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DR. TIFFANY THUONG NGUYEN M.D.
NPI 1770840530
Internal Medicine in Garden Grove, CA

Active since April 18, 2012PECOS EnrolledAccepts Medicare Assignment
12100 EUCLID ST, GARDEN GROVE, CA 92840(888) 988-2800 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Tiffany Thuong Nguyen M.d. NPPES

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

DR. TIFFANY THUONG NGUYEN M.D. (NPI 1770840530) is an individual internal medicine provider in Garden Grove, California, licensed in California (A128638) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2012).

NPPES Registry Identity

NPI1770840530
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. TIFFANY THUONG NGUYENCredential: M.D.
Location Address12100 EUCLID STGarden Grove, CA 92840-3304
Mailing Address12100 Euclid StGarden Grove, CA 92840-3304 · (888) 988-2800
Phone(888) 988-2800
Sole ProprietorNo
Medical School CMSCreighton University School Of MedicineGraduated 2012
Enumeration DateApril 18, 2012
Last NPPES UpdateDecember 15, 2021
✔ NPI 1770840530 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 · A128638
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.
12100 EUCLID ST, Garden Grove, CA 92840
Open in Google Maps ↗

Other Identifiers 1

Other1770840530CA · Npi

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. Tiffany Thuong 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 ID446562086
PECOS Enrollment IDI20151016000422
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92840 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.

Other Providers at the Same Location NPPES 20

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

MRS. ADRIANA CERVANTES LONGO M.D.
Internal Medicine
12100 EUCLID ST, 3RD FLOOR
GARDEN GROVE, CA 92840
Orange County (714) 741-3685
MICHELLE SUH
Pharmacist
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (714) 741-3430
CHRISTINE ATALLA
Pharmacist
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (714) 741-3430
GRESHAWNDA CRAYTON RN, FNP-BC, PHN
Registered Nurse
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (714) 741-3516
DR. LAUREN RUBAL M.D.
Obstetrics & Gynecology (Reproductive Endocrinology)
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (888) 988-2800
KELLY YING LIN M.D.
Specialist
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (888) 988-2800
MARY CATHERINE WASHBURN M.D.
Obstetrics & Gynecology
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (714) 887-9933
DR. NANCY LEE-HATA MD
Family Medicine
12100 EUCLID ST
GARDEN GROVE, CA 92840
Orange County (714) 741-3665

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 Tiffany Nguyen's NPI number?

The NPI number for Tiffany Nguyen is 1770840530. It was assigned to this individual provider in the NPPES registry on April 18, 2012.

Where is Tiffany Nguyen located?

Tiffany Nguyen practices at 12100 Euclid St, Garden Grove, CA 92840. The listed phone number is (888) 988-2800.

What is Tiffany Nguyen's specialty?

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

Is Tiffany Nguyen enrolled in Medicare?

Yes. Tiffany 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 Tiffany Nguyen was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.