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

Marcia Carolyn Oen, PA-C, MPH

Individual provider Surgical Physician Assistant · NPI 1174098727

Marcia Carolyn Oen, PA-C, MPH is a Physician Assistant in Whittier, California. Graduated from George Washington University School of Medicine in 2018, 8 years ago. Practices with PIH Health Physicians, a 614-clinician group and accepts Medicare assignment.

Years since qualifying
8
Trained at
George Washington University School of Medicine
In the registry since
2018
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

12401 Washington Blvd
Whittier, CA 90602-1006
Phone: (562) 698-0811
Fax: (562) 789-5902
Show map & directions

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

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X

Record details

NPI number1174098727
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C , MPH
Sole proprietorNo
NPI enumeratedOctober 10, 2018
Last updated in NPPESSeptember 10, 2025
Certification dateSeptember 10, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Pih Health Physicians — 614 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Whittier