72050 — X-ray of upper spine, 4-5 views
118,316 observed fee-for-service (50%) · ~117,914 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; 1 state 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 | 72050 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 1,158 | $187,301 | $162 | premium | 10.1% | (631) 225-7200 |
| 2 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 1,125 | $171,571 | $153 | premium | 12.8% | (888) 972-9700 |
| 3 | LARRY K. BROADWELL, M.D., A MEDICAL CORPORATION | SHREVEPORT | LA | RHEUMATOLOGY | 10 | 1,111 | $122,250 | $110 | premium | 18.6% | (318) 221-0399 |
| 4 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 991 | $150,153 | $152 | premium | 7.8% | — |
| 5 | ORTHOVIRGINIA INC | NORTH CHESTERFIELD | VA | PHYSICIAN ASSISTANT | 567 | 964 | $163,874 | $170 | premium | 10.2% | — |
| 6 | ORTHOSC LLC | MYRTLE BEACH | SC | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 113 | 945 | $99,289 | $105 | premium | 14.2% | (843) 491-4937 |
| 7 | ILLINOIS BONE AND JOINT INSTITUTE, LLC | BANNOCKBURN | IL | ORTHOPEDIC SURGERY | 595 | 882 | $174,581 | $198 | premium | 7.0% | — |
| 8 | ORTHOLONESTAR PLLC | DALLAS | TX | PHYSICIAN ASSISTANT | 407 | 780 | $122,460 | $157 | premium | 5.2% | (214) 220-2468 |
| 9 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 765 | $69,496 | $91 | premium | 6.0% | — |
| 10 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 753 | $140,109 | $186 | premium | 3.2% | (916) 681-8852 |
| 11 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 741 | $117,854 | $159 | premium | 3.1% | (916) 983-7476 |
| 12 | ST PAUL PLACE SPECIALISTS, INC. | BALTIMORE | MD | PHYSICIAN ASSISTANT | 337 | 685 | $58,810 | $86 | premium | 7.8% | (410) 663-8100 |
| 13 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 674 | $98,061 | $145 | premium | 7.7% | (888) 601-0943 |
| 14 | ORTHONJ LLC | MANASQUAN | NJ | PHYSICIAN ASSISTANT | 300 | 672 | $159,936 | $238 | premium | 7.6% | (732) 974-0404 |
| 15 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 646 | $190,566 | $295 | premium | 2.7% | (858) 455-9100 |
| 16 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 626 | $122,600 | $196 | premium | 10.6% | (480) 753-6161 |
| 17 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 610 | $128,177 | $210 | premium | 5.3% | (212) 263-9700 |
| 18 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 605 | $48,799 | $81 | premium | 42.6% | (801) 261-8346 |
| 19 | ORTHOPEDIC SPECIALISTS OF NORTH AMERICA PLLC | SCOTTSDALE | AZ | ORTHOPEDIC SURGERY | 308 | 604 | $90,570 | $150 | premium | 10.2% | (602) 385-2115 |
| 20 | ORTHOMIDWEST, PLLC | CHICAGO | IL | PHYSICIAN ASSISTANT | 542 | 599 | $93,541 | $156 | premium | 4.7% | (877) 632-6637 |
| 21 | RADIOLOGY ASSOCIATES OF NORTH TEXAS PA | FORT WORTH | TX | DIAGNOSTIC RADIOLOGY | 340 | 592 | $40,655 | $69 | premium | 3.9% | (817) 321-0470 |
| 22 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 562 | $50,941 | $91 | premium | 8.9% | (508) 334-1000 |
| 23 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 551 | $112,592 | $204 | premium | 2.3% | (310) 423-0674 |
| 24 | HH HEALTH SYSTEM - THE ORTHOPAEDIC CENTER LLC | HUNTSVILLE | AL | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 175 | 549 | $79,605 | $145 | premium | 13.0% | (256) 539-2728 |
| 25 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 534 | $144,568 | $271 | premium | 18.8% | (507) 284-2511 |
