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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.

KEN D. NGUYEN, M.D., INC.
NPI 1043846108
Internal Medicine - Gastroenterology in Temple City, CA

Active since March 20, 2020
6271 ROSEMEAD BLVD, TEMPLE CITY, CA 91780(626) 898-4560(844) 407-0584 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 8, 2026, Sep 4, 2026, Mar 20, 2020 (3 updates tracked since 2020).

About Ken D. Nguyen, M.d., Inc. NPPES

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

KEN D. NGUYEN, M.D., INC. (NPI 1043846108) is a healthcare organization registered as a gastroenterology in Temple City, California and active in the NPI registry since March 2020. The organization lists Ken Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1043846108
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameKEN D. NGUYEN, M.D., INC.
Location Address6271 ROSEMEAD BLVDTemple City, CA 91780-1562
Mailing AddressPo Box 597Temple City, CA 91780-0597 · (626) 898-4560 · Fax (626) 898-4561
Phone(626) 898-4560
Fax(844) 407-0584
Organization SubpartNo
Authorized OfficialKen NguyenPresident · (626) 898-4560
Enumeration DateMarch 20, 2020
Last NPPES UpdateSeptember 8, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2026
✔ NPI 1043846108 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X
6271 ROSEMEAD BLVD, Temple City, CA 91780
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 4

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

DR. KEN DUONG NGUYEN M.D.
Internal Medicine (Gastroenterology)
6271 ROSEMEAD BLVD
TEMPLE CITY, CA 91780
Los Angeles County (626) 898-4560
ANDY CHOW
Nurse Practitioner (Psychiatric/Mental Health)
6271 ROSEMEAD BLVD
TEMPLE CITY, CA 91780
Los Angeles County (626) 898-4560
DR. TIEN-CHUN CHEN MD
Internal Medicine (Gastroenterology)
6271 ROSEMEAD BLVD
TEMPLE CITY, CA 91780
Los Angeles County (626) 898-4560
UNKNOWN LIANNA NP
Nurse Practitioner (Primary Care)
6271 ROSEMEAD BLVD
TEMPLE CITY, CA 91780
Los Angeles County (626) 898-4560

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 Ken D. Nguyen, M.D., Inc.'s NPI number?

The NPI number for Ken D. Nguyen, M.D., Inc. is 1043846108. It was assigned to this organization in the NPPES registry on March 20, 2020.

Where is Ken D. Nguyen, M.D., Inc. located?

Ken D. Nguyen, M.D., Inc. is located at 6271 Rosemead Blvd, Temple City, CA 91780. The listed phone number is (626) 898-4560.

What is Ken D. Nguyen, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Ken D. Nguyen, M.D., Inc. was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.