93242 — Heart rhythm recording continous external ekg over more than 48 hours up to 7 days
66,765 observed fee-for-service (49%) · ~69,193 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 | 93242 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,331 | $178,354 | $134 | premium | 13.6% | (212) 263-9700 |
| 2 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 1,162 | $96,446 | $83 | premium | 11.8% | — |
| 3 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 1,072 | $102,912 | $96 | premium | 7.5% | — |
| 4 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 913 | $59,345 | $65 | premium | 7.0% | (415) 600-1020 |
| 5 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 294 | 872 | $38,368 | $44 | premium | 8.1% | (904) 308-6900 |
| 6 | INOVA HEALTH CARE SERVICES | FALLS CHURCH | VA | NURSE PRACTITIONER | 1818 | 789 | $35,505 | $45 | premium | 38.0% | — |
| 7 | BHS PHYSICIANS NETWORK, INC | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 696 | 787 | $34,628 | $44 | premium | 5.5% | (210) 614-7414 |
| 8 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 782 | $47,682 | $61 | premium | 6.0% | (916) 681-8852 |
| 9 | WASHINGTON REGIONAL MEDICAL SYSTEM | FAYETTEVILLE | AR | NURSE PRACTITIONER | 241 | 721 | $23,072 | $32 | premium | 34.1% | (479) 571-4338 |
| 10 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 701 | $37,576 | $54 | premium | 17.9% | (919) 684-8111 |
| 11 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 682 | $21,142 | $31 | premium | 6.8% | — |
| 12 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 676 | $42,588 | $63 | premium | 17.2% | (704) 667-1000 |
| 13 | ST DAVIDS HEART AND VASCULAR PLLC | AUSTIN | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 199 | 672 | $32,004 | $48 | premium | 4.7% | (512) 899-2028 |
| 14 | THE CHRIST HOSPITAL CARDIOVASCULAR ASSOCIATES LLC | CINCINNATI | OH | NURSE PRACTITIONER | 144 | 668 | $22,044 | $33 | premium | 38.3% | — |
| 15 | TEXOMA CARDIOVASCULAR ASSOCIATES LLP | SHERMAN | TX | INTERVENTIONAL CARDIOLOGY | 2 | 635 | $15,226 | $24 | premium | 4.5% | (903) 214-6161 |
| 16 | HONORHEALTH AMBULATORY | SCOTTSDALE | AZ | PHYSICIAN ASSISTANT | 601 | 625 | $21,155 | $34 | premium | 23.2% | — |
| 17 | STONY BROOK INTERNISTS UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | HOSPITALIST | 414 | 617 | $40,105 | $65 | premium | 6.3% | (631) 444-1560 |
| 18 | INTERVENTIONAL CARDIOLOGISTS OF GAINESVILLE, PA | GAINESVILLE | FL | INTERVENTIONAL CARDIOLOGY | 36 | 582 | $33,458 | $57 | premium | 5.4% | (352) 375-1212 |
| 19 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 567 | $34,957 | $62 | premium | 4.3% | (310) 423-0674 |
| 20 | MAIN LINE HEALTHCARE | BRYN MAWR | PA | NURSE PRACTITIONER | 1157 | 531 | $27,620 | $52 | premium | 5.3% | — |
| 21 | MONTEFIORE MEDICAL CENTER | BRONX | NY | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 2796 | 518 | $51,800 | $100 | premium | 5.3% | (866) 633-8255 |
