82784 — Gammaglobulin (immune system protein) measurement
497,398 observed fee-for-service (48%) · ~528,726 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 | 82784 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | FORT MYERS | FL | HEMATOLOGY/ONCOLOGY | 437 | 110,626 | $3,764,119 | $34 | premium | 42.5% | (239) 561-9622 |
| 2 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 54,395 | $2,416,005 | $44 | premium | 36.2% | (631) 751-3000 |
| 3 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 37,808 | $2,117,140 | $56 | premium | 22.2% | — |
| 4 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | MD | HEMATOLOGY/ONCOLOGY | 99 | 24,555 | $1,325,970 | $54 | premium | 57.6% | (301) 982-9800 |
| 5 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | FL | HEMATOLOGY/ONCOLOGY | 333 | 20,643 | $578,004 | $28 | premium | 7.9% | (260) 484-8830 |
| 6 | VIRGINIA ONCOLOGY ASSOCIATES | NORFOLK | VA | PHYSICIAN ASSISTANT | 123 | 18,342 | $990,144 | $54 | premium | 40.0% | — |
| 7 | TENNESSEE ONCOLOGY PLLC | NASHVILLE | TN | HEMATOLOGY/ONCOLOGY | 360 | 17,048 | $274,867 | $16 | premium | 33.5% | (615) 385-3751 |
| 8 | ROCKY MOUNTAIN CANCER CENTERS LLP | COLORADO SPRINGS | CO | NURSE PRACTITIONER | 129 | 12,179 | $657,666 | $54 | premium | 39.3% | (719) 577-2555 |
| 9 | ALLISON CURTIS KINGSLEY MEOZ MICHAEL AND SANCHEZ PC | LAS VEGAS | NV | NURSE PRACTITIONER | 71 | 11,758 | $634,932 | $54 | premium | 54.8% | (702) 952-2140 |
| 10 | VIRGINIA CANCER SPECIALISTS, P.C. | FAIRFAX | VA | HEMATOLOGY/ONCOLOGY | 76 | 10,665 | $575,910 | $54 | premium | 23.3% | (703) 280-5390 |
| 11 | ONCOLOGY SPECIALTIES, P.C. | HUNTSVILLE | AL | NURSE PRACTITIONER | 93 | 9,150 | $320,250 | $35 | premium | 14.0% | (256) 705-4224 |
| 12 | NEW YORK ONCOLOGY HEMATOLOGY PC | ALBANY | NY | NURSE PRACTITIONER | 83 | 9,027 | $469,404 | $52 | premium | 6.0% | (518) 262-6696 |
| 13 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 8,417 | $176,757 | $21 | premium | 58.0% | — |
| 14 | BIRMINGHAM HEMATOLOGY ONCOLOGY ASSOC LLC | BIRMINGHAM | AL | MEDICAL ONCOLOGY | 31 | 6,494 | $220,796 | $34 | premium | 10.0% | (205) 592-5077 |
| 15 | CENTER FOR RHEUMATOLOGY MEDICAL CORPORATION | LOS ANGELES | CA | RHEUMATOLOGY | 9 | 6,023 | $210,805 | $35 | premium | 2.6% | (310) 659-7878 |
| 16 | TENNESSEE CANCER SPECIALISTS PLLC | KNOXVILLE | TN | NURSE PRACTITIONER | 65 | 5,677 | $372,708 | $66 | premium | 11.2% | (865) 934-5800 |
| 17 | ONCOLOGY-HEMATOLOGY ASSOCIATES OF CENTRAL ILLINOIS P C | PEORIA | IL | NURSE PRACTITIONER | 62 | 5,612 | $478,419 | $85 | premium | 13.4% | (309) 243-3000 |
| 18 | MINNESOTA ONCOLOGY HEMATOLOGY PA | EDINA | MN | PHYSICIAN ASSISTANT | 135 | 5,558 | $300,132 | $54 | premium | 12.4% | (952) 928-2900 |
| 19 | HIGHLANDS ONCOLOGY GROUP PA | FAYETTEVILLE | AR | NURSE PRACTITIONER | 79 | 5,368 | $145,335 | $27 | premium | 37.0% | (479) 361-2585 |
