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Tahsin Nafis Hasan, M.D.

Behavioral Neurology & Neuropsychiatry Physician in Stony Brook, NY · enumerated 2015.

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

National Provider Identifier

1366821621

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Registry record

Entity type Individual (Type 1)
Name Tahsin Nafis Hasan
Credential M.D.
Sex Male
Practice address Putnam Hall South Campus, Stony Brook, NY, 11794
Phone (631) 632-3106
Enumeration date May 20, 2015
Last updated in NPPES Feb 21, 2020

Taxonomy & licenses

2084B0040X Behavioral Neurology & Neuropsychiatry Physician Allopathic & Osteopathic Physicians · License 301376 (NY) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Tahsin Hasan practice?
The practice location on file with NPPES is in Stony Brook, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tahsin Hasan?
The National Provider Identifier (NPI) for Tahsin Hasan is 1366821621, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-21.