| 22 | CARDIOVASCULAR MEDICAL GROUP OF SOUTHERN CALIFORNIA | BEVERLY HILLS | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 11 | 512 | $124,100 | $242 | premium | 3.9% | (310) 278-3400 |
| 23 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 502 | $23,604 | $47 | premium | 5.1% | (914) 241-1050 |
| 24 | CENTRAL FLORIDA CARDIOLOGY GROUP PA | ORLANDO | FL | NURSE PRACTITIONER | 11 | 502 | $22,590 | $45 | premium | 4.7% | (407) 841-7151 |
| 25 | PECONIC CARDIOLOGY PC | RIVERHEAD | NY | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 19 | 495 | $41,085 | $83 | premium | 5.0% | (631) 727-7773 |
| 26 | TEMECULA VALLEY CARDIOLOGY MEDICAL GROUP INC | MURRIETA | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 7 | 491 | $19,149 | $39 | premium | 3.8% | (951) 698-4600 |
| 27 | PACIFIC CENTRAL COAST HEALTH CENTERS | SANTA MARIA | CA | PHYSICIAN ASSISTANT | 249 | 485 | $16,710 | $34 | premium | 3.7% | (805) 349-8514 |
| 28 | BAPTIST HEALTH MEDICAL GROUP INC | LOUISVILLE | KY | NURSE PRACTITIONER | 2448 | 482 | $12,532 | $26 | premium | 42.4% | (502) 928-1050 |
| 29 | OHI WEST MEDICAL GROUP II LLC | ZEPHYRHILLS | FL | NURSE PRACTITIONER | 417 | 478 | $17,013 | $36 | premium | 4.4% | (813) 751-3375 |
| 30 | CRMC MSO SUB 1 INCORPORATED | COOKEVILLE | TN | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 21 | 475 | $30,875 | $65 | premium | 14.3% | (931) 372-0405 |
| 31 | ST FRANCIS MEDICAL GROUP LLC | MONROE | LA | NURSE PRACTITIONER | 165 | 463 | $15,286 | $33 | premium | 18.1% | (318) 966-6500 |
| 32 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 456 | $41,040 | $90 | premium | 4.6% | (212) 305-8559 |
| 33 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | INTERNAL MEDICINE | 1424 | 447 | $82,695 | $185 | premium | 3.4% | (310) 825-7922 |
| 34 | MEDICAL ASSOCIATES OF ENGLEWOOD PC | ENGLEWOOD | NJ | INTERNAL MEDICINE | 550 | 429 | $23,595 | $55 | premium | 8.2% | (201) 894-3158 |
| 35 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 422 | $23,210 | $55 | premium | 4.3% | (212) 241-4812 |
| 36 | ATLANTICARE PHYSICIAN GROUP PA | EGG HARBOR TOWNSHIP | NJ | NURSE PRACTITIONER | 507 | 416 | $11,232 | $27 | premium | 8.0% | — |
| 37 | OSF MULTI-SPECIALTY GROUP | PEORIA | IL | NURSE PRACTITIONER | 2091 | 409 | $27,403 | $67 | premium | 6.5% | (309) 683-5050 |
| 38 | BARNABAS HEALTH MEDICAL GROUP PC | LIVINGSTON | NJ | NURSE PRACTITIONER | 990 | 408 | $33,033 | $81 | premium | 7.8% | — |
| 39 | HEARTPLACE PLLC | PLANO | TX | INTERVENTIONAL CARDIOLOGY | 93 | 401 | $15,695 | $39 | premium | 2.8% | (972) 985-8838 |
| 40 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 399 | $31,122 | $78 | premium | 6.4% | — |
| 41 | SAINT THOMAS MEDICAL PARTNERS | NASHVILLE | TN | NURSE PRACTITIONER | 591 | 390 | $12,480 | $32 | premium | 11.7% | (615) 269-4545 |
| 42 | HEART CENTRAL OF WASHINGTON PLLC | YAKIMA | WA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 5 | 384 | $13,546 | $35 | premium | 27.4% | (509) 902-3625 |
