | (918) 743-8838 |
| 87 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 29 | $27,631 | $953 | premium | 1.0% | (858) 455-9100 |
| 88 | AVERA ST LUKES | ABERDEEN | TX | NURSE PRACTITIONER | 169 | 29 | $9,454 | $326 | premium | 1.5% | (605) 622-5100 |
| 89 | TOLEDO CLINIC INCORPORATED | TOLEDO | OH | NURSE PRACTITIONER | 217 | 29 | $10,643 | $367 | premium | 6.7% | (419) 874-3246 |
| 90 | ALLEGANY IMAGING PC | CUMBERLAND | MD | DIAGNOSTIC RADIOLOGY | 10 | 29 | $7,279 | $251 | premium | 3.2% | (240) 964-1036 |
| 91 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 29 | $7,018 | $242 | premium | 1.0% | (305) 689-5437 |
| 92 | EAR, NOSE AND THROAT PHYSICIANS OF NORTH MISS., P.A | TUPELO | MS | QUALIFIED AUDIOLOGIST | 22 | 28 | $12,591 | $450 | premium | 30.1% | (662) 840-7034 |
| 93 | OTOLARYNGOLOGY ASSOCIATES OF TENNESSEE PC | NASHVILLE | TN | OTOLARYNGOLOGY | 23 | 28 | $12,824 | $458 | premium | 4.1% | (615) 340-4000 |
| 94 | UNMC PHYSICIANS | OMAHA | NE | PHYSICIAN ASSISTANT | 1514 | 28 | $5,499 | $196 | premium | 20.7% | (402) 559-4000 |
| 95 | MEDICAL ASSOCIATES OF BREVARD LLC | MELBOURNE | FL | NURSE PRACTITIONER | 82 | 28 | $4,369 | $156 | premium | 1.0% | (321) 622-8730 |
| 96 | ADVANCED BERKSHIRE MEDICAL IMAGING PC | PITTSFIELD | CA | DIAGNOSTIC RADIOLOGY | 11 | 27 | $5,778 | $214 | premium | 0.9% | (413) 447-2451 |
| 97 | HAMPTON ROADS RADIOLOGY ASSOCIATES PC | VIRGINIA BEACH | VA | DIAGNOSTIC RADIOLOGY | 37 | 27 | $6,129 | $227 | premium | 4.4% | (757) 916-9630 |
| 98 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | MD | NURSE PRACTITIONER | 2232 | 27 | $4,563 | $169 | premium | 3.0% | — |
| 99 | JAYESH V. PATEL DO PA | TITUSVILLE | FL | PHYSICIAN ASSISTANT | 2 | 26 | $13,000 | $500 | premium | 0.9% | — |
| 100 | ALABAMA COASTAL RADIOLOGY PC | MOBILE | AL | DIAGNOSTIC RADIOLOGY | 22 | 26 | $3,640 | $140 | premium | 8.2% | (251) 460-0326 |
Showing the top 100 of 205 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 →