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DR. DIANA TUYET TRANG DO
NPI 1851854293
Family Medicine in Fairfield, CA

Active since April 11, 2019PECOS Enrolled
101 BODIN CIR, FAIRFIELD, CA 94535(707) 423-3057(707) 423-3501 Get Directions Write a Review

NPPES record last updated: October 17, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 17, 2023, Jul 26, 2022, Apr 11, 2019 (3 updates tracked since 2019).

About Dr. Diana Tuyet Trang Do NPPES

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

DR. DIANA TUYET TRANG DO (NPI 1851854293) is an individual family medicine provider in Fairfield, California, licensed in Nebraska (2255) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851854293
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. DIANA TUYET TRANGCredential: DO
Location Address101 BODIN CIRFairfield, CA 94535-1800
Mailing Address101 Bodin CirFairfield, CA 94535-1809 · (707) 423-3057 · Fax (707) 423-3501
Phone(707) 423-3057
Fax(707) 423-3501
Sole ProprietorNo
Enumeration DateApril 11, 2019
Last NPPES UpdateOctober 17, 20233 updates tracked since enumeration
NPPES CertifiedOctober 17, 2023
✔ NPI 1851854293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in NE · 2255✔ Licensed in CA · 20A21014
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
101 BODIN CIR, Fairfield, CA 94535
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diana Tuyet Trang Do 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 Reassignment

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

Quantum Healthcare Medical Associates Inc.
387 mi
Hospitalist
400 N PEPPER AVE
Colton, CA 92324
  • Reassigned Medicare billing, California enrollment
  • 338 clinicians in this Medicare group
NPI 1568490597 (909) 580-1000

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 94535 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
$98.85 typical visit price
range $65.02 – $191.95
Typical copayment $24.71 (range $16.25 – $47.98)
Most-billed visit code 99203
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
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.

EDWARD SEAN RODRIGUEZ I.D.M.T
Military Health Care Provider (Independent Duty Medical Technicians)
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (707) 423-5478
KENDRA MONICA HILL PT
Physical Therapist
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (707) 423-3000
TIMOTHY GUENTHER MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (707) 423-3000
ANGELA SABRINA GIESE MD
Surgery (Vascular Surgery)
101 BODIN CIR
FAIRFIELD, CA 94535
Solano County (707) 423-3000
DR. JOSCELYN D. A. C. AQUININGOC PHARMD
Pharmacist
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (626) 297-8649
MATTHEW NICHOLAS RIBEIRO MD
Anesthesiology
101 BODIN CIR
FAIRFIELD, CA 94535
Solano County (707) 423-3000
DR. ARTHUR JOSEPH MESTAS MD
Family Medicine
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (707) 423-7295
CATHERINE CELINE BRANSTETTER
Dentist (General Practice)
101 BODIN CIR
TRAVIS AFB, CA 94535
Solano County (707) 423-7085

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 Diana Trang's NPI number?

The NPI number for Diana Trang is 1851854293. It was assigned to this individual provider in the NPPES registry on April 11, 2019.

Where is Diana Trang located?

Diana Trang practices at 101 Bodin Cir, Fairfield, CA 94535. The listed phone number is (707) 423-3057.

What is Diana Trang's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Diana Trang enrolled in Medicare?

Yes. Diana Trang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diana Trang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Trang reassigns Medicare benefits to Quantum Healthcare Medical Associates Inc. (Colton, CA). 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 Diana Trang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Diana Trang was last updated on October 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.