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Ryan M O'Connor, M.D.

Gastroenterology Physician in Middletown, CT · enumerated 2008 · practices at Middlesex Gastroenterology Associates, LLC.

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

National Provider Identifier

1609052117

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Registry record

Entity type Individual (Type 1)
Name Ryan M O'Connor
Credential M.D.
Sex Male
Practice address 410 Saybrook Road, Suite 201, Middletown, CT, 06457
Phone (860) 347-4620
Fax (860) 346-9687
Enumeration date Jan 15, 2008
Last updated in NPPES Aug 17, 2015

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 048583 (CT) 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 Ryan O'Connor practice?
The practice location on file with NPPES is in Middletown, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ryan O'Connor?
The National Provider Identifier (NPI) for Ryan O'Connor is 1609052117, 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 2015-08-17.