| 43 | BAYLOR ST. LUKE'S MEDICAL GROUP | THE WOODLANDS | TX | PHYSICIAN ASSISTANT | 177 | 382 | $31,993 | $84 | premium | 2.7% | (281) 444-3278 |
| 44 | MARYLAND CARDIAC CARE, LLC | ROCKVILLE | MD | NURSE PRACTITIONER | 3 | 372 | $9,300 | $25 | premium | 9.2% | (301) 337-9766 |
| 45 | CARDIOLOGY SPECIALISTS OF ACADIANA, LLC | LAFAYETTE | LA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 17 | 352 | $25,940 | $74 | premium | 13.7% | 3372699777139 |
| 46 | ST. JOSEPH'S CARDIOLOGY GROUP LLC | SAVANNAH | GA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 17 | 350 | $13,450 | $38 | premium | 22.1% | (912) 927-3434 |
| 47 | ALLINA HEALTH SYSTEM | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 3855 | 330 | $15,180 | $46 | premium | 46.5% | (612) 863-4000 |
| 48 | BARNABAS HEALTH MEDICAL GROUP, PC | NEWARK | NJ | PSYCHIATRY | 254 | 330 | $18,480 | $56 | premium | 6.3% | (973) 926-7814 |
| 49 | THE HEART CENTER OF PALM COAST, LLC | PALM COAST | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 328 | $3,824 | $12 | premium | 3.0% | 8322643744000 |
| 50 | REGENTS UNIV OF CALIFORNIA UCSF | SAN FRANCISCO | CA | PHYSICIAN ASSISTANT | 277 | 322 | $29,125 | $90 | premium | 2.5% | (415) 476-1000 |
| 51 | CHAS PHYSICIAN SERVICES LLC | COLUMBIA | MO | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 22 | 320 | $11,200 | $35 | premium | 21.4% | (573) 256-7700 |
| 52 | ST. PETER'S HEALTH PARTNERS MEDICAL ASSOCIATES, P.C. | ALBANY | NY | PHYSICIAN ASSISTANT | 480 | 306 | $8,708 | $28 | premium | 3.1% | (518) 525-1852 |
| 53 | ST VINCENT'S AMBULATORY CARE INC | JACKSONVILLE | GA | NURSE PRACTITIONER | 294 | 302 | $13,288 | $44 | premium | 19.0% | (904) 308-6900 |
| 54 | CHI HEALTH CLINIC SPECIALTY LLC | LINCOLN | NE | NURSE PRACTITIONER | 309 | 294 | $9,702 | $33 | premium | 63.2% | (402) 219-8000 |
| 55 | VALLEY PHYSICIAN SERVICES PC | HOBOKEN | NJ | NURSE PRACTITIONER | 606 | 286 | $16,016 | $56 | premium | 5.5% | (800) 825-5391 |
| 56 | MERCY CLINIC FORT SMITH COMMUNITIES | FORT SMITH | AR | NURSE PRACTITIONER | 349 | 285 | $9,120 | $32 | premium | 13.5% | (479) 314-5175 |
| 57 | KINGS PHYSICIAN SERVICES PC | BROOKLYN | NY | PHYSICIAN ASSISTANT | 664 | 284 | $19,810 | $70 | premium | 2.9% | — |
| 58 | PINNACLE HEALTH CARDIOVASCULAR INSTITUTE INC | MECHANICSBURG | PA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 113 | 281 | $7,587 | $27 | premium | 2.8% | (717) 731-0101 |
| 59 | CENTRIC HEALTH | BAKERSFIELD | CA | INTERNAL MEDICINE | 63 | 280 | $28,000 | $100 | premium | 2.1% | — |
| 60 | CARDIOLOGY ASSOCIATES OF MOBILE INC | MOBILE | AL | PHYSICIAN ASSISTANT | 52 | 280 | $4,760 | $17 | premium | 13.3% | (251) 460-0078 |
| 61 | MOUNTAINSTAR CARDIOLOGY ST MARKS LLC | OGDEN | UT | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 41 | 270 | $12,006 | $44 | premium | 63.5% | (801) 479-2111 |
