64643 — Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, each additional extremity
14,234 observed fee-for-service (50%) · ~14,423 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 | 64643 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 459 | $142,540 | $311 | premium | 83.3% | (732) 362-3663 |
| 2 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 422 | $219,018 | $519 | premium | 35.9% | — |
| 3 | REHABILITATION ASSOCIATES OF THE MAIN LINE, P.C. | MALVERN | PA | PHYSICAL MEDICINE AND REHABILITATION | 14 | 362 | $101,360 | $280 | premium | 23.7% | (484) 596-5254 |
| 4 | UT PHYSICIANS | HOUSTON | TX | NURSE PRACTITIONER | 1758 | 320 | $78,720 | $246 | premium | 24.2% | (713) 566-5000 |
| 5 | SANDEEP THAKKAR DO A PROFESSIONAL CORPORATION | IRVINE | CA | PHYSICIAN ASSISTANT | 4 | 310 | $54,250 | $175 | premium | 19.4% | — |
| 6 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 306 | $113,832 | $372 | premium | 30.4% | (617) 724-0287 |
| 7 | ST LUKES METHODIST HOSPITAL | CEDAR RAPIDS | IA | NURSE PRACTITIONER | 82 | 303 | $83,299 | $275 | premium | 52.9% | (319) 368-5757 |
| 8 | ALLINA HEALTH SYSTEM | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 3855 | 293 | $125,140 | $427 | premium | 28.3% | (612) 863-4000 |
| 9 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 273 | $235,326 | $862 | premium | 25.6% | (608) 287-2050 |
| 10 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 262 | $435,706 | $1,663 | premium | 17.6% | (212) 263-9700 |
| 11 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 255 | $93,840 | $368 | premium | 19.2% | (214) 633-5555 |
| 12 | NATIONAL HEALTH REHABILITATION LLC | TAMPA | MA | PHYSICAL MEDICINE AND REHABILITATION | 151 | 251 | $114,886 | $458 | premium | 24.9% | (201) 654-6397 |
| 13 | GOOD SHEPHERD REHABILITATION HOSPITAL | CENTER VALLEY | PA | PHYSICAL MEDICINE AND REHABILITATION | 21 | 244 | $67,588 | $277 | premium | 16.0% | (610) 776-3278 |
| 14 | CENTRAL DUPAGE PHYSICIAN GROUP | WHEATON | IL | PHYSICIAN ASSISTANT | 1097 | 243 | $69,741 | $287 | premium | 26.9% | (630) 933-4800 |
| 15 | GILLETTE CHILDRENS SPECIALTY HEALTHCARE | SAINT PAUL | MN | NURSE PRACTITIONER | 103 | 243 | $48,843 | $201 | premium | 23.5% | (651) 291-2848 |
| 16 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 208 | $153,920 | $740 | premium | 14.0% | (212) 305-8559 |
| 17 | OSU PHYSICAL MEDICINE AND REHABILITATION, LLC | COLUMBUS | OH | PHYSICAL MEDICINE AND REHABILITATION | 35 | 202 | $64,640 | $320 | premium | 17.2% | (614) 366-9211 |
| 18 | THE MEDICAL COLLEGE OF WISCONSIN INC | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 2137 | 186 | $364,188 | $1,958 | premium | 17.4% | (414) 955-4263 |
| 19 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 163 | $41,076 | $252 | premium | 69.4% | (501) 686-8000 |
