38505 — Needle biopsy or removal of surface lymph nodes
3,489 observed fee-for-service (49%) · ~3,606 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 | 38505 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 219 | $270,541 | $1,235 | premium | 50.5% | (713) 592-5433 |
| 2 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 146 | $60,689 | $416 | premium | 23.4% | (626) 256-4673 |
| 3 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 135 | $134,402 | $996 | premium | 91.8% | (507) 284-2511 |
| 4 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 123 | $30,883 | $251 | premium | 26.1% | (813) 745-4673 |
| 5 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 109 | $71,782 | $659 | premium | 17.5% | (415) 600-1020 |
| 6 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 103 | $110,387 | $1,072 | premium | 21.8% | (904) 953-2000 |
| 7 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 99 | $79,871 | $807 | premium | 18.2% | (631) 751-3000 |
| 8 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 69 | $47,610 | $690 | premium | 28.5% | (314) 747-3000 |
| 9 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 67 | $36,825 | $550 | premium | 55.8% | (901) 683-0055 |
| 10 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 63 | $21,924 | $348 | premium | 52.5% | — |
| 11 | ROSWELL PARK CANCER INSTITUTE | BUFFALO | NY | NURSE PRACTITIONER | 502 | 58 | $61,964 | $1,068 | premium | 10.6% | (716) 845-2300 |
| 12 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 55 | $16,016 | $291 | premium | 12.7% | (817) 321-0470 |
| 13 | WILMINGTON SURGICAL ASSOCIATES PA | WILMINGTON | NC | GENERAL SURGERY | 9 | 55 | $17,545 | $319 | premium | 50.9% | (910) 763-7363 |
| 14 | ENLOE MEDICAL CENTER | CHICO | CA | DIAGNOSTIC RADIOLOGY | 362 | 53 | $10,017 | $189 | premium | 8.5% | (530) 332-4470 |
| 15 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 47 | $31,302 | $666 | premium | 16.4% | — |
| 16 | CAROLINA RADIOLOGY ASSOCIATES LLC | MYRTLE BEACH | SC | DIAGNOSTIC RADIOLOGY | 63 | 46 | $15,088 | $328 | premium | 51.7% | (843) 692-1916 |
| 17 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 44 | $58,080 | $1,320 | premium | 8.1% | (631) 225-7200 |
| 18 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 42 | $24,660 | $587 | premium | 34.4% | (319) 678-8201 |
| 19 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 42 | $23,562 | $561 | premium | 63.6% | (205) 934-3460 |
| 20 | COMMUNITY HOSPITAL OF THE MONTEREY PENINSULA | MONTEREY | CA | EMERGENCY MEDICINE | 141 | 39 | $19,122 | $490 | premium | 6.2% | (831) 624-5311 |
| 21 | X-RAY ASSOCIATES OF LOUISVILLE PSC | LOUISVILLE | KY | DIAGNOSTIC RADIOLOGY | 55 | 38 | $22,694 | $597 | premium | 76.0% | (502) 897-8121 |
| 22 | BROWN, CROFT, FRAZIER, PA | ANNAPOLIS | MD | DIAGNOSTIC RADIOLOGY | 28 | 37 | $5,735 | $155 | premium | 20.9% | (410) 266-2770 |
| 23 | NORTHSIDE RADIOLOGY ASSOCIATES LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 370 | 37 | $48,803 | $1,319 | premium | 62.7% | (404) 851-6577 |
| 24 | UNIVERSITY OF VIRGINIA PHYSICIANS GROUP | CHARLOTTESVILLE | VA | NURSE PRACTITIONER | 1704 | 36 | $11,916 | $331 | premium | 22.1% | (434) 924-5959 |
| 25 | MSKCC RADIOLOGY GROUP | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 199 | 36 | $18,360 | $510 | premium | 6.6% | (646) 888-5300 |
| 26 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 35 | $46,165 | $1,319 | premium | 7.4% | (904) 399-5550 |