| 62 | VIRTUA MEDICAL GROUP, PA | VOORHEES | NJ | PHYSICIAN ASSISTANT | 1662 | 268 | $13,936 | $52 | premium | 5.1% | (856) 247-7260 |
| 63 | MERITAS HEALTH CORPORATION | NORTH KANSAS CITY | MO | NEUROLOGY | 498 | 266 | $11,704 | $44 | premium | 17.8% | (816) 472-5157 |
| 64 | ARIA HEALTH PHYSICIAN SERVICES | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 489 | 265 | $10,600 | $40 | premium | 2.6% | (215) 890-3030 |
| 65 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 252 | $50,754 | $201 | premium | 1.9% | (916) 983-7476 |
| 66 | ADVENTIST PHYSICIAN SERVICES INC | ROCKVILLE | MD | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 145 | 252 | $12,986 | $52 | premium | 6.2% | (301) 670-3000 |
| 67 | ROSEVILLE CARDIOLOGY MEDICAL ASSOCIATES, INC. | ROSEVILLE | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 7 | 249 | $12,450 | $50 | premium | 1.9% | (916) 782-2146 |
| 68 | BON SECOURS MEDICAL GROUP GREENVILLE SPECIALTY CARE LLC | GREENVILLE | SC | NURSE PRACTITIONER | 288 | 240 | $7,200 | $30 | premium | 12.3% | (864) 255-1901 |
| 69 | ROBERT WOOD JOHNSON PHYSICIAN ENTERPRISE | SOMERSET | NJ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 62 | 238 | $19,754 | $83 | premium | 4.5% | (732) 369-5994 |
| 70 | BIRMINGHAM HEART CLINIC, PLLC | BIRMINGHAM | AL | INTERVENTIONAL CARDIOLOGY | 25 | 237 | $9,129 | $39 | premium | 11.3% | (205) 856-2284 |
| 71 | NORTHWELL HEALTHCARE INC | SEAFORD | NY | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 17 | 227 | $17,025 | $75 | premium | 2.3% | (516) 809-4200 |
| 72 | JOHNS HOPKINS COMMUNITY PHYSICIANS, INC | BALTIMORE | MD | INTERNAL MEDICINE | 760 | 219 | $10,402 | $48 | premium | 5.4% | (410) 522-9800 |
| 73 | MISSION HEALTH COMMUNITY MULTISPECIALTY PROVIDERS LLC | ASHEVILLE | NC | PHYSICIAN ASSISTANT | 593 | 218 | $8,938 | $41 | premium | 5.6% | (828) 213-1740 |
| 74 | THE IOWA CLINIC PC | WEST DES MOINES | IA | PHYSICIAN ASSISTANT | 302 | 216 | $14,256 | $66 | premium | 35.6% | (515) 343-1000 |
| 75 | JACKSON CLINIC PA | JACKSON | TN | NURSE PRACTITIONER | 183 | 214 | $6,420 | $30 | premium | 6.4% | (731) 422-0213 |
| 76 | OVERLAKE MEDICAL CLINICS LLC | BELLEVUE | WA | NURSE PRACTITIONER | 414 | 213 | $8,465 | $40 | premium | 15.2% | (425) 688-5460 |
| 77 | CHARLESTON AREA MEDICAL CENTER INC | CHARLESTON | WV | NURSE PRACTITIONER | 970 | 210 | $29,820 | $142 | premium | 29.5% | (304) 388-5432 |
| 78 | CARDIOLOGY CENTER OF ENGLEWOOD PA | ENGLEWOOD | FL | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 6 | 209 | $2,433 | $12 | premium | 1.9% | (941) 475-5621 |
| 79 | ST PAUL PLACE SPECIALISTS, INC. | BALTIMORE | MD | PHYSICIAN ASSISTANT | 337 | 208 | $11,024 | $53 | premium | 5.2% | (410) 663-8100 |
| 80 | CARDIOLOGY ASSOC OF PORT HURON | PORT HURON | MI | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 10 | 205 | $5,125 | $25 | premium | 11.4% | (810) 985-9681 |