| 20 | PHYSICAL MEDICINE AND REHAB MEDICAL SERVICE GROUP | SYRACUSE | NY | PHYSICAL MEDICINE AND REHABILITATION | 20 | 155 | $34,875 | $225 | premium | 10.4% | (315) 464-2296 |
| 21 | VIRGINIA MASON MEDICAL CENTER | SEATTLE | WA | PHYSICIAN ASSISTANT | 879 | 150 | $40,610 | $271 | premium | 49.2% | (206) 223-6600 |
| 22 | NORTH COUNTY NEUROLOGY ASSOCIATES MEDICAL GROUP | CARLSBAD | CA | NEUROLOGY | 44 | 150 | $29,048 | $194 | premium | 9.4% | (760) 631-3000 |
| 23 | STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER | JACKSON | MS | NURSE PRACTITIONER | 951 | 143 | $52,338 | $366 | premium | 37.7% | (601) 815-4775 |
| 24 | CORA HEALTH SERVICES INC | THE VILLAGES | FL | ORTHOPEDIC SURGERY | 1187 | 139 | $24,325 | $175 | premium | 17.8% | (352) 693-3378 |
| 25 | POUDRE VALLEY MEDICAL GROUP LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 2390 | 137 | $28,770 | $210 | premium | 52.7% | — |
| 26 | MAINEHEALTH | PORTLAND | ME | NURSE PRACTITIONER | 2574 | 134 | $21,452 | $160 | premium | 84.8% | (207) 885-9905 |
| 27 | UNMC PHYSICIANS | OMAHA | NE | PHYSICIAN ASSISTANT | 1514 | 133 | $38,410 | $289 | premium | 67.5% | (402) 559-4000 |
| 28 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 132 | $51,098 | $387 | premium | 14.6% | (847) 459-1160 |
| 29 | W DEAN LORENZ MD PC | FLORENCE | SC | PHYSICAL MEDICINE AND REHABILITATION | 2 | 128 | $25,600 | $200 | premium | 48.5% | (843) 661-4390 |
| 30 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 127 | $76,196 | $600 | premium | 7.9% | (650) 723-4000 |
| 31 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 126 | $15,484 | $123 | premium | 8.3% | (215) 662-2777 |
| 32 | MONTEFIORE MEDICAL CENTER | BRONX | NY | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 2796 | 121 | $112,347 | $928 | premium | 8.1% | (866) 633-8255 |
| 33 | SJHMC PHYSICIAN SERVICES | PHOENIX | AZ | NURSE PRACTITIONER | 690 | 119 | $30,940 | $260 | premium | 29.6% | (602) 406-6017 |
| 34 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 118 | $44,108 | $374 | premium | 24.8% | (314) 747-3000 |
| 35 | MEDICAL SERVICES RIC | CHICAGO | IL | PHYSICAL MEDICINE AND REHABILITATION | 93 | 115 | $45,043 | $392 | premium | 12.7% | (312) 238-1000 |
| 36 | UNIVERSITY OF LOUISVILLE PHYSICIANS INC | LOUISVILLE | KY | NURSE PRACTITIONER | 1442 | 106 | $23,426 | $221 | premium | 74.6% | (502) 629-2398 |
| 37 | IOWA ORTHOPAEDIC CENTER PC | DES MOINES | IA | PHYSICIAN ASSISTANT | 69 | 101 | $26,133 | $259 | premium | 17.6% | (515) 247-8400 |
| 38 | THE CURATORS OF THE UNIVERSITY OF MISSOURI | COLUMBIA | MO | PHYSICIAN ASSISTANT | 1116 | 100 | $22,300 | $223 | premium | 21.0% | (573) 882-2667 |
| 39 | MERCY CLINIC OKLAHOMA COMMUNITIES | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 642 | 98 | $21,854 | $223 | premium | 79.7% | (405) 254-9690 |
| 40 | CENTER FOR NEUROLOGICAL DISORDERS SC | MILWAUKEE | WI | PHYSICAL MEDICINE AND REHABILITATION | 7 | 97 | $46,344 | $478 | premium | 9.1% | (414) 769-4040 |
