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Blood Tests in California

Top Cities for Blood Testing

Fresno 8 labs San Jose 7 labs Sacramento 7 labs Los Angeles 6 labs Stockton 5 labs San Francisco 5 labs Long Beach 5 labs Modesto 4 labs Glendale 4 labs Orange 4 labs

All California Locations by City

Q X Z

A

11

Agoura Hills (1) Alameda (1) Alhambra (1) Aliso Viejo (1) Anaheim (3) Anderson (1) Antioch (1) Apple Valley (1) Arcadia (1) Atwater (1) Auburn (1)

B

12

Bakersfield (3) Banning (1) Barstow (1) Beaumont (1) Bellflower (1) Benicia (1) Berkeley (1) Beverly Hills (2) Big Bear Lake (1) Brawley (1) Brentwood (1) Burbank (2)

C

19

Camarillo (3) Cameron Park (1) Carmichael (3) Castro Valley (1) Ceres (1) Chico (1) Chino (2) Chowchilla (1) Chula Vista (2) Citrus Heights (1) Clovis (3) Coalinga (1) Colusa (1) Concord (1) Corning (1) Corona (2) Costa Mesa (2) Covina (1) Cupertino (1)

D

7

Daly City (1) Dana Point (1) Davis (1) Del Rey Oaks (1) Diamond Bar (1) Downey (2) Dublin (1)

E

7

Eastvale (1) El Cajon (1) El Centro (1) El Dorado Hills (1) Elk Grove (1) Encinitas (1) Escondido (1)

F

12

Fair Oaks (1) Fairfield (1) Fallbrook (1) Folsom (2) Fontana (1) Foothill Ranch (1) Foster City (1) Fountain Valley (2) Freedom (1) Fremont (2) Fresno (8) Fullerton (1)

G

8

Garden Grove (1) Gilroy (2) Glendale (4) Glendora (1) Gold River (1) Grass Valley (2) Greenbrae (1) Grover Beach (1)

H

9

Hacienda Heights (1) Hanford (1) Hawthorne (1) Hayward (1) Healdsburg (1) Hemet (2) Hercules (1) Hesperia (1) Huntington Beach (4)

I

3

Indio (1) Inglewood (1) Irvine (3)

J

1

K

1

L

19

La Mesa (2) La Palma (1) La Quinta (1) Lafayette (1) Laguna Hills (1) Laguna Niguel (1) Lake Elsinore (1) Lakeport (1) Lancaster (1) Larkspur (1) Lincoln (1) Livermore (1) Lodi (2) Loma Linda (1) Long Beach (5) Los Alamitos (1) Los Angeles (6) Los Banos (1) Lynwood (1)

M

19

Madera (1) Manteca (2) Marina (1) Mariposa (1) Menifee (1) Menlo Park (1) Merced (3) Mill Valley (1) Millbrae (1) Milpitas (1) Mission Hills (1) Mission Viejo (2) Modesto (4) Montebello (1) Montecito (1) Monterey (1) Morgan Hill (1) Mountain View (2) Murrieta (3)

N

7

Napa (1) National City (1) Newbury Park (1) Newport Beach (2) North Hollywood (1) Northridge (1) Novato (1)

O

9

Oakdale (1) Oakhurst (1) Oakland (2) Oceanside (1) Ojai (1) Orange (4) Orland (1) Oroville (1) Oxnard (3)

P

16

Palm Desert (1) Palm Springs (1) Palmdale (2) Paradise (1) Pasadena (3) Patterson (1) Penn Valley (1) Petaluma (1) Pittsburg (1) Placentia (1) Placerville (1) Playa Vista (1) Pleasanton (1) Pomona (1) Porterville (1) Poway (1)

R

11

Rancho Cucamonga (1) Rancho Santa Margarita (1) Red Bluff (1) Redding (2) Redlands (1) Redondo Beach (1) Reedley (1) Ridgecrest (1) Riverside (4) Rolling Hills Estates (1) Roseville (4)

S

41

Sacramento (7) Salinas (1) San Bernardino (2) San Carlos (1) San Clemente (2) San Diego (3) San Dimas (1) San Francisco (5) San Gabriel (1) San Jose (7) San Leandro (1) San Luis Obispo (1) San Mateo (1) San Pablo (1) San Pedro (1) San Rafael (2) San Ramon (1) Sanger (1) Santa Ana (3) Santa Barbara (1) Santa Clara (1) Santa Clarita (2) Santa Cruz (1) Santa Maria (1) Santa Monica (1) Santa Paula (1) Santa Rosa (1) Santee (1) Scotts Valley (1) Seal Beach (1) Sebastopol (1) Selma (1) Shasta Lake (1) Sherman Oaks (2) Simi Valley (2) Solvang (1) Sonoma (1) Sonora (1) Stockton (5) Sun City (1) Sunnyvale (1)

T

9

Tarzana (3) Tehachapi (1) Temecula (3) Thousand Oaks (1) Torrance (2) Tracy (1) Tulare (1) Turlock (2) Tustin (1)

U

1

V

7

Vacaville (1) Vallejo (1) Van Nuys (1) Ventura (2) Victorville (1) Visalia (2) Vista (1)

W

8

Walnut Creek (1) West Covina (1) West Hills (2) West Sacramento (1) Westlake Village (1) Westminster (1) Whittier (2) Woodland (1)

Y

3

Yuba City (1) Yucaipa (1) Yucca Valley (1)

California Blood Testing FAQ

How many Quest Diagnostics locations are in California?

We work with 358 Quest Lab Locations across California. Browse by city to see addresses, hours, and the most-ordered tests near you.

Do I need an appointment for a blood test in California?

No. Most Quest Diagnostics locations in California accept walk-ins during business hours. Scheduling an appointment online is recommended to reduce wait times.

What should I bring to the lab?

Bring a valid photo ID and the lab requisition we email you after your order. If your test requires fasting, avoid food and drinks other than water for 8–12 hours before your visit.

How long does a blood draw take?

The draw itself takes about 5 minutes. Most visits, including check-in, are done in 15 minutes or less.

Do I need a doctor's order for lab work in California?

No. A licensed physician reviews and approves all lab orders on your behalf — included with every test you order on DiscountedLabs.com. No separate doctor visit needed.

When will I get my results?

Most results are ready in 2–10 business days. Hormone panels using LC/MS may take slightly longer. You'll get a notification by email and SMS as soon as your results are available.

Are Quest Diagnostics labs in California open on weekends?

Hours vary by location. Many Quest labs in California offer Saturday hours. Check the location details after picking your city for specific hours.

Can I use my insurance for lab tests?

Our tests are self-pay and do not require insurance. HSA and FSA cards are accepted.

What types of tests can I order in California?

Hundreds of individual blood tests and bundled lab panels — including thyroid, hormones, metabolic, lipid, vitamin levels, cancer markers, and more. Browse our full catalog to find the test you need.

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