MARCIA CAROLYN OEN PA-C, MPH
NPI 1174098727
Physician Assistant - Surgical in Whittier, CA

Q: What is Marcia Oen's NPI number?

The NPI number for Marcia Oen is 1174098727. It was assigned to this individual provider in the NPPES registry on October 10, 2018.

Q: What is Marcia Oen's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Surgical, with taxonomy code 363AS0400X.

Q: When was this NPI record last updated?

The NPPES record for Marcia Oen was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 10, 2018PECOS Enrolled

12401 WASHINGTON BLVD, WHITTIER, CA 90602(562) 698-0811(562) 789-5902 Get Directions Write a Review

NPPES record last updated: September 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 10, 2025, May 10, 2022, Oct 10, 2018 (3 updates tracked since 2018).

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About Marcia Carolyn Oen Pa-c, Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARCIA CAROLYN OEN PA-C, MPH (NPI 1174098727) is an individual surgical provider in Whittier, California and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2018).

NPPES Registry Identity

NPI1174098727

Entity TypeIndividualFemale

Primary Taxonomy363AS0400X

Provider Legal NameMARCIA CAROLYN OENCredential: PA-C, MPH

Location Address12401 WASHINGTON BLVDWhittier, CA 90602-1006

Mailing Address12462 Putnam St Ste 500Whittier, CA 90602-1049 · (562) 789-5449 · Fax (562) 789-4449

Phone(562) 698-0811

Fax(562) 789-5902

Sole ProprietorNo

Medical School CMSGeorge Washington University School Of MedicineGraduated 2018

Enumeration DateOctober 10, 2018

Last NPPES UpdateSeptember 10, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2025

✔ NPI 1174098727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · SurgicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AS0400X

12401 WASHINGTON BLVD, Whittier, CA 90602

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marcia Carolyn Oen Pa-c, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8820335219

PECOS Enrollment IDI20251114001416

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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