| 41 | SANFORD BISMARCK | BISMARCK | ND | NURSE PRACTITIONER | 563 | 94 | $10,120 | $108 | premium | 51.1% | (701) 323-8300 |
| 42 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 94 | $37,600 | $400 | premium | 6.3% | (212) 241-4812 |
| 43 | BEACON ORTHOPAEDICS AND SPORTS MEDICINE LTD | CINCINNATI | OH | PHYSICIAN ASSISTANT | 468 | 94 | $21,338 | $227 | premium | 8.0% | (513) 354-3700 |
| 44 | MISSISSIPPI METHODIST HOSPITAL REHABILITATION CENTER INC | JACKSON | MS | NURSE PRACTITIONER | 11 | 92 | $24,656 | $268 | premium | 24.3% | — |
| 45 | MISSOULA VALLEY PHYSICAL MEDICINE AND REHABILITATION PLLC | MISSOULA | MT | PHYSICAL MEDICINE AND REHABILITATION | 3 | 91 | $17,643 | $194 | premium | 64.5% | (406) 327-4308 |
| 46 | ASHEVILLE NEUROLOGY SPECIALISTS, PA` | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 7 | 91 | $22,750 | $250 | premium | 16.3% | 82821093009359 |
| 47 | UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT SAN ANTONIO | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 1326 | 91 | $24,185 | $266 | premium | 6.9% | (210) 450-7044 |
| 48 | REGENTS OF THE UNIVERSITY OF MICHIGAN | ANN ARBOR | MI | INTERNAL MEDICINE | 3330 | 90 | $26,754 | $297 | premium | 26.2% | (734) 763-5459 |
| 49 | MERCY CLINICS INC | DES MOINES | IA | NURSE PRACTITIONER | 435 | 89 | $19,402 | $218 | premium | 15.5% | (515) 461-9786 |
| 50 | ADVANCED PAIN CLINIC PA | KISSIMMEE | FL | INTERVENTIONAL PAIN MANAGEMENT | 2 | 88 | $26,400 | $300 | premium | 11.3% | (407) 935-9404 |
| 51 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 88 | $33,880 | $385 | premium | 65.2% | (205) 934-3460 |
| 52 | BANNER - UNIVERSITY PHYSICIAN SPECIALISTS LLC | PHOENIX | CO | PHYSICIAN ASSISTANT | 349 | 87 | $10,005 | $115 | premium | 33.5% | (602) 839-3927 |
| 53 | NUVANCE HEALTH MEDICAL PRACTICE CT INC | DANBURY | CT | PHYSICIAN ASSISTANT | 748 | 83 | $31,042 | $374 | premium | 11.6% | (203) 739-7118 |
| 54 | STONY BROOK ANAESTHESIOLOGY UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | ANESTHESIOLOGY | 87 | 81 | $54,180 | $669 | premium | 5.4% | (631) 444-2975 |
| 55 | UNIVERSITY OF UTAH SPECIALTY SERVICES | SALT LAKE CITY | UT | PHYSICAL MEDICINE AND REHABILITATION | 93 | 81 | $25,915 | $320 | premium | 36.7% | (801) 587-6336 |
| 56 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | DC | PHYSICIAN ASSISTANT | 3707 | 77 | $14,861 | $193 | premium | 42.8% | (202) 429-2401 |
| 57 | SINGING RIVER HEALTH SYSTEM | PASCAGOULA | MS | NURSE PRACTITIONER | 282 | 76 | $22,268 | $293 | premium | 20.1% | (228) 818-0563 |
| 58 | CHRISTIANA CARE HEALTH SERVICES INC | NEWARK | DE | PHYSICIAN ASSISTANT | 1537 | 74 | $15,290 | $207 | premium | 100.0% | — |
| 59 | MARY HITCHCOCK MEMORIAL HOSPITAL | LEBANON | NH | NURSE PRACTITIONER | 1270 | 73 | $13,828 | $189 | premium | 36.0% | (603) 650-5000 |
