Internal Medicine in Old Saybrook, CT

6 active Internal Medicine providers practice in Old Saybrook, Connecticut according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Old Saybrook, CT
NPI	Name	Type	Specialty	Location
1811129463	Jeanne Breen	Individual	Infectious Disease Physician	Old Saybrook, CT
1336768944	Michael Dunne	Individual	Infectious Disease Physician	Old Saybrook, CT
1194243097	Middlesex Hospital	Organization	Internal Medicine Physician	Old Saybrook, CT
1710948443	Premier Medical Associates	Organization	Internal Medicine Physician	Old Saybrook, CT
1699737916	Scott Houghton	Individual	Internal Medicine Physician	Old Saybrook, CT
1740445030	William J. Mccann M.D. P,C,	Organization	Internal Medicine Physician	Old Saybrook, CT

Frequently asked questions

How many Internal Medicine providers are in Old Saybrook, CT?

The latest NPPES snapshot lists 6 active Internal Medicine providers with a practice address in Old Saybrook, Connecticut.

How do I check a Internal Medicine provider's NPI in Old Saybrook?

Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.