| 26 | ORTHOPAEDIC SPECIALTY INSTITUTE MEDICAL GROUP OF ORANGE COUNTY | ORANGE | CA | PHYSICIAN ASSISTANT | 58 | 532 | $90,440 | $170 | premium | 2.2% | (714) 634-4567 |
| 27 | THE NEW JERSEY IMAGING NETWORK, LLC | CEDAR KNOLLS | NJ | DIAGNOSTIC RADIOLOGY | 71 | 521 | $69,437 | $133 | premium | 5.9% | (973) 695-1290 |
| 28 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 520 | $28,600 | $55 | premium | 4.8% | (614) 293-8315 |
| 29 | RIVERSIDE RADIOLOGY AND INTERVENTIONAL ASSOCIATES INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 243 | 520 | $35,871 | $69 | premium | 4.8% | (614) 566-5600 |
| 30 | EMERGEORTHO PA | DURHAM | NC | PHYSICIAN ASSISTANT | 725 | 515 | $67,866 | $132 | premium | 6.6% | (919) 544-7270 |
| 31 | OLYMPIA ORTHOPAEDIC ASSOCIATES PLLC | OLYMPIA | WA | PHYSICIAN ASSISTANT | 109 | 514 | $63,609 | $124 | premium | 12.2% | — |
| 32 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 503 | $78,468 | $156 | premium | 2.7% | (352) 787-5858 |
| 33 | TALLAHASSEE ORTHOPEDIC CLINIC III PL | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 542 | 492 | $130,815 | $266 | premium | 2.7% | (850) 877-8174 |
| 34 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 491 | $73,948 | $151 | premium | 7.4% | (803) 749-5101 |
| 35 | TEXAS HEALTH BACK CARE | ROCKWALL | TX | PHYSICAL MEDICINE AND REHABILITATION | 47 | 477 | $99,693 | $209 | premium | 3.2% | (817) 442-9300 |
| 36 | NORTH FLORIDA SURGEONS PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 331 | 467 | $72,847 | $156 | premium | 2.5% | (904) 396-1725 |
| 37 | TRUE NORTH MEDICAL GROUP PC | ROCKVILLE CENTRE | NY | PHYSICIAN ASSISTANT | 182 | 456 | $234,914 | $515 | premium | 4.0% | (516) 536-2800 |
| 38 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | ORTHOPEDIC SURGERY | 136 | 455 | $120,528 | $265 | premium | 1.9% | (310) 443-8999 |
| 39 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 446 | $47,950 | $108 | premium | 2.4% | (941) 255-3535 |
| 40 | NOVANT HEALTH SOUTHEASTERN SPINE INSTITUTE LLC | MT PLEASANT | SC | PHYSICIAN ASSISTANT | 29 | 434 | $61,194 | $141 | premium | 6.5% | — |
| 41 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 429 | $28,829 | $67 | premium | 19.1% | (501) 686-8000 |
| 42 | SOUTH FLORIDA ORTHOPAEDICS AND SPORTS MEDICINE, PA | STUART | FL | PHYSICIAN ASSISTANT | 71 | 411 | $80,132 | $195 | premium | 2.2% | — |
| 43 | HUNTSVILLE HOSPITAL SPINE AND NEURO CENTER | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 32 | 407 | $34,924 | $86 | premium | 9.6% | (256) 533-1600 |
| 44 | RADIOLOGY INC | HUNTINGTON | WV | DIAGNOSTIC RADIOLOGY | 28 | 405 | $27,210 | $67 | premium | 27.1% | (304) 526-1140 |
| 45 | SPORTS MEDICINE NORTH ORTHOPAEDIC SURGERY, INC. | PEABODY | MA | PHYSICIAN ASSISTANT | 87 | 404 | $59,505 | $147 | premium | 6.4% | (978) 818-6350 |
| 46 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 399 | $28,168 | $71 | premium | 2.2% | (305) 689-5437 |
| 47 | SPORTSMED ORTHOPAEDIC SPECIALISTS | HUNTSVILLE | AL | PHYSICIAN ASSISTANT | 86 | 396 | $45,540 | $115 | premium | 9.3% | — |
| 48 | HOUSTON RADIOLOGY ASSOCIATED | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 103 | 395 | $43,115 | $109 | premium | 2.6% | (281) 206-9020 |
| 49 | NEBRASKA SPINE CENTER, LLP | OMAHA | NE | PHYSICIAN ASSISTANT | 35 | 393 | $76,095 | $194 | premium | 19.8% | (402) 496-5517 |
| 50 | PATIENT FIRST MARYLAND MEDICAL GROUP PLLC | BALTIMORE | MD | PHYSICIAN ASSISTANT | 262 | 383 | $52,767 | $138 | premium | 4.4% | (443) 461-1997 |
