LAUREN WOHLTJEN MSW
NPI 1164377552
Social Worker - Clinical in Ann Arbor, MI
About Lauren Wohltjen Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAUREN WOHLTJEN MSW (NPI 1164377552) is an individual clinical provider in Ann Arbor, Michigan, licensed in Michigan (6801121583) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
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)
Lauren Wohltjen Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Lauren Wohltjen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 80 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 48109 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.
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 Lauren Wohltjen's NPI number?
The NPI number for Lauren Wohltjen is 1164377552. It was assigned to this individual provider in the NPPES registry on March 2, 2026.
Where is Lauren Wohltjen located?
Lauren Wohltjen practices at 4250 Plymouth Rd, Ann Arbor, MI 48109. The listed phone number is (734) 764-0231.
What is Lauren Wohltjen's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Lauren Wohltjen enrolled in Medicare?
Yes. Lauren Wohltjen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Lauren Wohltjen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Wohltjen reassigns Medicare benefits to Regents Of The University Of Michigan (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 Lauren Wohltjen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lauren Wohltjen accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Lauren Wohltjen 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 Lauren Wohltjen was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Lauren Wohltjen, MSW · NPI 1164377552
Clinical provider in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since March 2, 2026.
## Identity
- **NPI:** 1164377552 (Entity type: Individual)
- **Enumerated:** March 2, 2026
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 6801121583 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4250 PLYMOUTH RD, Ann Arbor, MI 48109-2700
- **Phone:** (734) 764-0231
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Regents Of The University Of Michigan (NPI 1356366868, Ann Arbor, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** June 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1164377552) · Data from the CMS NPPES public registry.