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

William H. Phillips, MD, Inc

Organization Specialist · NPI 1922283357

William H. Phillips, MD, Inc is a Specialist in Pleasanton, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5575 W Las Positas Blvd Ste 330
Pleasanton, CA 94588-5801
Phone: (925) 734-6644
Fax: (925) 734-9294
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence G52644 (CA)

Record details

NPI number1922283357
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Phillips — Physician · (925) 734-6655
NPI enumeratedJanuary 3, 2008
Last updated in NPPESJanuary 3, 2008
Mailing address5575 W Las Positas Blvd, Suite 330, Pleasanton, CA 94588-5801

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