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

Individual provider Psychiatry Physician · NPI 1770648628

Ralph D. Bien, MD is a Psychiatry Physician in San Rafael, 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

750 Las Gallinas Ave Ste 213
San Rafael, CA 94903-3438
Phone: (415) 461-4534
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G034558 (CA)

Record details

NPI number1770648628
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 22, 2006
Last updated in NPPESJuly 9, 2007
Mailing address750 Las Gallinas Ave, Suite 213, San Rafael, CA 94903-3438

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