THAI QUANG NGUYEN, M.D., INC.,
NPI 1639484348
Internal Medicine - Cardiovascular Disease in Westminster, CA

NPI Status: Active since August 18, 2010

Contact Information

14558 BROOKHURST ST
WESTMINSTER, CA
ZIP 92683
Phone: (714) 531-5056
Fax: (714) 531-3488

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  • Organization
  • Internal Medicine
  • Cardiovascular Disease
  • CLIA Number: 05D0690172
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-31-2026

About THAI QUANG NGUYEN, M.D., INC.,

This page provides the complete NPI Profile along with additional information for Thai Quang Nguyen, M.d., Inc.,, an internist established in Westminster, California operating as a Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1639484348 assigned on August 2010. The practitioner's primary taxonomy code is 207RC0000X with license number A39322 (CA). The provider is registered as an organization and their NPI record was last updated 16 years ago. Thai Quang Nguyen, M.d., Inc., operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Thai Nguyen M.d. (M.d.)

NPI
1639484348
Provider Name
THAI QUANG NGUYEN, M.D., INC.,
Entity Type
Organization
Location Address
14558 BROOKHURST ST WESTMINSTER, CA 92683
Location Phone
(714) 531-5056
Location Fax
(714) 531-3488
Mailing Address
14558 BROOKHURST ST WESTMINSTER, CA 92683
Mailing Phone
(714) 531-5056
Mailing Fax
(714) 531-3488
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-18-2010
Last Update Date
08-18-2010
Code Navigator

An internist like Thai Quang Nguyen, M.d., Inc., is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Cardiovascular Disease

Taxonomy Code
207RC0000X
Type
Allopathic & Osteopathic Physicians
License No.
A39322
License State
CA
Taxonomy Description
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

THAI NGUYEN M.D.

Authorized Official Title
M.D.
Authorized Official Phone
(714) 531-5056

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0690172
Facility Type
Physician Office
Certificate Effective Date
September 01, 2024
Certificate Expiration Date
August 31, 2026
Laboratory Director
THAI Q. NGUYEN
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Thai Quang Nguyen, M.d., Inc., to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

Reviews for THAI QUANG NGUYEN, M.D., INC.,

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1639484348, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 82. The final step is to find the difference between that total and the next multiple of ten (90 - 82 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 4 → 8 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 6 + 9 + 8 + 8 + 8 + 3 + 8 + 24 = 82

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 82 is 90. The difference is the calculated check digit.

90 - 82 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1639484348.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Internal Medicine (Cardiovascular Disease)
14558 BROOKHURST ST
WESTMINSTER, CA 92683

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639484348, enumerated as an "organization" on August 18, 2010.

The provider is located at 14558 BROOKHURST ST WESTMINSTER, CA 92683 and the phone number is (714) 531-5056.

Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.