| 51 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 382 | $61,696 | $162 | premium | 3.0% | (847) 459-1160 |
| 52 | EASTERN RADIOLOGISTS INC | GREENVILLE | NC | DIAGNOSTIC RADIOLOGY | 93 | 376 | $23,218 | $62 | premium | 4.8% | (252) 752-5000 |
| 53 | MEDICAL CENTER RADIOLOGISTS INC | NORFOLK | VA | DIAGNOSTIC RADIOLOGY | 123 | 353 | $16,944 | $48 | premium | 3.7% | (757) 466-6870 |
| 54 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 353 | $41,997 | $119 | premium | 1.5% | (800) 926-8273 |
| 55 | THE SAN ANTONIO ORTHOPAEDIC GROUP LLP | SAN ANTONIO | TX | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 138 | 352 | $46,112 | $131 | premium | 2.3% | (210) 804-5400 |
| 56 | GOLDEN STATE ORTHOPEDICS AND SPINE | WALNUT CREEK | CA | ORTHOPEDIC SURGERY | 190 | 334 | $70,474 | $211 | premium | 1.4% | (925) 939-8585 |
| 57 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 333 | $121,689 | $365 | premium | 1.8% | (904) 953-2000 |
| 58 | PENINSULA ORTHOPAEDIC ASSOC PA | SALISBURY | MD | PHYSICIAN ASSISTANT | 57 | 327 | $35,464 | $108 | premium | 3.7% | (410) 749-4154 |
| 59 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 325 | $25,438 | $78 | premium | 5.1% | (617) 724-0287 |
| 60 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 323 | $35,959 | $111 | premium | 13.9% | (319) 678-8201 |
| 61 | ARLINGTON NEUROSURGEONS, PLLC | PLANO | TX | PHYSICIAN ASSISTANT | 46 | 318 | $50,555 | $159 | premium | 2.1% | (972) 596-6800 |
| 62 | LOUISIANA ORTHOPAEDIC SPECIALISTS LLC | LAFAYETTE | LA | PHYSICIAN ASSISTANT | 68 | 318 | $64,556 | $203 | premium | 5.3% | (337) 235-8007 |
| 63 | COMMONWEALTH RADIOLOGY PC | RICHMOND | VA | DIAGNOSTIC RADIOLOGY | 49 | 313 | $12,520 | $40 | premium | 3.3% | (804) 288-8327 |
| 64 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 310 | $70,557 | $228 | premium | 4.0% | (919) 684-8111 |
| 65 | CHATTANOOGA ORTHOPAEDIC GROUP, PC | CHATTANOOGA | TN | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 72 | 309 | $43,569 | $141 | premium | 5.6% | (423) 624-2696 |
| 66 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 307 | $19,341 | $63 | premium | 5.1% | (734) 763-5459 |
| 67 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | OH | NURSE PRACTITIONER | 2232 | 305 | $13,875 | $45 | premium | 2.8% | — |
| 68 | DELAWARE RADIOLOGY ASSOCIATES PA | NEWARK | DE | DIAGNOSTIC RADIOLOGY | 56 | 305 | $44,926 | $147 | premium | 21.8% | (302) 737-5990 |
| 69 | REGIONAL MEDICAL IMAGING PC | FLINT | MI | DIAGNOSTIC RADIOLOGY | 22 | 304 | $19,596 | $64 | premium | 5.0% | (810) 732-8870 |
| 70 | TOLEDO RADIOLOGICAL ASSOCIATES INC | COLDWATER | OH | DIAGNOSTIC RADIOLOGY | 51 | 304 | $13,854 | $46 | premium | 2.8% | (517) 279-5400 |
| 71 | NEUROSURGICAL ASSOCIATES PC | HENRICO | VA | NEUROSURGERY | 16 | 303 | $48,480 | $160 | premium | 3.2% | (804) 288-8204 |
| 72 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 300 | $70,740 | $236 | premium | 5.1% | (520) 290-4842 |
| 73 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | VA | DIAGNOSTIC RADIOLOGY | 65 | 296 | $15,392 | $52 | premium | 3.1% | (757) 594-3900 |
| 74 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 296 | $26,546 | $90 | premium | 1.2% | (760) 773-1251 |
| 75 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 295 | $35,015 | $119 | premium | 30.0% | (401) 626-3900 |
