We are a national pathology laboratory with a subspecialty in dermatopathology. We serve the Los Angeles area via courier and nation wide via FedEx. 

Meet the Doctors

We are a staff of physicians that base our success on our patients' long-term good health.  



American Specialty Laboratory laboratory services

20765 SUPERIOR ST
CHATSWORTH, CA 91311 

Phone: (818) 280-5321

Health Insurance

Office Hours (Pathology Department)

Monday - Friday: 8:00 - 5:00 pm.


Office Hours (COVID Testing)

Monday - Friday: 7:00AM - 6:00 pm


Laboratory services COVID Testing

Now offering COVID-19 Testing covid testing pathology services laboratory services

-Offering RT-PCR & 15-Minute Rapid Test

-Call (818)280-5321to make an appointment

-Walk-In patients welcome

-Offering on site Visits for: Homes, Companies , Schools, Nursing homes and more

We accept most public and private insurance plans. We also offer special pricing for cash-paying patients for most laboratory services & pathology services

Contact Us

  • Slide Preparation with 24 hour turn around time upon receipt of specimen.
  • Consultation (second opinion) by one of our American Board Certified Dermatopathologists.
  • Inhouse Immunohistochemistry and Special Stains.


CLIA#: 05D2043525

CA LIC#: CLF00342719