MS. KARIN E KELLER FNP
NPI 1750402558
Nurse Practitioner - Family in Denver, CO
About Ms. Karin E Keller Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KARIN E KELLER FNP (NPI 1750402558) is an individual family provider in Denver, Colorado, licensed in Colorado (APN0002322) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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)
Ms. Karin E Keller Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karin Keller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Highlands Ranch, CO 80126
- Reassigned Medicare billing, Colorado enrollment
- 205 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80262 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DENVER, CO 80262
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 Karin Keller's NPI number?
The NPI number for Karin Keller is 1750402558. It was assigned to this individual provider in the NPPES registry on April 2, 2007.
Where is Karin Keller located?
Karin Keller practices at 4200 E 9th Ave B-120, Denver, CO 80262. The listed phone number is (303) 372-0617.
What is Karin Keller's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karin Keller enrolled in Medicare?
Yes. Karin Keller is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karin Keller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karin Keller reassigns Medicare benefits to The Little Clinic Of Colorado, LLC (Highlands Ranch, CO). The 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 Karin Keller'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 Karin Keller was last updated on February 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Ms. Karin E Keller, FNP · NPI 1750402558
Family physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since April 2, 2007.
## Identity
- **NPI:** 1750402558 (Entity type: Individual)
- **Enumerated:** April 2, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** APN0002322 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 4200 E 9TH AVE, B-120, Denver, CO 80262-0001
- **Phone:** (303) 372-0617 · **Fax:** (303) 372-0669
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Little Clinic Of Colorado, LLC (NPI 1538354568, Highlands Ranch, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 5, 2018
- **Other identifiers:** Other 70200 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1750402558) · Data from the CMS NPPES public registry.