CLIA lookup
CLIA Labs in California
Every lab with an active CLIA certificate in California, by city.
22,905 labs in California hold an active CLIA certificate in the CMS file posted October 16, 2026.
18,275 of them hold a Certificate of Waiver.
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Certificates in California
- Certificate of Waiver
- 18,275
- Certificate for Provider-Performed Microscopy Procedures
- 1,909
- Certificate of Compliance
- 1,278
- Certificate of Accreditation
- 1,236
- Certificate of Registration
- 207
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
By city
- Los Angeles1,231 active labs
- San Diego683 active labs
- Fresno453 active labs
- Sacramento424 active labs
- San Francisco410 active labs
- Glendale389 active labs
- Bakersfield372 active labs
- San Jose324 active labs
- Long Beach278 active labs
- Torrance278 active labs
- Irvine269 active labs
- Riverside268 active labs
- Burbank249 active labs
- Pasadena239 active labs
- Anaheim220 active labs
- Beverly Hills219 active labs
- Newport Beach207 active labs
- Van Nuys205 active labs
- Santa Ana193 active labs
- Oakland164 active labs
- Modesto162 active labs
- Stockton162 active labs
- Orange161 active labs
- Huntington Beach152 active labs
- Santa Monica151 active labs
- San Bernardino141 active labs
- Encino140 active labs
- Thousand Oaks134 active labs
- North Hollywood133 active labs
- Redding125 active labs
- Chula Vista124 active labs
- Roseville120 active labs
- Upland120 active labs
- Costa Mesa119 active labs
- Rancho Cucamonga119 active labs
- Murrieta116 active labs
- Northridge116 active labs
- Oxnard116 active labs
- Santa Barbara115 active labs
- Sherman Oaks115 active labs
- Walnut Creek114 active labs
- Santa Rosa113 active labs
- Tarzana110 active labs
- Visalia110 active labs
- Ventura108 active labs
- Lancaster107 active labs
- Pomona105 active labs
- Fountain Valley104 active labs
- Corona103 active labs
- Fremont103 active labs
- Temecula103 active labs
- Garden Grove102 active labs
- Simi Valley101 active labs
- Salinas100 active labs
- Fullerton98 active labs
- Woodland Hills98 active labs
- Victorville94 active labs
- Clovis90 active labs
- Mission Viejo88 active labs
- Redlands88 active labs
- San Luis Obispo87 active labs
- Santa Maria87 active labs
- Arcadia83 active labs
- Laguna Hills83 active labs
- La Jolla82 active labs
- Escondido81 active labs
- Ontario81 active labs
- Downey80 active labs
- Oceanside80 active labs
- Palm Springs80 active labs
- West Covina80 active labs
- Whittier79 active labs
- Chico77 active labs
- Palm Desert77 active labs
- Encinitas76 active labs
- Carlsbad75 active labs
- Merced75 active labs
- El Cajon74 active labs
- La Mesa74 active labs
- Pleasanton74 active labs
- Moreno Valley73 active labs
- Palmdale73 active labs
- Santa Clarita73 active labs
- Inglewood71 active labs
- Covina70 active labs
- Westminster69 active labs
- Apple Valley68 active labs
- Glendora67 active labs
- Hemet67 active labs
- Reseda67 active labs
- Hayward66 active labs
- Tustin66 active labs
- Berkeley64 active labs
- El Centro64 active labs
- El Monte64 active labs
- Valencia64 active labs
- Camarillo63 active labs
- Chino63 active labs
- Folsom63 active labs
- Alhambra62 active labs
- Los Gatos62 active labs
- Rancho Mirage62 active labs
- Canoga Park61 active labs
- Monterey60 active labs
- Napa60 active labs
- Monterey Park59 active labs
- Gardena58 active labs