| 20 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 5,278 | $171,799 | $33 | premium | 10.4% | (901) 683-0055 |
| 21 | CANCER SPECIALISTS LLC | JACKSONVILLE | FL | HEMATOLOGY/ONCOLOGY | 46 | 5,189 | $117,371 | $23 | premium | 2.0% | (904) 516-3737 |
| 22 | HEMATOLOGY-ONCOLOGY ASSOCIATES OF CNY, PC | EAST SYRACUSE | NY | NURSE PRACTITIONER | 61 | 4,773 | $128,871 | $27 | premium | 3.2% | (315) 472-7504 |
| 23 | NORTHWEST ONCOLOGY AND HEMATOLOGY SC | ROLLING MEADOWS | IL | HEMATOLOGY/ONCOLOGY | 22 | 4,656 | $186,240 | $40 | premium | 11.1% | (847) 870-4100 |
| 24 | CANCER CARE SPECIALISTS OF CENTRAL ILLINOIS SC | DECATUR | IL | HEMATOLOGY/ONCOLOGY | 30 | 4,296 | $352,121 | $82 | premium | 10.3% | (217) 876-4700 |
| 25 | UNIVERSITY CANCER AND BLOOD CENTER LLC | ATHENS | GA | NURSE PRACTITIONER | 56 | 4,234 | $170,122 | $40 | premium | 11.7% | (706) 353-2990 |
| 26 | OMID S. SHAYE, M.D., A MEDICAL CORPORATION | WEST HILLS | CA | HEMATOLOGY/ONCOLOGY | 3 | 4,196 | $78,046 | $19 | premium | 1.8% | (818) 346-1773 |
| 27 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 3,847 | $115,410 | $30 | premium | 35.5% | (319) 678-8201 |
| 28 | ONCOLOGY AND HEMATOLOGY ASSOCIATES OF SOUTHWEST VIRGINIA INC | ROANOKE | VA | NURSE PRACTITIONER | 52 | 3,795 | $204,930 | $54 | premium | 8.3% | (540) 982-0237 |
| 29 | INLAND RHEUMATOLOGY AND OSTEOPOROSIS MEDICAL GROUP INC | UPLAND | CA | RHEUMATOLOGY | 4 | 3,283 | $49,245 | $15 | premium | 1.4% | (909) 982-0099 |
| 30 | ONCOLOGY HEMATOLOGY CARE INC | CINCINNATI | OH | NURSE PRACTITIONER | 66 | 2,946 | $159,084 | $54 | premium | 4.3% | (513) 751-2273 |
| 31 | NORTHWEST MEDICAL SPECIALTIES PLLC | TACOMA | WA | HEMATOLOGY/ONCOLOGY | 39 | 2,943 | $43,620 | $15 | premium | 8.0% | (253) 428-8700 |
| 32 | CANCER AND HEMATOLOGY CENTERS OF WESTERN MI, P.C. | GRAND RAPIDS | MI | HEMATOLOGY/ONCOLOGY | 112 | 2,793 | $88,343 | $32 | premium | 18.7% | (616) 954-9800 |
| 33 | COASTAL CANCER CENTER LLC | MYRTLE BEACH | SC | RADIATION ONCOLOGY | 22 | 2,604 | $440,076 | $169 | premium | 31.3% | (843) 449-9415 |
| 34 | NORTHWEST CANCER CENTERS PC | DYER | IN | HEMATOLOGY/ONCOLOGY | 26 | 2,514 | $135,756 | $54 | premium | 31.8% | (812) 220-4476 |
| 35 | SOUTH CAROLINA ONCOLOGY ASSOC PA | COLUMBIA | SC | HEMATOLOGY/ONCOLOGY | 18 | 2,492 | $99,680 | $40 | premium | 29.9% | (803) 461-3000 |
| 36 | JACKSON ONCOLOGY ASSOCIATES | JACKSON | MS | HEMATOLOGY/ONCOLOGY | 11 | 2,296 | $149,240 | $65 | premium | 79.3% | (601) 974-5600 |
| 37 | NORTHWEST CANCER SPECIALISTS PC | PORTLAND | OR | PHYSICIAN ASSISTANT | 68 | 2,104 | $109,408 | $52 | premium | 27.1% | (503) 280-1223 |
| 38 | SOUTHERN ONCOLOGY SPECIALISTS PLLC | HUNTERSVILLE | NC | PHYSICIAN ASSISTANT | 13 | 1,993 | $66,227 | $33 | premium | 1.1% | (704) 947-5005 |
