NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory S Abel, O.D.

Optometrist in Ft Collins, CO · enumerated 2005.

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

National Provider Identifier

1720077043

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Gregory S Abel
Credential O.D.
Sex Male
Practice address 2111 Custer Drive, Ft Collins, CO, 80525
Fax (970) 224-9881
Enumeration date Oct 19, 2005
Last updated in NPPES Jul 19, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License CO1941 (CO) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
29505526 Medicaid CO -

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 1720077043 active?
Yes, as of the latest NPPES snapshot, NPI 1720077043 is active (record last updated 2012-07-19).
How do I verify Gregory Abel's NPI record?
Cross-check NPI 1720077043 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-19.