Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claudia M Nader, M.D.

Infectious Disease Physician in Brighton, MA · enumerated 2007.

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

National Provider Identifier

1083807523

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Registry record

Entity type Individual (Type 1)

Name Claudia M Nader

Credential M.D.

Sex Female

Practice address 11 Nevins St, Suite 202, Semc - Medical Specialties Practice, Brighton, MA, 02135

Phone (617) 779-6700

Fax (617) 779-6770

Enumeration date Aug 18, 2007

Last updated in NPPES Mar 17, 2025

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 232088 (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

Is NPI 1083807523 active?

Yes, as of the latest NPPES snapshot, NPI 1083807523 is active (record last updated 2025-03-17).

How do I verify Claudia Nader's NPI record?

Cross-check NPI 1083807523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-17.