| 39 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 1,925 | $73,084 | $38 | premium | 0.6% | (908) 273-4300 |
| 40 | MIDWEST REGIONAL ALLERGY, ASTHMA, ARTHRITIS AND OSTEOPOROSIS CENTER | JOPLIN | MO | NURSE PRACTITIONER | 2 | 1,859 | $196,040 | $105 | premium | 53.8% | (417) 624-0050 |
| 41 | RHEUMATOLOGY CONSULTANTS, LLP | HEWLETT | NY | RHEUMATOLOGY | 10 | 1,749 | $49,056 | $28 | premium | 1.2% | (516) 295-4481 |
| 42 | UTAH CANCER SPECIALISTS PC | SALT LAKE CITY | UT | MEDICAL ONCOLOGY | 48 | 1,740 | $69,600 | $40 | premium | 43.4% | (385) 282-2125 |
| 43 | PHYSICIANS CLINIC OF IOWA PC | CEDAR RAPIDS | IA | NURSE PRACTITIONER | 132 | 1,594 | $54,196 | $34 | premium | 14.7% | (319) 247-3010 |
| 44 | CALIFORNIA CANCER ASSOCIATES FOR RESEARCH AND EXCELLENCE INC | FRESNO | CA | HEMATOLOGY/ONCOLOGY | 62 | 1,468 | $35,232 | $24 | premium | 0.6% | (559) 326-1222 |
| 45 | MID-ILLINOIS HEMATOLOGY ONCOLOGY ASSOCIATES LTD | NORMAL | IL | HEMATOLOGY/ONCOLOGY | 4 | 1,434 | $43,020 | $30 | premium | 3.4% | (309) 452-9701 |
| 46 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 1,386 | $84,137 | $61 | premium | 2.0% | — |
| 47 | MAINE CENTER FOR CANCER MEDICINE AND BLOOD DISORDERS PA | WESTBROOK | ME | HEMATOLOGY/ONCOLOGY | 69 | 1,239 | $23,565 | $19 | premium | 43.8% | (207) 303-3300 |
| 48 | PHYSICIANS EAST PA | GREENVILLE | NC | NURSE PRACTITIONER | 104 | 1,234 | $51,828 | $42 | premium | 0.7% | (252) 355-4357 |
| 49 | VIRGINIA ONCOLOGY ASSOCIATES | NORFOLK | NC | PHYSICIAN ASSISTANT | 123 | 1,197 | $64,638 | $54 | premium | 0.7% | — |
| 50 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 1,197 | $38,911 | $33 | premium | 0.5% | (310) 423-0674 |
| 51 | SOUTH TEXAS ONCOLOGY AND HEMATOLOGY, PLLC | SAN ANTONIO | TX | HEMATOLOGY/ONCOLOGY | 39 | 1,091 | $30,439 | $28 | premium | 0.6% | (210) 593-5700 |
| 52 | ATRIUS HEALTH INC | BOSTON | MA | NURSE PRACTITIONER | 1196 | 944 | $35,872 | $38 | premium | 3.0% | (617) 421-1000 |
| 53 | R.S. VENUTURUPALLI, M.D. INC | BEVERLY HILLS | CA | RHEUMATOLOGY | 7 | 912 | $29,366 | $32 | premium | 0.4% | 3106520010120 |
| 54 | WEST SUBURBAN CTR FOR ARTHRITIS | WAUKESHA | WI | RHEUMATOLOGY | 5 | 866 | $47,630 | $55 | premium | 4.9% | (262) 785-0777 |
| 55 | HUDSON VALLEY HEALTH GROUP, LLP | NEW WINDSOR | NY | HEMATOLOGY/ONCOLOGY | 3 | 857 | $19,711 | $23 | premium | 0.6% | (845) 565-9800 |
| 56 | REVERE HEALTH PC | PROVO | UT | PHYSICIAN ASSISTANT | 410 | 840 | $13,440 | $16 | premium | 20.9% | — |
| 57 | MASOUD KHORSAND- SAHBAIE MD P A | ROSWELL | NM | HEMATOLOGY/ONCOLOGY | 18 | 814 | $8,423 | $10 | premium | 14.9% | (575) 627-9500 |
| 58 | SOUTHERN CANCER CENTER PC | MOBILE | AL | MEDICAL ONCOLOGY | 25 | 795 | $42,930 | $54 | premium | 1.2% | (251) 625-6896 |
| 59 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NJ | NURSE PRACTITIONER | 990 | 763 | $28,994 | $38 | premium | 0.3% | — |
