258,632 observed fee-for-service (50%) · ~261,464 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 | J3490 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 | MOUNTAIN VIEW HEADACHE AND SPINE INSTITUTE PLLC | PHOENIX | AZ | NURSE PRACTITIONER | 8 | 17,796 | $298,081 | $17 | premium | 68.1% | (602) 767-0007 |
| 2 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 11,654 | $3,952,328 | $339 | premium | 42.9% | — |
| 3 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 11,640 | $8,910 | $1 | premium | 53.6% | (215) 662-2777 |
| 4 | NAZANIN FIROOZ MD INC | WOODLAND HILLS | CA | RHEUMATOLOGY | 2 | 11,026 | $193,885 | $18 | premium | 14.4% | (818) 598-0000 |
| 5 | RETINA VITREOUS CONSULTANTS | FT LAUDERDALE | FL | OPHTHALMOLOGY | 44 | 7,619 | $14,752,736 | $1,936 | premium | 10.8% | (954) 776-6880 |
| 6 | REGIONAL CANCER CARE ASSOCIATES LLC | HACKENSACK | NJ | HEMATOLOGY/ONCOLOGY | 153 | 5,964 | $669,794 | $112 | premium | 45.2% | (201) 996-2210 |
| 7 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 244 | 5,818 | $20,433 | $4 | premium | 12.5% | (212) 772-3111 |
| 8 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 4,474 | $972,961 | $217 | premium | 54.3% | — |
| 9 | RITA R ELLITHORPE MD INC | TUSTIN | CA | PHYSICIAN ASSISTANT | 6 | 4,088 | $1,360,065 | $333 | premium | 5.3% | (714) 544-1521 |
| 10 | KLEYNBERG MEDICAL CLINIC INC | LOS ANGELES | CA | HEMATOLOGY/ONCOLOGY | 2 | 4,024 | $56,336 | $14 | premium | 5.2% | (323) 965-9995 |
| 11 | ONCOLOGY SPECIALTIES, P.C. | HUNTSVILLE | AL | NURSE PRACTITIONER | 93 | 3,484 | $11,291 | $3 | premium | 85.0% | (256) 705-4224 |
| 12 | CALIFORNIA CANCER ASSOCIATES FOR RESEARCH AND EXCELLENCE INC | FRESNO | CA | HEMATOLOGY/ONCOLOGY | 62 | 3,483 | $8,708 | $2 | premium | 4.5% | (559) 326-1222 |
| 13 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | MD | HEMATOLOGY/ONCOLOGY | 99 | 3,272 | $353,880 | $108 | premium | 30.4% | (301) 982-9800 |
| 14 | SPINECARE ASSOCIATES, LLC | CLEARWATER | FL | PHYSICAL MEDICINE AND REHABILITATION | 12 | 3,172 | $157,675 | $50 | premium | 4.5% | (727) 797-7463 |
| 15 | BRYN MAWR MEDICAL SPECIALISTS ASSOCIATION | BRYN MAWR | PA | NURSE PRACTITIONER | 134 | 3,067 | $56,000 | $18 | premium | 14.1% | (610) 527-3800 |
| 16 | ILLINOIS CANCER SPECIALISTS | ARLINGTON HEIGHTS | IL | HEMATOLOGY/ONCOLOGY | 29 | 2,960 | $27,697 | $9 | premium | 26.6% | (847) 259-4482 |
| 17 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 2,935 | $137,203 | $47 | premium | 3.8% | (858) 455-9100 |
| 18 | APEX CARDIOLOGY CONSULTANTS | INGLEWOOD | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 8 | 2,520 | $153,340 | $61 | premium | 3.3% | (310) 672-3900 |
| 19 | ERIK LUNDQUIST MD INC | TEMECULA | CA | FAMILY PRACTICE | 3 | 2,401 | $714,120 | $297 | premium | 3.1% | 9513834333826 |
