ANDREW LAM-DINH NGUYEN MD
NPI 1659021269
Emergency Medicine in San Dimas, CA

Active since March 26, 2022PECOS EnrolledAccepts Medicare Assignment
1350 W COVINA BLVD, SAN DIMAS, CA 91773(909) 599-6811 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 26, 2025, Sep 22, 2024 (2 updates tracked since 2024).

About Andrew Lam-dinh Nguyen Md NPPES

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

ANDREW LAM-DINH NGUYEN MD (NPI 1659021269) is an individual emergency medicine provider in San Dimas, California, licensed in California (A201270) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Medical Center, and maintains a secondary practice location in La Palma.

NPPES Registry Identity

NPI1659021269
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameANDREW LAM-DINH NGUYENCredential: MD
Location Address1350 W COVINA BLVDSan Dimas, CA 91773-3245
Mailing Address1350 W Covina BlvdSan Dimas, CA 91773-3245 · (909) 599-6801
Sole ProprietorNo
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 2022
Enumeration DateMarch 26, 2022
Last NPPES UpdateJune 26, 20252 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
NPI 1659021269 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 · A201270
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.

1350 W COVINA BLVD, San Dimas, CA 91773

Secondary Practice Location 1

Location 17901 Walker StLA Palma, CA 90623-1722 · Phone (714) 670-7400

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Andrew Lam-dinh Nguyen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800303942
PECOS Enrollment IDI20250724002732
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Good Samaritan Hospital Medical Center

Acute Care Hospitals · West Islip, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330286
Location1000 Montauk HighwayWest Islip, NY 11795 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91773 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.

Pathology (Anatomic Pathology & Clinical Pathology)
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Pathology (Anatomic Pathology & Clinical Pathology)
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Anesthesiology
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Emergency Medicine
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Emergency Medicine
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Emergency Medicine
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Emergency Medicine
1350 W COVINA BLVD
SAN DIMAS, CA 91773
Emergency Medicine
1350 W COVINA BLVD
SAN DIMAS, CA 91773

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 Andrew Nguyen's NPI number?

The NPI number for Andrew Nguyen is 1659021269. It was assigned to this individual provider in the NPPES registry on March 26, 2022.

Where is Andrew Nguyen located?

Andrew Nguyen practices at 1350 W Covina Blvd, San Dimas, CA 91773. The listed phone number is (909) 599-6811.

What is Andrew Nguyen's specialty?

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

Is Andrew Nguyen enrolled in Medicare?

Yes. Andrew Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Andrew Nguyen affiliated with any hospitals?

According to CMS data, Andrew Nguyen is affiliated with Good Samaritan Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Andrew Nguyen was last updated on June 26, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.