71101 — X-ray of ribs on side of body, minimum of 3 views
48,931 observed fee-for-service (51%) · ~47,503 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; 2 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 | 71101 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PATIENT FIRST MARYLAND MEDICAL GROUP PLLC | BALTIMORE | MD | PHYSICIAN ASSISTANT | 262 | 924 | $101,392 | $110 | premium | 18.7% | (443) 461-1997 |
| 2 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 678 | $125,510 | $185 | premium | 5.6% | (916) 681-8852 |
| 3 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 660 | $53,999 | $82 | premium | 7.2% | — |
| 4 | CITY MEDICAL OF UPPER EAST SIDE PLLC | NEW YORK | NY | PHYSICIAN ASSISTANT | 657 | 615 | $63,960 | $104 | premium | 8.5% | (212) 271-4364 |
| 5 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 607 | $105,693 | $174 | premium | 5.0% | (858) 455-9100 |
| 6 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 575 | $25,391 | $44 | premium | 14.2% | (252) 752-5000 |
| 7 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 543 | $98,204 | $181 | premium | 4.5% | (415) 600-1020 |
| 8 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 483 | $47,770 | $99 | premium | 5.3% | — |
| 9 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 469 | $34,883 | $74 | premium | 3.9% | (760) 773-1251 |
| 10 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 461 | $40,401 | $88 | premium | 13.7% | (248) 964-1187 |
| 11 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 458 | $25,599 | $56 | premium | 13.6% | (616) 363-7272 |
| 12 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 415 | $14,525 | $35 | premium | 9.7% | (804) 288-8327 |
| 13 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 407 | $60,410 | $148 | premium | 5.6% | (914) 241-1050 |
| 14 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 405 | $16,200 | $40 | premium | 16.9% | (812) 422-3254 |
| 15 | PATIENT FIRST RICHMOND MEDICAL GROUP PLLC | LEESBURG | VA | PHYSICIAN ASSISTANT | 330 | 376 | $47,464 | $126 | premium | 8.7% | (703) 840-1396 |
| 16 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 373 | $56,543 | $152 | premium | 5.1% | (631) 225-7200 |
| 17 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 358 | $39,022 | $109 | premium | 3.9% | (847) 459-1160 |
| 18 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 351 | $19,146 | $55 | premium | 7.0% | (817) 321-0470 |
| 19 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 341 | $40,960 | $120 | premium | 2.8% | (916) 983-7476 |
| 20 | WOONSOCKET URGENT CARE PC | EAST WALPOLE | MA | PHYSICIAN ASSISTANT | 24 | 323 | $19,380 | $60 | premium | 5.5% | (781) 255-0500 |
| 21 | SOUTHERN DELAWARE IMAGING ASSOC | LEWES | DE | DIAGNOSTIC RADIOLOGY | 40 | 303 | $13,938 | $46 | premium | 42.7% | (302) 645-3636 |
| 22 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 300 | $10,149 | $34 | premium | 43.6% | (801) 261-8346 |
| 23 | PATIENT FIRST PENNSYLVANIA MEDICAL GROUP PLLC | HARRISBURG | PA | PHYSICIAN ASSISTANT | 146 | 293 | $39,836 | $136 | premium | 5.1% | (717) 943-1566 |
| 24 | MUNSTER RADIOLOGY GROUP PC | MUNSTER | IN | DIAGNOSTIC RADIOLOGY | 26 | 279 | $12,555 | $45 | premium | 11.6% | (219) 836-1600 |
| 25 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | MA | DIAGNOSTIC RADIOLOGY | 22 | 268 | $10,988 | $41 | premium | 4.6% | (508) 679-7136 |
