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

Dr. Matthew Sinclair Stubblefield, MD

Individual provider Psychiatry Physician · NPI 1326215740

Dr. Matthew Sinclair Stubblefield, MD is a Psychiatry Physician in Palo Alto, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
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

3303 Alma St
Palo Alto, CA 94306-3501
Phone: (650) 856-0406
Fax: (650) 856-0140
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G072442 (CA)

Record details

NPI number1326215740
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 14, 2008
Last updated in NPPESMay 14, 2008

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