37252 — Ultrasound evaluation of blood vessel with review by radiologist, initial vessel
29,901 observed fee-for-service (51%) · ~29,257 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 | 37252 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | VASCULAR SURGERY ASSOCIATES LLC | TOWSON | MD | VASCULAR SURGERY | 15 | 909 | $1,059,684 | $1,166 | premium | 28.3% | (410) 825-4928 |
| 2 | SOUTHERN CONNECTICUT VASCULAR CENTER LLC | STRATFORD | CT | VASCULAR SURGERY | 36 | 852 | $5,112,000 | $6,000 | premium | 60.2% | (203) 210-6340 |
| 3 | AMERICAN ACCESS CARE PHYSICIAN PLLC | BROOKLYN | NY | INTERVENTIONAL RADIOLOGY | 17 | 811 | $2,199,833 | $2,712 | premium | 19.2% | (718) 369-1444 |
| 4 | WASHINGTON CARDIOVASCULAR INSTITUTE, LLC | TAKOMA PARK | MD | NURSE PRACTITIONER | 17 | 712 | $1,826,280 | $2,565 | premium | 22.1% | (301) 891-2500 |
| 5 | SOUTHERN CALIFORNIA VASCULAR INSTITUTE INC | VISTA | CA | INTERVENTIONAL RADIOLOGY | 4 | 580 | $1,334,000 | $2,300 | premium | 6.5% | (914) 979-6159 |
| 6 | CENTER FOR ADVANCED CARDIAC AND VASCULAR INTERVENTIONS | TARZANA | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 11 | 516 | $2,403,450 | $4,658 | premium | 5.8% | (818) 905-5904 |
| 7 | SAMER SAIEDY MD PA | HAVRE DE GRACE | MD | VASCULAR SURGERY | 15 | 459 | $1,147,500 | $2,500 | premium | 14.3% | (410) 942-1000 |
| 8 | VASCULAR CARE SPECIALISTS OF LOS ANGELES | MONTEREY PARK | CA | VASCULAR SURGERY | 2 | 453 | $1,214,040 | $2,680 | premium | 5.1% | (626) 269-9993 |
| 9 | PULSE VASCULAR LLC | VINELAND | NJ | NURSE PRACTITIONER | 34 | 434 | $1,046,750 | $2,412 | premium | 12.1% | — |
| 10 | VASCULAR CARE GROUP LLC | HYANNIS | MA | VASCULAR SURGERY | 27 | 400 | $1,765,693 | $4,414 | premium | 38.6% | (508) 775-1984 |
| 11 | BHS PHYSICIANS NETWORK, INC | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 696 | 397 | $1,011,796 | $2,549 | premium | 9.1% | (210) 614-7414 |
| 12 | SUNLITE MEDICAL ASSOCIATES INC | HIALEAH | FL | NURSE PRACTITIONER | 3 | 396 | $1,188,000 | $3,000 | premium | 7.5% | (305) 822-0068 |
| 13 | VASCULAR AND VEIN INSTITUTE OF THE SOUTH PLLC | GERMANTOWN | TN | VASCULAR SURGERY | 11 | 365 | $665,128 | $1,822 | premium | 25.0% | (901) 390-2930 |
| 14 | MIDWEST INSTITUTE FOR MINIMALLY INVASIVE THERAPIES | HINSDALE | IL | NURSE PRACTITIONER | 8 | 352 | $1,038,400 | $2,950 | premium | 25.8% | (708) 486-2600 |
| 15 | EASTERN NEPHROLOGY ASSOCIATES PLLC | GREENVILLE | SC | NEPHROLOGY | 77 | 314 | $664,110 | $2,115 | premium | 42.3% | (252) 752-8880 |
| 16 | RUSSELL C LAM MD PA | DALLAS | TX | VASCULAR SURGERY | 9 | 287 | $408,611 | $1,424 | premium | 6.6% | (214) 345-4160 |
| 17 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 281 | $683,232 | $2,431 | premium | 3.2% | (650) 723-4000 |
| 18 | SUNRISE VASCULAR CENTER | SANFORD | NC | NURSE PRACTITIONER | 9 | 275 | $516,761 | $1,879 | premium | 20.5% | (919) 589-6968 |
| 19 | VASCULAR INSTITUTE OF CLEVELAND LLC | GARFIELD HEIGHTS | CA | CARDIAC SURGERY | 2 | 271 | $697,825 | $2,575 | premium | 3.0% | (216) 839-0692 |
