Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Flis, AGPCNP-BC

Adult Health Nurse Practitioner in Farmington, CT · enumerated 2015.

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

National Provider Identifier

1922484161

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Registry record

Entity type Individual (Type 1)

Name Gregory Flis

Credential AGPCNP-BC

Sex Male

Practice address 5 Munson Rd, Farmington, CT, 06032

Phone (860) 679-6551

Fax (860) 679-0131

Enumeration date Aug 10, 2015

Last updated in NPPES Sep 16, 2026

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6221 (CT) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6221 (CT) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gregory Flis?

Gregory Flis is registered in NPPES with the primary taxonomy of Adult Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-16.