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

Richard B Williams PHD MD Inc

Organization Internal Medicine Physician · NPI 1225289788

Richard B Williams PHD MD Inc is an Internal Medicine Physician in South Pasadena, 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

630 Mission St Ste 1
South Pasadena, CA 91030-3038
Phone: (626) 799-3616
Fax: (626) 799-4001
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G58242 (CA)

Record details

NPI number1225289788
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Richard Williams — President · (626) 799-3616
NPI enumeratedOctober 2, 2008
Last updated in NPPESOctober 2, 2008
Mailing addressPo Box 800817, Santa Clarita, CA 91380-0817

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