Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dat Q Nguyen, MD, Inc

Internal Medicine Physician in Garden Grove, CA · enumerated 2019 · authorized official Dat Nguyen, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1811530686

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Dat Q Nguyen, MD, Inc

Practice address 12865 Main St Ste 105, Garden Grove, CA, 92840

Phone (800) 560-9999

Enumeration date Oct 23, 2019

Last updated in NPPES Oct 23, 2019

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dat Nguyen

Title Owner

Phone (818) 618-6850

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Dat Q Nguyen, MD, Inc located?

The practice location on file with NPPES is in Garden Grove, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-10-23. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-23.