| 26 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 260 | $16,446 | $63 | premium | 4.4% | (508) 334-1000 |
| 27 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 242 | $11,764 | $49 | premium | 23.1% | (501) 202-2093 |
| 28 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 241 | $20,515 | $85 | premium | 3.2% | (941) 255-3535 |
| 29 | LEXINGTON HEALTH INC | WEST COLUMBIA | SC | NURSE PRACTITIONER | 909 | 238 | $98,764 | $415 | premium | 8.8% | (803) 744-4900 |
| 30 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 233 | $56,215 | $241 | premium | 2.5% | (217) 544-6464 |
| 31 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 232 | $8,881 | $38 | premium | 16.0% | (319) 364-0121 |
| 32 | ATRIUS HEALTH INC | BOSTON | MA | NURSE PRACTITIONER | 1196 | 231 | $30,730 | $133 | premium | 3.9% | (617) 421-1000 |
| 33 | NORTH SHORE RADIOLOGICAL ASSOCIATES INC | WOBURN | MA | DIAGNOSTIC RADIOLOGY | 15 | 231 | $8,547 | $37 | premium | 3.9% | (781) 787-3003 |
| 34 | NORTH SHORE LIJ URGENT CARE PC | PLAINVIEW | NY | PHYSICIAN ASSISTANT | 396 | 228 | $29,868 | $131 | premium | 3.1% | (516) 537-9061 |
| 35 | MILLENNIUM MEDICAL IMAGING PC | SARATOGA SPRINGS | NY | DIAGNOSTIC RADIOLOGY | 33 | 227 | $10,442 | $46 | premium | 3.1% | (518) 583-8461 |
| 36 | NORTHWEST RADIOLOGY ASSOCIATES SC | ARLINGTON HEIGHTS | IL | DIAGNOSTIC RADIOLOGY | 21 | 222 | $9,990 | $45 | premium | 2.4% | (847) 618-1000 |
| 37 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 220 | $8,776 | $40 | premium | 4.7% | (517) 279-5400 |
| 38 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 218 | $13,516 | $62 | premium | 4.7% | (614) 566-5600 |
| 39 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 213 | $22,908 | $108 | premium | 2.8% | (904) 399-5550 |
| 40 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | MI | DIAGNOSTIC RADIOLOGY | 32 | 213 | $8,733 | $41 | premium | 6.3% | (231) 935-5000 |
| 41 | CALIFORNIA MANAGED IMAGING MEDICAL GROUP INC | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 64 | 212 | $29,248 | $138 | premium | 1.7% | (800) 841-4236 |
| 42 | RADIOLOGY CONSULTANTS PC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 46 | 212 | $7,420 | $35 | premium | 12.8% | (402) 717-4760 |
| 43 | SARAH BUSH LINCOLN HEALTH CENTER | MATTOON | IL | NURSE PRACTITIONER | 405 | 211 | $49,027 | $232 | premium | 2.3% | — |
| 44 | SMB RADIOLOGY P A | GULFPORT | MS | DIAGNOSTIC RADIOLOGY | 23 | 210 | $11,340 | $54 | premium | 13.6% | (228) 314-7226 |
| 45 | SANFORD MEDICAL CENTER FARGO | FARGO | ND | NURSE PRACTITIONER | 1198 | 204 | $14,112 | $69 | premium | 29.4% | (701) 234-2000 |
| 46 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 203 | $9,541 | $47 | premium | 7.5% | — |
| 47 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | MA | DIAGNOSTIC RADIOLOGY | 424 | 201 | $10,295 | $51 | premium | 3.4% | (781) 395-4909 |
| 48 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 198 | $43,110 | $218 | premium | 2.6% | (904) 953-2000 |
| 49 | IHA HEALTH SERVICES CORPORATION | YPSILANTI | MI | PHYSICIAN ASSISTANT | 1144 | 194 | $12,416 | $64 | premium | 5.8% | — |
| 50 | VISTA RADIOLOGY, PC | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 68 | 193 | $13,291 | $69 | premium | 7.4% | (865) 546-9484 |
| 51 | SANFORD CLINIC | SIOUX FALLS | SD | DIAGNOSTIC RADIOLOGY | 276 | 193 | $10,615 | $55 | premium | 29.1% | (605) 328-8700 |
