17311 — Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks
709,138 observed fee-for-service (49%) · ~741,707 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 | 17311 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AQUA DERMATOLOGY OF FLORIDA, PA | NAPLES | FL | PHYSICIAN ASSISTANT | 184 | 8,598 | $12,737,285 | $1,481 | premium | 7.3% | (239) 596-9075 |
| 2 | LEAVITT MEDICAL ASSOCIATES OF FLORIDA INC | THE VILLAGES | FL | PHYSICIAN ASSISTANT | 192 | 7,402 | $18,038,674 | $2,437 | premium | 6.3% | (352) 753-2812 |
| 3 | OLIVER STREET 5.01(A) INC | TYLER | TX | PHYSICIAN ASSISTANT | 168 | 6,562 | $15,041,563 | $2,292 | premium | 10.7% | (903) 534-6200 |
| 4 | SKIN SURGERY CENTER PA | WINSTON SALEM | NC | PHYSICIAN ASSISTANT | 73 | 5,525 | $10,565,095 | $1,912 | premium | 15.0% | (336) 724-2434 |
| 5 | GOLDEN STATE DERMATOLOGY ASSOCIATES, INC. | WALNUT CREEK | CA | DERMATOLOGY | 118 | 5,212 | $8,417,011 | $1,615 | premium | 5.5% | (925) 932-7704 |
| 6 | SUNCOAST SKIN SOLUTIONS | LUTZ | FL | DERMATOLOGY | 90 | 4,952 | $6,265,378 | $1,265 | premium | 4.2% | (813) 321-1786 |
| 7 | CENTER FOR DERMATOLOGY PLLC | SCOTTSDALE | AZ | PHYSICIAN ASSISTANT | 67 | 4,709 | $7,138,844 | $1,516 | premium | 13.6% | (480) 905-8485 |
| 8 | SKIN SURGERY SPECIALISTS OF ARKANSAS | LITTLE ROCK | AR | DERMATOLOGY | 2 | 4,347 | $6,411,825 | $1,475 | premium | 30.4% | (501) 404-9646 |
| 9 | AQUA DERMATOLOGY OF ALABAMA PC | VESTAVIA HLS | AL | PHYSICIAN ASSISTANT | 39 | 4,296 | $5,232,470 | $1,218 | premium | 27.8% | — |
| 10 | J ROBERT WEST MD INC | LAS VEGAS | CA | DERMATOLOGY | 140 | 4,061 | $6,154,671 | $1,516 | premium | 4.2% | (702) 258-1001 |
| 11 | CSI MEDICAL GROUP | SARATOGA | CA | DERMATOLOGY | 97 | 3,791 | $5,021,466 | $1,325 | premium | 4.0% | (408) 253-4407 |
| 12 | FOREFRONT DERMATOLOGY SC | PENSACOLA | FL | PHYSICIAN ASSISTANT | 639 | 3,770 | $9,642,793 | $2,558 | premium | 3.2% | (800) 243-7546 |
| 13 | DERMATOLOGISTS OF SOUTHWESTERN OHIO, LLC | DAYTON | OH | PHYSICIAN ASSISTANT | 115 | 3,529 | $4,030,859 | $1,142 | premium | 13.3% | (937) 433-7536 |
| 14 | SCHWEIGER DERMATOLOGY PC | HOBOKEN | NJ | PHYSICIAN ASSISTANT | 181 | 3,217 | $5,823,450 | $1,810 | premium | 15.5% | (212) 283-3000 |
| 15 | SOUTHWEST SKIN SPECIALISTS LLC | SCOTTSDALE | AZ | DERMATOLOGY | 50 | 3,166 | $7,310,294 | $2,309 | premium | 9.1% | (602) 494-1817 |
| 16 | NORTHEAST DERMATOLOGY ASSOCIATES PC | NORTH ANDOVER | MA | PHYSICIAN ASSISTANT | 82 | 2,962 | $8,080,059 | $2,728 | premium | 11.9% | (978) 691-5690 |
| 17 | ARKANSAS DERMATOLOGY PLLC | HEBER SPRINGS | AR | PHYSICIAN ASSISTANT | 20 | 2,962 | $2,270,759 | $767 | premium | 20.7% | (501) 362-3100 |
| 18 | PIEDMONT PLASTIC SURGERY AND DERMATOLOGY PA | GASTONIA | NC | DERMATOLOGY | 56 | 2,849 | $4,539,916 | $1,594 | premium | 7.7% | (704) 866-0106 |
