SEAN GARRETT EWING MD
NPI 1568721249
Anesthesiology in Ann Arbor, MI
About Sean Garrett Ewing Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN GARRETT EWING MD (NPI 1568721249) is an individual anesthesiology provider in Ann Arbor, Michigan, licensed in Michigan (4301100255) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of University Of Michigan Medical School (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Sean Garrett Ewing Md 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 Reassignments
2Medicare enrollment records show Sean Ewing reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 2,377 clinicians in this Medicare group
Lansing, MI 48912
- Reassigned Medicare billing, Michigan enrollment
- 265 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIOther 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
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 Sean Ewing's NPI number?
The NPI number for Sean Ewing is 1568721249. It was assigned to this individual provider in the NPPES registry on May 15, 2012.
Where is Sean Ewing located?
Sean Ewing practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Sean Ewing's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Sean Ewing enrolled in Medicare?
Yes. Sean Ewing 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 organizations bill Medicare for Sean Ewing's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Ewing reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and Edward W Sparrow Hospital Association (Lansing, MI). Each 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 Sean Ewing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sean Ewing accept?
Health plans from Priority Health list Sean Ewing 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.
Is Sean Ewing affiliated with any hospitals?
According to CMS data, Sean Ewing is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Sean Ewing was last updated on February 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 Garrett Ewing, MD · NPI 1568721249
Anesthesiology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since May 15, 2012.
## Identity
- **NPI:** 1568721249 (Entity type: Individual)
- **Enumerated:** May 15, 2012
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 4301100255 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI); Edward W Sparrow Hospital Association (NPI 1568867190, Lansing, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2012
## Record status
- **NPPES last updated:** February 21, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1568721249) · Data from the CMS NPPES public registry.