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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DUYEN DIEP
NPI 1801405949
Counselor - School in Irvine, CA

Active since July 24, 2020
5050 BARRANCA PKWY, IRVINE, CA 92604(949) 936-5000 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 14, 2026, Jul 24, 2020 (2 updates tracked since 2020).

About Duyen Diep NPPES

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

DUYEN DIEP (NPI 1801405949) is an individual school provider in Irvine, California and active in the NPI registry since July 2020.

NPPES Registry Identity

NPI1801405949
Entity TypeIndividualFemale
Primary Taxonomy101YS0200X
Provider Legal NameDUYEN DIEP
Location Address5050 BARRANCA PKWYIrvine, CA 92604-4652
Mailing Address5050 Barranca PkwyIrvine, CA 92604-4652 · (949) 936-5000
Phone(949) 936-5000
Sole ProprietorNo
Enumeration DateJuly 24, 2020
Last NPPES UpdateAugust 14, 20262 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
✔ NPI 1801405949 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · SchoolBehavioral Health & Social Service Providers
Taxonomy Code101YS0200X
5050 BARRANCA PKWY, Irvine, CA 92604
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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.

KATY SCHLOSSBERG
Occupational Therapist (Pediatrics)
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-5800
MS. NATALIE MICHELLE BRADSHAW
Speech-Language Pathologist
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 255-3754
EMILY SHLEPPEY
Occupational Therapist
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-5000
IRVINE UNIFIED SCHOOL DISTRICT
Local Education Agency (LEA)
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-5230
AMY YANNSHIN LEE M.A., OTR
Occupational Therapist
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-5853
R. MELEAH SHANK
Counselor (School)
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-5574
MRS. ALANNA L REEVE
Occupational Therapist
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (949) 936-8550
NICOLE SMYLES RN
Registered Nurse (School)
5050 BARRANCA PKWY
IRVINE, CA 92604
Orange County (626) 991-3609

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Duyen Diep's NPI number?

The NPI number for Duyen Diep is 1801405949. It was assigned to this individual provider in the NPPES registry on July 24, 2020.

Where is Duyen Diep located?

Duyen Diep practices at 5050 Barranca Pkwy, Irvine, CA 92604. The listed phone number is (949) 936-5000.

What is Duyen Diep's specialty?

The primary specialty registered for this NPI is Counselor, specializing in School, with taxonomy code 101YS0200X.

When was this NPI record last updated?

The NPPES record for Duyen Diep was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.