Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Geoffrey Scott Nadzam, M.D.

Surgery Physician in New Haven, CT · enumerated 2006.

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

National Provider Identifier

1548208903

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Registry record

Entity type Individual (Type 1)

Name Dr. Geoffrey Scott Nadzam

Credential M.D.

Sex Male

Practice address 330 Orchard St, Suite 309, New Haven, CT, 06511

Phone (203) 776-4677

Enumeration date Jun 4, 2006

Last updated in NPPES Jan 16, 2014

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 042451 (CT) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A74061 (CA) Secondary

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

Where does Geoffrey Nadzam practice?

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

What is the NPI number for Geoffrey Nadzam?

The National Provider Identifier (NPI) for Geoffrey Nadzam is 1548208903, 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 2014-01-16.