SEAN ZAGER, MD, PLLC
NPI 1801377965
Clinic/Center - Primary Care in Ann Arbor, MI
About Sean Zager, Md, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN ZAGER, MD, PLLC (NPI 1801377965) is a healthcare organization registered as a primary care in Ann Arbor, Michigan and active in the NPI registry since August 2018. The organization lists Sean Howard Zager, Family Physician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sean Zager, Md, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Sean Zager, MD, PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Sean Zager, MD, PLLC's NPI number?
The NPI number for Sean Zager, MD, PLLC is 1801377965. It was assigned to this organization in the NPPES registry on August 27, 2018.
Where is Sean Zager, MD, PLLC located?
Sean Zager, MD, PLLC is located at 2800 S State St Ste 215, Ann Arbor, MI 48104. The listed phone number is (734) 945-2850.
What is Sean Zager, MD, PLLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Sean Zager, MD, PLLC enrolled in Medicare?
Yes. Sean Zager, MD, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Sean Zager, MD, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Sean Zager, MD, PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Sean Zager, MD, PLLC accept?
Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company list Sean Zager, MD, PLLC 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 Sean Zager, MD, PLLC was last updated on August 27, 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.
# Sean Zager, Md, Pllc · NPI 1801377965
Primary Care organization in Ann Arbor, Michigan. Organization record, active in the CMS NPPES registry since August 27, 2018.
## Identity
- **NPI:** 1801377965 (Entity type: Organization)
- **Enumerated:** August 27, 2018
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Sean Zager, FAMILY PHYSICIAN
## Practice location
- **Address:** 2800 S STATE ST STE 215, Ann Arbor, MI 48104-7103
- **Phone:** (734) 945-2850
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Family Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 27, 2018
---
Source: [NPI Profile](https://npiprofile.com/npi/1801377965) · Data from the CMS NPPES public registry.