73523 — X-ray of both hips, minimum of 5 views
21,643 observed fee-for-service (50%) · ~21,457 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 | 73523 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 574 | $135,964 | $237 | premium | 19.5% | (480) 753-6161 |
| 2 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 488 | $88,816 | $182 | premium | 8.3% | (352) 787-5858 |
| 3 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 471 | $179,013 | $380 | premium | 42.0% | (507) 284-2511 |
| 4 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 430 | $33,424 | $78 | premium | 13.7% | (508) 334-1000 |
| 5 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 401 | $34,010 | $85 | premium | 12.8% | (617) 724-0287 |
| 6 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 393 | $77,954 | $198 | premium | 13.3% | (800) 603-0558 |
| 7 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 363 | $170,170 | $469 | premium | 6.1% | (904) 953-2000 |
| 8 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 330 | $38,262 | $116 | premium | 8.1% | — |
| 9 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 293 | $19,874 | $68 | premium | 11.5% | (817) 321-0470 |
| 10 | DARTMOUTH-HITCHCOCK CLINIC | LEBANON | NH | PHYSICIAN ASSISTANT | 1441 | 256 | $57,689 | $225 | premium | 32.0% | (603) 650-5000 |
| 11 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 253 | $15,954 | $63 | premium | 8.1% | (617) 732-5500 |
| 12 | SARAH BUSH LINCOLN HEALTH CENTER | MATTOON | IL | NURSE PRACTITIONER | 405 | 223 | $63,481 | $285 | premium | 5.5% | — |
| 13 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 212 | $78,565 | $371 | premium | 5.2% | (847) 459-1160 |
| 14 | SYRACUSE ORTHOPEDIC SPECIALISTS, PLLC | SYRACUSE | NY | PHYSICIAN ASSISTANT | 115 | 211 | $34,182 | $162 | premium | 2.5% | (315) 448-5111 |
| 15 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 203 | $26,796 | $132 | premium | 12.6% | (248) 964-1187 |
| 16 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 198 | $9,702 | $49 | premium | 16.7% | (757) 594-3900 |
| 17 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 197 | $54,362 | $276 | premium | 6.7% | (520) 290-4842 |
| 18 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | ORTHOPEDIC SURGERY | 136 | 194 | $59,982 | $309 | premium | 4.3% | (310) 443-8999 |
| 19 | ILLINOIS BONE AND JOINT INSTITUTE, LLC | BANNOCKBURN | IL | ORTHOPEDIC SURGERY | 595 | 189 | $38,095 | $202 | premium | 4.7% | — |
| 20 | UNIVERSITY OF CHICAGO | CHICAGO | IL | NURSE PRACTITIONER | 1662 | 187 | $45,638 | $244 | premium | 4.6% | (888) 824-0200 |
| 21 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 184 | $8,639 | $47 | premium | 4.8% | (517) 279-5400 |
| 22 | TENNESSEE ORTHOPAEDIC ALLIANCE PA | NASHVILLE | TN | PHYSICIAN ASSISTANT | 352 | 174 | $30,798 | $177 | premium | 22.5% | (615) 329-6600 |
| 23 | NEW MEXICO ORTHOPAEDIC ASSOCIATES PC | ALBUQUERQUE | NM | PHYSICIAN ASSISTANT | 77 | 171 | $31,977 | $187 | premium | 36.5% | 50572443003208 |
| 24 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 170 | $41,770 | $246 | premium | 3.8% | (310) 423-0674 |
| 25 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 167 | $9,662 | $58 | premium | 5.3% | (781) 395-4909 |
| 26 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 164 | $8,856 | $54 | premium | 7.3% | (973) 971-6866 |
