76641 — Complete ultrasound scan of 1 breast
177,257 observed fee-for-service (48%) · ~193,568 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 | 76641 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 12,769 | $7,436,099 | $582 | premium | 14.8% | (212) 263-9700 |
| 2 | MORI BEAN AND BROOKS INC | ORANGE PARK | FL | DIAGNOSTIC RADIOLOGY | 947 | 5,653 | $3,216,769 | $569 | premium | 9.9% | (904) 399-5550 |
| 3 | METHODIST RADIOLOGY ASSOCIATES, PLLC | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 15 | 3,549 | $1,215,489 | $342 | premium | 13.4% | (281) 737-1900 |
| 4 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 3,302 | $1,490,637 | $451 | premium | 6.9% | (858) 455-9100 |
| 5 | PHYSICIANS REFERRAL SERVICE | HOUSTON | TX | NURSE PRACTITIONER | 2696 | 3,032 | $1,633,116 | $539 | premium | 11.5% | (713) 592-5433 |
| 6 | ANCILLARY SERVICES OF PRACTICE ASSOCIATES PA | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 97 | 3,000 | $767,220 | $256 | premium | 9.5% | (973) 971-6866 |
| 7 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 2,780 | $1,194,863 | $430 | premium | 3.2% | (914) 241-1050 |
| 8 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 2,691 | $953,071 | $354 | premium | 3.1% | (631) 225-7200 |
| 9 | LEBOVIC SCHWIMER AND GOLDBERG MEDICAL GROUP | BEVERLY HILLS | CA | DIAGNOSTIC RADIOLOGY | 3 | 2,115 | $594,790 | $281 | premium | 4.4% | (310) 394-2761 |
| 10 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 2,083 | $915,951 | $440 | premium | 3.7% | (954) 659-5000 |
| 11 | FPA HOSPITAL BASED | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 427 | 2,009 | $1,263,900 | $629 | premium | 2.3% | (212) 252-6004 |
| 12 | COMMUNITY HOSPITAL OF THE MONTEREY PENINSULA | MONTEREY | CA | EMERGENCY MEDICINE | 141 | 1,972 | $354,504 | $180 | premium | 4.1% | (831) 624-5311 |
| 13 | WOMEN CENTER FOR RADIOLOGY | ORLANDO | FL | DIAGNOSTIC RADIOLOGY | 5 | 1,954 | $553,800 | $283 | premium | 3.4% | (407) 841-0822 |
| 14 | BREAST CARE SPECIALISTS | ATLANTA | GA | GENERAL SURGERY | 12 | 1,861 | $715,930 | $385 | premium | 21.3% | 4042558086208 |
| 15 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 1,732 | $941,922 | $544 | premium | 5.5% | (908) 273-4300 |
| 16 | RADIOLOGY OF MSMC, LLC | MIAMI | FL | DIAGNOSTIC RADIOLOGY | 23 | 1,646 | $611,601 | $372 | premium | 2.9% | (305) 674-3905 |
| 17 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 1,638 | $277,172 | $169 | premium | 3.4% | (626) 256-4673 |
| 18 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 244 | 1,518 | $585,665 | $386 | premium | 1.8% | (212) 772-3111 |
| 19 | SOUTH FLORIDA MEDICAL IMAGING PA | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 44 | 1,415 | $572,682 | $405 | premium | 2.5% | (954) 267-6650 |
| 20 | ENGLEWOOD RADIOLOGIC GROUP P A | ENGLEWOOD | NJ | DIAGNOSTIC RADIOLOGY | 125 | 1,351 | $252,546 | $187 | premium | 4.3% | (201) 894-3480 |
