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Obstetrics/Gynecology

Trang T. Ngo, MD

Sees patients in Fremont, CA · Milpitas, CA · California

Summary

Dr. Trang T. Ngo, MD is an OB-GYN at 3200 Kearney St, Fremont, CA 94538. Phone: (510) 490-1222. Accepts Medicare assignment. In 2024, Trang T. Ngo had 21 Original Medicare patients and 25 services. NPI 1891762043. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 3200 Kearney St, Fremont, CA 94538 · Directions (1 more location)
  • Phone: (510) 490‑1222
  • Medicare: Accepts Medicare assignment
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: Temple University School Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Trang T. Ngo, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Trang T. Ngo accept Medicare assignment?
Yes. Medicare's clinician data says Trang T. Ngo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Trang T. Ngo see?
In 2024, CMS data shows 21 Original Medicare patients and 25 services for Trang T. Ngo. This counts Original Medicare only and measures volume, not quality.
What is Trang T. Ngo's NPI number?
1891762043. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Trang T. Ngo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients21
Services billed to Medicare25
Different services or procedures8
Participating Medicare providerYes
Average age of these patients71

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure71%
  • High cholesterol57%

Practice locations

Addresses where Trang T. Ngo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Trang T. Ngo as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Fremont

Clinicians with the same Medicare primary specialty in Fremont, CA — not a recommendation.

All OB-GYNs in Fremont →

Other clinicians in Sutter Bay Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolTemple University School Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891762043
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians