California's 52,782 Medicaid providers billed $129.43B between 2018 and 2024. The most-billed code is T1015, accounting for $21.79B in payments. Los Angeles is the largest Medicaid billing hub in the state. 39 providers in CA appear on the OIG exclusion list.
| Code | Description | Total Paid |
|---|---|---|
| T1015 | Clinic visit/encounter, all-inclusive | $21.79B |
| H2015 | Comprehensive community support services, per 15 minutes | $8.35B |
| 00003 | Internal/system code - not a standard HCPCS code | $5.32B |
LOS ANGELES ($14.80B) SAN DIEGO ($6.17B) SAN JOSE ($3.73B) BAKERSFIELD ($3.60B) SACRAMENTO ($3.58B) SAN FRANCISCO ($3.16B) RIVERSIDE ($2.68B) OAKLAND ($2.63B) SAN BERNARDINO ($2.40B) FRESNO ($2.37B) MODESTO ($1.59B) SANTA ANA ($1.57B) STOCKTON ($1.52B) ORANGE ($1.44B) ALHAMBRA ($1.32B) OXNARD ($1.23B) PASADENA ($1.22B) SALINAS ($1.20B) LONG BEACH ($1.13B) GLENDALE ($1.09B) CHULA VISTA ($1.09B) TORRANCE ($959.45M) VAN NUYS ($949.03M) REDDING ($895.84M) MARTINEZ ($868.02M) VISALIA ($856.44M) ANAHEIM ($839.86M) SANTA ROSA ($793.19M) WEST HILLS ($743.97M) EL CAJON ($742.96M) MERCED ($702.01M) VALENCIA ($683.81M) LANCASTER ($674.18M) SAN CARLOS ($667.95M) ESCONDIDO ($666.86M) SANTA MARIA ($618.95M) WALNUT CREEK ($617.49M) NORTHRIDGE ($613.17M) SANTA BARBARA ($610.31M) SANTA CRUZ ($605.01M) LOMA LINDA ($585.54M) REDLANDS ($580.11M) VICTORVILLE ($554.97M) SAN MATEO ($553.12M) GARDEN GROVE ($519.83M) FREMONT ($519.76M) CHICO ($515.60M) CORONA ($505.92M) DOWNEY ($500.05M) BURBANK ($494.15M)
Automated signals based on claims-per-beneficiary ratios, single-code concentration, and OIG exclusion status. These are statistical outliers — not evidence of fraud. Learn more
| # | Provider | Total Paid | Flags |
|---|---|---|---|
| 1 | COUNTY OF SAN DIEGO | $76.54M | single-code billing |
| 2 | CONTRA COSTA COUNTY | $64.10M | single-code billing |
| 3 | COUNTY OF MERCED | $47.60M | single-code billing |
| 4 | COUNTY OF KERN | $44.53M | single-code billing |
| 5 | PALOMAR HEALTH | $42.20M | single-code billing |
| 6 | DIENTES COMMUNITY DENTAL CARE. | $40.94M | single-code billing |
| 7 | NATHAN O OGBATUE | $36.18M | 55 claims/bene |
| 8 | SAN JOAQUIN COUNTY BEHAVIORAL HEALTH SERVICES | $32.63M | single-code billing |
| 9 | ALAMEDA HEALTH SYSTEM | $30.62M | single-code billing |
| 10 | LA CLINICA DE LA RAZA INC | $29.73M | single-code billing |
| 11 | SAN DIMAS RETIREMENT CENTER LLC | $29.57M | single-code billing |
| 12 | GREENVILLE RANCHERIA | $28.79M | single-code billing |
| 13 | PROFESSIONAL IN HOME CARE, INC | $27.34M | single-code billing |
| 14 | MONTEBELLO ADULT DAY HEALTH CARE INC. | $26.80M | single-code billing |