| 20 | INTERVENTIONAL CARDIOLOGY OF TULSA, LLC | TULSA | OK | INTERVENTIONAL CARDIOLOGY | 2 | 265 | $1,102,825 | $4,162 | premium | 50.1% | (918) 943-5303 |
| 21 | EASTERN NEPHROLOGY ASSOCIATES PLLC | GREENVILLE | VA | NEPHROLOGY | 77 | 248 | $524,520 | $2,115 | premium | 18.2% | (252) 752-8880 |
| 22 | WELLSPAN MEDICAL GROUP | YORK | DE | PHYSICIAN ASSISTANT | 2312 | 246 | $615,000 | $2,500 | premium | 72.1% | — |
| 23 | CENTER FOR ADVANCED CARDIAC AND VASCULAR INTERVENTIONS | TARZANA | MI | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 11 | 235 | $1,117,200 | $4,754 | premium | 11.3% | (818) 905-5904 |
| 24 | VASCULAR SURGERY ASSOCIATES OF RICHMOND PC | HENRICO | VA | PHYSICIAN ASSISTANT | 17 | 228 | $886,698 | $3,889 | premium | 16.8% | (804) 288-1953 |
| 25 | ADVANCED SURGICAL TECHNOLOGY, LLC | CENTRALIA | IL | NURSE PRACTITIONER | 7 | 221 | $1,706,662 | $7,722 | premium | 16.2% | (618) 899-9200 |
| 26 | EASTERN NEPHROLOGY ASSOCIATES PLLC | GREENVILLE | NC | NEPHROLOGY | 77 | 219 | $463,185 | $2,115 | premium | 16.3% | (252) 752-8880 |
| 27 | TENET FLORIDA PHYSICIAN SERVICES LLC | DELRAY BEACH | FL | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 224 | 215 | $816,140 | $3,796 | premium | 4.1% | (561) 498-4440 |
| 28 | FIRST CHOICE PHYSICIAN PARTNERS | PALM SPRINGS | CA | PHYSICIAN ASSISTANT | 148 | 197 | $51,417 | $261 | premium | 2.2% | — |
| 29 | COMMUNITY CARE PHYSICIANS PLLC | LATHAM | NY | DIAGNOSTIC RADIOLOGY | 370 | 195 | $525,915 | $2,697 | premium | 4.6% | (518) 782-3700 |
| 30 | VASCULAR HEALTH LLC | FREEHOLD | NY | NURSE PRACTITIONER | 10 | 193 | $482,500 | $2,500 | premium | 4.6% | (732) 952-5353 |
| 31 | VHC PC | BATTLE CREEK | MI | VASCULAR SURGERY | 3 | 192 | $254,674 | $1,326 | premium | 9.2% | (269) 979-6310 |
| 32 | COASTAL VASCULAR AND VEIN CENTER PA | CHARLESTON | SC | PHYSICIAN ASSISTANT | 11 | 187 | $411,200 | $2,199 | premium | 25.2% | (843) 577-4551 |
| 33 | OREGON SURGICAL SPECIALISTS PC | MEDFORD | OR | PHYSICIAN ASSISTANT | 21 | 186 | $401,416 | $2,158 | premium | 52.2% | (541) 930-8907 |
| 34 | CARDIAC AND VASCULAR CONSULTANTS MD PA | THE VILLAGES | FL | NURSE PRACTITIONER | 12 | 186 | $322,610 | $1,734 | premium | 3.5% | (352) 633-1966 |
| 35 | TEXAS CARDIAC AND VASCULAR SPECIALISTS PA | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 7 | 185 | $487,835 | $2,637 | premium | 4.2% | — |
| 36 | FARSHAD MALEKMEHR MD INC | ENCINO | CA | CARDIAC SURGERY | 2 | 181 | $2,715,000 | $15,000 | premium | 2.0% | (818) 908-9752 |
| 37 | INTERVENTIONAL PARTNERS PLLC | FRISCO | TX | PODIATRY | 93 | 177 | $634,736 | $3,586 | premium | 4.0% | (972) 712-4161 |
| 38 | WEST COAST MEDICINE AND CARDIOLOGY INC | FREMONT | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 4 | 175 | $437,500 | $2,500 | premium | 2.0% | (510) 931-4310 |
| 39 | PACIFIC CARDIOVASCULAR AND VEIN INSTITUTE INC | OXNARD | CA | PHYSICIAN ASSISTANT | 5 | 167 | $584,500 | $3,500 | premium | 1.9% | (805) 643-3330 |