- San Ramon58 active labs
- Madera57 active labs
- Montebello57 active labs
- San Leandro57 active labs
- Fontana56 active labs
- Culver City55 active labs
- Concord54 active labs
- Westlake Village54 active labs
- Yuba City54 active labs
- Elk Grove53 active labs
- Los Alamitos53 active labs
- Fairfield52 active labs
- Indio52 active labs
- San Mateo52 active labs
- West Hills52 active labs
- Lodi51 active labs
- Mountain View51 active labs
- Redwood City51 active labs
- Santa Cruz50 active labs
- Granada Hills49 active labs
- Panorama City49 active labs
- Rosemead49 active labs
- Tracy49 active labs
- Vallejo49 active labs
- Chatsworth48 active labs
- Loma Linda48 active labs
- Palo Alto48 active labs
- San Juan Capistrano48 active labs
- San Rafael48 active labs
- Colton47 active labs
- Norwalk47 active labs
- Bellflower46 active labs
- Carmichael46 active labs
- Manteca46 active labs
- National City46 active labs
- Hanford45 active labs
- Huntington Park45 active labs
- Santa Clara45 active labs
- Turlock45 active labs
- Vista45 active labs
- Montclair44 active labs
- Buena Park41 active labs
- Agoura Hills40 active labs
- Antioch40 active labs
- Mission Hills40 active labs
- Redondo Beach40 active labs
- Rialto40 active labs
- San Clemente40 active labs
- Sun Valley40 active labs
- Auburn38 active labs
- Daly City38 active labs
- Hawthorne38 active labs
- Petaluma38 active labs
- Porterville38 active labs
- Vacaville38 active labs
- Cerritos37 active labs
- Lake Forest37 active labs
- San Gabriel37 active labs
- South San Francisco37 active labs
- Eureka36 active labs
- Livermore36 active labs
- Burlingame35 active labs
- Carson35 active labs
- Milpitas35 active labs
- Oroville35 active labs
- Sunnyvale35 active labs
- Paramount34 active labs
- San Marcos34 active labs
- Alameda33 active labs
- Brentwood33 active labs
- Grass Valley33 active labs
- Malibu33 active labs
- Novato33 active labs
- Aliso Viejo32 active labs
- Lynwood32 active labs
- Menlo Park32 active labs
- Placerville32 active labs
- Watsonville32 active labs
- West Hollywood32 active labs
- Campbell31 active labs
- Laguna Niguel31 active labs
- Lakewood31 active labs
- San Dimas31 active labs
- South Gate31 active labs
- Valley Village31 active labs
- Baldwin Park30 active labs
- Castro Valley30 active labs
- Hesperia30 active labs
- Laguna Beach30 active labs
- Rancho Cordova30 active labs
- Tulare30 active labs
- Marina Del Rey29 active labs
- Rocklin29 active labs
- San Fernando29 active labs
- San Pedro29 active labs
- Calabasas28 active labs
- Compton28 active labs
- Danville28 active labs
- La Quinta28 active labs
- Yorba Linda28 active labs
- Brea27 active labs
- Chino Hills27 active labs
- Delano27 active labs
- Hollister27 active labs
- Manhattan Beach27 active labs
- Menifee27 active labs
- Poway27 active labs
- Richmond27 active labs
- Calexico26 active labs
- Gilroy26 active labs
- La Crescenta26 active labs
- Sonora26 active labs
- Templeton26 active labs
- Duarte25 active labs
- El Segundo25 active labs
- Fair Oaks25 active labs
- Greenbrae25 active labs
- Lake Elsinore25 active labs
- Los Banos25 active labs
- Monrovia25 active labs
- Pleasant Hill25 active labs
- Azusa24 active labs
- Diamond Bar24 active labs
- La Habra24 active labs
- Lompoc24 active labs
- Mill Valley24 active labs
- Pico Rivera24 active labs
- Citrus Heights23 active labs
- Red Bluff23 active labs
- Ukiah23 active labs
- Woodland23 active labs
