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GRETCHEN WINTERKORN LMSW
NPI 1376821868
Social Worker in New York, NY

Active since August 01, 2011Opted out of Medicare · through Apr 21, 2027
121 W 20TH ST, NEW YORK, NY 10011(212) 337-9277 Get Directions Write a Review

NPPES record last updated: April 12, 2013. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Gretchen Winterkorn Lmsw NPPES

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

GRETCHEN WINTERKORN LMSW (NPI 1376821868) is an individual social worker in New York, New York, licensed in New York (080258) and active in the NPI registry since August 2011. She has opted out of Medicare through April 21, 2027.

NPPES Registry Identity

NPI1376821868
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameGRETCHEN WINTERKORNCredential: LMSW
Location Address121 W 20TH STNew York, NY 10011-3641
Mailing Address121 W 20th StNew York, NY 10011-3641
Phone(212) 337-9277
Sole ProprietorNo
Enumeration DateAugust 1, 2011
Last NPPES UpdateApril 12, 2013
✔ NPI 1376821868 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · 080258
Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

121 W 20TH ST, New York, NY 10011
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Gretchen Winterkorn Lmsw has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 21, 2021 through April 21, 2027.

Opt-Out Effective DateApril 21, 2021
Opt-Out In Effect ThroughApril 21, 2027Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 3

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

JENNIFER JANG NP
Nurse Practitioner (Adult Health)
121 W 20TH ST
NEW YORK, NY 10011
New York County (212) 337-9290
DR. ZACHARY BREGMAN MD
Internal Medicine (Pulmonary Disease)
121 W 20TH ST, LOWER LEVEL
NEW YORK, NY 10011
New York County (212) 505-6663
VILLAGE CENTER FOR CARE
Clinic/Center (Adult Day Care)
121 W 20TH ST
NEW YORK, NY 10011
New York County (212) 337-9221

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 Gretchen Winterkorn's NPI number?

The NPI number for Gretchen Winterkorn is 1376821868. It was assigned to this individual provider in the NPPES registry on August 1, 2011.

Where is Gretchen Winterkorn located?

Gretchen Winterkorn practices at 121 W 20th St, New York, NY 10011. The listed phone number is (212) 337-9277.

What is Gretchen Winterkorn's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Gretchen Winterkorn enrolled in Medicare?

No. Gretchen Winterkorn has opted out of Medicare through April 21, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Gretchen Winterkorn was last updated on April 12, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.