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

Dr. Nelson Alphonso, MD

Individual provider Surgery Physician · NPI 1992759187

Dr. Nelson Alphonso, MD is a Surgery 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

400 Parnassus Ave
San Francisco, CA 94143-2202
Phone: (415) 353-2813
Fax: (415) 476-9678
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A90383 (CA)

Record details

NPI number1992759187
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 20, 2006
Last updated in NPPESJuly 23, 2008
Mailing address1635 Divisadero Street, Suite 625, Box 1821, San Francisco, CA 94143-0001

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