- Yucaipa23 active labs
- Barstow22 active labs
- Brawley22 active labs
- La Mirada22 active labs
- La Puente22 active labs
- Perris22 active labs
- Santee22 active labs
- Sylmar22 active labs
- Hacienda Heights21 active labs
- Temple City21 active labs
- Tujunga21 active labs
- Yucca Valley21 active labs
- Claremont20 active labs
- Davis20 active labs
- Placentia20 active labs
- Rancho Santa Margarita20 active labs
- Rowland Heights20 active labs
- Studio City20 active labs
- Crescent City19 active labs
- Dana Point19 active labs
- Dublin19 active labs
- La Palma19 active labs
- Martinez19 active labs
- Pittsburg19 active labs
- Sonoma19 active labs
- Sunland19 active labs
- Wildomar19 active labs
- Wilmington19 active labs
- Arroyo Grande18 active labs
- Beaumont18 active labs
- Fallbrook18 active labs
- Los Altos18 active labs
- Marysville18 active labs
- Moorpark18 active labs
- Morgan Hill18 active labs
- N Hollywood18 active labs
- North Hills18 active labs
- Pacoima18 active labs
- Santa Fe Springs18 active labs
- West Sacramento18 active labs
- Atascadero17 active labs
- Cathedral City17 active labs
- Foothill Ranch17 active labs
- Highland17 active labs
- Selma17 active labs
- Banning16 active labs
- Blythe16 active labs
- City Of Industry16 active labs
- Cypress16 active labs
- Reedley16 active labs
- Ridgecrest16 active labs
- Seal Beach16 active labs
- Coronado15 active labs
- Lafayette15 active labs
- Lincoln15 active labs
- Lomita15 active labs
- San Carlos15 active labs
- Santa Paula15 active labs
- Winnetka15 active labs
- Bell Gardens14 active labs
- Cupertino14 active labs
- Eastvale14 active labs
- El Dorado Hills14 active labs
- Emeryville14 active labs
- Goleta14 active labs
- Harbor City14 active labs
- Jackson14 active labs
- Ladera Ranch14 active labs
- Lakeport14 active labs
- San Jacinto14 active labs
- Solana Beach14 active labs
- South Lake Tahoe14 active labs
- Susanville14 active labs
- Walnut14 active labs
- Arcata13 active labs
- Artesia13 active labs
- Atwater13 active labs
- Cameron Park13 active labs
- Capitola13 active labs
- Dinuba13 active labs
- Lawndale13 active labs
- Norco13 active labs
- Oakdale13 active labs
- San Pablo13 active labs
- Truckee13 active labs
- Union City13 active labs
- Freedom12 active labs
- Imperial12 active labs
- Orinda12 active labs
- Pinole12 active labs
- Rohnert Park12 active labs
- Rolling Hills Estates12 active labs
- Stanton12 active labs
- Venice12 active labs
- Coachella11 active labs
- Healdsburg11 active labs
- Ojai11 active labs
- Pismo Beach11 active labs
- Sanger11 active labs
- Sun City11 active labs
- Tehachapi11 active labs
- Bell10 active labs
- Chowchilla10 active labs
- Foster City10 active labs
- La Verne10 active labs
- Maywood10 active labs
- Newhall10 active labs
- Orangevale10 active labs
- Patterson10 active labs
- Rancho Palos Verdes10 active labs
- San Bruno10 active labs
- Arleta9 active labs
- Bishop9 active labs
- Carmel9 active labs
- Clearlake9 active labs
- Coalinga9 active labs
- Colusa9 active labs
- Fortuna9 active labs
- Galt9 active labs
- Irwindale9 active labs
- Laguna Woods9 active labs
- Newbury Park9 active labs
- Porter Ranch9 active labs
- Saint Helena9 active labs
- South El Monte9 active labs
- South Pasadena9 active labs
- Spring Valley9 active labs
- Wasco9 active labs
- Yreka9 active labs
- Benicia8 active labs
- Cudahy8 active labs
- Desert Hot Springs8 active labs
- La Canada8 active labs