| 19 | HEARTLAND DERMATOLOGY AND SKIN CANCER CENTER, PA | WICHITA | KS | PHYSICIAN ASSISTANT | 29 | 2,835 | $3,106,530 | $1,096 | premium | 22.1% | — |
| 20 | PENNSYLVANIA DERMATOLOGY PARTNERS INC | READING | PA | DERMATOLOGY | 75 | 2,834 | $2,677,436 | $945 | premium | 7.5% | (610) 288-2908 |
| 21 | DERMATOLOGY ASSOCIATES OF TALLAHASSEE PA | TALLAHASSEE | FL | PHYSICIAN ASSISTANT | 39 | 2,830 | $4,434,024 | $1,567 | premium | 2.4% | (850) 877-4134 |
| 22 | CUMBERLAND SKIN SURGERY AND DERMATOLOGY | LEBANON | TN | PHYSICIAN ASSISTANT | 55 | 2,824 | $5,267,815 | $1,865 | premium | 12.1% | (615) 449-5771 |
| 23 | MEMPHIS DERMATOLOGY CLINIC PA | MEMPHIS | TN | DERMATOLOGY | 11 | 2,719 | $2,610,240 | $960 | premium | 11.7% | (901) 726-6655 |
| 24 | ANNE ARUNDEL DERMATOLOGY PA | ANNAPOLIS | MD | PHYSICIAN ASSISTANT | 124 | 2,662 | $2,945,563 | $1,107 | premium | 17.0% | (410) 263-5439 |
| 25 | SILVER FALLS DERMATOLOGY LLC | PORT ANGELES | WA | PHYSICIAN ASSISTANT | 98 | 2,662 | $4,535,438 | $1,704 | premium | 13.7% | (503) 362-8385 |
| 26 | AQUA DERMATOLOGY OF GEORGIA PC | MARIETTA | GA | PHYSICIAN ASSISTANT | 54 | 2,595 | $5,220,140 | $2,012 | premium | 8.5% | (770) 422-5557 |
| 27 | CARY SKIN CENTER PA | CARY | NC | PHYSICIAN ASSISTANT | 10 | 2,540 | $1,634,743 | $644 | premium | 6.9% | (919) 363-7546 |
| 28 | DERM SURGERY ASSOCIATES P.A. | BELLAIRE | TX | DERMATOLOGY | 22 | 2,532 | $3,038,400 | $1,200 | premium | 4.1% | 7137919966130 |
| 29 | PREMIER DERMATOLOGY, LLC | ENGLEWOOD | FL | DERMATOLOGY | 46 | 2,521 | $3,331,981 | $1,322 | premium | 2.1% | (941) 474-8811 |
| 30 | PDP OF TEXAS, PLLC | PLANO | TX | DERMATOLOGY | 60 | 2,497 | $3,785,452 | $1,516 | premium | 4.1% | (214) 987-3376 |
| 31 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 2,341 | $7,183,340 | $3,068 | premium | 2.4% | (415) 600-1020 |
| 32 | EPIPHANY DERMATOLOGY PA | WACO | TX | DERMATOLOGY | 106 | 2,297 | $4,499,162 | $1,959 | premium | 3.7% | (254) 537-1265 |
| 33 | GEORGIA DERMATOLOGY AND SKIN CANCER CENTER, LLC | MACON | GA | PHYSICIAN ASSISTANT | 52 | 2,263 | $1,499,367 | $663 | premium | 7.4% | (478) 745-8581 |
| 34 | ADVANCED DERMATOLOGY OF COLORADO PC | FORT COLLINS | CO | PHYSICIAN ASSISTANT | 64 | 2,248 | $5,478,376 | $2,437 | premium | 12.0% | (970) 484-3050 |
| 35 | ASSOCIATES IN DERMATOLOGY, PLLC | LOUISVILLE | KY | DERMATOLOGY | 37 | 2,225 | $3,464,884 | $1,557 | premium | 17.4% | (502) 583-1749 |
| 36 | DERMATOLOGY ASSOCIATES OF RICHMOND PC | RICHMOND | VA | DERMATOLOGY | 20 | 2,222 | $1,506,196 | $678 | premium | 7.4% | (804) 549-4040 |
| 37 | KNOXVILLE DERMATOLOGY GROUP PC | KNOXVILLE | TN | PHYSICIAN ASSISTANT | 29 | 2,109 | $1,968,033 | $933 | premium | 9.0% | (865) 690-9467 |
| 38 | PALM BEACH DERMATOLOGY | LAKE WORTH | FL | DERMATOLOGY | 19 | 2,108 | $1,960,440 | $930 | premium | 1.8% | (561) 969-7300 |
| 39 | WOODRUFF INSTITUTE LLC | NAPLES | FL | DERMATOLOGY | 22 | 2,097 | $1,503,842 | $717 | premium | 1.8% | 2395969337610 |
