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

Dr. Jeffrey Williams, MD, PHD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1942304977

Dr. Jeffrey Williams, MD, PHD is an Endocrinology, Diabetes & Metabolism Physician in Santa Cruz, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

1595 Soquel Dr Ste 411
Santa Cruz, CA 95065-1719
Phone: (831) 465-7778
Fax: (831) 475-0351
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence G52869 (CA)

Record details

NPI number1942304977
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedSeptember 11, 2006
Last updated in NPPESJuly 9, 2007
Mailing address1595 Soquel Dr, Ste 330, Santa Cruz, CA 95065-1719

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