| 60 | CAPITAL DIGESTIVE CARE LLC | WASHINGTON | MD | GASTROENTEROLOGY | 238 | 740 | $15,784 | $21 | premium | 1.7% | (202) 296-3449 |
| 61 | SYNERGY HEMATOLOGY ONCOLOGY MEDICAL ASSOCIATES INC | WEST HOLLYWOOD | CA | INTERNAL MEDICINE | 8 | 739 | $14,780 | $20 | premium | 0.3% | (323) 525-1111 |
| 62 | HARBIN CLINIC LLC | ROME | GA | NURSE PRACTITIONER | 252 | 729 | $29,160 | $40 | premium | 2.0% | (762) 235-3340 |
| 63 | NORTHWEST CANCER SPECIALISTS PC | PORTLAND | WA | PHYSICIAN ASSISTANT | 68 | 717 | $37,284 | $52 | premium | 2.0% | (503) 280-1223 |
| 64 | ONCOLOGY ASSOCIATES OF OREGON P C | EUGENE | OR | PHYSICIAN ASSISTANT | 47 | 701 | $37,854 | $54 | premium | 9.0% | (541) 683-5001 |
| 65 | NAUSHIN SIDDIQUI PHYSICIAN PC | EAST MEADOW | NY | INTERNAL MEDICINE | 2 | 677 | $13,540 | $20 | premium | 0.5% | (516) 481-2000 |
| 66 | KANSAS CITY PHYSICIAN PARTNERS INC | KANSAS CITY | MO | RHEUMATOLOGY | 16 | 646 | $7,752 | $12 | premium | 18.7% | (913) 258-2116 |
| 67 | EASTERN CONNECTICUT HEMATOLOGY AND ONCOLOGY ASSOCIATES PC | NORWICH | CT | NURSE PRACTITIONER | 13 | 635 | $17,780 | $28 | premium | 39.8% | (860) 886-8362 |
| 68 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | MO | NURSE PRACTITIONER | 462 | 634 | $28,620 | $45 | premium | 18.3% | (631) 751-3000 |
| 69 | DESERT HEMATOLOGY-ONCOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | HEMATOLOGY/ONCOLOGY | 10 | 609 | $14,583 | $24 | premium | 0.3% | (760) 568-3613 |
| 70 | BLOOD AND CANCER CENTER INC | CANFIELD | OH | HEMATOLOGY/ONCOLOGY | 4 | 606 | $21,780 | $36 | premium | 0.9% | (330) 533-3040 |
| 71 | NEVADA ONCOLOGY SPECIALISTS TOY GOODMAN SAMLOWSKI PC | LAS VEGAS | NV | HEMATOLOGY/ONCOLOGY | 2 | 602 | $32,508 | $54 | premium | 2.8% | (702) 473-1757 |
| 72 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | VA | HEMATOLOGY/ONCOLOGY | 99 | 585 | $31,590 | $54 | premium | 1.3% | (301) 982-9800 |
| 73 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 579 | $30,108 | $52 | premium | 0.2% | — |
| 74 | WEST CENTRAL PATHOLOGY SPECIALISTS SC | QUINCY | IL | PATHOLOGY | 4 | 575 | $149,365 | $260 | premium | 1.4% | 21722384006209 |
| 75 | OKLAHOMA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | TULSA | OK | NURSE PRACTITIONER | 47 | 572 | $18,304 | $32 | premium | 4.7% | (918) 505-3200 |
| 76 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | INTERNAL MEDICINE | 1424 | 571 | $34,940 | $61 | premium | 0.2% | (310) 825-7922 |
| 77 | EAST COAST MEDICAL ASSOCIATES, INC. | BOCA RATON | FL | ENDOCRINOLOGY | 6 | 559 | $11,225 | $20 | premium | 0.2% | (561) 391-1085 |
| 78 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | GA | HEMATOLOGY/ONCOLOGY | 333 | 555 | $26,384 | $48 | premium | 1.5% | (260) 484-8830 |
| 79 | GRAVES GILBERT CLINIC PLLC | BOWLING GREEN | KY | NURSE PRACTITIONER | 221 | 493 | $13,554 | $27 | premium | 11.3% | (270) 781-4043 |
