3,928 observed fee-for-service (51%) · ~3,752 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 | 58558 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 | VITALMD GROUP HOLDING LLC | MIAMI | FL | OBSTETRICS/GYNECOLOGY | 531 | 223 | $699,185 | $3,135 | premium | 19.7% | (305) 273-4641 |
| 2 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 110 | $364,510 | $3,314 | premium | 61.8% | (507) 284-2511 |
| 3 | ST PAUL PLACE SPECIALISTS, INC. | BALTIMORE | MD | PHYSICIAN ASSISTANT | 337 | 109 | $86,486 | $793 | premium | 16.3% | (410) 663-8100 |
| 4 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 96 | $322,715 | $3,362 | premium | 8.2% | (760) 340-3911 |
| 5 | FLORIDA WOMAN CARE LLC | ORLANDO | FL | OBSTETRICS/GYNECOLOGY | 604 | 75 | $337,500 | $4,500 | premium | 6.6% | (407) 857-2502 |
| 6 | COLLIER HMA PHYSICIAN MANAGEMENT LLC | NAPLES | FL | NURSE PRACTITIONER | 95 | 74 | $68,154 | $921 | premium | 6.5% | — |
| 7 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 72 | $203,904 | $2,832 | premium | 9.7% | — |
| 8 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 72 | $1,034,424 | $14,367 | premium | 9.7% | (212) 263-9700 |
| 9 | CAPE GYNECOLOGY, LLC | BREWSTER | MA | NURSE PRACTITIONER | 2 | 60 | $198,000 | $3,300 | premium | 15.7% | (508) 255-2325 |
| 10 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 54 | $254,983 | $4,722 | premium | 4.8% | (904) 953-2000 |
| 11 | COMMUNITY FOUNDATION MEDICAL GROUP | FRESNO | CA | PHYSICIAN ASSISTANT | 292 | 51 | $241,281 | $4,731 | premium | 4.3% | — |
| 12 | BEEBE PHYSICIAN NETWORK INC. | LEWES | DE | PHYSICIAN ASSISTANT | 295 | 50 | $153,887 | $3,078 | premium | 44.2% | (302) 645-3525 |
| 13 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | MD | HEMATOLOGY/ONCOLOGY | 99 | 50 | $212,853 | $4,257 | premium | 7.5% | (301) 982-9800 |
| 14 | STAR CLINIC LLC | PEORIA | AZ | OBSTETRICS/GYNECOLOGY | 8 | 46 | $164,174 | $3,569 | premium | 21.1% | (623) 271-8666 |
| 15 | SELAH WOMEN'S HEALTH PC | REDDING | CA | OBSTETRICS/GYNECOLOGY | 4 | 46 | $92,000 | $2,000 | premium | 3.9% | (530) 338-0002 |
| 16 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 44 | $289,300 | $6,575 | premium | 5.9% | (212) 746-5454 |
| 17 | VIRGINIA MASON MEDICAL CENTER | SEATTLE | WA | PHYSICIAN ASSISTANT | 879 | 42 | $178,107 | $4,241 | premium | 34.4% | (206) 223-6600 |
| 18 | VERITAS MEDICAL CARE LLC | BRENTWOOD | NY | GYNECOLOGICAL ONCOLOGY | 2 | 41 | $298,219 | $7,274 | premium | 5.5% | (631) 273-3712 |
| 19 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 40 | $145,164 | $3,629 | premium | 18.3% | (800) 603-0558 |
| 20 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 38 | $205,988 | $5,421 | premium | 5.1% | (212) 241-4812 |
| 21 | PRIVIA MEDICAL GROUP, LLC | ARLINGTON | MD | NURSE PRACTITIONER | 1477 | 37 | $151,996 | $4,108 | premium | 5.5% | — |