| 21 | WOMENS IMAGING CENTER | DENVER | CO | DIAGNOSTIC RADIOLOGY | 3 | 1,259 | $577,200 | $458 | premium | 44.4% | (303) 321-2273 |
| 22 | SINGLETON ASSOCIATES PA | HOUSTON | TX | DIAGNOSTIC RADIOLOGY | 769 | 1,239 | $846,384 | $683 | premium | 4.7% | (855) 504-4544 |
| 23 | SMI IMAGING LLC | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 364 | 1,223 | $998,026 | $816 | premium | 14.0% | (480) 753-6161 |
| 24 | SOUTHWEST DIAGNOSTIC IMAGING LLC | SCOTTSDALE | AZ | DIAGNOSTIC RADIOLOGY | 124 | 1,205 | $817,040 | $678 | premium | 13.8% | (480) 425-5000 |
| 25 | FLORIDA WOMAN CARE LLC | ORLANDO | FL | OBSTETRICS/GYNECOLOGY | 604 | 1,170 | $544,128 | $465 | premium | 2.1% | (407) 857-2502 |
| 26 | VITALMD GROUP HOLDING LLC | MIAMI | FL | OBSTETRICS/GYNECOLOGY | 531 | 1,142 | $571,000 | $500 | premium | 2.0% | (305) 273-4641 |
| 27 | ST FRANCIS CARDIAC PREVENTION SERVICES PC | GREENVALE | NY | DIAGNOSTIC RADIOLOGY | 61 | 1,096 | $200,640 | $183 | premium | 1.3% | (516) 325-7400 |
| 28 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 1,080 | $674,520 | $625 | premium | 27.0% | (702) 732-6000 |
| 29 | NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC | SMITHTOWN | NY | NURSE PRACTITIONER | 462 | 1,060 | $474,838 | $448 | premium | 1.2% | (631) 751-3000 |
| 30 | NEW YORK UNIVERSITY | NEW YORK | NJ | DIAGNOSTIC RADIOLOGY | 5704 | 1,014 | $574,950 | $567 | premium | 3.2% | (212) 263-9700 |
| 31 | RWJBH OBSERVATION ASSOCIATES LLC | SOMERVILLE | NJ | PHYSICIAN ASSISTANT | 937 | 962 | $943,016 | $980 | premium | 3.0% | (908) 685-2200 |
| 32 | WESTCHESTER MEDICAL GROUP, P.C | WHITE PLAINS | NY | INTERNAL MEDICINE | 409 | 936 | $546,623 | $584 | premium | 1.1% | (914) 682-0700 |
| 33 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 867 | $504,051 | $581 | premium | 1.5% | (305) 689-5437 |
| 34 | NEW YORK UNIVERSITY | NEW YORK | MA | DIAGNOSTIC RADIOLOGY | 5704 | 835 | $486,339 | $582 | premium | 21.3% | (212) 263-9700 |
| 35 | BREAST IMAGING PARTNERS, PC | TEANECK | NY | DIAGNOSTIC RADIOLOGY | 5 | 829 | $112,100 | $135 | premium | 1.0% | (201) 833-7100 |
| 36 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 825 | $334,485 | $405 | premium | 1.7% | — |
| 37 | STONY BROOK RADIOLOGY, UNIVERSITY FACULTY PRACTICE CORPORATION | STONY BROOK | NY | DIAGNOSTIC RADIOLOGY | 59 | 796 | $337,084 | $423 | premium | 0.9% | (631) 638-2121 |
| 38 | GREENWICH RADIOLOGICAL GROUP PC | GREENWICH | NY | DIAGNOSTIC RADIOLOGY | 12 | 795 | $57,245 | $72 | premium | 0.9% | (203) 869-6220 |
| 39 | WINCHESTER RADIOLOGISTS PC | WINCHESTER | VA | DIAGNOSTIC RADIOLOGY | 79 | 794 | $222,357 | $280 | premium | 16.6% | (540) 686-1600 |
| 40 | GREENWICH RADIOLOGICAL GROUP PC | GREENWICH | CT | DIAGNOSTIC RADIOLOGY | 12 | 781 | $56,242 | $72 | premium | 7.2% | (203) 869-6220 |
