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St. Jude Affiliated Physicians
P.O. Box 4138
Fullerton, CA 92834

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Steve L. Chan, MD
Practice accepting new patients.

Steve L. Chan, MD

(909) 612-5835
Primary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Affiliated Physician
  • Additional Languages Spoken
    Cantonese, Mandarin Chinese, Taiwanese

Primary Office

660 N. Diamond Bar Blvd.
Suite 118
Diamond Bar, CA 91765
(909) 612-5835
(909) 612-5836
Fri 8:30 a.m. - 5:30 p.m.
Tue 8 a.m. - 12 p.m.
Thu 8:30 a.m. - 6 p.m.
Weekend Hours:
Every other Saturday 9 a.m. – 11:30 a.m.
Web Page:
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Physician Bio

The chance to help people and make their life easier is what I find most rewarding about being a doctor. I really enjoy talking to my patients, answering their questions, and helping them stay healthy. I chose internal medicine because I want to provide complete care to my patients. For instance, when my patients are admitted to the hospital or a nursing home, I continue to be involved in their care and visit them regularly. I believe in the importance of having one doctor follow you throughout your life, meeting your health needs.


  • Medical School:
    Albert Einstein College of Medicine - Bronx , NY
  • Internship:
    Veterans Affairs Medical Center - West Los Angeles , CA
  • Residency:
    Veterans Affairs Medical Center - Los Angeles , CA
  • Board Certified in Internal Medicine

Areas of Interest

  • Adult Medicine

Insurance ID Numbers

Aetna: *488034
Blue Cross: *0D3173
Blue Shield: 00A630150
CIGNA: 8200682207
CIGNA Select: 8200682012
Health Net: 3206077350
Health Net Senior: 5150077350
SCAN: 865-25429
United Healthcare: *0183440021

*Provider ID is the same for both HMO and Medicare Advantage Plans