| 76 | WEST COUNTY RADIOLOGICAL GROUP INC | SAINT LOUIS | MO | DIAGNOSTIC RADIOLOGY | 104 | 294 | $18,522 | $63 | premium | 5.7% | (314) 941-5600 |
| 77 | BIENVILLE ORTHOPAEDIC SPECIALISTS, LLC | VANCLEAVE | MS | ORTHOPEDIC SURGERY | 42 | 294 | $47,922 | $163 | premium | 14.1% | (228) 230-2663 |
| 78 | NORTHWEST RADIOLOGY ASSOCIATES SC | ARLINGTON HEIGHTS | IL | DIAGNOSTIC RADIOLOGY | 21 | 290 | $15,080 | $52 | premium | 2.3% | (847) 618-1000 |
| 79 | FORT WORTH BRAIN AND SPINE INSTITUTE, LLP | FORT WORTH | TX | NEUROSURGERY | 11 | 289 | $34,102 | $118 | premium | 1.9% | (817) 878-5333 |
| 80 | RADIOLOGY INC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 57 | 285 | $16,815 | $59 | premium | 2.6% | (614) 234-5100 |
| 81 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 283 | $12,452 | $44 | premium | 2.2% | (312) 563-2875 |
| 82 | SARAH BUSH LINCOLN HEALTH CENTER | MATTOON | IL | NURSE PRACTITIONER | 405 | 283 | $88,632 | $313 | premium | 2.2% | — |
| 83 | SPINE INSTITUTE OF LOUISIANA LLC | SHREVEPORT | LA | NURSE PRACTITIONER | 13 | 281 | $65,754 | $234 | premium | 4.7% | (318) 629-5560 |
| 84 | COLUMBUS RADIOLOGY CORP | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 288 | 279 | $61,380 | $220 | premium | 2.6% | (614) 228-7231 |
| 85 | TENNESSEE ORTHOPAEDIC ALLIANCE PA | NASHVILLE | TN | PHYSICIAN ASSISTANT | 352 | 279 | $42,129 | $151 | premium | 5.0% | (615) 329-6600 |
| 86 | RADIOLOGY CONSULTANTS OF TULSA, INC. | TULSA | OK | DIAGNOSTIC RADIOLOGY | 34 | 268 | $10,519 | $39 | premium | 9.2% | (918) 743-8838 |
| 87 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 267 | $8,811 | $33 | premium | 2.4% | — |
| 88 | MISSISSIPPI SPORTS MEDICINE AND ORTHOPAEDIC CENTER | JACKSON | MS | ORTHOPEDIC SURGERY | 75 | 266 | $51,870 | $195 | premium | 12.7% | (601) 354-4488 |
| 89 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 264 | $42,504 | $161 | premium | 2.1% | (630) 469-9200 |
| 90 | ADVANCED RADIOLOGY SERVICES PC | GRAND RAPIDS | MI | DIAGNOSTIC RADIOLOGY | 249 | 264 | $13,932 | $53 | premium | 4.4% | (616) 363-7272 |
| 91 | UPSTATE ORTHOPEDICS, LLP | CAMILLUS | NY | ORTHOPEDIC SURGERY | 34 | 263 | $18,540 | $70 | premium | 2.3% | (315) 551-6000 |
| 92 | ROTHMAN ORTHOPAEDICS OF NEW JERSEY, LLC | MARLTON | NJ | PHYSICIAN ASSISTANT | 176 | 256 | $73,984 | $289 | premium | 2.9% | (800) 321-9999 |
| 93 | FLORIDA SPINE ASSOCIATES LLC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 20 | 255 | $139,562 | $547 | premium | 1.4% | (561) 495-9511 |
| 94 | RADIOLOGICAL PHYSICIAN ASSOCIATES INC | BRIDGEPORT | WV | DIAGNOSTIC RADIOLOGY | 28 | 255 | $17,340 | $68 | premium | 17.1% | (681) 342-1000 |
| 95 | ORTHOPEDIC ONE, INC. | UPPER ARLINGTON | OH | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 280 | 254 | $39,370 | $155 | premium | 2.3% | (614) 827-8700 |
| 96 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 252 | $33,596 | $133 | premium | 9.4% | (702) 732-6000 |
| 97 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 248 | $69,837 | $282 | premium | 1.3% | (954) 659-5000 |
| 98 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 247 | $11,280 | $46 | premium | 5.9% | (206) 364-0500 |
| 99 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 246 | $54,897 | $223 | premium | 4.2% | (800) 603-0558 |
| 100 | GUTHRIE MEDICAL GROUP PC | SAYRE | PA | PHYSICIAN ASSISTANT | 804 | 243 | $34,592 | $142 | premium | 2.2% | (570) 888-5858 |
Showing the top 100 of 1,247 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 →