| 41 | DIAGNOSTIC CENTERS OF AMERICA, LLP | BOYNTON BEACH | FL | DIAGNOSTIC RADIOLOGY | 103 | 775 | $536,434 | $692 | premium | 1.4% | (561) 496-6935 |
| 42 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 769 | $214,050 | $278 | premium | 0.9% | (212) 305-8559 |
| 43 | WINDSONG RADIOLOGY GROUP P C | WILLIAMSVILLE | NY | DIAGNOSTIC RADIOLOGY | 23 | 749 | $670,445 | $895 | premium | 0.9% | (716) 631-2500 |
| 44 | MONTCLAIR BREAST CENTER PC | MONTCLAIR | NJ | DIAGNOSTIC RADIOLOGY | 13 | 744 | $129,181 | $174 | premium | 2.4% | (973) 509-1818 |
| 45 | KAMILIA F KOZLOWSKI | KNOXVILLE | TN | DIAGNOSTIC RADIOLOGY | 11 | 742 | $445,800 | $601 | premium | 10.0% | (865) 584-0291 |
| 46 | ELIZABETH WENDE BREAST CARE LLC | ROCHESTER | NY | DIAGNOSTIC RADIOLOGY | 7 | 737 | $183,015 | $248 | premium | 0.9% | (585) 442-2190 |
| 47 | BREAST CENTER OF NAPLES PLLC | NAPLES | FL | DIAGNOSTIC RADIOLOGY | 2 | 733 | $226,033 | $308 | premium | 1.3% | (239) 238-1210 |
| 48 | THE NEW JERSEY IMAGING NETWORK, LLC | CEDAR KNOLLS | NJ | DIAGNOSTIC RADIOLOGY | 71 | 727 | $276,190 | $380 | premium | 2.3% | (973) 695-1290 |
| 49 | MSKCC RADIOLOGY GROUP | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 199 | 712 | $342,132 | $481 | premium | 0.8% | (646) 888-5300 |
| 50 | CALIFORNIA MANAGED IMAGING MEDICAL GROUP INC | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 64 | 708 | $638,576 | $902 | premium | 1.5% | (800) 841-4236 |
| 51 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 686 | $379,854 | $554 | premium | 8.8% | (630) 469-9200 |
| 52 | CENTRA MEDICAL GROUP LLC | LYNCHBURG | VA | NURSE PRACTITIONER | 714 | 671 | $63,581 | $95 | premium | 14.0% | (434) 947-3033 |
| 53 | COLUMBUS DIAGNOSTIC CENTER INC | COLUMBUS | GA | DIAGNOSTIC RADIOLOGY | 25 | 663 | $47,736 | $72 | premium | 7.6% | (706) 322-3000 |
| 54 | RADIOLOGY CONSULTANTS OF IOWA PLC | CEDAR RAPIDS | IA | DIAGNOSTIC RADIOLOGY | 72 | 654 | $133,528 | $204 | premium | 35.8% | (319) 364-0121 |
| 55 | BAY RADIOLOGY WOMENS IMAGING CENTER LLC | PANAMA CITY | FL | DIAGNOSTIC RADIOLOGY | 3 | 652 | $708,566 | $1,087 | premium | 1.1% | (850) 763-2451 |
| 56 | RHODE ISLAND MEDICAL IMAGING INC | EAST PROVIDENCE | RI | DIAGNOSTIC RADIOLOGY | 109 | 651 | $300,842 | $462 | premium | 45.0% | (401) 626-3900 |
| 57 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 647 | $158,284 | $245 | premium | 6.0% | (203) 688-4242 |
| 58 | JOHN T MATHER MEMORIAL HOSPITAL | PORT JEFFERSON | NY | NURSE PRACTITIONER | 178 | 646 | $214,385 | $332 | premium | 0.7% | (631) 473-1320 |
| 59 | THE NEW JERSEY IMAGING NETWORK, LLC | CEDAR KNOLLS | NY | DIAGNOSTIC RADIOLOGY | 71 | 635 | $221,375 | $349 | premium | 0.7% | (973) 695-1290 |
| 60 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 630 | $446,852 | $709 | premium | 1.3% | (916) 983-7476 |