| 22 | SOUTH MIAMI GYN ONCOLOGY PHYSICIANS, LLC | MIAMI | FL | NURSE PRACTITIONER | 15 | 36 | $28,440 | $790 | premium | 3.2% | (786) 596-1960 |
| 23 | BAYSTATE MEDICAL PRACTICES INC | SPRINGFIELD | MA | PHYSICIAN ASSISTANT | 1326 | 35 | $109,534 | $3,130 | premium | 9.1% | — |
| 24 | CAPITAL WOMENS CARE LLC | ROCKVILLE | VA | OBSTETRICS/GYNECOLOGY | 284 | 33 | $97,728 | $2,961 | premium | 15.0% | (301) 424-1696 |
| 25 | ANDOVER OBSTETRICS AND GYNECOLOGICAL ASSOCIATES PC | ANDOVER | MA | OBSTETRICS/GYNECOLOGY | 12 | 32 | $153,600 | $4,800 | premium | 8.4% | (978) 475-2731 |
| 26 | ARIZONA MATERNITY AND WOMENS CLINIC INC | SURPRISE | AZ | OBSTETRICS/GYNECOLOGY | 2 | 31 | $97,650 | $3,150 | premium | 14.2% | (623) 242-9830 |
| 27 | HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC | NEPTUNE | NJ | NURSE PRACTITIONER | 1878 | 29 | $180,410 | $6,221 | premium | 9.5% | (732) 362-3663 |
| 28 | IOWA PHYSICIANS CLINIC MEDICAL FOUNDATION | BETTENDORF | IA | NURSE PRACTITIONER | 1202 | 29 | $22,057 | $761 | premium | 22.7% | — |
| 29 | GENESIS OB GYN PLLC | ORO VALLEY | AZ | OBSTETRICS/GYNECOLOGY | 112 | 29 | $83,551 | $2,881 | premium | 13.3% | (520) 545-0573 |
| 30 | SMH PHYSICIAN SERVICES INC | SARASOTA | FL | PHYSICIAN ASSISTANT | 766 | 28 | $15,008 | $536 | premium | 2.5% | — |
| 31 | REDDING FAMILY MEDICAL GROUP INC | REDDING | CA | FAMILY PRACTICE | 5 | 27 | $13,600 | $504 | premium | 2.3% | (530) 244-4034 |
| 32 | HEALTH FIRST MEDICAL GROUP, LLC | MELBOURNE | FL | NURSE PRACTITIONER | 669 | 26 | $12,480 | $480 | premium | 2.3% | (321) 434-8878 |
| 33 | LINCOLN OB-GYN P.C. | LINCOLN | NE | OBSTETRICS/GYNECOLOGY | 7 | 26 | $90,050 | $3,463 | premium | 68.4% | (402) 483-7641 |
| 34 | MAIQUEL CARRASCO OBGYN PC | NEW YORK | NY | OBSTETRICS/GYNECOLOGY | 2 | 26 | $80,600 | $3,100 | premium | 3.5% | (212) 772-3722 |
| 35 | MCLEOD PHYSICIAN ASSOCIATES II | FLORENCE | SC | PHYSICIAN ASSISTANT | 534 | 25 | $28,592 | $1,144 | premium | 33.3% | — |
| 36 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 25 | $35,625 | $1,425 | premium | 6.4% | (215) 662-2777 |
| 37 | SANDR WE CARE MEDICAL PC | BROOKLYN | NY | OBSTETRICS/GYNECOLOGY | 2 | 25 | $75,000 | $3,000 | premium | 3.4% | (718) 743-5300 |
| 38 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | MD | NURSE PRACTITIONER | 4339 | 25 | $56,568 | $2,263 | premium | 3.7% | — |
| 39 | SPENCER MUNICIPAL HOSPITAL | SPENCER | IA | NURSE PRACTITIONER | 89 | 25 | $12,216 | $489 | premium | 19.5% | (712) 580-2225 |
| 40 | REGIONAL WOMENS HEALTH GROUP LLC | VOORHEES | NJ | OBSTETRICS/GYNECOLOGY | 352 | 25 | $100,000 | $4,000 | premium | 8.2% | (856) 424-3323 |
| 41 | ADVANCED GYNECOLOGY AND SURGERY PLLC | BROOKLYN | NY | OBSTETRICS/GYNECOLOGY | 2 | 24 | $48,000 | $2,000 | premium | 3.2% | (718) 332-6525 |
