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Obstetrics/Gynecology

Ethan H. Nyein, MD

Sees patients in Pasaden, CA · Pasadena, CA · California

Summary

Dr. Ethan H. Nyein, MD is an OB-GYN at 393 E Walnut St, Pasaden, CA 91188. May accept Medicare assignment. NPI 1386221497. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 393 E Walnut St, Pasaden, CA 91188 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2021 (5 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Ethan H. Nyein, 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 Ethan H. Nyein accept Medicare assignment?
Medicare's clinician data says Ethan H. Nyein may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Ethan H. Nyein's NPI number?
1386221497. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ethan H. Nyein is enrolled with Medicare (CMS data updated October 2, 2026).

  • 393 E Walnut StPasaden, CA 91188
  • 393 E Walnut StPasadena, CA 91188

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Pasaden

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

All OB-GYNs in Pasaden →

Clinician information

CredentialMD
Graduation year2021 (5 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1386221497
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians