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

Dr. Carl Grunfeld, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1659487635

Dr. Carl Grunfeld, MD is an Endocrinology, Diabetes & Metabolism Physician in San Francisco, 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.

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Practice location Address checks out

4150 Clement St Metabolism Section 111F
San Francisco, CA 94121-1545
Phone: (415) 750-2005
Fax: (415) 750-6927
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence G41853 (CA)

Record details

NPI number1659487635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESJuly 12, 2007

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