DR. GREGORY S ABEL O.D.
NPI 1720077043
Optometrist in Ft Collins, CO
About Dr. Gregory S Abel O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY S ABEL O.D. (NPI 1720077043) is an individual optometrist in Ft Collins, Colorado, licensed in Colorado (CO1941) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Gregory S Abel O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gregory Abel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Collins, CO 80525
- Reassigned Medicare billing, Colorado enrollment
- 3 clinicians in this Medicare group
Denver, CO 80222
- Reassigned Medicare billing, Colorado enrollment
- 70 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80525 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Abel's NPI number?
The NPI number for Gregory Abel is 1720077043. It was assigned to this individual provider in the NPPES registry on October 19, 2005.
Where is Gregory Abel located?
Gregory Abel practices at 2111 Custer Drive, Ft Collins, CO 80525. The listed phone number is (970) 224-9880.
What is Gregory Abel's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Gregory Abel enrolled in Medicare?
Yes. Gregory Abel is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gregory Abel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Abel reassigns Medicare benefits to 2 organizations: Drs Abel & Abel Inc (Fort Collins, CO) and One Hour Optical Medical Services, PC (Denver, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Abel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gregory Abel was last updated on July 19, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.