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

MS. Nancy Itsuyo Okamoto, NP

Individual provider Nurse Practitioner · NPI 1508082645

MS. Nancy Itsuyo Okamoto, NP is a Nurse Practitioner 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?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

50 Phelan Ave Health Center 100
San Francisco, CA 94112-1821
Phone: (415) 239-3192
Fax: (415) 239-3193
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 191280 (CA)

Record details

NPI number1508082645
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedApril 17, 2007
Last updated in NPPESJuly 8, 2007

Other providers in San Francisco