- Lathrop8 active labs
- Lindsay8 active labs
- Marina8 active labs
- Montrose8 active labs
- Oakhurst8 active labs
- Paso Robles8 active labs
- San Andreas8 active labs
- Scotts Valley8 active labs
- Sebastopol8 active labs
- Shafter8 active labs
- Signal Hill8 active labs
- Willits8 active labs
- Windsor8 active labs
- Anderson7 active labs
- Aptos7 active labs
- Big Bear Lake7 active labs
- Canyon Country7 active labs
- Capistrano Beach7 active labs
- Ceres7 active labs
- Commerce7 active labs
- Corona Del Mar7 active labs
- French Camp7 active labs
- Granite Bay7 active labs
- Hawaiian Gardens7 active labs
- King City7 active labs
- Larkspur7 active labs
- Lemon Grove7 active labs
- Lemoore7 active labs
- Mc Farland7 active labs
- Newark7 active labs
- Pacific Grove7 active labs
- Paradise7 active labs
- Soledad7 active labs
- Solvang7 active labs
- Adelanto6 active labs
- American Canyon6 active labs
- Fillmore6 active labs
- Fort Bragg6 active labs
- Fowler6 active labs
- Gridley6 active labs
- Kerman6 active labs
- Lake Arrowhead6 active labs
- Lakeside6 active labs
- Mariposa6 active labs
- Mckinleyville6 active labs
- Nipomo6 active labs
- Shingle Springs6 active labs
- Stanford6 active labs
- Vernon6 active labs
- Willows6 active labs
- Alpine5 active labs
- Arvin5 active labs
- Belmont5 active labs
- California City5 active labs
- Carpinteria5 active labs
- Castaic5 active labs
- Corcoran5 active labs
- Corning5 active labs
- Corte Madera5 active labs
- Del Mar5 active labs
- East Los Angeles5 active labs
- El Cerrito5 active labs
- Hercules5 active labs
- La Canada Flintridge5 active labs
- Lamont5 active labs
- Millbrae5 active labs
- Mira Loma5 active labs
- Mount Shasta5 active labs
- North Highlands5 active labs
- Pacific Palisades5 active labs
- Playa Vista5 active labs
- Port Hueneme5 active labs
- Salida5 active labs
- San Marino5 active labs
- Saratoga5 active labs
- Toluca Lake5 active labs
- Trabuco Canyon5 active labs
- Valley Center5 active labs
- Alamo4 active labs
- Albany4 active labs
- Angels Camp4 active labs
- Arnold4 active labs
- Brisbane4 active labs
- Dixon4 active labs
- Eagle Rock4 active labs
- El Sobrante4 active labs
- Grand Terrace4 active labs
- Gustine4 active labs
- Hermosa Beach4 active labs
- Imperial Beach4 active labs
- Jurupa Valley4 active labs
- Lake Isabella4 active labs
- Lake View Terrace4 active labs
- Livingston4 active labs
- Mendota4 active labs
- Moraga4 active labs
- Orland4 active labs
- Quincy4 active labs
- Ramona4 active labs
- Rancho Santa Fe4 active labs
- San Martin4 active labs
- Sausalito4 active labs
- Seaside4 active labs
- Sierra Madre4 active labs
- Soquel4 active labs
- Springville4 active labs
- Stevenson Ranch4 active labs
- Taft4 active labs
- Villa Park4 active labs
- Weaverville4 active labs
- Alturas3 active labs
- Anaheim Hills3 active labs
- Antelope3 active labs
- Avenal3 active labs
- Avila Beach3 active labs
- Bermuda Dunes3 active labs
- Bonsall3 active labs
- Borrego Springs3 active labs
- Burney3 active labs
- Calimesa3 active labs
- Cloverdale3 active labs
- East Palo Alto3 active labs
- Exeter3 active labs
- Gold River3 active labs
- Grover Beach3 active labs
- Guerneville3 active labs
- Hidden Valley Lake3 active labs
- Idyllwild3 active labs
- Indian Wells3 active labs
- Jamestown3 active labs
- Joshua Tree3 active labs
- Kentfield3 active labs
- Kingsburg3 active labs
- Live Oak3 active labs
- Loomis3 active labs
