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Hindi Mermelstein,MD.

Mental Health Clinic/Center (Including Community Mental Health Center) in Great Neck, NY · enumerated 2007 · authorized official Hindi Mermelstein, Physician.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083812184

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Registry record

Entity type Organization (Type 2)
Legal business name Hindi Mermelstein,MD.
Practice address 91 Bayview Ave, Great Neck, NY, 11021
Phone (516) 336-2562
Fax (516) 336-2564
Enumeration date Jul 10, 2007
Last updated in NPPES Jul 10, 2007

Taxonomy & classification

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities · License NY 164723 (NY) Primary

Authorized official

Name Hindi Mermelstein
Title Physician
Phone (516) 336-2562

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Hindi Mermelstein,MD.?
Hindi Mermelstein,MD. is registered in NPPES as a Mental Health Clinic/Center (Including Community Mental Health Center) (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-10.