| 27 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 34 | $32,175 | $946 | premium | 25.0% | (800) 603-0558 |
| 28 | SOUTH SHORE RADIOLOGICAL ASSOCIATES INC | SOUTH WEYMOUTH | MA | DIAGNOSTIC RADIOLOGY | 36 | 33 | $7,854 | $238 | premium | 22.3% | (781) 340-8000 |
| 29 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 32 | $8,734 | $273 | premium | 21.6% | — |
| 30 | THE MILTON S HERSHEY MEDICAL CENTER PHYSICIANS GROUP | HERSHEY | PA | PHYSICIAN ASSISTANT | 1599 | 32 | $10,362 | $324 | premium | 17.1% | (717) 531-5638 |
| 31 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 31 | $11,718 | $378 | premium | 16.6% | — |
| 32 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 31 | $9,678 | $312 | premium | 55.4% | — |
| 33 | OSU RADIOLOGY LLC | COLUMBUS | PA | DIAGNOSTIC RADIOLOGY | 174 | 29 | $8,700 | $300 | premium | 15.5% | (614) 293-8315 |
| 34 | MERCY CLINIC SPRINGFIELD COMMUNITIES | SPRINGFIELD | MO | PHYSICIAN ASSISTANT | 1128 | 29 | $7,656 | $264 | premium | 12.0% | — |
| 35 | MISSION HEALTH COMMUNITY MULTISPECIALTY PROVIDERS LLC | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 593 | 28 | $7,112 | $254 | premium | 25.9% | (828) 213-1740 |
| 36 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 28 | $6,692 | $239 | premium | 23.0% | (319) 364-0121 |
| 37 | AVERA MCKENNAN | SIOUX FALLS | SD | NURSE PRACTITIONER | 964 | 28 | $2,139 | $76 | premium | 68.3% | (605) 322-5180 |
| 38 | BOONE PHYSICIAN SERVICES LLC | COLUMBIA | MO | PHYSICIAN ASSISTANT | 236 | 26 | $5,330 | $205 | premium | 10.7% | (573) 815-8000 |
| 39 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 26 | $33,982 | $1,307 | premium | 4.8% | (212) 263-9700 |
| 40 | SAINT LUKES PHYSICIAN GROUP INC | KANSAS CITY | MO | NURSE PRACTITIONER | 1228 | 25 | $7,875 | $315 | premium | 10.3% | — |
| 41 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 24 | $6,000 | $250 | premium | 14.6% | (973) 971-6866 |
| 42 | CHARLESTON AREA MEDICAL CENTER INC | CHARLESTON | WV | NURSE PRACTITIONER | 970 | 24 | $6,006 | $250 | premium | 48.0% | (304) 388-5432 |
| 43 | RED RIVER CONSULTANTS INC | SHREVEPORT | LA | DIAGNOSTIC RADIOLOGY | 60 | 24 | $11,600 | $483 | premium | 53.3% | (318) 212-4550 |
| 44 | MUNSTER RADIOLOGY GROUP PC | MUNSTER | IL | DIAGNOSTIC RADIOLOGY | 26 | 23 | $9,222 | $401 | premium | 8.0% | (219) 836-1600 |
| 45 | UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC | GLEN BURNIE | TX | NURSE PRACTITIONER | 458 | 22 | $5,786 | $263 | premium | 5.1% | (410) 761-1222 |
| 46 | DIAGNOSTIC IMAGING SERVICES LLC | HAGERSTOWN | MD | DIAGNOSTIC RADIOLOGY | 17 | 21 | $4,200 | $200 | premium | 11.9% | (301) 714-4200 |
| 47 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 21 | $3,794 | $181 | premium | 50.0% | (801) 261-8346 |
| 48 | DECATUR MEMORIAL HOSPITAL | DECATUR | CA | INTERNAL MEDICINE | 184 | 20 | $7,860 | $393 | premium | 3.2% | (217) 876-8121 |
| 49 | MSKCC RADIOLOGY GROUP | NEW YORK | CA | DIAGNOSTIC RADIOLOGY | 199 | 20 | $8,180 | $409 | premium | 3.2% | (646) 888-5300 |
| 50 | CHRISTIANA CARE HEALTH SERVICES INC | NEWARK | DE | PHYSICIAN ASSISTANT | 1537 | 19 | $3,719 | $196 | premium | 100.0% | — |
| 51 | ADR LLC | CUMBERLAND | MD | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 4 | 19 | $5,029 | $265 | premium | 10.7% | (301) 777-3522 |
