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

Maria Claire Demosthenous, DO

Individual provider Psychiatry Physician · NPI 1992904064

Maria Claire Demosthenous, DO is a Psychiatry Physician in San Bruno, California. Licensed in California and Illinois. Registered with an NPI since 2007.

Licensed in
CA, IL
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1001 Bayhill Dr 270
San Bruno, CA 94066-3062
Phone: (650) 552-9652
Fax: (650) 552-9348
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 20A10489 (CA)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 036118786 (IL)

Record details

NPI number1992904064
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 17, 2007
Last updated in NPPESFebruary 10, 2009

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