Nancy Thi Nguyen, MD

NPI 1518379171ActiveIndividual· Obstetrics & Gynecology, Gynecologic Oncology· Sacramento, CA

Obstetrics & Gynecology, Gynecologic Oncology (MD) in Sacramento, California, trained at Oregon Health Sciences University School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $224,407 for 194 claims, against $49,216 paid for services in 2024. Caris Mpi, Inc. was the largest of 2 companies reporting payments in 2025, $257.73 in all, mostly food and beverage.

Overview

NPI	1518379171
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	Yes
NPI issued	May 29, 2014
Last updated in NPPES	Jun 10, 2020
Certified by provider	Jun 10, 2020

Specialties and licenses

Taxonomy	Code	License	State
Obstetrics & Gynecology, Gynecologic Oncology Primary	207VX0201X	A138197	CA
Student in an Organized Health Care Education/Training Program	390200000X	—	—

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Obstetrics/Gynecology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	108
Services billed	395 across 41 procedure codes
Paid by Medicare	$49,216

Part D prescriptions in 2024

Prescriptions (claims)	194 · 200 30-day fills
Patients	29
Total drug cost	$224,407
Generic share	77% of claims

Medicare sources and data years

Education and affiliations

Medical school	Oregon Health Sciences University School of Medicine
Graduation year	2014
Medicare specialty	Obstetrics/Gynecology
Telehealth	Offers telehealth