- Los Osos3 active labs
- Mammoth Lakes3 active labs
- Mather3 active labs
- Morro Bay3 active labs
- Needles3 active labs
- Newman3 active labs
- North Tustin3 active labs
- Orange Cove3 active labs
- Orcutt3 active labs
- Orosi3 active labs
- Palos Verdes Estates3 active labs
- Parlier3 active labs
- Penn Valley3 active labs
- Phelan3 active labs
- Portola3 active labs
- Rancho Bernardo3 active labs
- Riverbank3 active labs
- Sutter Creek3 active labs
- Tahoe City3 active labs
- Thermal3 active labs
- Waterford3 active labs
- Winchester3 active labs
- Woodlake3 active labs
- Acton2 active labs
- Alta Loma2 active labs
- Altadena2 active labs
- Atherton2 active labs
- Bangor2 active labs
- Big Bear City2 active labs
- Big River2 active labs
- Buellton2 active labs
- Calipatria2 active labs
- Calistoga2 active labs
- Campo2 active labs
- Castroville2 active labs
- Chester2 active labs
- Clayton2 active labs
- Colfax2 active labs
- Colma2 active labs
- Columbia2 active labs
- Cotati2 active labs
- Crestline2 active labs
- Delhi2 active labs
- Diamond Springs2 active labs
- Earlimart2 active labs
- East Rancho Dominguez2 active labs
- Escalon2 active labs
- Farmersville2 active labs
- Firebaugh2 active labs
- Gonzales2 active labs
- Greenfield2 active labs
- Greenville2 active labs
- Gualala2 active labs
- Half Moon Bay2 active labs
- Hollywood2 active labs
- Huron2 active labs
- Ione2 active labs
- Kelseyville2 active labs
- Lake Hughes2 active labs
- Lone Pine2 active labs
- Loyalton2 active labs
- Mcclellan Afb2 active labs
- Mentone2 active labs
- Mojave2 active labs
- Montecito2 active labs
- Mountain House2 active labs
- Newport Coast2 active labs
- Oak View2 active labs
- Oakley2 active labs
- Pacifica2 active labs
- Penryn2 active labs
- Portola Valley2 active labs
- Quartz Hill2 active labs
- Represa2 active labs
- Ripon2 active labs
- Riverdale2 active labs
- Running Springs2 active labs
- San Ysidro2 active labs
- Santa Rosa Valley2 active labs
- Santa Ynez2 active labs
- Scotia2 active labs
- Suisun City2 active labs
- Tiburon2 active labs
- Twentynine Palms2 active labs
- Universal City2 active labs
- Valley Springs2 active labs
- Vandenberg Afb2 active labs
- Weed2 active labs
- Williams2 active labs
- Willow Creek2 active labs
- Winterhaven2 active labs
- 100 Palms1 active lab
- 29 Palms1 active lab
- Alviso1 active lab
- Angelus Oaks1 active lab
- Angwin1 active lab
- Anza1 active lab
- Arbuckle1 active lab
- Avalon1 active lab
- Bay Point1 active lab
- Bear Valley1 active lab
- Ben Lomond1 active lab
- Bieber1 active lab
- Big Bear1 active lab
- Big Sur1 active lab
- Biola University1 active lab
- Blue Lake1 active lab
- Bonita1 active lab
- Boonville1 active lab
- Bradbury1 active lab
- Brookhurst Center1 active lab
- Browns Valley1 active lab
- Buttonwillow1 active lab
- Byron1 active lab
- Calabasas Hills1 active lab
- Cambria1 active lab
- Canby1 active lab
- Canyon Lake1 active lab
- Cardiff1 active lab
- Caruthers1 active lab
- Cayucos1 active lab
- Cedarville1 active lab
- Chemehuevi Valley1 active lab
- Cherry Valley1 active lab
- Coarsegold1 active lab
- Copperopolis1 active lab
- Cottonwood1 active lab
- Coulterville1 active lab
- Covelo1 active lab
- Cucamonga1 active lab
- Cutler1 active lab
- Del Rey Oaks1 active lab
- Discovery Bay1 active lab
- Dos Palos1 active lab
- Downieville1 active lab
- East Gridley1 active lab
- Edwards1 active lab
- Etna1 active lab
- Fairfax1 active lab