| 52 | DRS. MCCLOW, CLARK AND BERK PA | JACKSONVILLE | FL | DIAGNOSTIC RADIOLOGY | 22 | 18 | $8,766 | $487 | premium | 3.8% | (904) 381-9994 |
| 53 | MEDICAL IMAGING AND THERAPEUTICS LLC | LADY LAKE | FL | DIAGNOSTIC RADIOLOGY | 4 | 17 | $6,086 | $358 | premium | 3.6% | (352) 261-5502 |
| 54 | RADIOLOGISTS OF NORTH IOWA PC | MASON CITY | IA | DIAGNOSTIC RADIOLOGY | 14 | 17 | $3,604 | $212 | premium | 13.9% | (641) 424-0102 |
| 55 | DEACONESS MEMORIAL MEDICAL CENTER INC | JASPER | IL | NURSE PRACTITIONER | 131 | 17 | $2,958 | $174 | premium | 5.9% | — |
| 56 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 17 | $17,068 | $1,004 | premium | 3.1% | — |
| 57 | NEWPORT HARBOR RADIOLOGY ASSOCIATES MEDICAL GROUP INC | IRVINE | NJ | DIAGNOSTIC RADIOLOGY | 66 | 17 | $5,474 | $322 | premium | 10.4% | (949) 557-0720 |
| 58 | ENT SPECIALISTS, INC | BROCKTON | MA | OTOLARYNGOLOGY | 19 | 17 | $7,650 | $450 | premium | 11.5% | (508) 588-8034 |
| 59 | CAPE RADIOLOGY GROUP PC | CAPE GIRARDEAU | MO | DIAGNOSTIC RADIOLOGY | 53 | 16 | $5,040 | $315 | premium | 6.6% | (573) 334-6071 |
| 60 | WINCHESTER RADIOLOGISTS PC | WINCHESTER | VA | DIAGNOSTIC RADIOLOGY | 79 | 16 | $5,457 | $341 | premium | 9.8% | (540) 686-1600 |
| 61 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 16 | $7,702 | $481 | premium | 41.0% | (405) 271-4311 |
| 62 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 16 | $13,589 | $849 | premium | 8.6% | (570) 271-6144 |
| 63 | FLORIDA RADIOLOGY CONSULTANTS P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 67 | 16 | $4,368 | $273 | premium | 3.4% | (239) 938-3571 |
| 64 | EVANSVILLE RADIOLOGY PC | EVANSVILLE | IN | DIAGNOSTIC RADIOLOGY | 29 | 15 | $4,140 | $276 | premium | 13.9% | (812) 422-3254 |
| 65 | PRIMA MEDICAL FOUNDATION | GREENBRAE | CA | DIAGNOSTIC RADIOLOGY | 29 | 15 | $37,995 | $2,533 | premium | 2.4% | (415) 925-7301 |
| 66 | STONY BROOK RADIOLOGY, UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | DIAGNOSTIC RADIOLOGY | 59 | 15 | $9,750 | $650 | premium | 2.8% | (631) 638-2121 |
| 67 | THE CURATORS OF THE UNIVERSITY OF MISSOURI | COLUMBIA | MO | PHYSICIAN ASSISTANT | 1116 | 15 | $4,275 | $285 | premium | 6.2% | (573) 882-2667 |
| 68 | BEACON MEDICAL GROUP INC | SOUTH BEND | IN | NURSE PRACTITIONER | 575 | 15 | $6,112 | $407 | premium | 13.9% | (574) 647-7275 |
| 69 | UNIVERSITY OF UTAH ADULT SERVICES | SALT LAKE CITY | CA | PHYSICIAN ASSISTANT | 1783 | 15 | $4,961 | $331 | premium | 2.4% | (801) 581-2121 |
| 70 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 15 | $9,594 | $640 | premium | 2.4% | (310) 423-0674 |
| 71 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | NE | PHYSICIAN ASSISTANT | 3707 | 15 | $2,919 | $195 | premium | 15.5% | (202) 429-2401 |
| 72 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 14 | $4,760 | $340 | premium | 8.6% | (804) 288-8327 |
| 73 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 14 | $4,886 | $349 | premium | 25.0% | (614) 566-5600 |
| 74 | MERITAS HEALTH CORPORATION | NORTH KANSAS CITY | MO | NEUROLOGY | 498 | 14 | $3,216 | $230 | premium | 5.8% | (816) 472-5157 |
| 75 | MEDICAL ASSOCIATES OF NORTHWEST ARKANSAS, PA | FAYETTEVILLE | AR | FAMILY PRACTICE | 106 | 14 | $4,395 | $314 | premium | 11.7% | (479) 521-0200 |
| 76 | CHRISTUS HEALTH ARK-LA-TEX | TEXARKANA | TX | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 36 | 14 | $2,380 | $170 | premium | 3.2% | (903) 614-1000 |