| 60 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 73 | $17,885 | $245 | premium | 33.0% | (801) 261-8346 |
| 61 | FRANCISCAN PHYSICIAN NETWORK | INDIANAPOLIS | IN | PHYSICIAN ASSISTANT | 1151 | 72 | $15,048 | $209 | premium | 31.9% | — |
| 62 | PHYSIOTHERAPY ASSOCIATES INC | SOUTH DENNIS | MA | ORTHOPEDIC SURGERY | 1373 | 71 | $28,400 | $400 | premium | 7.0% | (508) 385-4212 |
| 63 | MOUNTAIN VIEW HOSPITAL LLC | IDAHO FALLS | UT | PHYSICIAN ASSISTANT | 267 | 67 | $15,745 | $235 | premium | 30.3% | (208) 535-4343 |
| 64 | SWEDISH HEALTH SERVICES | SEATTLE | WA | PHYSICIAN ASSISTANT | 1033 | 66 | $18,480 | $280 | premium | 21.6% | — |
| 65 | THE DULUTH CLINIC LTD | DULUTH | MN | PHYSICIAN ASSISTANT | 1082 | 65 | $20,504 | $315 | premium | 6.3% | (218) 576-0680 |
| 66 | PHYSICIANS CLINIC INC | OMAHA | NE | PHYSICIAN ASSISTANT | 561 | 64 | $16,832 | $263 | premium | 32.5% | (402) 354-8163 |
| 67 | MARY FREE BED REHABILITATION HOSPITAL | GRAND RAPIDS | MI | PHYSICAL MEDICINE AND REHABILITATION | 128 | 62 | $22,072 | $356 | premium | 18.1% | (616) 242-0422 |
| 68 | CLEVELAND CLINIC | CLEVELAND | NY | PHYSICIAN ASSISTANT | 6828 | 62 | $32,178 | $519 | premium | 4.2% | — |
| 69 | OCHSNER CLINIC LLC | NEW ORLEANS | LA | NURSE PRACTITIONER | 2839 | 61 | $13,908 | $228 | premium | 67.0% | (504) 842-3000 |
| 70 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | NC | NURSE PRACTITIONER | 2120 | 61 | $18,483 | $303 | premium | 11.0% | (984) 215-5556 |
| 71 | SETON FAMILY OF DOCTORS | AUSTIN | TX | PHYSICIAN ASSISTANT | 804 | 60 | $8,400 | $140 | premium | 4.5% | (512) 324-7300 |
| 72 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | OH | NURSE PRACTITIONER | 1504 | 58 | $12,006 | $207 | premium | 4.9% | (513) 584-1000 |
| 73 | UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL | CHARLESTON | SC | PHYSICIAN ASSISTANT | 1692 | 56 | $20,417 | $365 | premium | 21.2% | (843) 792-1414 |
| 74 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 56 | $9,744 | $174 | premium | 6.2% | — |
| 75 | CLEVELAND CLINIC NEVADA | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 33 | 55 | $26,785 | $487 | premium | 71.4% | (702) 483-6000 |
| 76 | UNIVERSITY OF MARYLAND NEUROLOGY ASSOCIATES PA | BALTIMORE | MD | NEUROLOGY | 55 | 55 | $11,550 | $210 | premium | 26.2% | (410) 448-6383 |
| 77 | CEDARS-SINAI MEDICAL CENTER | WEST HOLLYWOOD | CA | NURSE PRACTITIONER | 802 | 55 | $20,141 | $366 | premium | 3.4% | (310) 423-3277 |
| 78 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 54 | $28,242 | $523 | premium | 3.6% | — |
| 79 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | NY | DIAGNOSTIC RADIOLOGY | 3532 | 54 | $20,088 | $372 | premium | 3.6% | (617) 724-0287 |
| 80 | ALBERT D. JANERICH, MD | WEST PITTSTON | PA | PHYSICAL MEDICINE AND REHABILITATION | 3 | 53 | $14,840 | $280 | premium | 3.5% | (570) 824-4111 |
