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

Grant Tupinyan

Individual provider Family Nurse Practitioner · NPI 1770331530

Grant Tupinyan is a Family Nurse Practitioner in Porter Ranch, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2024

Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 8551
Porter Ranch, CA 91327-8551
Phone: (818) 331-4949
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence F04240785 (CA)

Record details

NPI number1770331530
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMay 7, 2024
Last updated in NPPESMay 7, 2024
Certification dateMay 7, 2024
Mailing addressPo Box 8551, Porter Ranch, CA 91327-8551

Other providers in Porter Ranch