Contact Pathology Labs

Please Note: Beginning January 29, 2014, our Canyon Country care center will be relocating to Valencia. You can visit us at 23838 Valencia Blvd., Suite #140, Valencia, CA 91355. No appointment is necessary. Our hours are Monday through Friday 8 a.m.-Noon and from 1-5 p.m. We look forward to serving you.

Children's Hospital Los Angeles provides specialized pathology testing services for children and families. Our staff are adept at compassionately interacting with children and families and our laboratories offer community physicians:

  • Same day or STAT testing
  • Full range of tests available 
  • Testing with minimum specimen volumes

Patient Service Centers

Walk-ins are always welcome, which means no appointment is necessary! All ages are welcome, from neonates to adults.

  • The Children's Laboratory is accredited by the College of American Pathologists.
  • At all times, a board-certified pathologist is available for consultation.

Children's Hospital Los Angeles provides laboratory services at its main campus and the following satellite locations:

Children's Laboratory - Children's Hospital Los Angeles

4650 Sunset Blvd., #32
Los Angeles, CA 90027


Phone: 877-KIDZLAB (877-543-9522)
Fax: 323-361-6157

Walk-in service: Monday-Friday, 6 a.m.-6 p.m.
Saturday: 7 a.m.-12:30 p.m.
Sunday: Closed

Outpatient services on the 2nd floor Duque Building will not be available outside of these business hours.

Children's Laboratory of Arcadia

468 E. Santa Clara St.
Arcadia, CA 91006

Phone: 877-543-9522
Fax: 626-359-1019

Walk-in service: Monday - Friday, 8 a.m. - noon and 1 p.m. - 5 p.m.

Children's Laboratory of Encino

5353 Balboa Blvd., Suite #100
Encino, CA 91316


Phone: 877-543-9522
Fax: 818-728-4932

Walk-in service: Monday - Friday, 9 a.m. - 6 p.m.
Saturday: 9 a.m.-1 p.m. (appointment preferred)

Children's Laboratory of Pasadena

800 S. Fairmount Ave., Suite #115
Pasadena, CA 91105


Phone: 877-543-9522
Fax: 626-578-1906

Walk-in service: Monday-Friday, 7 a.m.-6 p.m. (open during lunch hours)

Children's Laboratory of Valencia

23838 Valencia Blvd., Suite #140
Valencia, CA 91355


Phone: 877-543-9522

Walk-in service: Monday-Friday, 8 a.m.–noon and 1–5 p.m.

For genetic testing, please call 877-543-9522.