MCKENZIE MORTENSEN MS OTR/L
NPI 1336508159
Occupational Therapist in Ann Arbor, MI
About Mckenzie Mortensen Ms Otr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MCKENZIE MORTENSEN MS OTR/L (NPI 1336508159) is an individual occupational therapist in Ann Arbor, Michigan, licensed in Michigan (5201012978) and active in the NPI registry since February 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 (PECOS)
Mckenzie Mortensen Ms Otr/l is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mckenzie Mortensen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48103
- Reassigned Medicare billing, Michigan enrollment
- 23 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.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Mckenzie Mortensen's NPI number?
The NPI number for Mckenzie Mortensen is 1336508159. It was assigned to this individual provider in the NPPES registry on February 22, 2016.
Where is Mckenzie Mortensen located?
Mckenzie Mortensen practices at 1540 E Hospital Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Mckenzie Mortensen's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Mckenzie Mortensen enrolled in Medicare?
Yes. Mckenzie Mortensen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mckenzie Mortensen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mckenzie Mortensen reassigns Medicare benefits to Aa Therapy Works, LLC (Ann Arbor, MI). 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 Mckenzie Mortensen'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 Mckenzie Mortensen was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.