| 27 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 163 | $17,100 | $105 | premium | 11.7% | (314) 941-5600 |
| 28 | REGIONAL MEDICAL IMAGING PC | FLINT | OH | DIAGNOSTIC RADIOLOGY | 22 | 160 | $10,355 | $65 | premium | 4.2% | (810) 732-8870 |
| 29 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 158 | $69,994 | $443 | premium | 1.9% | — |
| 30 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 148 | $21,415 | $145 | premium | 2.5% | (954) 659-5000 |
| 31 | ATRIUS HEALTH INC | BOSTON | MA | NURSE PRACTITIONER | 1196 | 147 | $26,048 | $177 | premium | 4.7% | (617) 421-1000 |
| 32 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 142 | $20,600 | $145 | premium | 5.1% | — |
| 33 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 134 | $28,006 | $209 | premium | 18.7% | (803) 749-5101 |
| 34 | EAST RIVER MEDICAL IMAGING PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 10 | 131 | $39,300 | $300 | premium | 1.6% | (212) 288-7615 |
| 35 | IHA HEALTH SERVICES CORPORATION | YPSILANTI | MI | PHYSICIAN ASSISTANT | 1144 | 131 | $13,198 | $101 | premium | 8.1% | — |
| 36 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 130 | $13,650 | $105 | premium | 3.4% | (614) 293-8315 |
| 37 | SAINTS MEDICAL GROUP, LLC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 435 | 128 | $13,385 | $105 | premium | 23.7% | — |
| 38 | EMERGEORTHO PA | DURHAM | NC | PHYSICIAN ASSISTANT | 725 | 128 | $19,030 | $149 | premium | 12.1% | (919) 544-7270 |
| 39 | ORTHOPEDIC ONE, INC. | UPPER ARLINGTON | OH | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 280 | 124 | $18,600 | $150 | premium | 3.3% | (614) 827-8700 |
| 40 | REGIONAL MEDICAL IMAGING PC | FLINT | MI | DIAGNOSTIC RADIOLOGY | 22 | 115 | $8,535 | $74 | premium | 7.1% | (810) 732-8870 |
| 41 | TEMPLE FACULTY PRACTICE PLAN INC | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 1330 | 110 | $10,656 | $97 | premium | 4.0% | — |
| 42 | COLUMBUS RADIOLOGY CORP | COLUMBUS | CO | DIAGNOSTIC RADIOLOGY | 288 | 108 | $26,136 | $242 | premium | 19.5% | (614) 228-7231 |
| 43 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 107 | $8,659 | $81 | premium | 4.2% | (254) 724-2663 |
| 44 | TUCSON ORTHOPAEDIC INSTITUTE PROFESSIONAL CORPORATION | TUCSON | AZ | PHYSICIAN ASSISTANT | 111 | 106 | $16,854 | $159 | premium | 3.6% | (520) 382-8200 |
| 45 | ARIZONA COMMUNITY PHYSICIANS PC | TUCSON | AZ | FAMILY PRACTICE | 163 | 106 | $15,370 | $145 | premium | 3.6% | (520) 547-5725 |
| 46 | NY SOCIETY FOR THE RELIEF OF THE RUPTURED AND CRIPPLED | PARAMUS | NY | DIAGNOSTIC RADIOLOGY | 29 | 106 | $20,246 | $191 | premium | 1.3% | (201) 599-8000 |
| 47 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 101 | $24,442 | $242 | premium | 2.7% | (614) 228-7231 |
| 48 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 99 | $18,117 | $183 | premium | 3.9% | (214) 220-2468 |
| 49 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | MA | DIAGNOSTIC RADIOLOGY | 22 | 98 | $4,998 | $51 | premium | 3.1% | (508) 679-7136 |
| 50 | GUTHRIE MEDICAL GROUP PC | SAYRE | PA | PHYSICIAN ASSISTANT | 804 | 98 | $14,256 | $145 | premium | 3.5% | (570) 888-5858 |
| 51 | AMERICAN HIP INSTITUTE LLC | DES PLAINES | IL | ORTHOPEDIC SURGERY | 16 | 96 | $21,216 | $221 | premium | 2.4% | (630) 920-2323 |
