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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert C. Teltser, M.D.

Internal Medicine Physician in Westport, CT · enumerated 2007.

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

National Provider Identifier

1821291675

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Registry record

Entity type Individual (Type 1)
Name Mr. Robert C. Teltser
Credential M.D.
Sex Male
Practice address 333 Post Road West, Lower Level, Westport, CT, 06880
Phone (203) 571-3000
Fax (203) 349-8179
Enumeration date Jun 8, 2007
Last updated in NPPES Jun 1, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 045272 (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 Robert Teltser practice?
The practice location on file with NPPES is in Westport, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Robert Teltser?
The National Provider Identifier (NPI) for Robert Teltser is 1821291675, 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 2022-06-01.