NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eileen M Barr, DO

Internal Medicine Physician in Smithtown, NY · enumerated 2006.

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

National Provider Identifier

1669561940

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Eileen M Barr
Credential DO
Sex Female
Practice address 100 Terry Rd, Smithtown, NY, 11787
Phone (631) 979-7400
Fax (631) 979-7440
Enumeration date Oct 12, 2006
Last updated in NPPES Nov 28, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 206664 (NY) 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

Other identifiers

Identifier Type State Issuer
P792184 Other - OXFORD
2343357 Other - AETNA
AJ49109 Other - MDNY
78093 Other - VYTRA

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Eileen Barr's NPI record?
Cross-check NPI 1669561940 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1669561940 active?
Yes, as of the latest NPPES snapshot, NPI 1669561940 is active (record last updated 2011-11-28).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-28.