3,254 observed fee-for-service (50%) · ~3,261 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 payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Or just look at it: nuclear heart imaging (78452) in Arizona is open as a live example — the full paid view, real data.
View the live example →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 activate to sort | City activate to sort | St activate to sort | Specialty activate to sort | Providers activate to sort | 36245 svcs sorted descending — activate to reverse | Submitted charges activate to sort | Avg charge activate to sort | Medicare $ locked column | Share* activate to sort | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SILVER SPRING MEDICAL GROUP LLC | BOWIE | DC | INTERNAL MEDICINE | 2 | 188 | $300,800 | $1,600 | premium | 100.0% | (301) 262-1087 |
| 2 | ORLANDO HEART AND VASCULAR CENTER LLC | ORLANDO | FL | NURSE PRACTITIONER | 7 | 161 | $511,186 | $3,175 | premium | 18.7% | (407) 482-7788 |
| 3 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 152 | $1,047,596 | $6,892 | premium | 25.9% | (631) 751-3000 |
| 4 | ARTEMIS MEDICAL CENTER INC | MONTEBELLO | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 114 | $171,000 | $1,500 | premium | 9.4% | (626) 316-7776 |
| 5 | CARDIOVASCULAR SOLUTIONS INSTITUTE LLC | BRADENTON | FL | INTERVENTIONAL CARDIOLOGY | 3 | 105 | $153,085 | $1,458 | premium | 12.2% | (941) 747-8789 |
| 6 | MCV ASSOCIATED PHYSICIANS | RICHMOND | VA | NURSE PRACTITIONER | 1791 | 86 | $398,352 | $4,632 | premium | 44.3% | (804) 828-9000 |
| 7 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 85 | $94,050 | $1,106 | premium | 60.7% | — |
| 8 | FLINT VASCULAR SURGERY PLLC | FLINT | MI | GENERAL SURGERY | 3 | 79 | $161,500 | $2,044 | premium | 54.9% | (810) 535-5555 |
| 9 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 75 | $215,824 | $2,878 | premium | 74.3% | (507) 284-2511 |
| 10 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 71 | $39,810 | $561 | premium | 77.2% | (913) 588-1227 |
| 11 | HEART OF THE VILLAGES PLC | LADY LAKE | FL | NURSE PRACTITIONER | 16 | 53 | $123,615 | $2,332 | premium | 6.2% | (352) 674-2080 |
| 12 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 52 | $137,942 | $2,653 | premium | 6.0% | (352) 265-8990 |
| 13 | RADIOLOGY OF HUNSTVILLE PC | HUNTSVILLE | AL | DIAGNOSTIC RADIOLOGY | 63 | 51 | $20,451 | $401 | premium | 46.4% | 2565390457145 |
| 14 | ADVANCED GARDEN STATE CARDIOLOGY LLC | JERSEY CITY | NJ | PHYSICIAN ASSISTANT | 14 | 48 | $225,360 | $4,695 | premium | 60.0% | (201) 418-9111 |
| 15 | HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC | BOSTON | MA | INTERNAL MEDICINE | 1689 | 46 | $34,868 | $758 | premium | 29.3% | (781) 983-9088 |
| 16 | HMDOD LLC | EL DORADO | AR | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 6 | 46 | $100,280 | $2,180 | premium | 59.7% | (870) 875-1481 |
