ETHAN HOLDEN NYEIN MD
NPI 1386221497
Student in an Organized Health Care Education/Training Program in New York, NY
About Ethan Holden Nyein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN HOLDEN NYEIN MD (NPI 1386221497) is an individual student in an organized health care education/training program in New York, New York and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ethan Holden Nyein Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ethan Nyein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hemet, CA 92545
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
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 Ethan Nyein's NPI number?
The NPI number for Ethan Nyein is 1386221497. It was assigned to this individual provider in the NPPES registry on March 25, 2021.
Where is Ethan Nyein located?
Ethan Nyein practices at 1000 10th Ave, New York, NY 10019. The listed phone number is (212) 523-8366.
What is Ethan Nyein's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Ethan Nyein enrolled in Medicare?
Yes. Ethan Nyein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ethan Nyein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Nyein reassigns Medicare benefits to Southern California Permanente Medical Group (Hemet, 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 Ethan Nyein'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 Ethan Nyein was last updated on May 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ethan Holden Nyein, MD · NPI 1386221497
Student in an Organized Health Care Education/Training Program provider in New York, New York. Individual provider, active in the CMS NPPES registry since March 25, 2021.
## Identity
- **NPI:** 1386221497 (Entity type: Individual)
- **Enumerated:** March 25, 2021
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 10TH AVE, New York, NY 10019-1147
- **Phone:** (212) 523-8366
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1013433465, Hemet, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** May 20, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1386221497) · Data from the CMS NPPES public registry.