DR. ROGER LINH NGUYEN M.D
NPI 1982625430
Allergy & Immunology - Allergy in Garden Grove, CA

Q: What is Roger Nguyen's NPI number?

The NPI number for Roger Nguyen is 1982625430. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Q: What is Roger Nguyen's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Q: When was this NPI record last updated?

The NPPES record for Roger Nguyen was last updated on May 8, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 July 21, 2006PECOS EnrolledAccepts Medicare Assignment

9746 WESTMINSTER AVE STE A, GARDEN GROVE, CA 92844(714) 638-4433 Get Directions Write a Review

NPPES record last updated: May 8, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Roger Linh Nguyen M.d NPPES

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

DR. ROGER LINH NGUYEN M.D (NPI 1982625430) is an individual allergy provider in Garden Grove, California, licensed in California (A68125) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1997).

NPPES Registry Identity

NPI1982625430

Entity TypeIndividualMale

Primary Taxonomy207KA0200X

Provider Legal NameDR. ROGER LINH NGUYENCredential: M.D

Location Address9746 WESTMINSTER AVE STE AGarden Grove, CA 92844-2984

Mailing Address9746 Westminster Ave, Ste AGarden Grove, CA 92844-2984 · (562) 682-9826

Phone(714) 638-4433

Sole ProprietorYes

Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1997

Enumeration DateJuly 21, 2006

Last NPPES UpdateMay 8, 2017

✔ NPI 1982625430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians

Taxonomy Code207KA0200X

License✔ Licensed in CA · A68125

Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

9746 WESTMINSTER AVE STE A, Garden Grove, CA 92844

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Other Identifiers 3

Medicaid00A681250CA

Medicare UPINH13065CA

Medicare ID-Type UnspecifiedA68125CA

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

Dr. Roger Linh Nguyen M.d 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 ID3476509100

PECOS Enrollment IDI20050325000426

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.

Areas of Expertise CMS Part B claims 5

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.

1,866 services23 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.

38 services25 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.

19 services13 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.

15 services15 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

12 services12 patients

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.

DR. ROGER L. NGUYEN, A CORPORATION

Allergy & Immunology (Allergy)

9746 WESTMINSTER AVE STE A
GARDEN GROVE, CA 92844

Orange County (714) 638-4433

DR. ROGER NGUYEN, A CORPORATION

Allergy & Immunology

9746 WESTMINSTER AVE STE A
GARDEN GROVE, CA 92844

Orange County (714) 638-4433

DR. ROGER NGUYEN, A CORPORATION

Allergy & Immunology

9746 WESTMINSTER AVE STE A
GARDEN GROVE, CA 92844

Orange County (714) 638-4433

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 Roger Nguyen's NPI number?

The NPI number for Roger Nguyen is 1982625430. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Where is Roger Nguyen located?

Roger Nguyen practices at 9746 Westminster Ave Ste A, Garden Grove, CA 92844. The listed phone number is (714) 638-4433.

What is Roger Nguyen's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Roger Nguyen enrolled in Medicare?

Yes. Roger 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.

When was this NPI record last updated?

The NPPES record for Roger Nguyen was last updated on May 8, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.