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Barry Witt, MD

Reproductive Endocrinology Physician in Greenwich, CT · enumerated 2006.

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

National Provider Identifier

1538109699

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Registry record

Entity type Individual (Type 1)
Name Barry Witt
Credential MD
Sex Male
Practice address 55 Holly Hill Ln Ste 270, Greenwich, CT, 06830
Phone (032) 863-2990
Enumeration date Jun 7, 2006
Last updated in NPPES Jul 8, 2020

Taxonomy & licenses

207VE0102X Reproductive Endocrinology Physician Allopathic & Osteopathic Physicians · License 168909 (NY) Primary
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 Barry Witt practice?
The practice location on file with NPPES is in Greenwich, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Barry Witt?
The National Provider Identifier (NPI) for Barry Witt is 1538109699, 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 2020-07-08.