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

Dr. Charles S. Landefeld, MD

Individual provider Internal Medicine Physician · NPI 1962440941

Dr. Charles S. Landefeld, MD is an Internal Medicine Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

2501 Ocean Ave
San Francisco, CA 94143-0001
Phone: (415) 750-6625
Fax: (415) 750-6641
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 G43841 (CA)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence G43841 (CA)

Record details

NPI number1962440941
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 3, 2006
Last updated in NPPESSeptember 11, 2025

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