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DR. DUC CHI NGUYEN M.D.
NPI 1720032022
Emergency Medicine in Harbor City, CA

Active since May 20, 2006PECOS Enrolled
25825 VERMONT AVE, MEDICAL STAFF OFFICE, HARBOR CITY, CA 90710(310) 325-5111 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Duc Chi Nguyen M.d. NPPES

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

DR. DUC CHI NGUYEN M.D. (NPI 1720032022) is an individual emergency medicine provider in Harbor City, California, licensed in California (A87268) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720032022
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. DUC CHI NGUYENCredential: M.D.
Location Address25825 VERMONT AVE, MEDICAL STAFF OFFICEHarbor City, CA 90710-3518
Mailing Address314 S Deming StSanta Ana, CA 92704-1028 · (310) 963-4382
Phone(310) 325-5111
Sole ProprietorNo
Enumeration DateMay 20, 2006
Last NPPES UpdateDecember 1, 2021
✔ NPI 1720032022 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A87268
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
25825 VERMONT AVE, Harbor City, CA 90710
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Duc Chi Nguyen M.d. 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 Duc Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
Same address
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
20 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

SEAN KOH PHARM.D.
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
ALYSSA QUAN PHARM.D.
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2238
JOYHAN JAY SUNG RRT-NPS
Respiratory Therapist, Registered (Neonatal/Pediatrics)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2648
RANDEL R. KING MD
Internal Medicine (Pulmonary Disease)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
TIM TAKESHI SUGIYAMA
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2239
RYOKEI K. IMAI MD
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
JENNIFER WING-YUN LAM MD
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
CHRISTOPHER LOLACHI MD
Otolaryngology (Plastic Surgery within the Head & Neck)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111

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 Duc Nguyen's NPI number?

The NPI number for Duc Nguyen is 1720032022. It was assigned to this individual provider in the NPPES registry on May 20, 2006.

Where is Duc Nguyen located?

Duc Nguyen practices at 25825 Vermont Ave Medical Staff Office, Harbor City, CA 90710. The listed phone number is (310) 325-5111.

What is Duc Nguyen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Duc Nguyen enrolled in Medicare?

Yes. Duc Nguyen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Duc Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Duc Nguyen reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor City, 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 Duc Nguyen'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 Duc Nguyen was last updated on December 1, 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.