Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nausheen Hassan, M.D.

Internal Medicine Physician in Chelmsford, MA · enumerated 2007.

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

National Provider Identifier

1114108966

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Registry record

Entity type Individual (Type 1)

Name Nausheen Hassan

Credential M.D.

Sex Female

Practice address 290 Littleton Rd Unit 3, Chelmsford, MA, 01824

Phone (978) 685-2460

Enumeration date Nov 21, 2007

Last updated in NPPES Dec 3, 2025

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 234376 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 234376 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Nausheen Hassan?

The National Provider Identifier (NPI) for Nausheen Hassan is 1114108966, a Type 1 (individual) record in the CMS NPPES registry.

Where does Nausheen Hassan practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-03.