| 52 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 95 | $5,510 | $58 | premium | 5.9% | (616) 363-7272 |
| 53 | OROVILLE HOSPITAL | OROVILLE | WI | DIAGNOSTIC RADIOLOGY | 93 | 94 | $5,546 | $59 | premium | 17.1% | (530) 533-8500 |
| 54 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 92 | $4,692 | $51 | premium | 2.3% | (312) 563-2875 |
| 55 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 91 | $5,915 | $65 | premium | 2.4% | (614) 566-5600 |
| 56 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 89 | $15,175 | $171 | premium | 1.1% | (212) 263-9700 |
| 57 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | NY | PHYSICIAN ASSISTANT | 2942 | 88 | $5,632 | $64 | premium | 1.1% | (617) 732-5500 |
| 58 | WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 1996 | 88 | $5,758 | $65 | premium | 15.6% | (304) 598-4865 |
| 59 | HEALTHONE CLINIC SERVICES ORTHOPEDIC SPECIALISTS LLC | ENGLEWOOD | CO | PHYSICIAN ASSISTANT | 78 | 87 | $16,305 | $187 | premium | 15.7% | (303) 209-2503 |
| 60 | HAMPTON ROADS ORTHOPAEDIC AND SPORTS MEDICINE LLC | NEWPORT NEWS | VA | ORTHOPEDIC SURGERY | 26 | 87 | $25,752 | $296 | premium | 7.3% | (757) 873-1554 |
| 61 | MILLENNIUM MEDICAL IMAGING PC | SARATOGA SPRINGS | NY | DIAGNOSTIC RADIOLOGY | 33 | 86 | $5,160 | $60 | premium | 1.0% | (518) 583-8461 |
| 62 | ORTHOPAEDIC CENTER PC | TULSA | OK | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 19 | 85 | $10,880 | $128 | premium | 15.7% | (918) 582-6800 |
| 63 | TRI-COUNTY ORTHOPAEDIC AND SPORTS MEDICINE PA | CEDAR KNOLLS | NJ | ORTHOPEDIC SURGERY | 42 | 85 | $19,125 | $225 | premium | 3.8% | (973) 538-2334 |
| 64 | OROVILLE HOSPITAL | OROVILLE | CA | DIAGNOSTIC RADIOLOGY | 93 | 85 | $5,015 | $59 | premium | 1.9% | (530) 533-8500 |
| 65 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 84 | $3,122 | $37 | premium | 16.6% | (913) 588-1227 |
| 66 | DIAGNOSTIC RADIOLOGY OF ANDERSON PA | ANDERSON | SC | DIAGNOSTIC RADIOLOGY | 40 | 82 | $4,756 | $58 | premium | 11.4% | (864) 512-1000 |
| 67 | BEACON ORTHOPAEDICS AND SPORTS MEDICINE LTD | CINCINNATI | OH | PHYSICIAN ASSISTANT | 468 | 82 | $7,626 | $93 | premium | 2.2% | (513) 354-3700 |
| 68 | SHARP REES-STEALY MEDICAL GROUP INC | SAN DIEGO | CA | PHYSICIAN ASSISTANT | 872 | 81 | $23,094 | $285 | premium | 1.8% | (858) 499-2600 |
| 69 | SOUTHWEST DIAGNOSTIC IMAGING LLC | SCOTTSDALE | AZ | DIAGNOSTIC RADIOLOGY | 124 | 81 | $23,085 | $285 | premium | 2.8% | (480) 425-5000 |
| 70 | MIDWEST ORTHOPEDIC CONSULTANTS SC | ORLAND PARK | IL | PHYSICIAN ASSISTANT | 27 | 79 | $15,089 | $191 | premium | 1.9% | (708) 226-3300 |
| 71 | TOLEDO CLINIC INCORPORATED | TOLEDO | OH | NURSE PRACTITIONER | 217 | 79 | $8,303 | $105 | premium | 2.1% | (419) 874-3246 |
| 72 | OHI WEST MEDICAL GROUP II LLC | ZEPHYRHILLS | FL | NURSE PRACTITIONER | 417 | 79 | $12,934 | $164 | premium | 1.3% | (813) 751-3375 |
| 73 | ORTHONJ LLC | MANASQUAN | NJ | PHYSICIAN ASSISTANT | 300 | 78 | $21,684 | $278 | premium | 3.5% | (732) 974-0404 |
| 74 | WINDSONG RADIOLOGY GROUP P C | WILLIAMSVILLE | NY | DIAGNOSTIC RADIOLOGY | 23 | 78 | $24,570 | $315 | premium | 0.9% | (716) 631-2500 |
| 75 | ARCH ORTHOPEDIC AND SPINE, LLC | ATHENS | GA | ORTHOPEDIC SURGERY | 5 | 77 | $6,930 | $90 | premium | 17.7% | (706) 389-8941 |