| 20 | ALLIANCE CANCER SPECIALISTS P.C. | LANGHORNE | PA | HEMATOLOGY/ONCOLOGY | 44 | 2,349 | $74,929 | $32 | premium | 10.8% | (215) 750-5050 |
| 21 | OPHTHALMIC PARTNERS OF FLORIDA PA | ORLANDO | FL | OPHTHALMOLOGY | 5 | 2,187 | $528,015 | $241 | premium | 3.1% | (407) 425-7188 |
| 22 | MID FLORIDA EYE CENTER PA | MOUNT DORA | FL | OPHTHALMOLOGY | 11 | 2,119 | $347,900 | $164 | premium | 3.0% | (352) 744-7002 |
| 23 | CANCER CENTER OF KANSAS PA | WICHITA | KS | HEMATOLOGY/ONCOLOGY | 27 | 2,092 | $18,828 | $9 | premium | 82.3% | (316) 262-4467 |
| 24 | MURRAY OCULAR ONCOLOGY AND RETINA INC | SOUTH MIAMI | FL | OPHTHALMOLOGY | 2 | 1,964 | $578,300 | $294 | premium | 2.8% | (305) 487-7470 |
| 25 | RETINA HEALTH CENTER PL | FORT MYERS | FL | OPHTHALMOLOGY | 3 | 1,886 | $14,138,150 | $7,496 | premium | 2.7% | 2393373337260 |
| 26 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 1,817 | $2,366,820 | $1,303 | premium | 2.6% | (305) 689-5437 |
| 27 | EL CAMINO HEALTH MEDICAL NETWORK LLC | SAN JOSE | CA | PHYSICIAN ASSISTANT | 199 | 1,740 | $395,450 | $227 | premium | 2.3% | (408) 871-3400 |
| 28 | HIGHLANDS ONCOLOGY GROUP PA | FAYETTEVILLE | AR | NURSE PRACTITIONER | 79 | 1,723 | $10,600 | $6 | premium | 20.9% | (479) 361-2585 |
| 29 | UROLOGY ASSOCIATES OF CENTRAL CALIFORNIA MEDICAL GROUP INC | FRESNO | CA | UROLOGY | 11 | 1,722 | $275,285 | $160 | premium | 2.2% | (559) 321-2800 |
| 30 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 1,694 | $92,835 | $55 | premium | 53.3% | (507) 284-2511 |
| 31 | SOUTHWEST CANCER CARE LLC | SIERRA VISTA | AZ | NURSE PRACTITIONER | 6 | 1,687 | $157,055 | $93 | premium | 6.5% | (520) 220-5020 |
| 32 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 1,680 | $544,320 | $324 | premium | 2.2% | — |
| 33 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 1,570 | $37,136 | $24 | premium | 2.0% | (626) 256-4673 |
| 34 | THE WEST CLINIC P.C. | GERMANTOWN | TN | NURSE PRACTITIONER | 113 | 1,569 | $15,753 | $10 | premium | 30.0% | (901) 683-0055 |
| 35 | CRYSTAL RUN HEALTHCARE PHYSICIANS LLP | MIDDLETOWN | NY | NURSE PRACTITIONER | 372 | 1,556 | $53,338 | $34 | premium | 3.3% | (845) 703-6999 |
| 36 | ROCKY MOUNTAIN CANCER CENTERS LLP | COLORADO SPRINGS | CO | NURSE PRACTITIONER | 129 | 1,520 | $135,667 | $89 | premium | 56.3% | (719) 577-2555 |
| 37 | JACKSON ONCOLOGY ASSOCIATES | JACKSON | MS | HEMATOLOGY/ONCOLOGY | 11 | 1,400 | $243,921 | $174 | premium | 48.4% | (601) 974-5600 |
| 38 | NEUROVERSION | ANCHORAGE | AK | PHYSICIAN ASSISTANT | 10 | 1,396 | $19,544 | $14 | premium | 58.7% | (907) 339-4650 |
| 39 | HEALTHBEAT, PLLC | CHESTNUT HILL | MA | PHYSICIAN ASSISTANT | 4 | 1,348 | $374,400 | $278 | premium | 46.9% | (617) 277-5000 |
| 40 | HEMATOLOGY-ONCOLOGY ASSOCIATES OF CNY, PC | EAST SYRACUSE | NY | NURSE PRACTITIONER | 61 | 1,340 | $2,680 | $2 | premium | 2.9% | (315) 472-7504 |