| 17 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 44 | $112,816 | $2,564 | premium | 30.1% | — |
| 18 | UC REGENTS | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 99 | 42 | $44,100 | $1,050 | premium | 3.5% | (714) 456-7004 |
| 19 | AVERA MCKENNAN | SIOUX FALLS | SD | NURSE PRACTITIONER | 964 | 40 | $5,380 | $135 | premium | 48.8% | (605) 322-5180 |
| 20 | VASCULAR INSTITUTE OF CHATTANOOGA, PLLC | CHATTANOOGA | TN | NURSE PRACTITIONER | 19 | 38 | $126,741 | $3,335 | premium | 21.3% | (423) 602-2750 |
| 21 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 37 | $26,475 | $716 | premium | 3.1% | (714) 871-3006 |
| 22 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 37 | $252,790 | $6,832 | premium | 3.1% | (415) 600-1020 |
| 23 | CARDIOLOGY ASSOC OF PORT HURON | PORT HURON | MI | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 10 | 36 | $13,428 | $373 | premium | 25.0% | (810) 985-9681 |
| 24 | FAIRBANKS MEMORIAL CARDIOLOGY CENTER LLC | FAIRBANKS | WA | PHYSICIAN ASSISTANT | 26 | 36 | $179,200 | $4,978 | premium | 54.5% | (907) 458-6450 |
| 25 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 35 | $63,385 | $1,811 | premium | 31.8% | (205) 934-3460 |
| 26 | EAST TEXAS SURGICAL ASSOCIATES, PA | CORPUS CHRISTI | TX | NURSE PRACTITIONER | 5 | 33 | $125,400 | $3,800 | premium | 7.5% | (361) 882-4000 |
| 27 | BILLINGS CLINIC | BILLINGS | MT | PHYSICIAN ASSISTANT | 811 | 33 | $40,304 | $1,221 | premium | 38.8% | (406) 657-4000 |
| 28 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 31 | $182,900 | $5,900 | premium | 100.0% | (203) 688-4242 |
| 29 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 31 | $27,156 | $876 | premium | 31.3% | (215) 662-2777 |
| 30 | PRIME HEALTHCARE KANSAS CITY - PHYSICIAN SERVICES LLC | KANSAS CITY | MO | NURSE PRACTITIONER | 78 | 29 | $19,430 | $670 | premium | 51.8% | (816) 943-4758 |
| 31 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 29 | $63,771 | $2,199 | premium | 18.5% | (617) 732-5500 |
| 32 | SURGICAL ASSOCIATES CHARTERED | CAMP SPRINGS | VA | GENERAL SURGERY | 8 | 29 | $89,900 | $3,100 | premium | 14.9% | (240) 427-1630 |
| 33 | HEART HOSPITAL OF SOUTH DAKOTA LLC | SIOUX FALLS | SD | NURSE PRACTITIONER | 67 | 28 | $5,927 | $212 | premium | 34.1% | (605) 977-7000 |
| 34 | SAINT FRANCIS MEDICAL CENTER | CAPE GIRARDEAU | MO | NURSE PRACTITIONER | 435 | 27 | $108,000 | $4,000 | premium | 48.2% | (573) 331-3000 |
| 35 | VASCULAR AND INTERVENTIONAL PARTNERS PLLC | SCOTTSDALE | AZ | PHYSICIAN ASSISTANT | 24 | 26 | $75,790 | $2,915 | premium | 12.3% | (480) 435-9100 |
| 36 | UCLA RADIOLOGY MEDICAL GROUP | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 191 | 26 | $170,936 | $6,574 | premium | 2.1% | (310) 301-6800 |
| 37 | BAYLOR COLLEGE OF MEDICINE | HOUSTON | TX | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1222 | 26 | $46,566 | $1,791 | premium | 5.9% | — |
| 38 | LOUISIANA HEART AND VASCULAR INSTITUTE, LLC | COVINGTON | LA | NURSE PRACTITIONER | 15 | 26 | $88,712 | $3,412 | premium | 53.1% | (985) 777-7000 |
