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John Weiser, MD

Family Medicine Physician in New York, NY · enumerated 2005.

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

National Provider Identifier

1790779973

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Registry record

Entity type Individual (Type 1)
Name John Weiser
Credential MD
Sex Male
Practice address 16 E 16th St, New York, NY, 10003
Phone (212) 924-7744
Fax (212) 691-2786
Enumeration date Sep 2, 2005
Last updated in NPPES Jul 19, 2007

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 195979 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00903700 Medicaid NY -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1790779973 active?
Yes, as of the latest NPPES snapshot, NPI 1790779973 is active (record last updated 2007-07-19).
How do I verify John Weiser's NPI record?
Cross-check NPI 1790779973 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-19.