| 41 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 1,308 | $201,336 | $154 | premium | 11.7% | — |
| 42 | CONSULTANTS IN MEDICAL ONCOLOGY AND HEMATOLOGY PC | BROOMALL | PA | HEMATOLOGY/ONCOLOGY | 10 | 1,292 | $11,655 | $9 | premium | 5.9% | (610) 492-5900 |
| 43 | ONCOLOGY AND HEMATOLOGY ASSOCIATES OF SOUTHWEST VIRGINIA INC | ROANOKE | VA | NURSE PRACTITIONER | 52 | 1,261 | $11,457 | $9 | premium | 22.3% | (540) 982-0237 |
| 44 | NAIM T. NAZHA MD PC | NORTHFIELD | NJ | MEDICAL ONCOLOGY | 2 | 1,255 | $15,060 | $12 | premium | 9.5% | (609) 383-6033 |
| 45 | EAST TEXAS FUNCTIONAL MEDICINE CENTER, LLC | TYLER | TX | NURSE PRACTITIONER | 3 | 1,241 | $172,875 | $139 | premium | 4.6% | (903) 595-8077 |
| 46 | PANHANDLE EYE GROUP, LLP | AMARILLO | TX | OPHTHALMOLOGY | 11 | 1,213 | $9,097,500 | $7,500 | premium | 4.5% | (806) 351-1870 |
| 47 | POTOMAC ONCOLOGY AND HEMATOLOGY, LLC | ROCKVILLE | MD | NURSE PRACTITIONER | 3 | 1,187 | $13,010 | $11 | premium | 11.0% | (240) 618-0275 |
| 48 | BEACON CANCER CARE PLLC | COEUR D ALENE | ID | NURSE PRACTITIONER | 14 | 1,148 | $6,888 | $6 | premium | 75.8% | (208) 755-2804 |
| 49 | SOUTH CAROLINA ONCOLOGY ASSOC PA | COLUMBIA | SC | HEMATOLOGY/ONCOLOGY | 18 | 1,098 | $31,871 | $29 | premium | 21.0% | (803) 461-3000 |
| 50 | ONCOLOGY HEMATOLOGY WEST PC | OMAHA | NE | PHYSICIAN ASSISTANT | 55 | 1,068 | $2,138 | $2 | premium | 15.1% | (402) 393-3110 |
| 51 | ALLISON CURTIS KINGSLEY MEOZ MICHAEL AND SANCHEZ PC | LAS VEGAS | NV | NURSE PRACTITIONER | 71 | 1,032 | $35,945 | $35 | premium | 15.2% | (702) 952-2140 |
| 52 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | GA | HEMATOLOGY/ONCOLOGY | 333 | 1,005 | $13,990 | $14 | premium | 24.2% | (260) 484-8830 |
| 53 | ONCOLOGY HEMATOLOGY CARE INC | CINCINNATI | OH | NURSE PRACTITIONER | 66 | 997 | $4,521 | $5 | premium | 18.0% | (513) 751-2273 |
| 54 | ONCOLOGY-HEMATOLOGY ASSOCIATES OF CENTRAL ILLINOIS P C | PEORIA | IL | NURSE PRACTITIONER | 62 | 993 | $68,963 | $69 | premium | 8.9% | (309) 243-3000 |
| 55 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 988 | $37,836 | $38 | premium | 3.8% | (800) 603-0558 |
| 56 | PRINCETON MEDICAL GROUP,P.A. | PRINCETON | NJ | INTERNAL MEDICINE | 36 | 971 | $3,888 | $4 | premium | 7.4% | (609) 924-9300 |
| 57 | MINNESOTA ONCOLOGY HEMATOLOGY PA | EDINA | MN | PHYSICIAN ASSISTANT | 135 | 923 | $101,641 | $110 | premium | 29.0% | (952) 928-2900 |
| 58 | VIRGINIA CANCER SPECIALISTS, P.C. | FAIRFAX | VA | HEMATOLOGY/ONCOLOGY | 76 | 875 | $7,920 | $9 | premium | 15.5% | (703) 280-5390 |
| 59 | WILLIAM A. TISDALL, M.D., P.A. | SAN ANTONIO | NM | PHYSICIAN ASSISTANT | 9 | 867 | $9,196 | $11 | premium | 36.9% | — |
| 60 | AUSTIN RETINA ASSOCIATES PLLC | AUSTIN | TX | OPHTHALMOLOGY | 19 | 859 | $4,751,275 | $5,531 | premium | 3.2% | (512) 451-0103 |
