Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

ELLEN YIN M.D.
NPI 1649911868
Psychiatry & Neurology - Psychiatry in Westminster, MD

Active since April 03, 2022
66 E MAIN ST, WESTMINSTER, MD 21157(833) 351-8255 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Ellen Yin M.d. NPPES

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

ELLEN YIN M.D. (NPI 1649911868) is an individual psychiatry provider in Westminster, Maryland, licensed in Maryland (D0107329) and active in the NPI registry since April 2022. She maintains 3 additional practice locations.

NPPES Registry Identity

NPI1649911868
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameELLEN YINCredential: M.D.
Location Address66 E MAIN STWestminster, MD 21157-5008
Mailing Address66 E Main StWestminster, MD 21157-5008
Sole ProprietorNo
Enumeration DateApril 3, 2022
Last NPPES UpdateJuly 20, 2026
NPPES CertifiedJuly 20, 2026
NPI 1649911868 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in MD · D0107329
Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

66 E MAIN ST, Westminster, MD 21157

Secondary Practice Locations 3

Location 11500 K St NWWashington, DC 20005-1209 · Phone (833) 351-8255
Location 2150 Riverside PkwyFredericksburg, VA 22406-1094 · Phone (833) 351-8255
Location 3109 W 27th St Rm 5SNew York, NY 10001-6208 · Phone (833) 351-8255

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Psychiatry)
66 E MAIN ST, 2ND AND 3RD FLOOR (PRIVATE OFFICE 303)
WESTMINSTER, MD 21157
Counselor (Mental Health)
66 E MAIN ST
WESTMINSTER, MD 21157
Psychiatry & Neurology (Psychiatry)
66 E MAIN ST
WESTMINSTER, MD 21157
Counselor (Addiction (Substance Use Disorder))
66 E MAIN ST
WESTMINSTER, MD 21157
Psychiatry & Neurology (Psychiatry)
66 E MAIN ST
WESTMINSTER, MD 21157

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 Ellen Yin's NPI number?

The NPI number for Ellen Yin is 1649911868. It was assigned to this individual provider in the NPPES registry on April 3, 2022.

Where is Ellen Yin located?

Ellen Yin practices at 66 E Main St, Westminster, MD 21157. The listed phone number is (833) 351-8255.

What is Ellen Yin's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Ellen Yin was last updated on July 20, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.