DUYEN KIM NGUYEN D.O.
NPI 1619288347
Allergy & Immunology in Houston, TX

Q: What is Duyen Nguyen's NPI number?

The NPI number for Duyen Nguyen is 1619288347. It was assigned to this individual provider in the NPPES registry on June 28, 2010.

Q: What is Duyen Nguyen's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Duyen Nguyen was last updated on August 26, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since June 28, 2010PECOS EnrolledAccepts Medicare Assignment

13114 FM 1960 ROAD WEST, SUITE 100, HOUSTON, TX 77065(281) 970-7788(281) 453-6904 Get Directions Write a Review

NPPES record last updated: August 26, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Duyen Kim Nguyen D.o. NPPES

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

DUYEN KIM NGUYEN D.O. (NPI 1619288347) is an individual allergy & immunology provider in Houston, Texas, licensed in Texas (M8871) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of University Of North Texas Hsc, College Of Osteopathic Med (2005).

NPPES Registry Identity

NPI1619288347

Entity TypeIndividualFemale

Primary Taxonomy207K00000X

Provider Legal NameDUYEN KIM NGUYENCredential: D.O.

Location Address13114 FM 1960 ROAD WEST, SUITE 100Houston, TX 77065

Mailing Address13114 Fm 1960 Raod West, Suite 100Houston, TX 77065 · (281) 970-7788 · Fax (281) 453-6904

Phone(281) 970-7788

Fax(281) 453-6904

Sole ProprietorNo

Medical School CMSUniversity Of North Texas Hsc, College Of Osteopathic MedGraduated 2005

Enumeration DateJune 28, 2010

Last NPPES UpdateAugust 26, 2015

✔ NPI 1619288347 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in TX · M8871

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

13114 FM 1960 ROAD WEST, Houston, TX 77065

Open in Google Maps ↗

Other Identifiers 1

OtherTXB110727TX · Medicare Ptan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Moda Health Plan, Inc., Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Duyen Kim Nguyen D.o. 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 ID2163616202

PECOS Enrollment IDI20101102000904

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.

Medicare Billing Reassignment

Medicare enrollment records show Duyen Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Allergy & Ent Associates, PLLC

5.4 mi

Allergy & Immunology

25250 NORTHWEST FWY STE 100
Cypress, TX 77429

Reassigned Medicare billing, Texas enrollment
51 clinicians in this Medicare group

NPI 1912085218 (281) 970-7788

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,561 services23 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

746 services17 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

469 services34 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

391 services31 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.

117 services78 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

60 services43 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.

56 services48 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

22 services22 patients

Removal of impacted ear wax 69210

Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.

21 services20 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.

18 services11 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

15 services15 patients

Referred Medical Equipment & Supplies CMS DME claims 3

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221

DME-Other DME · category DE017N

2 suppliers13 claims13 services$18.32 avg. paid by Medicare

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

2 suppliers13 claims13 services$35.22 avg. paid by Medicare

Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg immuneglobulin J1575

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers13 claims3,900 services$12.29 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Duyen Nguyen's NPI number?

The NPI number for Duyen Nguyen is 1619288347. It was assigned to this individual provider in the NPPES registry on June 28, 2010.

Where is Duyen Nguyen located?

Duyen Nguyen practices at 13114 Fm 1960 Road West Suite 100, Houston, TX 77065. The listed phone number is (281) 970-7788.

What is Duyen Nguyen's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Duyen Nguyen enrolled in Medicare?

Yes. Duyen 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.

Which organization bills Medicare for Duyen Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Duyen Nguyen reassigns Medicare benefits to Allergy & Ent Associates, PLLC (Cypress, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Duyen Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Duyen Nguyen accept?

Health plans from Blue Cross and Blue Shield of Texas, Moda Health Plan, Inc. and Oscar Insurance Company list Duyen Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Duyen Nguyen was last updated on August 26, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.