| 39 | ST VINCENT MEDICAL GROUP INC | INDIANAPOLIS | IN | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 718 | 26 | $47,060 | $1,810 | premium | 37.7% | (317) 338-2345 |
| 40 | GOLDEN STATE FAMILY CLINIC | LOS ANGELES | CA | INTERNAL MEDICINE | 2 | 26 | $52,000 | $2,000 | premium | 2.1% | (323) 264-2670 |
| 41 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 26 | $23,334 | $897 | premium | 3.0% | (813) 745-4673 |
| 42 | COOKEVILLE REGIONAL MEDICAL GROUP INC | COOKEVILLE | TN | NURSE PRACTITIONER | 54 | 25 | $22,500 | $900 | premium | 14.0% | (931) 783-2143 |
| 43 | PRIMARY HEALTH, LLC | BALA CYNWYD | PA | GENERAL PRACTICE | 2 | 25 | $56,500 | $2,260 | premium | 25.3% | (215) 709-3800 |
| 44 | MTV IR PLLC | DALLAS | TX | DIAGNOSTIC RADIOLOGY | 2 | 25 | $136,075 | $5,443 | premium | 5.7% | (469) 458-9800 |
| 45 | HENDRICK PROVIDER NETWORK | ABILENE | TX | PHYSICIAN ASSISTANT | 249 | 24 | $121,854 | $5,077 | premium | 5.5% | (325) 672-4372 |
| 46 | ATLANTA HEART SPECIALISTS LLC | TUCKER | GA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 19 | 24 | $60,000 | $2,500 | premium | 63.2% | (770) 638-1400 |
| 47 | CARILION MEDICAL CENTER | ROANOKE | VA | PHYSICIAN ASSISTANT | 964 | 23 | $23,910 | $1,040 | premium | 11.9% | (540) 981-7925 |
| 48 | OSU RADIOLOGY LLC | COLUMBUS | OH | DIAGNOSTIC RADIOLOGY | 174 | 23 | $23,920 | $1,040 | premium | 13.7% | (614) 293-8315 |
| 49 | BASSAM SAYEGH MD PA | JUPITER | FL | GENERAL SURGERY | 2 | 23 | $58,284 | $2,534 | premium | 2.7% | (561) 743-7766 |
| 50 | LAREDO CARDIOVASCULAR CONSULTANTS,P.A. | LAREDO | TX | INTERNAL MEDICINE | 4 | 23 | $46,000 | $2,000 | premium | 5.2% | (956) 725-1228 |
| 51 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | FL | NURSE PRACTITIONER | 1815 | 22 | $12,192 | $554 | premium | 2.6% | (913) 588-1227 |
| 52 | MEMORIAL HEALTH PARTNERS FOUNDATION, INC | CHATTANOOGA | TN | NURSE PRACTITIONER | 459 | 22 | $44,880 | $2,040 | premium | 12.4% | (423) 495-2620 |
| 53 | YALE UNIVERSITY | NEW HAVEN | NH | PHYSICIAN ASSISTANT | 2649 | 21 | $123,900 | $5,900 | premium | 35.0% | (203) 688-4242 |
| 54 | MANHATTAN MEDICAL GROUP LLC | MANHATTAN | KS | NURSE PRACTITIONER | 15 | 21 | $42,000 | $2,000 | premium | 22.8% | (785) 539-4644 |
| 55 | RADIOLOGY ASSOCIATES OF PENSACOLA PA | PENSACOLA | FL | DIAGNOSTIC RADIOLOGY | 21 | 21 | $17,325 | $825 | premium | 2.4% | (850) 208-6000 |
| 56 | ATLANTICARE PHYSICIAN GROUP PA | EGG HARBOR TOWNSHIP | NJ | NURSE PRACTITIONER | 507 | 20 | $9,820 | $491 | premium | 25.0% | — |
| 57 | COMMUNITY CARE PHYSICIANS PLLC | LATHAM | NY | DIAGNOSTIC RADIOLOGY | 370 | 19 | $48,355 | $2,545 | premium | 3.2% | (518) 782-3700 |
| 58 | RADIOLOGY LTD LLC | TUCSON | AZ | DIAGNOSTIC RADIOLOGY | 102 | 19 | $55,119 | $2,901 | premium | 9.0% | (520) 290-4842 |