| 42 | ADVANCED DIAGNOSTIC IMAGING PC | NASHVILLE | TN | NURSE PRACTITIONER | 534 | 24 | $32,132 | $1,339 | premium | 12.7% | (615) 612-2146 |
| 43 | BHS PHYSICIANS NETWORK, INC | SAN ANTONIO | TX | PHYSICIAN ASSISTANT | 696 | 24 | $90,384 | $3,766 | premium | 6.0% | (210) 614-7414 |
| 44 | HH PHYSICIANS NETWORK | HUNTSVILLE | AL | PULMONARY DISEASE | 105 | 24 | $15,456 | $644 | premium | 58.5% | (256) 265-8553 |
| 45 | COTTON-O'NEIL CLINIC REVOCABLE TRUST | TOPEKA | KS | NURSE PRACTITIONER | 649 | 24 | $72,214 | $3,009 | premium | 35.3% | (785) 354-9591 |
| 46 | SOUTH FLORIDA CENTER FOR GYNECOLOGIC ONCOLOGY P A | BOCA RATON | FL | GYNECOLOGICAL ONCOLOGY | 2 | 24 | $48,000 | $2,000 | premium | 2.1% | (561) 997-8991 |
| 47 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 24 | $38,172 | $1,590 | premium | 2.0% | (415) 600-1020 |
| 48 | UNIVERSITY PRIMARY CARE PRACTICES INC | CONNEAUT | OH | FAMILY PRACTICE | 1067 | 24 | $36,000 | $1,500 | premium | 23.1% | — |
| 49 | UNIVERSITY ASSOCIATES IN OBSTETRICS AND GYNECOLOGY UNIVERSITY FACULTY | STONY BROOK | NY | OBSTETRICS/GYNECOLOGY | 113 | 22 | $110,330 | $5,015 | premium | 3.0% | (631) 444-7650 |
| 50 | INTERCOASTAL MEDICAL GROUP INC | SARASOTA | FL | DIAGNOSTIC RADIOLOGY | 187 | 22 | $10,556 | $480 | premium | 1.9% | (941) 366-1888 |
| 51 | IMPERIAL VALLEY FAMILY CARE MEDICAL GROUP A P C | EL CENTRO | CA | FAMILY PRACTICE | 23 | 22 | $44,000 | $2,000 | premium | 1.9% | (760) 353-6363 |
| 52 | HORIZON MEDICAL GROUP PC | CHESTER | NY | GASTROENTEROLOGY | 69 | 21 | $16,800 | $800 | premium | 2.8% | (845) 469-4211 |
| 53 | MCFARLAND CLINIC PC | AMES | IA | PHYSICIAN ASSISTANT | 352 | 21 | $71,820 | $3,420 | premium | 16.4% | (515) 239-4400 |
| 54 | ALECIA M. GIOVINAZZO MD LLC | STATEN ISLAND | NY | OBSTETRICS/GYNECOLOGY | 2 | 19 | $84,274 | $4,435 | premium | 2.6% | (718) 494-2690 |
| 55 | BOONE PHYSICIAN SERVICES LLC | COLUMBIA | MO | PHYSICIAN ASSISTANT | 236 | 19 | $35,000 | $1,842 | premium | 18.8% | (573) 815-8000 |
| 56 | SPECIALTY PHYSICIANS OF GARRETT COUNTY, LLC | OAKLAND | MD | PHYSICIAN ASSISTANT | 84 | 19 | $73,188 | $3,852 | premium | 2.8% | — |
| 57 | LOS ANGELES HEMATOLOGY-ONCOLOGY MEDICAL GROUP | LOS ANGELES | CA | HEMATOLOGY/ONCOLOGY | 51 | 18 | $91,440 | $5,080 | premium | 1.5% | (213) 977-1214 |
| 58 | REGENTS UNIV OF CALIFORNIA UCSF | SAN FRANCISCO | CA | PHYSICIAN ASSISTANT | 277 | 18 | $144,450 | $8,025 | premium | 1.5% | (415) 476-1000 |
| 59 | UNIVERSITY OF VIRGINIA PHYSICIANS GROUP | CHARLOTTESVILLE | VA | NURSE PRACTITIONER | 1704 | 18 | $63,630 | $3,535 | premium | 8.2% | (434) 924-5959 |
| 60 | CAPITAL WOMENS CARE LLC | ROCKVILLE | MD | OBSTETRICS/GYNECOLOGY | 284 | 18 | $81,450 | $4,525 | premium | 2.7% | (301) 424-1696 |