- Fall River Mills1 active lab
- Felton1 active lab
- Ferndale1 active lab
- Forest Knolls1 active lab
- Foresthill1 active lab
- Fort Hunter Liggett1 active lab
- Fort Jones1 active lab
- Friant1 active lab
- Garberville1 active lab
- Georgetown1 active lab
- Glassell1 active lab
- Glen Ellen1 active lab
- Gorman1 active lab
- Goshen1 active lab
- Graeagle1 active lab
- Greenacres1 active lab
- Groveland1 active lab
- Happy Camp1 active lab
- Hayfork1 active lab
- Helendale1 active lab
- Herald1 active lab
- Hillsborough1 active lab
- Hilmar1 active lab
- Holtville1 active lab
- Hoopa1 active lab
- Hughson1 active lab
- Hume1 active lab
- Kings Beach1 active lab
- Kirkwood1 active lab
- Klamath1 active lab
- La Grange1 active lab
- La Habra Heights1 active lab
- Lake Balboa1 active lab
- Lake Los Angeles1 active lab
- Laytonville1 active lab
- Lebec1 active lab
- Leona Valley1 active lab
- Littlerock1 active lab
- Los Altos Hills1 active lab
- Lost Hills1 active lab
- Lower Lake1 active lab
- Lucerne1 active lab
- Mad River1 active lab
- March Air Force Base1 active lab
- Markleeville1 active lab
- Mccloud1 active lab
- Mecca1 active lab
- Middletown1 active lab
- Midway City1 active lab
- Moffett Field1 active lab
- Morongo Valley1 active lab
- Moss Beach1 active lab
- Nevada City1 active lab
- Niland1 active lab
- North Fork1 active lab
- Oak Hills1 active lab
- Oak Park1 active lab
- Olympic Valley1 active lab
- Pacific Beach1 active lab
- Pajaro1 active lab
- Palo Cedro1 active lab
- Palos Verdes Peninsula1 active lab
- Patton1 active lab
- Pauma Valley1 active lab
- Pebble Beach1 active lab
- Pierce College1 active lab
- Pixley1 active lab
- Playa Del Rey1 active lab
- Pleasant Grove1 active lab
- Point Reyes Station1 active lab
- Pollock Pines1 active lab
- Prather1 active lab
- Prunedale1 active lab
- Pt Reyes Station1 active lab
- Rancho Dominguez1 active lab
- Redway1 active lab
- Redwood Valley1 active lab
- Rio Linda1 active lab
- Rodeo1 active lab
- Rolling Hills1 active lab
- Rosamond1 active lab
- Ross1 active lab
- Round Mountain1 active lab
- Salton City1 active lab
- San Geronimo1 active lab
- San Joaquin1 active lab
- San Juan Bautista1 active lab
- San Lorenzo1 active lab
- San Quentin1 active lab
- Santa Ysabel1 active lab
- Shadow Hills1 active lab
- Shaver Lake1 active lab
- Smith River1 active lab
- Spring Hill1 active lab
- Sunol1 active lab
- Tehama1 active lab
- Three Rivers1 active lab
- Tipton1 active lab
- Topanga1 active lab
- Travis Afb1 active lab
- Trona1 active lab
- Tuolumne1 active lab
- Twin Bridges1 active lab
- Univ Of Ca Medical Ctr1 active lab
- Valinda1 active lab
- Walnut Park1 active lab
- Weimar1 active lab
- Weitchpec1 active lab
- West Los Angeles1 active lab
- Westchester1 active lab
- Wilsona Gardens1 active lab
- Winters1 active lab
- Winton1 active lab
- Wofford Heights1 active lab
- Woodside1 active lab
- Yosemite1 active lab
- Yountville1 active lab
Related
Questions
How many CLIA labs are in California?
22,905 labs in California hold an active CLIA certificate in the CMS file posted October 16, 2026.
How many California labs have a Certificate of Waiver?
18,275 of the 22,905 active labs in California hold a Certificate of Waiver.
What does a CLIA number look like?
Ten characters: two digits, the letter D, then seven digits (for example 45D2100035). CMS assigns one to each laboratory certificate under the Clinical Laboratory Improvement Amendments.