Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John T Dunlop, MD

Internal Medicine Physician in New Haven, CT · enumerated 2006.

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

National Provider Identifier

1124137286

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Registry record

Entity type Individual (Type 1)

Name Mr. John T Dunlop

Credential MD

Sex Male

Practice address 874 Howard Ave, New Haven, CT, 06519

Phone (203) 688-8200

Fax (203) 688-8204

Enumeration date Aug 30, 2006

Last updated in NPPES Mar 30, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 52936 (CT) Primary

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
5476347	Other	CT	CIGNA
1124137286	Medicaid	CT	-
446815	Other	CT	HEALTHY CT
1124137286	Other	CT	ANTHEM
1124137286	Other	CT	MULTIPLAN
P01396400	Other	CT	RR MEDICARE
1289323	Other	CT	COVENTRY
1124137286	Other	CT	CONNECTICARE
AA417900	Other	CT	HARVARD PILGRIM
1124137286	Other	CT	UNITED HEALTHCARE
1077074	Other	CT	WELLCARE
1124137286	Other	CT	TRICARE
P5110395	Other	CT	OXFORD
4403455	Other	CT	AETNA

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.

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Frequently asked questions

How do I verify John Dunlop's NPI record?

Cross-check NPI 1124137286 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124137286 active?

Yes, as of the latest NPPES snapshot, NPI 1124137286 is active (record last updated 2017-03-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-30.