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

David M Feinstein, MD

Individual provider Internal Medicine Physician · NPI 1609810597

David M Feinstein, MD is an Internal Medicine Physician in Sunnyvale, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1413 Knowlton Dr
Sunnyvale, CA 94087-3152
Phone: (805) 602-0386
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G83862 (CA)

Record details

NPI number1609810597
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 15, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1413 Knowlton Dr, Sunnyvale, CA 94087-3152

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