| 40 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 160 | $195,275 | $1,220 | premium | 3.7% | — |
| 41 | VASCULAR AND THORACIC ASSOCIATES OF LOS ANGELES | LYNWOOD | CA | VASCULAR SURGERY | 2 | 159 | $286,130 | $1,800 | premium | 1.8% | (562) 698-0271 |
| 42 | NG MEDICAL CENTER LLC | MERRILLVILLE | IN | DIAGNOSTIC RADIOLOGY | 3 | 153 | $397,800 | $2,600 | premium | 22.8% | — |
| 43 | OREGON VASCULAR SPECIALISTS LLC | BEND | OR | VASCULAR SURGERY | 12 | 153 | $374,594 | $2,448 | premium | 43.0% | (541) 313-8111 |
| 44 | PACIFIC VASCUCARE, INC. | LOS ANGELES | CA | VASCULAR SURGERY | 4 | 150 | $406,950 | $2,713 | premium | 1.7% | (213) 201-0850 |
| 45 | CARDIOTHORACIC AND VASCULAR SURGICAL ASSOCIATES PA | JACKSONVILLE | FL | PHYSICIAN ASSISTANT | 89 | 139 | $218,008 | $1,568 | premium | 2.6% | (904) 398-3888 |
| 46 | VASCULAR SPECIALISTS LLC | TINLEY PARK | IL | VASCULAR SURGERY | 6 | 139 | $525,559 | $3,781 | premium | 10.2% | 8158244406128 |
| 47 | VASCULAR HEALTH LLC | FREEHOLD | NJ | NURSE PRACTITIONER | 10 | 134 | $302,495 | $2,257 | premium | 3.7% | (732) 952-5353 |
| 48 | POLYXENE GAZETAS KOKINOS MD PC | CAMPBELL | CA | VASCULAR SURGERY | 5 | 133 | $465,500 | $3,500 | premium | 1.5% | (408) 376-3626 |
| 49 | SOUTHERN PAIN AND REGENERATIVE MEDICINE PC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 5 | 132 | $337,040 | $2,553 | premium | 9.0% | (901) 350-0678 |
| 50 | VASCULAR INSTITUTE OF CHATTANOOGA, PLLC | CHATTANOOGA | TN | NURSE PRACTITIONER | 19 | 132 | $337,040 | $2,553 | premium | 9.0% | (423) 602-2750 |
| 51 | HARBOR VIEW MEDICAL SERVICES PC | PORT JEFFERSON | NY | NURSE PRACTITIONER | 58 | 128 | $453,120 | $3,540 | premium | 3.0% | (631) 686-2565 |
| 52 | SURGICAL ASSOCIATES CHARTERED | CAMP SPRINGS | MD | GENERAL SURGERY | 8 | 126 | $368,550 | $2,925 | premium | 3.9% | (240) 427-1630 |
| 53 | NORTH COAST SURGICAL SPECIALISTS | EUREKA | CA | GENERAL SURGERY | 2 | 125 | $28,125 | $225 | premium | 1.4% | (707) 445-3674 |
| 54 | TEXAS HEALTH CARE PLLC | FORT WORTH | TX | NURSE PRACTITIONER | 364 | 124 | $394,196 | $3,179 | premium | 2.8% | (817) 920-0484 |
| 55 | COMMUNITY CARE NETWORK INC | MUNSTER | IN | NURSE PRACTITIONER | 379 | 124 | $22,320 | $180 | premium | 18.5% | (219) 836-4563 |
| 56 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 123 | $63,837 | $519 | premium | 2.8% | (214) 633-5555 |
| 57 | WALLACE G GOSNEY MD AND GILBERT R TURNER MD PTRS | UPLAND | CA | GENERAL SURGERY | 3 | 121 | $397,380 | $3,284 | premium | 1.4% | (909) 920-0525 |
| 58 | VASCULAR HEALTH CLINICS PLLC | MIDLAND | MI | VASCULAR SURGERY | 4 | 121 | $313,511 | $2,591 | premium | 5.8% | (989) 254-6427 |
| 59 | CENTER FOR VASCULAR MEDICINE LLC | GREENBELT | MD | INTERNAL MEDICINE | 9 | 116 | $375,376 | $3,236 | premium | 3.6% | (301) 982-2000 |
| 60 | ARTEMIS MEDICAL CENTER INC | MONTEBELLO | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 110 | $148,500 | $1,350 | premium | 1.2% | (626) 316-7776 |
