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Douglas Clark MD
Practice accepting new patients.

Douglas Clark MD

(714) 705-2120
Primary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group

Primary Office

12942 Harbor Blvd.
Garden Grove, CA 92840
(714) 705-2120
(714) 705-8139
Web Page:
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Physician Bio

Board-certified in internal medicine, Dr. Douglas Clark has been in private practice for over 28 years. Although his primary focus is internal medicine, he also has a special interest in cardiology.

He believes in working with patients to ensure all questions are answered before a visit is complete and in treating the whole person - body, mind and spirit, and was voted best doctor in Garden Grove in the Garden Grove Journal in 2011 and 2012.

When he's not caring for patients, Dr. Clark also enjoys playing the piano, bodysurfing and serving medical missions.


  • Medical School:
    Loma Linda University School of Medicine
  • Internship:
    White Memorial Medical Center
  • Residency:
    White Memorial Medical Center
  • Board Certified in Internal Medicine


Voted "best doctor in Garden Grove" - Garden Grove Journal, 2011, 2012

Insurance ID Numbers

Aetna: 758728
Blue Cross: 1BG359
Blue Shield: 00G508620
Blue Shield 65+: 6S0600
Blue Shield CHOICE (Medicare): QE0445
CIGNA: 5314750012
Health Net: 3203502949
Health Net Senior: 5147502949
SCAN: 086329777
United Healthcare: 0183460089