Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Baran

Internal Medicine Physician in Darien, CT · enumerated 2005.

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

National Provider Identifier

1285623843

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Margaret Baran

Sex Female

Practice address 1500 Post Rd Ste 100, Darien, CT, 06820

Phone (203) 655-8749

Fax (203) 655-0701

Enumeration date Oct 17, 2005

Last updated in NPPES Oct 12, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2114601 (NY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 69231 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
02094580	Medicaid	NY	-

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

Where does Margaret Baran practice?

The practice location on file with NPPES is in Darien, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Margaret Baran?

The National Provider Identifier (NPI) for Margaret Baran is 1285623843, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Karthik Gunachelvan Internal Medicine Physician · Darien, CT NPI 1740604941

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-12.