Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Douglas D Zhang, MD

Individual provider Geriatric Medicine (Family Medicine) Physician · NPI 1023074341

Dr. Douglas D Zhang, MD is a General Practice in San Leandro, California. Graduated from Texas Tech University Health Science Center School of Medicine in 1994, 32 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
32
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

13851 E 14th St
San Leandro, CA 94578-2628
Phone: (510) 351-2100
Fax: (510) 357-3389
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence A63200 (CA)

Record details

NPI number1023074341
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 25, 2006
Last updated in NPPESMarch 23, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL PRACTICE
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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