| 61 | SOLANO HEMATOLOGY - ONCOLOGY | VALLEJO | CA | HEMATOLOGY/ONCOLOGY | 3 | 850 | $8,524 | $10 | premium | 1.1% | (707) 551-3300 |
| 62 | UROLOGY ASSOCIATES OF THE CENTRAL COAST | SAN LUIS OBISPO | CA | PHYSICIAN ASSISTANT | 13 | 819 | $162,630 | $199 | premium | 1.1% | — |
| 63 | CLEVELAND CLINIC | CLEVELAND | OH | PHYSICIAN ASSISTANT | 6828 | 809 | $69,183 | $86 | premium | 14.6% | — |
| 64 | BREATHE FREE SINUS AND ALLERGY CENTERS OF FLORIDA LLC | PENSACOLA | FL | OTOLARYNGOLOGY | 3 | 805 | $316,000 | $393 | premium | 1.1% | (850) 990-9407 |
| 65 | MICHEL S. BADIN, MD PA | JERSEY CITY | NJ | HEMATOLOGY/ONCOLOGY | 3 | 795 | $70,755 | $89 | premium | 6.0% | (201) 433-4848 |
| 66 | REGIONAL CANCER CARE ASSOCIATES LLC | HACKENSACK | VT | HEMATOLOGY/ONCOLOGY | 153 | 792 | $14,126 | $18 | premium | 78.0% | (201) 996-2210 |
| 67 | HATTIESBURG CLINIC PA | HATTIESBURG | MS | FAMILY PRACTICE | 530 | 792 | $28,134 | $36 | premium | 27.4% | (601) 264-6000 |
| 68 | PIEDMONT CANCER INSTITUTE PC | ATLANTA | GA | PHYSICIAN ASSISTANT | 42 | 788 | $2,370 | $3 | premium | 18.9% | (404) 350-9853 |
| 69 | SUMMIT MEDICAL GROUP PA | BERKELEY HEIGHTS | NJ | PHYSICIAN ASSISTANT | 1183 | 788 | $489,575 | $621 | premium | 6.0% | (908) 273-4300 |
| 70 | ATLANTIC RETINA CONSULTANTS | MELBOURNE | FL | OPHTHALMOLOGY | 2 | 783 | $219,240 | $280 | premium | 1.1% | (321) 999-7456 |
| 71 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 777 | $1,560 | $2 | premium | 7.0% | (217) 544-6464 |
| 72 | CANCER AND BLOOD SPECIALTY CLINIC | LOS ALAMITOS | CA | HEMATOLOGY/ONCOLOGY | 17 | 762 | $17,492 | $23 | premium | 1.0% | (562) 598-9745 |
| 73 | ROBERT G SALAZAR MD INC | FRESNO | CA | PHYSICIAN ASSISTANT | 4 | 761 | $584,082 | $768 | premium | 1.0% | (559) 432-6807 |
| 74 | RETINA CENTER PA | GAINESVILLE | FL | OPHTHALMOLOGY | 2 | 753 | $131,772 | $175 | premium | 1.1% | (352) 333-5050 |
| 75 | WASHINGTON UNIVERSITY | SAINT LOUIS | MO | NURSE PRACTITIONER | 3070 | 719 | $22,090 | $31 | premium | 30.0% | (314) 747-3000 |
| 76 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 718 | $2,440 | $3 | premium | 30.2% | (319) 678-8201 |
| 77 | VITREO-RETINAL MEDICAL GROUP, INC. | YUBA CITY | CA | OPHTHALMOLOGY | 21 | 689 | $5,140,500 | $7,461 | premium | 0.9% | (530) 273-8358 |
| 78 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | FL | HEMATOLOGY/ONCOLOGY | 333 | 681 | $165,032 | $242 | premium | 1.0% | (260) 484-8830 |
| 79 | TMC MEDICAL NETWORK | TUCSON | AZ | NURSE PRACTITIONER | 273 | 674 | $386,117 | $573 | premium | 2.6% | (520) 324-4230 |
| 80 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | MD | HEMATOLOGY/ONCOLOGY | 333 | 669 | $318,960 | $477 | premium | 6.2% | (260) 484-8830 |
| 81 | COASTAL CANCER CENTER LLC | MYRTLE BEACH | SC | RADIATION ONCOLOGY | 22 | 656 | $6,590 | $10 | premium | 12.5% | (843) 449-9415 |