| 61 | RYAN K ANDERSON D P M P C | BOUNTIFUL | UT | PODIATRY | 51 | 109 | $239,800 | $2,200 | premium | 45.8% | (801) 292-4425 |
| 62 | SESHADRI RAJU, M.D., PA. | JACKSON | MS | NURSE PRACTITIONER | 9 | 109 | $308,137 | $2,827 | premium | 31.8% | (601) 939-4230 |
| 63 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 108 | $407,918 | $3,777 | premium | 1.2% | — |
| 64 | STOCKTON CARDIOLOGY MEDICAL GROUP COMPLETE HEART CARE INC | STOCKTON | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 14 | 108 | $14,580 | $135 | premium | 1.2% | — |
| 65 | COMMUNITY CARE NETWORK INC | MUNSTER | IL | NURSE PRACTITIONER | 379 | 107 | $19,260 | $180 | premium | 7.8% | (219) 836-4563 |
| 66 | MANHATTAN MEDICAL GROUP LLC | MANHATTAN | KS | NURSE PRACTITIONER | 15 | 104 | $95,640 | $920 | premium | 39.0% | (785) 539-4644 |
| 67 | CAROLINAS PHYSICIANS NETWORK INC | CHARLOTTE | NC | PHYSICIAN ASSISTANT | 2360 | 101 | $354,409 | $3,509 | premium | 7.5% | (704) 667-1000 |
| 68 | SILVER SPRING MEDICAL GROUP LLC | BOWIE | DC | INTERNAL MEDICINE | 2 | 100 | $160,000 | $1,600 | premium | 28.4% | (301) 262-1087 |
| 69 | UNIVERSITY OF MARYLAND SURGICAL ASSOCIATES PA | BALTIMORE | MD | GENERAL SURGERY | 101 | 100 | $431,312 | $4,313 | premium | 3.1% | (410) 328-5191 |
| 70 | DRAGHA LLC | SCOTTSDALE | AZ | HOSPITALIST | 3 | 100 | $242,925 | $2,429 | premium | 7.5% | (480) 750-8130 |
| 71 | INSTITUTE OF RESTORATIVE MEDICINE | JONESBORO | GA | INTERVENTIONAL CARDIOLOGY | 2 | 96 | $309,600 | $3,225 | premium | 6.7% | (770) 525-2384 |
| 72 | NEW YORK VASCULAR GROUP PLLC | CORNWALL | NY | VASCULAR SURGERY | 3 | 96 | $576,000 | $6,000 | premium | 2.3% | (203) 210-6340 |
| 73 | PALM ACCESS LLC | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 5 | 96 | $120,707 | $1,257 | premium | 1.8% | (954) 315-2000 |
| 74 | GOMELB VASCULAR LLC | SAINT LOUIS | MO | INTERVENTIONAL RADIOLOGY | 2 | 95 | $269,644 | $2,838 | premium | 23.0% | (314) 255-2204 |
| 75 | EAST TEXAS SURGICAL ASSOCIATES, PA | CORPUS CHRISTI | TX | NURSE PRACTITIONER | 5 | 94 | $278,052 | $2,958 | premium | 2.1% | (361) 882-4000 |
| 76 | CARDIOVASCULAR SOLUTIONS OF CENTRAL MS, PA | CLEVELAND | MS | INTERVENTIONAL CARDIOLOGY | 2 | 93 | $292,020 | $3,140 | premium | 27.1% | (888) 757-0838 |
| 77 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 93 | $186,000 | $2,000 | premium | 1.0% | (760) 340-3911 |
| 78 | WASHINGTON CARDIOVASCULAR INSTITUTE, LLC | TAKOMA PARK | TX | NURSE PRACTITIONER | 17 | 92 | $225,860 | $2,455 | premium | 2.1% | (301) 891-2500 |
| 79 | CARDIOVASCULAR ASSOCIATES OF THE DELAWARE VALLEY,P A | HADDON HEIGHTS | NJ | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 94 | 91 | $218,400 | $2,400 | premium | 2.5% | (856) 546-3003 |
| 80 | CARIENT HEART AND VASCULAR, LLC | MANASSAS | VA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 26 | 89 | $377,004 | $4,236 | premium | 6.5% | 57158117712611 |
| 81 | MINIMALLY INVASIVE SURGICAL SOLUTIONS MEDICAL CORPORATION | SAN JOSE | CA | INTERVENTIONAL RADIOLOGY | 5 | 89 | $448,565 | $5,040 | premium | 1.0% | (408) 918-0405 |