| 40 | OPTIMA DERMATOLOGY LLC | BOARDMAN | IN | DERMATOLOGY | 75 | 2,052 | $2,807,439 | $1,368 | premium | 12.6% | (330) 965-8760 |
| 41 | FOREFRONT DERMATOLOGY SC | PENSACOLA | WI | PHYSICIAN ASSISTANT | 639 | 2,046 | $5,993,368 | $2,929 | premium | 15.2% | (800) 243-7546 |
| 42 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 2,044 | $3,804,720 | $1,861 | premium | 5.4% | (215) 662-2777 |
| 43 | SOUTHERN DERMATOLOGY PA | RALEIGH | NC | PHYSICIAN ASSISTANT | 51 | 2,019 | $2,183,656 | $1,082 | premium | 5.5% | (919) 782-2152 |
| 44 | WAKE SKIN CANCER CENTER, PA | WAKE FOREST | NC | PHYSICIAN ASSISTANT | 8 | 2,017 | $3,232,140 | $1,602 | premium | 5.5% | (919) 436-4124 |
| 45 | DERMATOLOGY AND SKIN CANCER SPECIALISTS LLC | LEES SUMMIT | KS | PHYSICIAN ASSISTANT | 42 | 1,988 | $4,590,292 | $2,309 | premium | 15.5% | (816) 524-4747 |
| 46 | APEX DERMATOLOGY AND SKIN SURGERY CENTER, LLC | PAINESVILLE | OH | PHYSICIAN ASSISTANT | 51 | 1,963 | $2,507,856 | $1,278 | premium | 7.4% | (440) 352-7546 |
| 47 | ALLIANT DERMATOLOGY PA | THE VILLAGES | FL | PHYSICIAN ASSISTANT | 11 | 1,946 | $1,928,507 | $991 | premium | 1.6% | (352) 399-7295 |
| 48 | ZITELLI AND BRODLAND PC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 25 | 1,925 | $3,752,032 | $1,949 | premium | 5.1% | (412) 681-9400 |
| 49 | EASTERN DERMATOLOGY PA | ELIZABETH CITY | NC | DERMATOLOGY | 20 | 1,910 | $2,473,450 | $1,295 | premium | 5.2% | (252) 331-1780 |
| 50 | METRODERM, P.C. | ATLANTA | GA | PHYSICIAN ASSISTANT | 33 | 1,903 | $3,908,762 | $2,054 | premium | 6.2% | — |
| 51 | CAROLINA DERMATOLOGY GRP | COLUMBIA | SC | PHYSICIAN ASSISTANT | 24 | 1,887 | $3,170,160 | $1,680 | premium | 9.9% | (803) 771-7506 |
| 52 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 1,730 | $5,990,986 | $3,463 | premium | 6.1% | — |
| 53 | FOREFRONT DERMATOLOGY - PACIFIC, P.C. | THOUSAND OAKS | CA | DERMATOLOGY | 25 | 1,711 | $2,657,183 | $1,553 | premium | 1.8% | (805) 497-1694 |
| 54 | ADVANCED DERMATOLOGY OF SC PC | SPARTANBURG | SC | PHYSICIAN ASSISTANT | 35 | 1,699 | $4,140,463 | $2,437 | premium | 8.9% | (864) 574-0017 |
| 55 | WACCAMAW DERMATOLOGY LLC | MYRTLE BEACH | SC | NURSE PRACTITIONER | 26 | 1,635 | $2,078,097 | $1,271 | premium | 8.5% | (843) 449-0453 |
| 56 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 1,635 | $2,534,250 | $1,550 | premium | 16.6% | (801) 261-8346 |
| 57 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 1,626 | $4,037,376 | $2,483 | premium | 12.2% | (507) 284-2511 |
| 58 | ADVANCED DERMATOLOGY OF SOUTHEAST MISSOURI PC | CAPE GIRARDEAU | MO | NURSE PRACTITIONER | 9 | 1,624 | $1,778,280 | $1,095 | premium | 8.1% | (573) 335-7546 |
| 59 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 1,606 | $3,236,090 | $2,015 | premium | 6.0% | — |
| 60 | SKIN SPECIALISTS OF THE CAPITAL REGION, PLLC | ALBANY | NY | PHYSICIAN ASSISTANT | 12 | 1,599 | $1,485,208 | $929 | premium | 3.9% | (518) 452-1928 |
