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

Mr. Marc Daniel Oh, FNP-C, RN

Individual provider General Practice Registered Nurse · NPI 1235847625

Mr. Marc Daniel Oh, FNP-C, RN is a General Practice Registered Nurse in Castaic, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2022
Specialties on file
2
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

31541 Rocca Dr
Castaic, CA 91384-2598
Phone: (661) 207-1326
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95023436 (CA)
General Practice Registered Nurse Taxonomy 163WG0000X · Licence 95208278 (CA)

Record details

NPI number1235847625
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP-C , RN
Sole proprietorYes
NPI enumeratedNovember 14, 2022
Last updated in NPPESMay 8, 2023
Certification dateMay 8, 2023

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