| 61 | FORSYTH MEDICAL GROUP, LLC | HENDERSONVILLE | NC | NURSE PRACTITIONER | 47 | 18 | $48,348 | $2,686 | premium | 11.1% | (828) 687-3800 |
| 62 | MONONGALIA COUNTY GENERAL HOSPITAL COMPANY | MORGANTOWN | WV | PHYSICIAN ASSISTANT | 254 | 17 | $57,084 | $3,358 | premium | 60.7% | (304) 598-1200 |
| 63 | WOMEN'S HEALTH CENTER OF SOUTHERN OREGON PC | GRANTS PASS | OR | PHYSICIAN ASSISTANT | 15 | 17 | $14,864 | $874 | premium | 28.8% | (541) 479-8363 |
| 64 | NORTH SHORE LIJ OB GYN PC | ISLANDIA | NY | OBSTETRICS/GYNECOLOGY | 15 | 17 | $127,143 | $7,479 | premium | 2.3% | (631) 292-6747 |
| 65 | BELLEZZA SENSA LLC | PRESCOTT | AZ | NURSE PRACTITIONER | 2 | 17 | $47,600 | $2,800 | premium | 7.8% | (928) 237-4422 |
| 66 | JOHN RANDOLPH OB/GYN, LLC | RICHMOND | FL | OBSTETRICS/GYNECOLOGY | 5 | 17 | $29,700 | $1,747 | premium | 1.5% | (804) 267-6931 |
| 67 | MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC | SALEM | MA | NURSE PRACTITIONER | 803 | 17 | $25,636 | $1,508 | premium | 4.4% | (978) 741-4133 |
| 68 | KELLY H ROY MD PC | PHOENIX | AZ | PHYSICIAN ASSISTANT | 25 | 17 | $14,875 | $875 | premium | 7.8% | (602) 358-8588 |
| 69 | MASS GENERAL BRIGHAM MEDICAL GROUP SUBURBAN MASSACHUSETTS INC | NEWTON | MA | INTERNAL MEDICINE | 535 | 17 | $25,636 | $1,508 | premium | 4.4% | (617) 243-6000 |
| 70 | TEXAS ONCOLOGY PA | DALLAS | TX | PHYSICIAN ASSISTANT | 995 | 16 | $58,576 | $3,661 | premium | 4.0% | — |
| 71 | ALLEGHENY CLINIC | PITTSBURGH | PA | PHYSICIAN ASSISTANT | 2293 | 16 | $10,721 | $670 | premium | 4.1% | — |
| 72 | ASSOCIATES IN OBSTETRICS AND GYNECOLOGY PC | COLORADO SPRINGS | CO | OBSTETRICS/GYNECOLOGY | 3 | 16 | $24,592 | $1,537 | premium | 25.8% | (719) 667-2344 |
| 73 | PINEHURST SURGICAL CLINIC PA | PINEHURST | NC | PHYSICIAN ASSISTANT | 91 | 16 | $81,808 | $5,113 | premium | 9.9% | (910) 295-6831 |
| 74 | TEMPLE FACULTY PRACTICE PLAN INC | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 1330 | 16 | $12,480 | $780 | premium | 4.1% | — |
| 75 | COMMUNITY FOUNDATION MEDICAL GROUP | FRESNO | MD | PHYSICIAN ASSISTANT | 292 | 16 | $75,696 | $4,731 | premium | 2.4% | — |
| 76 | BERGEN-PASSAIC WOMENS HEALTH CENTER LLC | WYCKOFF | IL | OBSTETRICS/GYNECOLOGY | 2 | 15 | $33,000 | $2,200 | premium | 7.8% | (201) 891-3336 |
| 77 | PRACTICE ASSOCIATES MEDICAL GROUP | MORRISTOWN | NJ | NURSE PRACTITIONER | 1404 | 15 | $12,780 | $852 | premium | 4.9% | (973) 971-5596 |
| 78 | FLORIDA WOMAN CARE LLC | ORLANDO | IL | OBSTETRICS/GYNECOLOGY | 604 | 15 | $67,500 | $4,500 | premium | 7.8% | (407) 857-2502 |
| 79 | RIVERSIDE PHYSICIAN SERVICES INC | NEWPORT NEWS | VA | PHYSICIAN ASSISTANT | 793 | 15 | $6,800 | $453 | premium | 6.8% | — |
| 80 | PRIVIA MEDICAL GROUP GULF COAST PLLC | HOUSTON | TX | NURSE PRACTITIONER | 515 | 15 | $34,125 | $2,275 | premium | 3.8% | (713) 512-7500 |
