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Guillaume Bassil, M.D.

Cardiovascular Disease Physician in New York, NY · enumerated 2015 · practices at City Medical of Upper East Side, Pllc.

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

National Provider Identifier

1235524372

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Registry record

Entity type Individual (Type 1)
Name Guillaume Bassil
Credential M.D.
Sex Male
Practice address 18 W 18th St, New York, NY, 10011
Phone (917) 512-8500
Enumeration date Apr 6, 2015
Last updated in NPPES Feb 13, 2026

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 67298 (CT) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 67298 (CT) Primary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 293038 (NY) 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

What is the NPI number for Guillaume Bassil?
The National Provider Identifier (NPI) for Guillaume Bassil is 1235524372, a Type 1 (individual) record in the CMS NPPES registry.
Where does Guillaume Bassil practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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