1. Home
  2. Directory
  3. California
  4. Downey
  5. Psychiatry Neurology
  6. NPI Profile

DR. DUONG VIEN HO-HOANG D.O., M.ED.
NPI 1922364009
Psychiatry & Neurology - Child & Adolescent Psychiatry in Downey, CA

Active since April 03, 2012PECOS Enrolled
KAISER PERMANENTE, 9449 E. IMPERIAL HWY, DOWNEY, CA 90242(562) 807-6200 Get Directions Write a Review

NPPES record last updated: December 10, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Duong Vien Ho-hoang D.o., M.ed. NPPES

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

DR. DUONG VIEN HO-HOANG D.O., M.ED. (NPI 1922364009) is an individual child & adolescent psychiatry provider in Downey, California, licensed in California (20A13202) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922364009
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameDR. DUONG VIEN HO-HOANGCredential: D.O., M.ED.
Location AddressKAISER PERMANENTE, 9449 E. IMPERIAL HWYDowney, CA 90242
Mailing Address9449 Imperial HwyDowney, CA 90242-2814 · (562) 807-6200
Phone(562) 807-6200
Sole ProprietorYes
Enumeration DateApril 3, 2012
Last NPPES UpdateDecember 10, 2021
NPPES CertifiedDecember 7, 2021
✔ NPI 1922364009 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in CA · 20A13202
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
KAISER PERMANENTE, Downey, CA 90242
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Duong Vien Ho-hoang D.o., M.ed. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Duong Ho-hoang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
1.4 mi
Health Maintenance Organization
9400 ROSECRANS AVE
Bellflower, CA 90706
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1043242555 (562) 461-3000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Duong Ho-hoang's NPI number?

The NPI number for Duong Ho-hoang is 1922364009. It was assigned to this individual provider in the NPPES registry on April 3, 2012.

Where is Duong Ho-hoang located?

Duong Ho-hoang practices at Kaiser Permanente 9449 E. Imperial Hwy, Downey, CA 90242. The listed phone number is (562) 807-6200.

What is Duong Ho-hoang's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Duong Ho-hoang enrolled in Medicare?

Yes. Duong Ho-hoang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Duong Ho-hoang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Duong Ho-hoang reassigns Medicare benefits to Southern California Permanente Medical Group (Bellflower, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Duong Ho-hoang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Duong Ho-hoang was last updated on December 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.