| 61 | NORTH BROWARD RADIOLOGISTS, P.A. | FORT LAUDERDALE | FL | DIAGNOSTIC RADIOLOGY | 23 | 602 | $161,100 | $268 | premium | 1.1% | (954) 262-1140 |
| 62 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 598 | $384,854 | $644 | premium | 0.7% | — |
| 63 | UC REGENTS | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 99 | 591 | $361,701 | $612 | premium | 1.2% | (714) 456-7004 |
| 64 | ARKANSAS HEALTH GROUP | LITTLE ROCK | AR | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 666 | 569 | $153,576 | $270 | premium | 25.1% | (501) 202-2093 |
| 65 | WEILL CORNELL IMAGING AT NEW YORK PRESBYTERIAN | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 146 | 566 | $1,082,282 | $1,912 | premium | 0.7% | (212) 746-6000 |
| 66 | SIMONMED RENO PLLC | RENO | NV | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 18 | 564 | $486,134 | $862 | premium | 14.1% | (775) 323-5083 |
| 67 | WOMENS DIAGNOSTIC GROUP PLLC | MEMPHIS | TN | DIAGNOSTIC RADIOLOGY | 5 | 559 | $124,230 | $222 | premium | 7.5% | (901) 226-0810 |
| 68 | MEDICAL ASSOCIATES OF NORTHWEST ARKANSAS, PA | FAYETTEVILLE | AR | FAMILY PRACTICE | 106 | 559 | $223,536 | $400 | premium | 24.7% | (479) 521-0200 |
| 69 | MURFREESBORO MEDICAL CLINIC, P.A. | MURFREESBORO | TN | NURSE PRACTITIONER | 172 | 537 | $173,082 | $322 | premium | 7.2% | (615) 867-7925 |
| 70 | BREAST CENTER OF ACADIANA, A PROFESSIONAL MEDICAL CORPORATION | LAFAYETTE | LA | DIAGNOSTIC RADIOLOGY | 4 | 536 | $334,692 | $624 | premium | 16.4% | (832) 216-8220 |
| 71 | PRINCETON RADIOLOGY ASSOCIATES PA | PRINCETON | NJ | DIAGNOSTIC RADIOLOGY | 54 | 532 | $293,650 | $552 | premium | 1.7% | 73282155631242 |
| 72 | EAST RIVER MEDICAL IMAGING PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 10 | 531 | $519,000 | $977 | premium | 0.6% | (212) 288-7615 |
| 73 | PRO RADIOLOGY LLC | ATLANTA | GA | DIAGNOSTIC RADIOLOGY | 99 | 529 | $277,729 | $525 | premium | 6.1% | (678) 278-8800 |
| 74 | IMAGING FOR WOMEN LLC | KANSAS CITY | MO | DIAGNOSTIC RADIOLOGY | 3 | 522 | $142,045 | $272 | premium | 19.2% | (816) 453-2700 |
| 75 | RATAKONDA,M.D., P.A. | MORRISTOWN | NJ | DIAGNOSTIC RADIOLOGY | 2 | 520 | $247,250 | $475 | premium | 1.6% | (973) 538-8181 |
| 76 | BEN-ORA HANSEN AND VANESIAN IMAGING LTD | PHOENIX | AZ | DIAGNOSTIC RADIOLOGY | 7 | 515 | $122,570 | $238 | premium | 5.9% | (602) 234-2601 |
| 77 | ATLANTA BREAST CARE, PC | ATLANTA | GA | GENERAL SURGERY | 3 | 510 | $250,580 | $491 | premium | 5.8% | (404) 351-1002 |
| 78 | METHODIST RADIOLOGY ASSOCIATES, PLLC | HOUSTON | PA | DIAGNOSTIC RADIOLOGY | 15 | 506 | $161,200 | $319 | premium | 3.4% | (281) 737-1900 |
| 79 | ST JUDE RADIOLOGY MEDICAL GROUP INC | FULLERTON | CA | DIAGNOSTIC RADIOLOGY | 61 | 505 | $132,132 | $262 | premium | 1.1% | 71499230001805 |
| 80 | NEW YORK UNIVERSITY | NEW YORK | CA | DIAGNOSTIC RADIOLOGY | 5704 | 505 | $320,901 | $635 | premium | 1.1% | (212) 263-9700 |
