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MRS. TIEN THUY NGUYEN M.D.
NPI 1982865614
Pediatrics in Tucson, AZ

Active since June 25, 2008PECOS Enrolled
5983 E GRANT RD STE 117, TUCSON, AZ 85712(520) 721-5350(520) 547-5749 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 7, 2026, Aug 24, 2020, Feb 5, 2020 (3 updates tracked since 2020).

About Mrs. Tien Thuy Nguyen M.d. NPPES

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

MRS. TIEN THUY NGUYEN M.D. (NPI 1982865614) is an individual pediatrics provider in Tucson, Arizona, licensed in Arizona (46504) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982865614
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMRS. TIEN THUY NGUYENCredential: M.D.
Location Address5983 E GRANT RD STE 117Tucson, AZ 85712-2366
Mailing Address4801 E Broadway Blvd Ste 251Tucson, AZ 85711-2700 · (520) 382-1205 · Fax (520) 795-0225
Phone(520) 721-5350
Fax(520) 547-5749
Sole ProprietorNo
Enumeration DateJune 25, 2008
Last NPPES UpdateJune 18, 20263 updates tracked since enumeration
NPPES CertifiedJune 18, 2026
✔ NPI 1982865614 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in AZ · 46504✔ Licensed in CA · A103556
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
5983 E GRANT RD STE 117, Tucson, AZ 85712
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Blue Cross Blue Shield of Arizona and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Tien Thuy Nguyen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

3

Medicare enrollment records show Tien Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tmc Medical Network
0.9 mi
Multi-Specialty
5301 E GRANT RD
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 471 clinicians in this Medicare group
NPI 1750832283 (520) 327-5461
Tmcone
0.9 mi
Multi-Specialty
5301 E GRANT RD
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 196 clinicians in this Medicare group
NPI 1467310417 (520) 324-2308
Arizona Community Physicians PC
2.3 mi
Internal Medicine
5055 E BROADWAY BLVD, SUITE A100
Tucson, AZ 85711
  • Reassigned Medicare billing, Arizona enrollment
  • 264 clinicians in this Medicare group
NPI 1205871076 (520) 327-0460

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85712 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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 3

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

DR. TERRY H VONDRAK MD
Pediatrics
5983 E GRANT RD STE 117
TUCSON, AZ 85712
Pima County (520) 721-5350
JESUS CARLOS MACIAS MD
Pediatrics (Pediatric Cardiology)
5983 E GRANT RD STE 117
TUCSON, AZ 85712
Pima County (520) 320-7999
DAVID E MCHORNEY MD
Pediatrics
5983 E GRANT RD STE 117
TUCSON, AZ 85712
Pima County (520) 721-5350

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 Tien Nguyen's NPI number?

The NPI number for Tien Nguyen is 1982865614. It was assigned to this individual provider in the NPPES registry on June 25, 2008.

Where is Tien Nguyen located?

Tien Nguyen practices at 5983 E Grant Rd Ste 117, Tucson, AZ 85712. The listed phone number is (520) 721-5350.

What is Tien Nguyen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Tien Nguyen enrolled in Medicare?

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

Which organizations bill Medicare for Tien Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tien Nguyen reassigns Medicare benefits to 3 organizations: Tmc Medical Network (Tucson, AZ), Tmcone (Tucson, AZ) and Arizona Community Physicians PC (Tucson, AZ). Each 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 Tien Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tien Nguyen accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Tien 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 Tien Nguyen was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.