CAROL A GANNON APN
NPI 1538330113
Nurse Practitioner - Family in Greeley, CO
About Carol A Gannon Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROL A GANNON APN (NPI 1538330113) is an individual family provider in Greeley, Colorado, licensed in Colorado (APN.0002761-NP) and active in the NPI registry since March 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Carol A Gannon Apn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Carol Gannon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greeley, CO 80634
- Reassigned Medicare billing, Colorado enrollment
- 38 clinicians in this Medicare group
Boulder, CO 80302
- Reassigned Medicare billing, Colorado enrollment
- 314 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
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 80634 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREELEY, CO 80634
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 Carol Gannon's NPI number?
The NPI number for Carol Gannon is 1538330113. It was assigned to this individual provider in the NPPES registry on March 21, 2008.
Where is Carol Gannon located?
Carol Gannon practices at 6801 W 20th St Unit 101, Greeley, CO 80634. The listed phone number is (970) 378-8000.
What is Carol Gannon's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Carol Gannon enrolled in Medicare?
Yes. Carol Gannon is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Carol Gannon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carol Gannon reassigns Medicare benefits to 2 organizations: Family Physicians Of Greeley LLP (Greeley, CO) and Optumcare Colorado Medical Group LLC (Boulder, 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 Carol Gannon'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 Carol Gannon was last updated on April 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.