| 81 | UCLA RADIOLOGY MEDICAL GROUP | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 191 | 502 | $348,824 | $695 | premium | 1.1% | (310) 301-6800 |
| 82 | JUPITER MEDICAL CENTER PHYSICIANS GROUP INC | JUPITER | NY | PHYSICIAN ASSISTANT | 147 | 502 | $188,298 | $375 | premium | 0.6% | (561) 747-2234 |
| 83 | COOPER UNIVERSITY RADIOLOGY PC | CAMDEN | NJ | DIAGNOSTIC RADIOLOGY | 68 | 501 | $175,245 | $350 | premium | 1.6% | — |
| 84 | DANBURY RADIOLOGICAL ASSOCIATES, PC | DANBURY | CT | DIAGNOSTIC RADIOLOGY | 46 | 493 | $223,713 | $454 | premium | 4.5% | (203) 739-7532 |
| 85 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 491 | $62,136 | $127 | premium | 32.8% | (913) 588-1227 |
| 86 | JOHN T MATHER MEMORIAL HOSPITAL | PORT JEFFERSON | MA | NURSE PRACTITIONER | 178 | 485 | $159,576 | $329 | premium | 12.4% | (631) 473-1320 |
| 87 | BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES | TROY | MI | DIAGNOSTIC RADIOLOGY | 583 | 483 | $129,597 | $268 | premium | 16.0% | (248) 964-1187 |
| 88 | METHODIST ASSOCIATES IN HEALTHCARE, INC | PHILADELPHIA | PA | DIAGNOSTIC RADIOLOGY | 398 | 470 | $142,532 | $303 | premium | 3.1% | (215) 955-6161 |
| 89 | BAY IMAGING CONSULTANTS MEDICAL GROUP INC | WALNUT CREEK | CA | DIAGNOSTIC RADIOLOGY | 134 | 463 | $56,023 | $121 | premium | 1.0% | (925) 947-5320 |
| 90 | MERCED MRI MEDICAL GROUP | LOS BANOS | CA | DIAGNOSTIC RADIOLOGY | 4 | 456 | $145,920 | $320 | premium | 1.0% | (209) 384-4250 |
| 91 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 455 | $160,385 | $352 | premium | 18.6% | (888) 972-9700 |
| 92 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 453 | $124,750 | $275 | premium | 3.0% | — |
| 93 | RYE RADIOLOGY PLLC | RYE BROOK | GA | DIAGNOSTIC RADIOLOGY | 3 | 452 | $215,770 | $477 | premium | 5.2% | (914) 253-9200 |
| 94 | NEW YORK MEDICAL IMAGING ASSOCIATES MD PC | NEW YORK | NV | DIAGNOSTIC RADIOLOGY | 7 | 450 | $152,425 | $339 | premium | 11.3% | (212) 518-2901 |
| 95 | DESTIN REGIONAL IMAGING CENTER LLC | MIRAMAR BEACH | FL | DIAGNOSTIC RADIOLOGY | 3 | 447 | $87,882 | $197 | premium | 0.8% | (850) 278-3556 |
| 96 | STATE OF FRANKLIN HEALTHCARE ASSOCIATES, PLLC | JOHNSON CITY | TN | NURSE PRACTITIONER | 279 | 443 | $154,242 | $348 | premium | 5.9% | (423) 926-8181 |
| 97 | UNIVERSITY DIAGNOSTIC MEDICAL IMAGING PC | BRONX | NY | DIAGNOSTIC RADIOLOGY | 7 | 442 | $110,375 | $250 | premium | 0.5% | (718) 931-5620 |
| 98 | ETMC PHYSICIAN GROUP, INC. | TYLER | TX | NURSE PRACTITIONER | 373 | 437 | $87,708 | $201 | premium | 1.7% | (903) 590-5611 |
| 99 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 433 | $90,485 | $209 | premium | 1.4% | (732) 362-3663 |
| 100 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 433 | $115,592 | $267 | premium | 37.1% | (405) 271-4311 |
Showing the top 100 of 584 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 →