| 15 | AGENCY PERSONAL CARE | $25.52M | single-code billing |
| 16 | COUNTY OF BUTTE | $25.34M | single-code billing |
| 17 | RJR CARE, INC. | $25.19M | single-code billing |
| 18 | ELIM HEALTHCARE, INC | $24.94M | single-code billing |
| 19 | ABRIA DEL CIELO | $23.29M | single-code billing |
| 20 | CENTRO DE SALUD DE LA COMUNIDAD DE SAN YSIDRO, INC. | $22.24M | single-code billing |
| 21 | COUNTY OF SAN MATEO | $22.14M | single-code billing |
| 22 | MOBILITY EXPRESS MEDICAL TRANSPORTATION | $21.74M | single-code billing |
| 23 | V & E MANAGEMENT, LLC | $21.64M | single-code billing |
| 24 | EMERALD HEALTH SERVICE INC | $21.08M | single-code billing |
| 25 | LAKEWOOD RESIDENTIAL CARE, LLC | $21.07M | single-code billing |
| # | Provider | City | Claims | Total Paid |
|---|---|---|---|---|
| 1 | LOS ANGELES COUNTY DEPARTMENT OF MENTAL HEALTH | LOS ANGELES | 30,870,976 | $6.78B |
| 2 | COUNTY OF SANTA CLARA | SAN JOSE | 4,656,205 | $1.73B |
| 3 | COUNTY OF RIVERSIDE | RIVERSIDE | 8,714,521 | $1.40B |
| 4 | CITY & COUNTY OF SAN FRANCISCO | SAN FRANCISCO | 6,184,815 | $1.34B |
| 5 | LOS ANGELES COUNTY DEPARTMENT OF PUBLIC HEALTH | ALHAMBRA | 14,999,665 | $1.13B |
| 6 | ALAMEDA COUNTY BEHAVIORAL HEALTH CARE | OAKLAND | 6,138,417 | $1.07B |
| 7 | COUNTY OF SAN BERNARDINO | SAN BERNARDINO | 6,532,613 | $1.05B |
| 8 | COUNTY OF SACRAMENTO | SACRAMENTO | 4,320,082 | $903.14M |
| 9 | COUNTY OF ORANGE | SANTA ANA | 4,933,775 | $806.66M |
| 10 | COUNTY OF FRESNO | FRESNO | 3,034,929 | $728.11M |
| 11 | CALL THE CAR | PASADENA | 26,606,071 | $723.94M |
| 12 | UNILAB CORPORATION | WEST HILLS | 111,637,602 | $668.50M |
| 13 | COUNTY OF SAN DIEGO | SAN DIEGO | 5,455,305 | $642.45M |
| 14 | NATERA, INC. | SAN CARLOS | 7,257,656 | $641.51M |
| 15 | COUNTY OF VENTURA | OXNARD | 3,115,644 | $598.20M |
| 16 | MILLENNIUM HEALTH, LLC | SAN DIEGO | 30,684,871 | $579.29M |
| 17 | CONTRA COSTA COUNTY | MARTINEZ | 3,178,417 | $536.98M |
| 18 | SHIELD CALIFORNIA HEALTH CARE CENTER INC | VALENCIA | 10,338,535 | $522.62M |
| 19 | COUNTY OF KERN | BAKERSFIELD | 4,280,553 | $473.44M |
| 20 | DAP HEALTH, INC. | DESERT HOT SPRINGS | 1,868,258 | $462.99M |
| 21 | BHPN, LLC | WALNUT CREEK | 2,404,841 | $350.10M |
| 22 | ALTAMED HEALTH SERVICES CORP. | LOS ANGELES | 2,506,116 | $305.80M |
| 23 | MINIMED DISTRIBUTION CORP. | NORTHRIDGE | 1,451,225 | $288.09M |
| 24 | COUNTY OF SANTA CRUZ | SANTA CRUZ | 1,698,884 | $276.25M |
| 25 | COUNTY OF TULARE | VISALIA | 2,865,391 | $273.74M |
| 26 | BYRAM HEALTHCARE CENTERS, INC. | TORRANCE | 3,888,341 | $271.78M |
| 27 | DAP HEALTH, INC. | EL CAJON | 1,582,590 | $270.21M |
| 28 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | 4,174,520 | $264.99M |