| 81 | MILLENNIUM PHYSICIAN GROUP LLC | PORT CHARLOTTE | FL | PHYSICIAN ASSISTANT | 953 | 202 | $4,924 | $24 | premium | 1.9% | (941) 255-3535 |
| 82 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 199 | $12,595 | $63 | premium | 3.8% | (732) 362-3663 |
| 83 | CARDIOVASCULAR ASSOCIATES OF MARYLAND LLC | BEL AIR | MD | PHYSICIAN ASSISTANT | 4 | 198 | $7,722 | $39 | premium | 4.9% | (410) 638-9950 |
| 84 | BAYCARE MEDICAL GROUP, INC. | CLEARWATER | FL | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 1526 | 198 | $5,544 | $28 | premium | 1.8% | (727) 725-5060 |
| 85 | ROPER SAINT FRANCIS PHYSICIANS NETWORK | CHARLESTON | SC | PHYSICIAN ASSISTANT | 539 | 197 | $6,554 | $33 | premium | 10.1% | (843) 720-8448 |
| 86 | DELTA CLINICS PLC | JACKSON | TN | NURSE PRACTITIONER | 14 | 197 | $6,325 | $32 | premium | 5.9% | (731) 512-0104 |
| 87 | VHS OUTPATIENT CLINICS INC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 180 | 197 | $8,668 | $44 | premium | 7.3% | (602) 274-6506 |
| 88 | CHS PHYSICIAN PARTNERS PC | ROSLYN | NY | PHYSICIAN ASSISTANT | 734 | 191 | $8,371 | $44 | premium | 1.9% | — |
| 89 | NORTHEAST ARKANSAS CLINIC CHARITABLE FOUNDATION, INC. | JONESBORO | AR | NURSE PRACTITIONER | 301 | 190 | $9,880 | $52 | premium | 9.0% | (870) 936-8000 |
| 90 | FLORIDA HOSPITAL MEDICAL GROUP INC | MAITLAND | FL | PHYSICIAN ASSISTANT | 1634 | 188 | $6,580 | $35 | premium | 1.7% | (407) 200-2700 |
| 91 | CARDIOVASCULAR CONSULTANTS OF SAN GABRIEL VALLEY, INC. | ARCADIA | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 187 | $9,350 | $50 | premium | 1.4% | (626) 566-2750 |
| 92 | LAWRENCE PHYSICIANS LLC | LAWRENCE | KS | PHYSICIAN ASSISTANT | 219 | 185 | $6,105 | $33 | premium | 52.1% | — |
| 93 | MARTHA'S VINEYARD HOSPITAL INC | OAK BLUFFS | MA | NURSE PRACTITIONER | 139 | 184 | $9,460 | $51 | premium | 14.6% | 508693041079525 |
| 94 | ORANGE COUNTY HEART INSTITUTE AND RESEARCH CENTER A MEDICAL GROUP | ORANGE | CA | INTERVENTIONAL CARDIOLOGY | 13 | 183 | $5,124 | $28 | premium | 1.4% | 71456433001157 |
| 95 | NORTH CAROLINA MG LLC | RALEIGH | NC | PHYSICIAN ASSISTANT | 674 | 179 | $9,487 | $53 | premium | 4.6% | (919) 881-0160 |
| 96 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 178 | $9,725 | $55 | premium | 1.4% | (714) 871-3006 |
| 97 | PHOENIX HEART PLLC | GLENDALE | AZ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 16 | 178 | $5,162 | $29 | premium | 6.6% | — |
| 98 | MICHIGAN HEALTHCARE PROFESSIONALS PC | FARMINGTON HILLS | MI | INTERNAL MEDICINE | 518 | 176 | $5,104 | $29 | premium | 9.8% | (248) 477-0552 |
| 99 | PIEDMONT HEALTHCARE PA | STATESVILLE | NC | PHYSICIAN ASSISTANT | 226 | 175 | $7,175 | $41 | premium | 4.5% | (704) 838-8210 |
| 100 | JOHNS HOPKINS REGIONAL PHYSICIANS LLC | LUTHERVILLE | MD | OTOLARYNGOLOGY | 80 | 174 | $7,830 | $45 | premium | 4.3% | (443) 275-1337 |
Showing the top 100 of 599 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 →