| 52 | STEPHEN W BROWN AND RADIOLOGY ASSOCIATES OF AUGUSTA LLP | AUGUSTA | GA | DIAGNOSTIC RADIOLOGY | 19 | 191 | $12,226 | $64 | premium | 8.2% | (706) 774-5035 |
| 53 | ASHLAND HOSPITAL CORPORATION | ASHLAND | KY | NURSE PRACTITIONER | 170 | 189 | $6,987 | $37 | premium | 10.0% | (606) 324-8060 |
| 54 | RADIOLOGY INC | HUNTINGTON | WV | DIAGNOSTIC RADIOLOGY | 28 | 188 | $10,716 | $57 | premium | 21.5% | (304) 526-1140 |
| 55 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 187 | $18,552 | $99 | premium | 3.7% | (281) 206-9020 |
| 56 | PHYSICIANS OF FALMOUTH HOSPITAL | FALMOUTH | MA | NURSE PRACTITIONER | 92 | 187 | $9,911 | $53 | premium | 3.2% | (508) 771-1800 |
| 57 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 184 | $25,552 | $139 | premium | 3.7% | (855) 504-4544 |
| 58 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 180 | $7,858 | $44 | premium | 3.9% | — |
| 59 | DARTMOUTH-HITCHCOCK CLINIC | LEBANON | NH | PHYSICIAN ASSISTANT | 1441 | 179 | $29,659 | $166 | premium | 16.1% | (603) 650-5000 |
| 60 | DRS. MCCLOW, CLARK AND BERK PA | JACKSONVILLE | FL | DIAGNOSTIC RADIOLOGY | 22 | 177 | $15,399 | $87 | premium | 2.3% | (904) 381-9994 |
| 61 | SOUTHERN NEW HAMPSHIRE RADIOLOGY CONSULTANTS PC | BEDFORD | NH | DIAGNOSTIC RADIOLOGY | 42 | 176 | $8,370 | $48 | premium | 15.8% | (603) 627-1661 |
| 62 | RADIOLOGICAL PHYSICIAN ASSOCIATES INC | BRIDGEPORT | WV | DIAGNOSTIC RADIOLOGY | 28 | 173 | $10,207 | $59 | premium | 19.8% | (681) 342-1000 |
| 63 | RADIOLOGY SUBSPECIALISTS OF NORTHERN ILLINOIS LLC | GENEVA | IL | DIAGNOSTIC RADIOLOGY | 32 | 172 | $14,181 | $82 | premium | 1.9% | (630) 208-4412 |
| 64 | RADIOLOGY ASSOCIATES OF RICHMOND INC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 70 | 171 | $9,274 | $54 | premium | 4.0% | (804) 272-8806 |
| 65 | NAPERVILLE RADIOLOGISTS SC | NAPERVILLE | IL | DIAGNOSTIC RADIOLOGY | 16 | 169 | $25,289 | $150 | premium | 1.8% | (630) 484-5493 |
| 66 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 168 | $18,984 | $113 | premium | 3.9% | (757) 594-3900 |
| 67 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | MA | DIAGNOSTIC RADIOLOGY | 60 | 167 | $10,325 | $62 | premium | 2.8% | (413) 827-7400 |
| 68 | RADIOLOGY ASSOCIATES OF NORTHERN KENTUCKY PLLC | EDGEWOOD | KY | DIAGNOSTIC RADIOLOGY | 56 | 166 | $7,636 | $46 | premium | 8.8% | (859) 301-2160 |
| 69 | RADIOLOGY ASSOCIATES OF ABILENE PA | ABILENE | TX | DIAGNOSTIC RADIOLOGY | 25 | 166 | $7,746 | $47 | premium | 3.3% | (325) 670-2000 |
| 70 | CENTRAL ILLINOIS RADIOLOGICAL ASSOCIATES LTD | PEORIA | IL | DIAGNOSTIC RADIOLOGY | 196 | 165 | $11,385 | $69 | premium | 1.8% | (309) 655-2000 |
| 71 | WINCHESTER RADIOLOGISTS PC | WINCHESTER | VA | DIAGNOSTIC RADIOLOGY | 79 | 165 | $10,395 | $63 | premium | 3.8% | (540) 686-1600 |
| 72 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | ME | DIAGNOSTIC RADIOLOGY | 281 | 161 | $6,762 | $42 | premium | 26.5% | (207) 828-2160 |
| 73 | RADIOLOGY GROUP PC SC | DAVENPORT | IA | DIAGNOSTIC RADIOLOGY | 18 | 157 | $9,420 | $60 | premium | 10.9% | (563) 344-5490 |
| 74 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 154 | $12,196 | $79 | premium | 1.7% | (708) 216-8372 |
| 75 | RADIOLOGY ASSOCIATES LLC | BATON ROUGE | LA | DIAGNOSTIC RADIOLOGY | 79 | 152 | $7,477 | $49 | premium | 12.6% | (225) 757-0552 |
