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

William R Crain, MD

Individual provider Dermatology Physician · NPI 1669523338

William R Crain, MD is a Dermatology Physician in Oakland, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
2
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

3300 Webster St #509
Oakland, CA 94609-3117
Phone: (510) 452-4900
Fax: (510) 452-2152
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Procedural Dermatology Physician (primary) Taxonomy 207NS0135X · Licence C031924 (CA)
Dermatology Physician Taxonomy 207N00000X · Licence C031924 (CA)

Record details

NPI number1669523338
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 16, 2007
Last updated in NPPESSeptember 11, 2025

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