| 81 | THE MILTON S HERSHEY MEDICAL CENTER PHYSICIANS GROUP | HERSHEY | PA | PHYSICIAN ASSISTANT | 1599 | 53 | $13,833 | $261 | premium | 3.5% | (717) 531-5638 |
| 82 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 53 | $21,630 | $408 | premium | 4.0% | — |
| 83 | LIFESPAN PHYSICIAN GROUP INC | PROVIDENCE | RI | PHYSICIAN ASSISTANT | 947 | 52 | $13,936 | $268 | premium | 74.3% | (401) 793-9172 |
| 84 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 51 | $11,985 | $235 | premium | 3.2% | — |
| 85 | SANFORD MEDICAL CENTER FARGO | FARGO | ND | NURSE PRACTITIONER | 1198 | 51 | $4,437 | $87 | premium | 27.7% | (701) 234-2000 |
| 86 | RADY CHILDREN'S HOSPITAL SAN DIEGO | SAN DIEGO | CA | PEDIATRIC MEDICINE | 147 | 51 | $17,799 | $349 | premium | 3.2% | (858) 576-1700 |
| 87 | IOWA PHYSICIANS CLINIC MEDICAL FOUNDATION | BETTENDORF | IA | NURSE PRACTITIONER | 1202 | 50 | $13,794 | $276 | premium | 8.7% | — |
| 88 | UNIVERSITY MEDICAL SERVICE ASSOCIATION INC | TAMPA | FL | NURSE PRACTITIONER | 814 | 50 | $14,600 | $292 | premium | 6.4% | — |
| 89 | HEARTLAND REGIONAL MEDICAL CENTER | SAINT JOSEPH | MO | NURSE PRACTITIONER | 387 | 50 | $3,700 | $74 | premium | 10.5% | (816) 271-6870 |
| 90 | EINSTEIN PRACTICE PLAN INC | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 740 | 50 | $10,500 | $210 | premium | 3.3% | (215) 456-8242 |
| 91 | GUNDERSEN LUTHERAN MEDICAL CENTER INC | LA CROSSE | WI | PHYSICIAN ASSISTANT | 901 | 49 | $11,942 | $244 | premium | 4.6% | (608) 783-7300 |
| 92 | SHEPHERD CENTER, INC. | ATLANTA | GA | PHYSICAL MEDICINE AND REHABILITATION | 49 | 49 | $24,516 | $500 | premium | 40.5% | (404) 352-2020 |
| 93 | NEUROLOGIC AND HEADACHE CLINIC | PALOS HEIGHTS | IL | NEUROLOGY | 2 | 48 | $36,000 | $750 | premium | 5.3% | (708) 361-4520 |
| 94 | ALBANY MEDICAL COLLEGE | ALBANY | NY | PHYSICIAN ASSISTANT | 1070 | 48 | $13,200 | $275 | premium | 3.2% | (518) 262-3277 |
| 95 | REHABILITATION AND ELECTRODIAGNOSTICS PA | TAMPA | FL | PHYSICAL MEDICINE AND REHABILITATION | 29 | 48 | $11,520 | $240 | premium | 6.2% | (813) 228-7696 |
| 96 | WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 1996 | 48 | $8,528 | $178 | premium | 100.0% | (304) 598-4865 |
| 97 | IU HEALTH MEDICAL GROUP, LLC | INDIANAPOLIS | IN | NURSE PRACTITIONER | 4250 | 47 | $11,703 | $249 | premium | 20.8% | (888) 484-3258 |
| 98 | IMC-REHABILITATION SPECIALISTS LLC | MOBILE | AL | PHYSICAL MEDICINE AND REHABILITATION | 5 | 47 | $6,580 | $140 | premium | 34.8% | (251) 435-6850 |
| 99 | BEACON MEDICAL GROUP INC | SOUTH BEND | IN | NURSE PRACTITIONER | 575 | 47 | $13,489 | $287 | premium | 20.8% | (574) 647-7275 |
| 100 | UMASS MEMORIAL MEDICAL GROUP INC | WORCESTER | MA | PHYSICIAN ASSISTANT | 2483 | 46 | $19,734 | $429 | premium | 4.6% | (508) 334-1000 |
Showing the top 100 of 172 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 →