Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eaton Chen, MD

Q: What is the NPI number for Eaton Chen?

The National Provider Identifier (NPI) for Eaton Chen is 1619991015, a Type 1 (individual) record in the CMS NPPES registry.

Otolaryngology Physician in New Haven, CT · enumerated 2006.

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

National Provider Identifier

1619991015

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Registry record

Entity type Individual (Type 1)

Name Eaton Chen

Credential MD

Sex Male

Practice address 1 Long Wharf Dr, Suite 302, New Haven, CT, 06511

Phone (203) 865-4314

Fax (203) 776-7741

Enumeration date Jul 27, 2006

Last updated in NPPES Jul 2, 2009

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 026681 (CT) Primary

207YX0602X Otolaryngic Allergy Physician Allopathic & Osteopathic Physicians · License 026681 (CT) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
040001310	Other	CT	RAILROAD MEDICARE PIN
001266816	Medicaid	CT	-

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 Eaton Chen 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 Eaton Chen?

The National Provider Identifier (NPI) for Eaton Chen is 1619991015, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-02.