| 59 | FPA HOSPITAL BASED | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 427 | 19 | $129,959 | $6,840 | premium | 3.2% | (212) 252-6004 |
| 60 | COASTAL VASCULAR INSTITUTE, PA | WILMINGTON | NC | PHYSICIAN ASSISTANT | 4 | 19 | $28,500 | $1,500 | premium | 19.6% | (910) 343-0811 |
| 61 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 19 | $25,631 | $1,349 | premium | 1.6% | (626) 256-4673 |
| 62 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 18 | $98,298 | $5,461 | premium | 1.5% | (650) 723-4000 |
| 63 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 18 | $41,781 | $2,321 | premium | 11.5% | (617) 724-0287 |
| 64 | ADVENTIST HEALTH SYSTEM-SUNBELT INC | SEBRING | FL | INTERNAL MEDICINE | 107 | 18 | $13,813 | $767 | premium | 2.1% | (863) 314-4466 |
| 65 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 18 | $12,841 | $713 | premium | 27.3% | (206) 364-0500 |
| 66 | ADVANCED CARDIOVASCULAR CARE PLLC | SARASOTA | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 17 | $20,219 | $1,189 | premium | 2.0% | (941) 365-6611 |
| 67 | VASCULAR HEALTH LLC | FREEHOLD | NY | NURSE PRACTITIONER | 10 | 17 | $51,000 | $3,000 | premium | 2.9% | (732) 952-5353 |
| 68 | UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES | LITTLE ROCK | AR | NURSE PRACTITIONER | 1241 | 17 | $57,868 | $3,404 | premium | 22.1% | (501) 686-8000 |
| 69 | HEART360 SPECIALISTS PC | NORTH RICHLAND HILLS | TX | NURSE PRACTITIONER | 6 | 17 | $67,108 | $3,948 | premium | 3.9% | (817) 803-1234 |
| 70 | GREAT FALLS CLINIC LLC | GREAT FALLS | MT | PHYSICIAN ASSISTANT | 68 | 16 | $16,591 | $1,037 | premium | 18.8% | (406) 454-2171 |
| 71 | ST JOSEPH HOSPITAL LLC | LEWISTON | ID | PHYSICIAN ASSISTANT | 86 | 16 | $19,200 | $1,200 | premium | 100.0% | (208) 298-1050 |
| 72 | PADDER HEALTH SERVICES LLC | LAUREL | MD | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 18 | 16 | $6,400 | $400 | premium | 9.2% | (301) 560-4747 |
| 73 | UNMC PHYSICIANS | OMAHA | NE | PHYSICIAN ASSISTANT | 1514 | 16 | $32,832 | $2,052 | premium | 25.8% | (402) 559-4000 |
| 74 | KENTUCKY MEDICAL SERVICES FOUNDATION, INC | LEXINGTON | KY | DIAGNOSTIC RADIOLOGY | 989 | 16 | $28,224 | $1,764 | premium | 33.3% | (859) 257-1412 |
| 75 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 16 | $63,872 | $3,992 | premium | 11.0% | (708) 216-8372 |
| 76 | MEDICAL ASSOCIATES OF ENGLEWOOD PC | ENGLEWOOD | NY | INTERNAL MEDICINE | 550 | 16 | $12,720 | $795 | premium | 2.7% | (201) 894-3158 |
| 77 | JOHNS HOPKINS UNIVERSITY | BALTIMORE | MD | NURSE PRACTITIONER | 2900 | 15 | $20,070 | $1,338 | premium | 8.7% | (410) 502-4340 |
| 78 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | VASCULAR SURGERY | 15 | 15 | $33,264 | $2,218 | premium | 1.2% | (310) 825-9111 |
| 79 | BOCACARE INC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 199 | 15 | $14,767 | $984 | premium | 1.7% | (561) 955-7100 |
| 80 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 15 | $73,425 | $4,895 | premium | 1.2% | (800) 926-8273 |