| 76 | ST JUDE RADIOLOGY MEDICAL GROUP INC | FULLERTON | CA | DIAGNOSTIC RADIOLOGY | 61 | 152 | $8,664 | $57 | premium | 1.3% | 71499230001805 |
| 77 | X-RAY ASSOCIATES OF LOUISVILLE PSC | LOUISVILLE | KY | DIAGNOSTIC RADIOLOGY | 55 | 150 | $9,495 | $63 | premium | 7.9% | (502) 897-8121 |
| 78 | SOUTH GEORGIA RADIOLOGY ASSOCIATES LLC | BAXLEY | GA | DIAGNOSTIC RADIOLOGY | 35 | 150 | $9,420 | $63 | premium | 6.4% | (912) 367-9841 |
| 79 | ROPER RADIOLOGISTS PA | CHARLESTON | SC | DIAGNOSTIC RADIOLOGY | 40 | 148 | $27,084 | $183 | premium | 5.5% | (843) 724-2161 |
| 80 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 146 | $8,030 | $55 | premium | 18.1% | (401) 626-3900 |
| 81 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 146 | $10,633 | $73 | premium | 2.5% | (617) 724-0287 |
| 82 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 144 | $18,597 | $129 | premium | 1.9% | (954) 659-5000 |
| 83 | BLUE RIDGE RADIOLOGY PC | LYNCHBURG | TN | DIAGNOSTIC RADIOLOGY | 76 | 143 | $7,055 | $49 | premium | 5.5% | (423) 968-1144 |
| 84 | OSF MULTI-SPECIALTY GROUP | PEORIA | IL | NURSE PRACTITIONER | 2091 | 142 | $20,503 | $144 | premium | 1.6% | (309) 683-5050 |
| 85 | OKLAHOMA RADIOLOGY GROUP P C | OKLAHOMA CITY | OK | DIAGNOSTIC RADIOLOGY | 61 | 139 | $6,255 | $45 | premium | 11.7% | (405) 272-7000 |
| 86 | OWENSBORO HEALTH MEDICAL GROUP INC | OWENSBORO | KY | NURSE PRACTITIONER | 467 | 139 | $5,200 | $37 | premium | 7.4% | — |
| 87 | RADIOLOGY INC | GOSHEN | IN | DIAGNOSTIC RADIOLOGY | 35 | 136 | $8,624 | $63 | premium | 5.7% | (574) 535-2693 |
| 88 | LAHEY CLINIC INC | BURLINGTON | MA | NURSE PRACTITIONER | 1400 | 132 | $7,779 | $59 | premium | 2.2% | — |
| 89 | CHRISTIE CLINIC, PLLC | CHAMPAIGN | IL | INTERNAL MEDICINE | 220 | 130 | $39,474 | $304 | premium | 1.4% | (217) 366-1200 |
| 90 | PARLEE AND TATEM RADIOLOGIC ASSOCIATES LTD | DOYLESTOWN | PA | DIAGNOSTIC RADIOLOGY | 15 | 127 | $6,096 | $48 | premium | 2.2% | (215) 345-2290 |
| 91 | RADIOLOGY ASSOCIATES OF ALBUQUERQUE PA | ALBUQUERQUE | NM | DIAGNOSTIC RADIOLOGY | 101 | 127 | $6,223 | $49 | premium | 24.4% | (505) 332-5827 |
| 92 | RADIOLOGISTS OF UNIV OF ROCHESTER | ROCHESTER | NY | DIAGNOSTIC RADIOLOGY | 134 | 125 | $7,395 | $59 | premium | 1.7% | — |
| 93 | CENTRAL KENTUCKY RADIOLOGY PLLC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 56 | 124 | $4,654 | $38 | premium | 6.6% | (859) 313-1000 |
| 94 | KETTERING NETWORK RADIOLOGISTS INC | DAYTON | OH | DIAGNOSTIC RADIOLOGY | 74 | 124 | $6,696 | $54 | premium | 2.7% | (937) 558-3800 |
| 95 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 123 | $13,290 | $108 | premium | 2.5% | (888) 601-0943 |
| 96 | SOUTH BALDWIN DIAGNOSTIC IMAGING ASSOCIATES, P.C. | FOLEY | AL | DIAGNOSTIC RADIOLOGY | 4 | 123 | $6,888 | $56 | premium | 10.1% | (251) 949-3513 |
| 97 | RADIOLOGY INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 57 | 121 | $6,655 | $55 | premium | 2.6% | (614) 234-5100 |
| 98 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 118 | $9,311 | $79 | premium | 2.3% | (254) 724-2663 |
| 99 | RADIOLOGY CHARTERED | MARQUETTE | WI | DIAGNOSTIC RADIOLOGY | 37 | 113 | $10,396 | $92 | premium | 5.4% | (920) 499-2766 |
| 100 | SOUTHERN NEW ENGLAND RADIOLOGY INC | FALL RIVER | RI | DIAGNOSTIC RADIOLOGY | 22 | 112 | $4,802 | $43 | premium | 13.9% | (508) 679-7136 |
Showing the top 100 of 680 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 →