| 76 | PHYSICIAN AFFILIATE GROUP OF NEW YORK PC | BROOKLYN | NY | PHYSICIAN ASSISTANT | 1231 | 76 | $17,676 | $233 | premium | 0.9% | (718) 616-5356 |
| 77 | SMI IMAGING LLC | PHOENIX | WA | DIAGNOSTIC RADIOLOGY | 364 | 76 | $17,324 | $228 | premium | 23.5% | (480) 753-6161 |
| 78 | RADIOLOGY ASSOCIATES OF PENSACOLA PA | PENSACOLA | FL | DIAGNOSTIC RADIOLOGY | 21 | 76 | $3,572 | $47 | premium | 1.3% | (850) 208-6000 |
| 79 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 75 | $5,805 | $77 | premium | 0.9% | (914) 241-1050 |
| 80 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 75 | $16,431 | $219 | premium | 1.7% | (916) 983-7476 |
| 81 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | MI | DIAGNOSTIC RADIOLOGY | 32 | 75 | $3,675 | $49 | premium | 4.7% | (231) 935-5000 |
| 82 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 73 | $7,961 | $109 | premium | 1.2% | (239) 936-2316 |
| 83 | DRS. MCCLOW, CLARK AND BERK PA | JACKSONVILLE | FL | DIAGNOSTIC RADIOLOGY | 22 | 72 | $7,776 | $108 | premium | 1.2% | (904) 381-9994 |
| 84 | MEMORIAL HOSPITAL AT GULFPORT | GULFPORT | MS | NURSE PRACTITIONER | 462 | 72 | $11,520 | $160 | premium | 76.6% | — |
| 85 | RADIOLOGY INC | HUNTINGTON | WV | DIAGNOSTIC RADIOLOGY | 28 | 71 | $4,254 | $60 | premium | 12.6% | (304) 526-1140 |
| 86 | BEAUFORT MEDICAL IMAGING INC | BEAUFORT | SC | DIAGNOSTIC RADIOLOGY | 9 | 69 | $6,210 | $90 | premium | 9.6% | (843) 522-5200 |
| 87 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 69 | $4,222 | $61 | premium | 6.5% | (984) 215-5556 |
| 88 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 68 | $4,488 | $66 | premium | 4.2% | (734) 763-5459 |
| 89 | MARY WASHINGTON HEALTHCARE PHYSICIANS | FREDERICKSBURG | VA | PHYSICIAN ASSISTANT | 307 | 68 | $9,520 | $140 | premium | 5.7% | (540) 741-1100 |
| 90 | NEBRASKA ORTHOPAEDIC CENTER PC | LINCOLN | NE | PHYSICIAN ASSISTANT | 61 | 68 | $13,396 | $197 | premium | 21.0% | (402) 219-7700 |
| 91 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 67 | $20,587 | $307 | premium | 1.5% | (916) 681-8852 |
| 92 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 67 | $10,421 | $156 | premium | 1.6% | (217) 544-6464 |
| 93 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 66 | $32,340 | $490 | premium | 2.6% | (713) 592-5433 |
| 94 | ORTHOPEDICSNY, LLP | ALBANY | NY | PHYSICIAN ASSISTANT | 112 | 65 | $7,433 | $114 | premium | 0.8% | (518) 489-2663 |
| 95 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 63 | $14,097 | $224 | premium | 1.4% | (650) 723-4000 |
| 96 | PLACERVILLE RADIOLOGY MEDICAL GROUP INC | PLACERVILLE | CA | DIAGNOSTIC RADIOLOGY | 64 | 63 | $6,048 | $96 | premium | 1.4% | (530) 622-1441 |
| 97 | SOUTH GEORGIA RADIOLOGY ASSOCIATES LLC | BAXLEY | GA | DIAGNOSTIC RADIOLOGY | 35 | 62 | $4,407 | $71 | premium | 14.2% | (912) 367-9841 |
| 98 | BUTLER IMAGING AND INTERVENTIONAL ASSOCIATES LLC | BUTLER | PA | DIAGNOSTIC RADIOLOGY | 44 | 60 | $3,400 | $57 | premium | 2.2% | — |
| 99 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | RI | DIAGNOSTIC RADIOLOGY | 22 | 59 | $3,009 | $51 | premium | 33.9% | (508) 679-7136 |
| 100 | ADR LLC | CUMBERLAND | MD | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 4 | 59 | $7,438 | $126 | premium | 3.1% | (301) 777-3522 |
Showing the top 100 of 360 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 →