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Patrick J Cahill, D.O.

Obstetrics & Gynecology Physician in Stamford, CT · enumerated 2006.

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

National Provider Identifier

1134229909

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Registry record

Entity type Individual (Type 1)
Name Patrick J Cahill
Credential D.O.
Sex Male
Practice address 999 Summer St, Suite 401, Stamford, CT, 06905
Phone (203) 353-9099
Fax (203) 353-9699
Enumeration date Sep 22, 2006
Last updated in NPPES Jun 13, 2013

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 000548 (CT) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
000548 Other CT LICENSE

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 Patrick Cahill practice?
The practice location on file with NPPES is in Stamford, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Patrick Cahill?
The National Provider Identifier (NPI) for Patrick Cahill is 1134229909, 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 2013-06-13.