| 81 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 15 | $18,540 | $1,236 | premium | 2.6% | — |
| 82 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 15 | $24,417 | $1,628 | premium | 3.4% | — |
| 83 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | TX | NURSE PRACTITIONER | 1815 | 14 | $7,599 | $543 | premium | 3.2% | (913) 588-1227 |
| 84 | JEFFERSON UNIVERSITY PHYSICIANS | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 1570 | 14 | $26,600 | $1,900 | premium | 14.1% | — |
| 85 | PREMIER CARDIOLOGY CONSULTANTS, PLLC | JAMAICA | NY | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 9 | 14 | $56,000 | $4,000 | premium | 2.4% | (718) 977-1207 |
| 86 | RUSH UNIVERSITY MEDICAL GROUP | CHICAGO | IL | PHYSICIAN ASSISTANT | 1496 | 14 | $13,950 | $996 | premium | 9.6% | (312) 563-2875 |
| 87 | RADIOLOGIC CENTER INC | OMAHA | NE | DIAGNOSTIC RADIOLOGY | 20 | 14 | $33,572 | $2,398 | premium | 22.6% | (402) 390-0606 |
| 88 | CARDIOLOGY CLINIC OF SAN ANTONIO, PLLC | SAN ANTONIO | GA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 124 | 14 | $9,852 | $704 | premium | 36.8% | (210) 271-3204 |
| 89 | DEACONESS SPECIALTY PHYSICIANS, INC | NEWBURGH | IN | NURSE PRACTITIONER | 207 | 14 | $57,213 | $4,087 | premium | 20.3% | (812) 842-2737 |
| 90 | BHS PHYSICIANS NETWORK, INC | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 696 | 13 | $8,944 | $688 | premium | 3.0% | (210) 614-7414 |
| 91 | VASCULAR INSTITUTE OF THE MIDWEST PC | DAVENPORT | IA | INTERVENTIONAL CARDIOLOGY | 2 | 13 | $57,036 | $4,387 | premium | 100.0% | (563) 324-3818 |
| 92 | BAPTIST MEMORIAL MEDICAL GROUP, INC. | MEMPHIS | TN | NURSE PRACTITIONER | 549 | 13 | $28,483 | $2,191 | premium | 7.3% | (901) 226-3882 |
| 93 | SONORAN VEIN AND ENDOVASCULAR LLC | PEORIA | AZ | VASCULAR SURGERY | 6 | 13 | $46,553 | $3,581 | premium | 6.1% | — |
| 94 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 13 | $233,571 | $17,967 | premium | 2.2% | (212) 263-9700 |
| 95 | OLYMPIC MEDICAL IMAGING CONSULTANTS, PLLC | SILVERDALE | WA | DIAGNOSTIC RADIOLOGY | 17 | 12 | $7,584 | $632 | premium | 18.2% | (360) 337-6500 |
| 96 | ST FRANCIS MEDICAL GROUP LLC | MONROE | LA | NURSE PRACTITIONER | 165 | 12 | $34,812 | $2,901 | premium | 24.5% | (318) 966-6500 |
| 97 | TENNESSEE INTERVENTIONAL AND IMAGING ASSOCIATES PLLC | CHATTANOOGA | TN | DIAGNOSTIC RADIOLOGY | 32 | 12 | $7,536 | $628 | premium | 6.7% | (423) 778-7234 |
| 98 | VASCULAR SURGERY ASSOCIATES PLLC | CHICAGO RIDGE | IL | VASCULAR SURGERY | 7 | 12 | $32,115 | $2,676 | premium | 8.2% | (708) 346-9533 |
| 99 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 11 | $8,646 | $786 | premium | 11.1% | — |
| 100 | ALBEMARLE PHYSICIAN SERVICES - SENTARA INC | ELIZABETH CITY | NC | NURSE PRACTITIONER | 77 | 11 | $5,079 | $462 | premium | 11.3% | (252) 384-2600 |
Showing the top 100 of 100 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 →