| 61 | MOUNTAIN STATE MEDICAL SPECIALTIES PLLC | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 37 | 1,598 | $2,022,077 | $1,265 | premium | 38.7% | (304) 554-0400 |
| 62 | OPTIMA DERMATOLOGY LLC | BOARDMAN | OH | DERMATOLOGY | 75 | 1,593 | $1,764,957 | $1,108 | premium | 6.0% | (330) 965-8760 |
| 63 | NEW ENGLAND DERMATOLOGY PC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 24 | 1,590 | $3,178,590 | $1,999 | premium | 6.4% | (413) 733-9600 |
| 64 | MATTHEW D BARROWS MD PA | MCKINNEY | TX | PHYSICIAN ASSISTANT | 23 | 1,573 | $3,072,251 | $1,953 | premium | 2.6% | (972) 390-9002 |
| 65 | MOUNTAIN WEST DERM - BLACKHART PLLC | RENO | NV | PHYSICIAN ASSISTANT | 105 | 1,567 | $2,196,689 | $1,402 | premium | 19.0% | (775) 324-0699 |
| 66 | ADVANCED DERMATOLOGY OF MICHIGAN PC | WARREN | MI | PHYSICIAN ASSISTANT | 38 | 1,538 | $3,748,106 | $2,437 | premium | 10.3% | (586) 759-5525 |
| 67 | PENINSULA DERMATOLOGY SKIN CANCER SURGERY CENTER, INC | NEWPORT NEWS | VA | DERMATOLOGY | 10 | 1,459 | $1,525,760 | $1,046 | premium | 4.8% | (757) 873-0161 |
| 68 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 1,456 | $2,303,392 | $1,582 | premium | 3.9% | (919) 684-8111 |
| 69 | MOUNTAIN WEST DERM - BLACKHART PLLC | RENO | WA | PHYSICIAN ASSISTANT | 105 | 1,456 | $2,012,949 | $1,383 | premium | 7.5% | (775) 324-0699 |
| 70 | MAY RIVER DERMATOLOGY | BLUFFTON | SC | PHYSICIAN ASSISTANT | 20 | 1,427 | $952,995 | $668 | premium | 7.5% | (843) 837-4400 |
| 71 | SKIN AND CANCER ASSOCIATES | AVENTURA | FL | DERMATOLOGY | 65 | 1,427 | $1,940,880 | $1,360 | premium | 1.2% | (305) 933-1151 |
| 72 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 1,416 | $3,554,160 | $2,510 | premium | 7.1% | (314) 747-3000 |
| 73 | SOUTH CAROLINA SKIN CANCER CENTER | GREENVILLE | SC | DERMATOLOGY | 3 | 1,414 | $1,696,800 | $1,200 | premium | 7.4% | (864) 288-1154 |
| 74 | GEISINGER CLINIC | DANVILLE | PA | PHYSICIAN ASSISTANT | 3426 | 1,411 | $2,079,045 | $1,473 | premium | 3.8% | (570) 271-6144 |
| 75 | PRECISION DERMATOLOGY AND SKIN SURGERY PA | ORANGE PARK | FL | PHYSICIAN ASSISTANT | 7 | 1,384 | $1,449,048 | $1,047 | premium | 1.2% | (904) 923-6647 |
| 76 | ACADEMIC ALLIANCE IN DERMATOLOGY INC | TAMPA | FL | PHYSICIAN ASSISTANT | 46 | 1,378 | $1,371,217 | $995 | premium | 1.2% | (813) 882-9986 |
| 77 | KANSAS MEDICAL CLINIC PA | TOPEKA | KS | PHYSICIAN ASSISTANT | 50 | 1,374 | $2,312,536 | $1,683 | premium | 10.7% | (785) 272-6860 |
| 78 | FOREFRONT DERMATOLOGY SC | PENSACOLA | IA | PHYSICIAN ASSISTANT | 639 | 1,358 | $3,978,003 | $2,929 | premium | 16.2% | (800) 243-7546 |
| 79 | ADA WEST DERMATOLOGY, P.C. | MERIDIAN | ID | PHYSICIAN ASSISTANT | 25 | 1,357 | $2,525,388 | $1,861 | premium | 24.8% | (208) 884-3376 |
| 80 | VALLEY SKIN SPECIALISTS | BLACKSBURG | VA | DERMATOLOGY | 18 | 1,356 | $1,377,992 | $1,016 | premium | 4.5% | (540) 951-3376 |
