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

Individual provider Dermatology Physician · NPI 1710023692

Dr. John A Lenahan, MD is a Dermatology Physician in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

595 Buckingham Way Ste #404
San Francisco, CA 94132-1909
Phone: (415) 665-1180
Fax: (415) 665-9350
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence G15296 (CA)

Record details

NPI number1710023692
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 29, 2007
Last updated in NPPESJuly 8, 2007

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