DEREK FRANZEN
NPI 1437826609
Occupational Therapist in Janesville, WI
About Derek Franzen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK FRANZEN (NPI 1437826609) is an individual occupational therapist in Janesville, Wisconsin and active in the NPI registry since August 2021.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Derek Franzen is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Derek Franzen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JANESVILLE, WI 53548
JANESVILLE, WI 53548
JANESVILLE, WI 53548
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 Derek Franzen's NPI number?
The NPI number for Derek Franzen is 1437826609. It was assigned to this individual provider in the NPPES registry on August 25, 2021.
Where is Derek Franzen located?
Derek Franzen practices at 1000 Mineral Point Ave, Janesville, WI 53548. The listed phone number is (608) 756-6000.
What is Derek Franzen's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Derek Franzen enrolled in Medicare?
Yes. Derek Franzen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Derek Franzen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Franzen reassigns Medicare benefits to Mercy Health System Corporation (Janesville, WI). 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 Derek Franzen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derek Franzen accept?
Health plans from Anthem Blue Cross and Blue Shield list Derek Franzen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Derek Franzen was last updated on August 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.