| 29 | STANFORD HEALTH CARE | STANFORD | 3,937,825 | $264.82M |
| 30 | SAC HEALTH SYSTEM | SAN BERNARDINO | 3,253,616 | $260.22M |
| 31 | SEVENTH-DAY ADVENTISTS LOMA LINDA UNIVERSITY MEDICAL CENTER | LOMA LINDA | 3,899,170 | $253.66M |
| 32 | PLANNED PARENTHOOD/ORANGE AND SAN BERNARDINO COUNTIES, INC. | ORANGE | 4,607,327 | $229.11M |
| 33 | GROSSMONT HOSPITAL CORPORATION | LA MESA | 2,443,214 | $226.70M |
| 34 | ANTELOPE VALLEY HEALTH CARE DISTRICT | LANCASTER | 2,405,107 | $222.29M |
| 35 | FAMILY HEALTHCARE NETWORK | FRESNO | 2,274,796 | $218.30M |
| 36 | NORTHERN VALLEY INDIAN HEALTH INC | WILLOWS | 850,292 | $217.07M |
| 37 | COUNTY OF LOS ANGELES | LOS ANGELES | 214,461 | $216.55M |
| 38 | PRECISION TOXICOLOGY, LLC | SAN DIEGO | 5,645,867 | $213.77M |
| 39 | SAN JOAQUIN BEHAVIORAL HEALTH SERVICES | STOCKTON | 3,632,423 | $211.49M |
| 40 | SUPER CARE INC | CITY OF INDUSTRY | 2,809,039 | $203.69M |
| 41 | CONTRA COSTA COUNTY | PITTSBURG | 2,525,560 | $202.20M |
| 42 | LA MAESTRA FAMILY CLINIC, INC. | SAN DIEGO | 3,509,617 | $202.14M |
| 43 | COUNTY OF SOLANO | FAIRFIELD | 598,414 | $200.57M |
| 44 | COUNTY OF SONOMA | SANTA ROSA | 627,961 | $195.09M |
| 45 | SANTA BARBARA COUNTY AUDITOR | SANTA BARBARA | 2,035,763 | $182.71M |
| 46 | GENETIC DISEASE SCREENING PROGRAM, STATE OF CA | RICHMOND | 925,570 | $182.46M |
| 47 | COUNTY OF SACRAMENTO | SACRAMENTO | 5,978,106 | $180.20M |
| 48 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SACRAMENTO | 2,705,327 | $177.55M |
| 49 | COUNTY OF SANTA CLARA | SAN JOSE | 1,389,652 | $175.86M |
| 50 | CITY OF HOPE NATIONAL MEDICAL CENTER | DUARTE | 1,273,291 | $175.72M |
| 51 | ALAMEDA HEALTH SYSTEM | OAKLAND | 4,052,086 | $172.03M |
| 52 | CONTRA COSTA COUNTY | SAN PABLO | 2,030,737 | $170.81M |
| 53 | BAKERSFIELD MEMORIAL HOSPITAL | BAKERSFIELD | 2,383,944 | $170.75M |
| 54 | KERN COUNTY HOSPITAL AUTHORITY | BAKERSFIELD | 2,746,824 | $169.30M |
| 55 | DEPARTMENT OF BEHAVIORAL HEALTH | FRESNO | 3,936,771 | $166.25M |
| 56 | BAY AREA COMMUNITY HEALTH | FREMONT | 1,210,035 | $164.55M |
| 57 | STANISLAUS COUNTY BHRS | MODESTO | 877,310 | $163.52M |
| 58 | BEVERLY RADIOLOGY MEDICAL GROUP III | LOS ANGELES | 3,146,832 | $163.38M |
| 59 | CHILDREN'S HOSPITAL & RESEARCH CENTER AT OAKLAND | OAKLAND | 2,536,928 | $161.81M |
| 60 | NEIGHBORHOOD HEALTHCARE | HEMET | 931,794 | $160.42M |
| 61 | CENTRO DE SALUD DE LA COMUNIDAD DE SAN YSIDRO, INC. | SAN YSIDRO | 3,140,188 | $157.26M |
| 62 | CALIFORNIA PSYCHCARE, INC. | VAN NUYS | 1,534,667 | $154.85M |
| 63 | UNIVERSITY OF CALIFORNIA IRVINE | ORANGE | 4,108,074 | $153.06M |
