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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

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.