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

Dr. Michael J. Drennan, MD

Individual provider Family Medicine Physician · NPI 1811029846

Dr. Michael J. Drennan, MD is a Family Medicine Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2007.

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

1050 Wisconsin St Potrero Hill Health Ctr
San Francisco, CA 94107-3328
Phone: (415) 920-1213
Fax: (415) 550-1639
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A32493 (CA)

Record details

NPI number1811029846
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 13, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1050 Wisconsin St, Potrero Hill Health Ctr., San Francisco, CA 94107-3328

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