| 82 | PIEDMONT CARDIOLOGY OF ATLANTA, LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 477 | 89 | $28,836 | $324 | premium | 6.2% | (404) 605-5000 |
| 83 | ORLANDO HEALTH MEDICAL GROUP INC | ORLANDO | FL | PHYSICIAN ASSISTANT | 2145 | 88 | $244,200 | $2,775 | premium | 1.7% | (407) 896-1100 |
| 84 | SPEARMAN MD INC | ARROYO GRANDE | CA | DIAGNOSTIC RADIOLOGY | 2 | 88 | $188,320 | $2,140 | premium | 1.0% | (805) 473-8346 |
| 85 | POTTSTOWN CLINIC COMPANY LLC | POTTSTOWN | PA | EMERGENCY MEDICINE | 116 | 85 | $27,200 | $320 | premium | 13.1% | (610) 327-7000 |
| 86 | KANSAS CITY VASCULAR AND GENERAL SURGERY GROUP LLC | OVERLAND PARK | KS | NURSE PRACTITIONER | 22 | 84 | $24,456 | $291 | premium | 31.5% | (913) 754-2800 |
| 87 | BRYN MAWR MEDICAL SPECIALISTS ASSOCIATION | BRYN MAWR | PA | NURSE PRACTITIONER | 134 | 83 | $12,450 | $150 | premium | 12.8% | (610) 527-3800 |
| 88 | HMDOD LLC | EL DORADO | AR | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 6 | 83 | $140,490 | $1,693 | premium | 19.8% | (870) 875-1481 |
| 89 | ASHCHI HEART AND VASCULAR CENTER PA | JACKSONVILLE | TX | INTERVENTIONAL CARDIOLOGY | 9 | 83 | $332,830 | $4,010 | premium | 1.9% | (904) 222-6656 |
| 90 | HAMID SATTAR MD PC | SOUTHFIELD | MI | NURSE PRACTITIONER | 9 | 81 | $193,104 | $2,384 | premium | 3.9% | (248) 262-7120 |
| 91 | VASCULAR WELLNESS INSTITUTE, LLC. | BRADENTON | FL | VASCULAR SURGERY | 2 | 80 | $38,400 | $480 | premium | 1.5% | (941) 795-6370 |
| 92 | ADVANCED HEART AND VASCULAR OF CENTRAL JERSEY | COLTS NECK | NJ | INTERVENTIONAL CARDIOLOGY | 3 | 79 | $197,500 | $2,500 | premium | 2.2% | (732) 487-3636 |
| 93 | CONSULTANTS IN CARDIOLOGY AND ELECTROPHYSIOLOLGY LLC | EVERGREEN PARK | IL | NURSE PRACTITIONER | 21 | 78 | $340,860 | $4,370 | premium | 5.7% | (708) 346-5562 |
| 94 | AMPUTATION PREVENTION CENTER OF NORTH CAROLINA LLC | CARY | NC | NURSE PRACTITIONER | 13 | 78 | $264,657 | $3,393 | premium | 5.8% | (919) 897-5999 |
| 95 | CONCORD MEDICAL GROUP PLLC | DERIDDER | TX | FAMILY PRACTICE | 209 | 77 | $176,526 | $2,293 | premium | 1.8% | (337) 462-7100 |
| 96 | ENDOVASCULAR CONSULTANTS OF COLORADO PC | LONE TREE | CO | NURSE PRACTITIONER | 5 | 76 | $281,960 | $3,710 | premium | 23.0% | (720) 668-8818 |
| 97 | EL PASO CARDIOLOGY ASSOCIATES, P.A. | EL PASO | TX | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 21 | 75 | $295,970 | $3,946 | premium | 1.7% | (915) 532-6767 |
| 98 | FAIRBANKS MEMORIAL CARDIOLOGY CENTER LLC | FAIRBANKS | WA | PHYSICIAN ASSISTANT | 26 | 74 | $735,690 | $9,942 | premium | 31.2% | (907) 458-6450 |
| 99 | CONNECTICUT VASCULAR SURGICAL ASSOCIATES PC | SHELTON | CT | VASCULAR SURGERY | 5 | 73 | $465,156 | $6,372 | premium | 5.2% | 2039227870104 |
| 100 | VASCULAR SURGICAL ASSOCIATES, PC | MARIETTA | GA | PHYSICIAN ASSISTANT | 25 | 73 | $209,385 | $2,868 | premium | 5.1% | (770) 423-0595 |
Showing the top 100 of 406 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 →