| 81 | BETHPAGE MEDICAL PLLC | NEW YORK | NY | OBSTETRICS/GYNECOLOGY | 11 | 15 | $82,924 | $5,528 | premium | 2.0% | (212) 629-1000 |
| 82 | OBSTETRICS GYNECOLOGY ASSOCIATES PA | TUPELO | MS | OBSTETRICS/GYNECOLOGY | 11 | 15 | $12,000 | $800 | premium | 32.6% | (662) 842-1161 |
| 83 | MASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC | NORTHAMPTON | MA | PHYSICIAN ASSISTANT | 280 | 15 | $64,305 | $4,287 | premium | 3.9% | (413) 582-2441 |
| 84 | PRIMA CARE, PC | FALL RIVER | MA | NURSE PRACTITIONER | 220 | 15 | $66,930 | $4,462 | premium | 3.9% | — |
| 85 | SOUDABEH AHADI MD PC | MONROE | MI | OBSTETRICS/GYNECOLOGY | 3 | 15 | $12,750 | $850 | premium | 20.8% | (734) 242-2022 |
| 86 | HR PHYSICIAN SERVICES | MEADOWBROOK | PA | INTERNAL MEDICINE | 178 | 15 | $13,765 | $918 | premium | 3.8% | (215) 436-1420 |
| 87 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 14 | $58,660 | $4,190 | premium | 36.8% | (203) 688-4242 |
| 88 | BRIGHAM FAULKNER OB GYN ASSOCIATES PC | BOSTON | MA | OBSTETRICS/GYNECOLOGY | 6 | 14 | $64,400 | $4,600 | premium | 3.7% | — |
| 89 | TRYON MEDICAL PARTNERS, PLLC | CHARLOTTE | NC | INTERNAL MEDICINE | 145 | 14 | $45,402 | $3,243 | premium | 8.6% | (704) 495-6334 |
| 90 | PINELAKE PHYSICIAN PRACTICE LLC | MAYFIELD | KY | NURSE PRACTITIONER | 46 | 14 | $7,784 | $556 | premium | 14.7% | (270) 251-4100 |
| 91 | PROVIDENCE HEALTH AND SERVICES WASHINGTON | OLYMPIA | WA | FAMILY PRACTICE | 477 | 14 | $9,926 | $709 | premium | 11.5% | (360) 493-4083 |
| 92 | HALIFAX REGIONAL HOSPITAL INC | SOUTH BOSTON | VA | NURSE PRACTITIONER | 26 | 14 | $6,206 | $443 | premium | 6.4% | (434) 517-8627 |
| 93 | SOUTH TEXAS ONCOLOGY AND HEMATOLOGY, PLLC | SAN ANTONIO | TX | HEMATOLOGY/ONCOLOGY | 39 | 14 | $9,298 | $664 | premium | 3.5% | (210) 593-5700 |
| 94 | GEORGETOWN PHYSICIAN ASSOCIATES, LLC | MURRELLS INLET | SC | FAMILY PRACTICE | 230 | 14 | $28,158 | $2,011 | premium | 18.7% | (843) 652-8450 |
| 95 | LIFELINE MEDICAL ASSOCIATES LLC | DENVILLE | DE | OBSTETRICS/GYNECOLOGY | 150 | 14 | $49,000 | $3,500 | premium | 12.4% | — |
| 96 | LA PORTE CLINIC COMPANY LLC | LA PORTE | IN | NURSE PRACTITIONER | 67 | 14 | $8,694 | $621 | premium | 9.7% | (219) 326-5700 |
| 97 | SOUTHWESTERN VERMONT MEDICAL CENTER, INC | BENNINGTON | VT | NURSE PRACTITIONER | 178 | 14 | $39,032 | $2,788 | premium | 36.8% | (802) 440-4077 |
| 98 | SAINT FRANCIS MEDICAL CENTER | CAPE GIRARDEAU | MO | NURSE PRACTITIONER | 435 | 13 | $18,070 | $1,390 | premium | 12.9% | (573) 331-3000 |
| 99 | DR GREGORY SHIFRIN OB/GYN PC | BROOKLYN | NY | OBSTETRICS/GYNECOLOGY | 4 | 13 | $65,000 | $5,000 | premium | 1.8% | (718) 743-0505 |
| 100 | STURDY HEALTH INC | ATTLEBORO | MA | NURSE PRACTITIONER | 196 | 13 | $48,100 | $3,700 | premium | 3.4% | (508) 222-3200 |
Showing the top 100 of 169 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 →