| 64 | FAMILY HEALTH CENTERS OF SAN DIEGO, INC | SAN DIEGO | 7,054,107 | $152.45M |
| 65 | LABORATORY CORPORATION OF AMERICA | SAN DIEGO | 64,360,026 | $147.14M |
| 66 | MYRIAD WOMEN'S HEALTH, INC. | SOUTH SAN FRANCISCO | 1,284,222 | $146.98M |
| 67 | ARROWHEAD REGIONAL MEDICAL CENTER | COLTON | 7,250,760 | $145.44M |
| 68 | PALOMAR HEALTH | ESCONDIDO | 1,459,443 | $144.14M |
| 69 | NORTH EAST MEDICAL SERVICES | SAN FRANCISCO | 6,069,351 | $142.96M |
| 70 | ALTAMED HEALTH SERVICES CORP | SOUTH GATE | 1,286,493 | $141.79M |
| 71 | UNILAB CORPORATION | SACRAMENTO | 29,528,771 | $141.24M |
| 72 | LAKE COUNTY TRIBAL HEALTH CONSORTIUM INC. | LAKEPORT | 374,863 | $140.63M |
| 73 | REEDLEY COMMUNITY HOSPITAL | HANFORD | 1,366,744 | $138.66M |
| 74 | MONTEREY COUNTY BEHAVIORAL HEALTH DIVISION | SALINAS | 1,118,523 | $137.69M |
| 75 | SHARP CHULA VISTA MEDICAL CENTER | CHULA VISTA | 1,386,238 | $137.52M |
| 76 | CHILDRENS HOSPITAL OF LOS ANGELES | LOS ANGELES | 2,945,648 | $136.95M |
| 77 | INVITAE CORPORATION | SAN FRANCISCO | 996,226 | $136.73M |
| 78 | COUNTY OF VENTURA | VENTURA | 3,011,483 | $136.15M |
| 79 | CITY OF LOS ANGELES | LOS ANGELES | 915,807 | $134.66M |
| 80 | SHARP MEMORIAL HOSPITAL | SAN DIEGO | 1,447,137 | $133.75M |
| 81 | DIGNITY HEALTH | SAN BERNARDINO | 2,345,963 | $133.09M |
| 82 | COUNTY OF SANTA CLARA | SAN JOSE | 1,413,349 | $132.37M |
| 83 | SHASTA COMMUNITY HEALTH CENTER | REDDING | 1,794,313 | $131.71M |
| 84 | SAN MATEO COUNTY | SAN MATEO | 809,118 | $131.05M |
| 85 | CENTRAL VALLEY SPECIALTY HOSPITAL INC | MODESTO | 39,493 | $130.74M |
| 86 | CHAPA-DE INDIAN HEALTH PROGRAM, INC. | AUBURN | 431,482 | $129.57M |
| 87 | CARDIOVASCULAR INSTITUTE OF SAN DIEGO INC | CHULA VISTA | 656,369 | $129.17M |
| 88 | H & H DRUG STORES, INC | GLENDALE | 4,216,880 | $128.31M |
| 89 | KAISER FOUNDATION HOSPITALS | SACRAMENTO | 2,700,377 | $128.11M |
| 90 | COUNTY OF SANTA CLARA | SAN JOSE | 1,202,800 | $127.88M |
| 91 | FALCK MOBILE HEALTH CORP | ORANGE | 1,455,034 | $127.74M |
| 92 | DJO, LLC | CARLSBAD | 1,152,990 | $127.18M |
| 93 | PERMANENTE MEDICAL GROUP INC | STOCKTON | 4,998,449 | $125.88M |
| 94 | NORTH COUNTY HEALTH PROJECT, INC. | SAN MARCOS | 3,749,684 | $125.68M |
| 95 | NEIGHBORHOOD HEALTHCARE | ESCONDIDO | 1,972,114 | $124.93M |
| 96 | RIVERSIDE UNIVERSITY HEALTH SYSTEMS - MEDICAL CENTER | MORENO VALLEY | 3,661,464 | $123.65M |
| 97 | COUNTY OF SHASTA | REDDING | 338,134 | $122.48M |
| 98 | PORT CITY OPERATING COMPANY, LLC | STOCKTON | 1,873,230 | $121.39M |
| 99 | CENTRO DE SALUD DE LA COMUNIDAD DE SAN YSIDRO, INC. | CHULA VISTA | 1,189,097 | $121.15M |
| 100 | JWCH INSTITUTE, INC. | LOS ANGELES | 2,200,577 | $119.49M |