| 80 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 480 | $23,040 | $48 | premium | 1.1% | (630) 469-9200 |
| 81 | RONALD C FAGAN MD PC | FARMINGDALE | NY | INTERNAL MEDICINE | 4 | 456 | $9,120 | $20 | premium | 0.3% | (516) 752-7000 |
| 82 | SHEBOYGAN PHYSICIANS GROUP S.C. | SHEBOYGAN | WI | NURSE PRACTITIONER | 15 | 448 | $45,718 | $102 | premium | 2.5% | (920) 452-6000 |
| 83 | NORTHWEST MEDICAL SPECIALTIES PLLC | TACOMA | NV | HEMATOLOGY/ONCOLOGY | 39 | 417 | $6,255 | $15 | premium | 1.9% | (253) 428-8700 |
| 84 | THE POLYCLINIC PLLC | SEATTLE | WA | DIAGNOSTIC RADIOLOGY | 371 | 407 | $10,582 | $26 | premium | 1.1% | (206) 309-1760 |
| 85 | CANCER CENTER OF KANSAS PA | WICHITA | KS | HEMATOLOGY/ONCOLOGY | 27 | 403 | $21,762 | $54 | premium | 1.0% | (316) 262-4467 |
| 86 | CORE PHYSICIANS LLC | EXETER | NH | PHYSICIAN ASSISTANT | 292 | 387 | $11,610 | $30 | premium | 56.6% | (603) 929-1195 |
| 87 | DAVID P ELLENT PLLC | KINGWOOD | TX | FAMILY PRACTICE | 53 | 382 | $31,599 | $83 | premium | 0.2% | (281) 440-5300 |
| 88 | ALLINA HEALTH SYSTEM | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 3855 | 379 | $16,335 | $43 | premium | 0.8% | (612) 863-4000 |
| 89 | OPTUM CARE WASHINGTON PLLC | EVERETT | WA | PHYSICIAN ASSISTANT | 695 | 373 | $7,833 | $21 | premium | 1.0% | (425) 339-5442 |
| 90 | CHS PHYSICIAN PARTNERS PC | ROSLYN | NY | PHYSICIAN ASSISTANT | 734 | 366 | $16,470 | $45 | premium | 0.2% | — |
| 91 | NC IMMUNOLOGY PC | MOORESVILLE | NC | ALLERGY/IMMUNOLOGY | 2 | 346 | $46,710 | $135 | premium | 0.2% | (704) 873-5055 |
| 92 | OPTUM MEDICAL GROUP RHODES P C | LAS VEGAS | NV | NURSE PRACTITIONER | 57 | 336 | $18,144 | $54 | premium | 1.6% | (702) 724-8787 |
| 93 | ASCENSION MEDICAL GROUP PROMED | KALAMAZOO | MI | PHYSICIAN ASSISTANT | 260 | 317 | $6,340 | $20 | premium | 2.1% | (269) 226-5165 |
| 94 | HUTCHINSON CLINIC PA INC | HUTCHINSON | KS | PHYSICIAN ASSISTANT | 131 | 317 | $14,899 | $47 | premium | 0.8% | (620) 669-2500 |
| 95 | ARTHRITIS CENTERS OF TEXAS, P.A. | DALLAS | TX | RHEUMATOLOGY | 4 | 314 | $2,950 | $9 | premium | 0.2% | (214) 823-6503 |
| 96 | UNIVERSITY OF MARYLAND ST JOSEPH MEDICAL GROUP LLC | TOWSON | TN | NURSE PRACTITIONER | 292 | 309 | $10,058 | $33 | premium | 0.6% | (410) 337-4877 |
| 97 | PIEDMONT HEALTHCARE PA | STATESVILLE | NC | PHYSICIAN ASSISTANT | 226 | 278 | $37,530 | $135 | premium | 0.2% | (704) 838-8210 |
| 98 | COOKEVILLE REGIONAL MEDICAL CENTER | COOKEVILLE | AL | PSYCHIATRY | 58 | 273 | $14,742 | $54 | premium | 0.4% | (931) 783-2497 |
| 99 | NORTHWEST MEDICAL SPECIALTIES PLLC | TACOMA | IL | HEMATOLOGY/ONCOLOGY | 39 | 248 | $3,720 | $15 | premium | 0.6% | (253) 428-8700 |
| 100 | FAIRVIEW CLINICS | EAGAN | MN | FAMILY PRACTICE | 816 | 233 | $6,102 | $26 | premium | 0.5% | (651) 406-8860 |
Showing the top 100 of 143 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 →