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MR. TUAN XUAN NGUYEN MD
NPI 1679519821
Internal Medicine in Garden Grove, CA

Active since June 22, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D2148368 · Waiver
29.36/100
CMS Quality Rating
14221 EUCLID ST, STE H, GARDEN GROVE, CA 92843(714) 530-2420(714) 530-2478 Get Directions Write a Review

NPPES record last updated: October 15, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Tuan Xuan Nguyen Md NPPES

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

MR. TUAN XUAN NGUYEN MD (NPI 1679519821) is an individual internal medicine provider in Garden Grove, California, licensed in California (A48636) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through May 8, 2028, and is a graduate of University Of Oklahoma College Of Medicine (1989).

NPPES Registry Identity

NPI1679519821
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. TUAN XUAN NGUYENCredential: MD
Location Address14221 EUCLID ST, STE HGarden Grove, CA 92843-4991
Mailing Address14221 Euclid St, Ste HGarden Grove, CA 92843-4991 · (714) 530-2420 · Fax (714) 530-2478
Phone(714) 530-2420
Fax(714) 530-2478
Sole ProprietorNo
Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 1989
Enumeration DateJune 22, 2006
Last NPPES UpdateOctober 15, 2018
✔ NPI 1679519821 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 · A48636
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.
14221 EUCLID ST, Garden Grove, CA 92843
Open in Google Maps ↗

Other Identifiers 2

Medicaid00A486360CA
OtherZZZ08624ZBlue Shield

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

Mr. Tuan Xuan 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 ID8426012626
PECOS Enrollment IDI20041117000624
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 05D2148368

Tuan Xuan Nguyen MD A Prof Corp · Garden Grove, CA
Active · expires May 8, 2028
CLIA Number05D2148368
Laboratory TypePhysician Office
Certificate Effective DateMay 9, 2026
Certificate Expiration DateMay 8, 2028
Laboratory DirectorTuan X. Nguyen
Laboratory Phone(714) 530-2420
Laboratory LocationTuan Xuan Nguyen MD A Prof Corp14221 Euclid St Ste H, Garden Grove, CA 92843
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 13

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.

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
1,811 services183 patients
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457
This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
1,763 services181 patients
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454
This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.
1,611 services179 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.
945 services223 patients
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.
795 services211 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
174 services127 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92843 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

29.36/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost97.89

Referred Medical Equipment & Supplies CMS DME claims 13

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
24 suppliers99 claims166 services$4.97 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
23 suppliers79 claims83 services$0.87 avg. paid by Medicare
Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
4 suppliers13 claims13 services$29.75 avg. paid by Medicare
Seat attachment, walker E0156
DME-Other DME · category DE000N
3 suppliers12 claims12 services$11.60 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers19 claims19 services$14.04 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers15 claims24 services$2.96 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 5

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

NHAN HOA COMPREHENSIVE HEALTHCARE CLINIC
Clinic/Center (Primary Care)
14221 EUCLID ST, SUITE H
GARDEN GROVE, CA 92843
Orange County (714) 539-9999
MR. AN HONG NGUYEN LE B.A.
Counselor (Mental Health)
14221 EUCLID ST, SUITE H
GARDEN GROVE, CA 92843
Orange County (714) 539-9999
DANA ABDULLAH MAKHLOUF
Occupational Therapist
14221 EUCLID ST
GARDEN GROVE, CA 92843
Orange County (714) 891-2739
EMMANUEL VAZQUEZ PT
Physical Therapist
14221 EUCLID ST
GARDEN GROVE, CA 92843
Orange County (714) 891-2739
XUYEN KIM HUYNH NP
Nurse Practitioner (Family)
14221 EUCLID ST, SUITE H
GARDEN GROVE, CA 92843
Orange County (714) 899-9898

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 Tuan Xuan Nguyen's NPI number?

The NPI number for Tuan Xuan Nguyen is 1679519821. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is Tuan Xuan Nguyen located?

Tuan Xuan Nguyen practices at 14221 Euclid St Ste H, Garden Grove, CA 92843. The listed phone number is (714) 530-2420.

What is Tuan Xuan Nguyen's specialty?

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

Is Tuan Xuan Nguyen enrolled in Medicare?

Yes. Tuan Xuan 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.

Does Tuan Xuan Nguyen hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2148368) is associated with this NPI, valid through May 8, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Tuan Xuan Nguyen was last updated on October 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.