MRS. MARIANNE WARREN OTR/L
NPI 1609316876
Occupational Therapist in Fort Collins, CO
About Mrs. Marianne Warren Otr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARIANNE WARREN OTR/L (NPI 1609316876) is an individual occupational therapist in Fort Collins, Colorado, licensed in Colorado (OT.0004962) and active in the NPI registry since March 2017. She is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Marianne Warren Otr/l is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Marianne Warren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Windsor, CO 80550
- Reassigned Medicare billing, Colorado enrollment
- 128 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Marianne Warren's NPI number?
The NPI number for Marianne Warren is 1609316876. It was assigned to this individual provider in the NPPES registry on March 7, 2017.
Where is Marianne Warren located?
Marianne Warren practices at 1918 W Stuart St, Fort Collins, CO 80526. The listed phone number is (970) 685-1941.
What is Marianne Warren's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Marianne Warren enrolled in Medicare?
Yes. Marianne Warren is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Marianne Warren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marianne Warren reassigns Medicare benefits to Covell Care And Rehabilitation, LLC (Windsor, 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 Marianne Warren'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 Marianne Warren was last updated on March 7, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.