Organization Profile
Middlesex Hospital is an organization based in Old Saybrook, CT and listed in the NPI registry under internal medicine. This organization is also listed as specializing in critical care medicine, endocrinology, diabetes & metabolism, and infectious disease.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Counted from individual NPI records registered at the same street address; a shared building can inflate this.
From registry street addresses: providers filed at this building, which can include unrelated practices sharing it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
154 MAIN ST
Old Saybrook, CT 06475
Middlesex Hospital is an internist in Old Saybrook, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Middlesex Hospital is listed at 154 Main St, Old Saybrook, CT 06475. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (860) 358-6394. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Middlesex Hospital's National Provider Identifier is 1194243097. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Middlesex Hospital. If this is you, claiming it is free.
Guide.md
Manage this listing? Log in or create an account, then click “This is my practice and I manage it” here. A verified physician whose registry address matches this location is approved instantly; everyone else is reviewed by a person.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.