| 77 | WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 1996 | 14 | $2,856 | $204 | premium | 28.0% | (304) 598-4865 |
| 78 | HACKENSACK RADIOLOGY GROUP PA | HACKENSACK | NJ | DIAGNOSTIC RADIOLOGY | 49 | 13 | $6,812 | $524 | premium | 7.9% | (201) 488-2660 |
| 79 | PULMONARY CONSULTANTS OF OCALA , PLLC | OCALA | FL | NURSE PRACTITIONER | 4 | 13 | $1,640 | $126 | premium | 2.8% | 3522372826103 |
| 80 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 13 | $14,727 | $1,133 | premium | 54.2% | (913) 588-1227 |
| 81 | ROSE IMAGING SPECIALISTS PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 43 | 13 | $6,412 | $493 | premium | 3.0% | (866) 257-6864 |
| 82 | DIAGNOSTIC IMAGING ASSOCIATES, P.C. | DES MOINES | IA | DIAGNOSTIC RADIOLOGY | 21 | 13 | $4,602 | $354 | premium | 10.7% | (515) 643-2667 |
| 83 | X-RAY MEDICAL GROUP INC | LA MESA | CA | DIAGNOSTIC RADIOLOGY | 48 | 13 | $3,393 | $261 | premium | 2.1% | (619) 740-4000 |
| 84 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 13 | $9,308 | $716 | premium | 2.1% | (800) 926-8273 |
| 85 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 13 | $6,513 | $501 | premium | 2.1% | (877) 827-7463 |
| 86 | RADIOLOGY OF HUNSTVILLE PC | HUNTSVILLE | AL | DIAGNOSTIC RADIOLOGY | 63 | 13 | $3,120 | $240 | premium | 19.7% | 2565390457145 |
| 87 | MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC | MEDFORD | NJ | DIAGNOSTIC RADIOLOGY | 424 | 13 | $5,072 | $390 | premium | 7.9% | (781) 395-4909 |
| 88 | NOVANT HEALTH MEDICAL GROUP, LLC | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 2389 | 13 | $17,615 | $1,355 | premium | 12.0% | (704) 384-8200 |
| 89 | FREEMAN-OAK HILL HEALTH SYSTEM | JOPLIN | MO | NURSE PRACTITIONER | 382 | 12 | $2,952 | $246 | premium | 5.0% | (417) 347-8200 |
| 90 | RADIOLOGICAL PHYSICIAN ASSOCIATES INC | BRIDGEPORT | WV | DIAGNOSTIC RADIOLOGY | 28 | 12 | $3,612 | $301 | premium | 24.0% | (681) 342-1000 |
| 91 | ST PAUL PLACE SPECIALISTS, INC. | BALTIMORE | MD | PHYSICIAN ASSISTANT | 337 | 12 | $2,760 | $230 | premium | 6.8% | (410) 663-8100 |
| 92 | LEXINGTON RADIOLOGY ASSOCIATES | WEST COLUMBIA | SC | DIAGNOSTIC RADIOLOGY | 32 | 12 | $3,204 | $267 | premium | 13.5% | (803) 791-2365 |
| 93 | ST JUDE RADIOLOGY MEDICAL GROUP INC | FULLERTON | CA | DIAGNOSTIC RADIOLOGY | 61 | 12 | $3,660 | $305 | premium | 1.9% | 71499230001805 |
| 94 | SANTA BARBARA RADIOLOGY MEDICAL GROUP, INC. | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 10 | 12 | $3,538 | $295 | premium | 1.9% | (805) 569-7279 |
| 95 | AMERICAN RADIOLOGY CONSULTANTS PLLC | DALLAS | TX | DIAGNOSTIC RADIOLOGY | 121 | 12 | $3,636 | $303 | premium | 2.8% | (214) 820-3216 |
| 96 | RADIOLOGY CONSULTANTS PC | OKLAHOMA CITY | OK | DIAGNOSTIC RADIOLOGY | 23 | 12 | $3,516 | $293 | premium | 30.8% | (405) 384-5250 |
| 97 | JASON L HWANG MD INC | SONORA | CA | DIAGNOSTIC RADIOLOGY | 51 | 12 | $4,944 | $412 | premium | 1.9% | (855) 504-4544 |
| 98 | BREAST IMAGING RADIOLOGISTS A MEDICAL GROUP INC | LONG BEACH | CA | DIAGNOSTIC RADIOLOGY | 5 | 12 | $2,976 | $248 | premium | 1.9% | (844) 825-9300 |
| 99 | VANDERBILT UNIVERSITY MEDICAL CENTER | NASHVILLE | TN | NURSE PRACTITIONER | 3394 | 12 | $5,664 | $472 | premium | 10.0% | (615) 322-5000 |
| 100 | UNIVERSITY PROFESSIONAL SERVICES | PORTLAND | OR | PHYSICIAN ASSISTANT | 1717 | 12 | $6,860 | $572 | premium | 25.5% | (503) 494-8311 |
Showing the top 100 of 126 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 →