| 81 | DERMATOLOGY ASSOCIATES OF BAY COUNTY PA | PANAMA CITY | FL | PHYSICIAN ASSISTANT | 11 | 1,353 | $1,652,013 | $1,221 | premium | 1.1% | (850) 769-1668 |
| 82 | DERMATOLOGY ASSOCIATES LLC | GREENVILLE | SC | DERMATOLOGY | 18 | 1,348 | $2,587,920 | $1,920 | premium | 7.0% | (864) 271-7440 |
| 83 | SCHWEIGER DERMATOLOGY PLLC | NEW YORK | NY | PHYSICIAN ASSISTANT | 238 | 1,342 | $2,419,544 | $1,803 | premium | 3.3% | (212) 283-3000 |
| 84 | COASTAL SKIN SURGERY AND DERMATOLOGY, PL | MIRAMAR BEACH | FL | PHYSICIAN ASSISTANT | 15 | 1,342 | $1,552,018 | $1,156 | premium | 1.1% | (850) 654-3376 |
| 85 | VANGUARD MEDICAL SPECIALISTS, LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 23 | 1,335 | $1,890,333 | $1,416 | premium | 7.1% | (719) 355-1585 |
| 86 | DERMATOLOGY INC. | GREENWOOD | IN | DERMATOLOGY | 20 | 1,332 | $2,105,375 | $1,581 | premium | 8.1% | (317) 926-3739 |
| 87 | SELECTSKINMD LLC | VERO BEACH | FL | DERMATOLOGY | 2 | 1,323 | $1,376,772 | $1,041 | premium | 1.1% | (772) 567-1164 |
| 88 | DERMATOLOGIC SURGERY OF THE CAROLINAS LLC | ROCK HILL | NC | DERMATOLOGY | 3 | 1,318 | $1,689,676 | $1,282 | premium | 3.6% | 70491911055 |
| 89 | SOUTHEASTERN DERMATOLOGY GROUP PA | PANAMA CITY | FL | PHYSICIAN ASSISTANT | 43 | 1,306 | $1,693,432 | $1,297 | premium | 1.1% | — |
| 90 | EMILY F ARSENAULT MD PA | LAKEWOOD RANCH | FL | PHYSICIAN ASSISTANT | 24 | 1,297 | $1,713,560 | $1,321 | premium | 1.1% | (941) 907-0222 |
| 91 | THOMAS DERMATOLOGY | LAS VEGAS | NV | PHYSICIAN ASSISTANT | 34 | 1,290 | $1,491,948 | $1,157 | premium | 15.7% | (702) 430-5333 |
| 92 | SCOTT AND WHITE CLINIC | TEMPLE | TX | PHYSICIAN ASSISTANT | 2435 | 1,288 | $2,442,048 | $1,896 | premium | 2.1% | (254) 724-2663 |
| 93 | SKIN SURGERY CENTER PA | WINSTON SALEM | PA | PHYSICIAN ASSISTANT | 73 | 1,284 | $2,457,273 | $1,914 | premium | 3.4% | (336) 724-2434 |
| 94 | DERMATOLOGY LTD | MEDIA | PA | DERMATOLOGY | 10 | 1,283 | $1,218,850 | $950 | premium | 3.4% | (610) 566-7111 |
| 95 | HUDSON DERMATOLOGY, PC | FISHKILL | NY | PHYSICIAN ASSISTANT | 40 | 1,273 | $1,913,121 | $1,503 | premium | 3.1% | (845) 896-7730 |
| 96 | AVERA MCKENNAN | SIOUX FALLS | SD | NURSE PRACTITIONER | 964 | 1,273 | $399,995 | $314 | premium | 23.7% | (605) 322-5180 |
| 97 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 1,254 | $4,259,838 | $3,397 | premium | 9.3% | (608) 287-2050 |
| 98 | PRIME MEDICAL GROUP PLLC | LITTLE ROCK | AR | PHYSICIAN ASSISTANT | 16 | 1,246 | $1,492,729 | $1,198 | premium | 8.7% | (501) 227-8422 |
| 99 | VITALSKIN MEDICAL GROUP IL PLLC | CHICAGO | IL | DERMATOLOGY | 58 | 1,242 | $1,636,679 | $1,318 | premium | 4.4% | (773) 276-1100 |
| 100 | NEW LEXINGTON CLINIC PSC | LEXINGTON | KY | PHYSICIAN ASSISTANT | 322 | 1,240 | $1,869,651 | $1,508 | premium | 9.7% | (859) 258-4568 |
Showing the top 100 of 1,289 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 →