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

Dr. Donald Armstrong, MD

Individual provider Gynecology Physician · NPI 1881672665

Dr. Donald Armstrong, MD is a Gynecology Physician in Fullerton, California. Practices as a sole proprietor. Licensed in California.

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

100 E Valencia Mesa Dr Ste #215
Fullerton, CA 92835-3813
Phone: (714) 879-6533
Fax: (714) 879-3037
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gynecology Physician (primary) Taxonomy 207VG0400X · Licence G36898 (CA)

Record details

NPI number1881672665
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 3, 2006
Last updated in NPPESOctober 7, 2011
Mailing address100 E Valencia Mesa Dr, Suite #215, Fullerton, CA 92835-3813

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