Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jeffrey A Kopp, MD

Family Medicine Physician in Guilford, CT · enumerated 2006 · practices at Endoscopy Center of Connecticut, LLC.

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

National Provider Identifier

1659384733

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Jeffrey A Kopp

Credential MD

Sex Male

Practice address 1591 Boston Post Rd, Suite 100, Guilford, CT, 06437

Phone (203) 453-9911

Fax (203) 458-1905

Enumeration date Aug 13, 2006

Last updated in NPPES Jan 14, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 025711 (CT) 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 1659384733 active?

Yes, as of the latest NPPES snapshot, NPI 1659384733 is active (record last updated 2011-01-14).

How do I verify Jeffrey Kopp's NPI record?

Cross-check NPI 1659384733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Anne Youngling Family Medicine Physician · Guilford, CT NPI 1245242643 Endoscopy Center of Connecticut, LLC Endoscopy Clinic/Center · Guilford, CT NPI 1326131418

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-14.