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DR. DAT MANH NGUYEN M.D.
NPI 1871730895
Internal Medicine in Westminster, CA

Active since January 13, 2009PECOS EnrolledCLIA 05D0580044 · Waiver
14536 BROOKHURST ST, SUITE# 102, WESTMINSTER, CA 92683(714) 531-2548 Get Directions Write a Review

NPPES record last updated: January 13, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Dat Manh Nguyen M.d. NPPES

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

DR. DAT MANH NGUYEN M.D. (NPI 1871730895) is an individual internal medicine provider in Westminster, California, licensed in California (A36056) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through October 25, 2026, and is a graduate of Other (1975).

NPPES Registry Identity

NPI1871730895
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAT MANH NGUYENCredential: M.D.
Location Address14536 BROOKHURST ST, SUITE# 102Westminster, CA 92683-5787
Mailing Address14536 Brookhurst St, Suite# 102Westminster, CA 92683-5787 · (714) 531-2548
Phone(714) 531-2548
Sole ProprietorYes
Medical School CMSOtherGraduated 1975
Enumeration DateJanuary 13, 2009
✔ NPI 1871730895 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A36056
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
14536 BROOKHURST ST, Westminster, CA 92683
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Other Identifiers 3

Medicare UPINA27976CA
Medicare PINA36056CA
Medicaid00A360562CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Dat Manh Nguyen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7517015480
PECOS Enrollment IDI20090502000042
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0580044

Dat M Nguyen MD · Westminster, CA
Active · expires Oct 25, 2026
CLIA Number05D0580044
Laboratory TypePhysician Office
Certificate Effective DateOctober 26, 2024
Certificate Expiration DateOctober 25, 2026
Laboratory DirectorDat M. Nguyen, MD
Laboratory Phone(714) 531-2548
Laboratory LocationDat M Nguyen MD14536 Brookhurst, #102, Westminster, CA 92683
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 11

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
1,082 services167 patients
Application of ultrasound, each 15 minutes 97035
Ultrasound is a medical procedure that uses high-frequency sound waves to capture live images from inside your body. It's a painless process typically lasting 15 minutes per session. This method aids in diagnosing conditions and monitoring health without any radiation exposure.
238 services19 patients
Therapy procedure using manual technique, each 15 minutes 97140
This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.
238 services19 patients
Application of electrical stimulation with therapist present, each 15 minutes 97032
Electrical stimulation is a therapeutic treatment that sends light electrical pulses to a specific area of your body. This is done under the supervision of a therapist for 15-minute intervals. It can reduce pain, stimulate muscles, and improve circulation.
234 services19 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
181 services36 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
162 services87 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92683 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers42 claims72 services$2.59 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers29 claims33 services$0.42 avg. paid by Medicare
Transport chair, adult size, patient weight capacity up to and including 300 pounds E1038
DME-Other DME · category DE000N
3 suppliers30 claims31 services$5.75 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$63.89 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers19 claims26 services$10.69 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
1 supplier21 claims21 services$18.75 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

KIM-OANH THI TRAN
Pharmacy (Community/Retail Pharmacy)
14536 BROOKHURST ST, STE 101
WESTMINSTER, CA 92683
Orange County (714) 775-6677
MRS. KIM OANH THI TRAN RPH
Pharmacist
14536 BROOKHURST ST, SUITE 101
WESTMINSTER, CA 92683
Orange County (714) 775-6677
DAT MANH NGUYEN M D A PROFESSIONAL CORPORATION
Internal Medicine (Allergy & Immunology)
14536 BROOKHURST ST, SUITE #102
WESTMINSTER, CA 92683
Orange County (714) 531-2548

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 Dat Nguyen's NPI number?

The NPI number for Dat Nguyen is 1871730895. It was assigned to this individual provider in the NPPES registry on January 13, 2009.

Where is Dat Nguyen located?

Dat Nguyen practices at 14536 Brookhurst St Suite# 102, Westminster, CA 92683. The listed phone number is (714) 531-2548.

What is Dat Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dat Nguyen enrolled in Medicare?

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

Does Dat Nguyen hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0580044) is associated with this NPI, valid through October 25, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Dat Nguyen was last updated on January 13, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.