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

Frederica S. Lofquist, MD

Individual provider Obstetrics Physician · NPI 1750458873

Frederica S. Lofquist, MD is an Obstetrics Physician in San Francisco, California. Works from 2 locations. Licensed in California and Washington.

Licensed in
CA, WA
In the registry since
2006
Specialties on file
3
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

3838 California St 316
San Francisco, CA 94118-1522
Phone: (415) 379-9600
Fax: (415) 379-9823
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 834 Sheridan St, Port Townsend, WA 98368-2443 — (360) 344-0403

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD61485190 (WA)
Obstetrics Physician Taxonomy 207VX0000X · Licence G65301 (CA)
Gynecology Physician Taxonomy 207VG0400X · Licence G65301 (CA)

Record details

NPI number1750458873
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 30, 2006
Last updated in NPPESDecember 9, 2025
Certification dateDecember 9, 2025

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