| 82 | IYENGAR HEMATOLOGY ONCOLOGY MEDICAL CENTER PA | BAYONNE | NJ | HEMATOLOGY/ONCOLOGY | 2 | 644 | $2,029 | $3 | premium | 4.9% | (201) 858-1211 |
| 83 | SOUTH TEXAS ONCOLOGY AND HEMATOLOGY, PLLC | SAN ANTONIO | TX | HEMATOLOGY/ONCOLOGY | 39 | 641 | $644 | $1 | premium | 2.4% | (210) 593-5700 |
| 84 | MICHIGAN HEALTHCARE PROFESSIONALS PC | FARMINGTON HILLS | MI | INTERNAL MEDICINE | 518 | 637 | $3,484 | $5 | premium | 26.8% | (248) 477-0552 |
| 85 | LONG ISLAND VITREO RETINAL CONSULTANTS PC | GREAT NECK | NY | OPHTHALMOLOGY | 19 | 635 | $3,584,800 | $5,645 | premium | 1.4% | (516) 466-0390 |
| 86 | DESERT HEMATOLOGY-ONCOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | HEMATOLOGY/ONCOLOGY | 10 | 621 | $12,400 | $20 | premium | 0.8% | (760) 568-3613 |
| 87 | JOHN A SHIELDS MD AND STEVEN A SCHIFF MD A PROFESSIONAL CORPORATION | RENO | NV | HEMATOLOGY/ONCOLOGY | 19 | 607 | $3,035 | $5 | premium | 9.0% | (775) 329-0873 |
| 88 | IRONWOOD PHYSICIANS PC | MESA | AZ | HEMATOLOGY/ONCOLOGY | 114 | 601 | $1,803 | $3 | premium | 2.3% | (480) 981-1326 |
| 89 | VIRGINIA ONCOLOGY ASSOCIATES | NORFOLK | VA | PHYSICIAN ASSISTANT | 123 | 601 | $58,774 | $98 | premium | 10.6% | — |
| 90 | OKLAHOMA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC | TULSA | OK | NURSE PRACTITIONER | 47 | 599 | $10,422 | $17 | premium | 43.4% | (918) 505-3200 |
| 91 | SHENANDOAH ONCOLOGY PC | WINCHESTER | VA | NURSE PRACTITIONER | 22 | 595 | $5,347 | $9 | premium | 10.5% | (540) 662-1108 |
| 92 | BOCACARE INC | BOCA RATON | FL | PHYSICIAN ASSISTANT | 199 | 595 | $1,746 | $3 | premium | 0.8% | (561) 955-7100 |
| 93 | PALMETTO RETINA CENTER LLC | WEST COLUMBIA | SC | OPHTHALMOLOGY | 13 | 587 | $4,569,075 | $7,784 | premium | 11.2% | (803) 744-0156 |
| 94 | TRI-COUNTY HEMATOLOGY AND ONCOLOGY ASSOCIATES INC | MASSILLON | OH | HEMATOLOGY/ONCOLOGY | 6 | 580 | $384 | $1 | premium | 10.5% | (330) 478-0001 |
| 95 | AMERICAN ONCOLOGY PARTNERS PA | FORT WAYNE | AR | HEMATOLOGY/ONCOLOGY | 333 | 580 | $42,653 | $74 | premium | 7.0% | (260) 484-8830 |
| 96 | MID-ILLINOIS HEMATOLOGY ONCOLOGY ASSOCIATES LTD | NORMAL | IL | HEMATOLOGY/ONCOLOGY | 4 | 557 | $2,785 | $5 | premium | 5.0% | (309) 452-9701 |
| 97 | NEW MEXICO ONCOLOGY HEMATOLOGY CONSULTANTS LTD | ALBUQUERQUE | NM | DIAGNOSTIC RADIOLOGY | 67 | 556 | $56,563 | $102 | premium | 23.6% | (505) 842-8171 |
| 98 | JEFFERSON CITY MEDICAL GROUP PC | JEFFERSON CITY | MO | NURSE PRACTITIONER | 115 | 553 | $8,295 | $15 | premium | 23.0% | (573) 556-5771 |
| 99 | MONTEREY BAY ONCOLOGY A MEDICAL CORPORATION | MONTEREY | CA | HEMATOLOGY/ONCOLOGY | 10 | 550 | $2,750 | $5 | premium | 0.7% | (831) 375-4105 |
| 100 | TEXAS RETINA ASSOCIATES | DALLAS | TX | OPHTHALMOLOGY | 18 | 548 | $3,306,400 | $6,034 | premium | 2.0% | (214) 692-6941 |
Showing the top 100 of 528 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 →