ALLISON SHEEHAN MD
NPI 1427787811
Anesthesiology in Ann Arbor, MI
About Allison Sheehan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON SHEEHAN MD (NPI 1427787811) is an individual anesthesiology provider in Ann Arbor, Michigan, licensed in Michigan (4301517976) and active in the NPI registry since June 2022. She is enrolled in Medicare PECOS and is a graduate of Ohio State University College Of Medicine (2022).
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 and accepts Medicare assignment
Allison Sheehan 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
4Medicare enrollment records show Allison Sheehan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cadillac, MI 49601
- Reassigned Medicare billing, Michigan enrollment
- 62 clinicians in this Medicare group
Traverse City, MI 49686
- Reassigned Medicare billing, Michigan enrollment
- 191 clinicians in this Medicare group
Gaylord, MI 49735
- Reassigned Medicare billing, Michigan enrollment
- 63 clinicians in this Medicare group
Traverse City, MI 49684
- Reassigned Medicare billing, Michigan enrollment
- 74 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
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 Allison Sheehan's NPI number?
The NPI number for Allison Sheehan is 1427787811. It was assigned to this individual provider in the NPPES registry on June 9, 2022.
Where is Allison Sheehan located?
Allison Sheehan practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4280.
What is Allison Sheehan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Allison Sheehan enrolled in Medicare?
Yes. Allison Sheehan 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 Allison Sheehan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Sheehan reassigns Medicare benefits to 4 organizations: Munson Healthcare Cadillac (Cadillac, MI), Munson Medical Group (Traverse City, MI), Munson Healthcare Otsego Memorial Hospital (Gaylord, MI) and Munson Medical Center (Traverse City, 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 Allison Sheehan'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 Allison Sheehan was last updated on May 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Allison Sheehan, MD · NPI 1427787811
Anesthesiology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since June 9, 2022.
## Identity
- **NPI:** 1427787811 (Entity type: Individual)
- **Enumerated:** June 9, 2022
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 4301517976 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4280
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Munson Healthcare Cadillac (NPI 1871991596, Cadillac, MI); Munson Medical Group (NPI 1154104842, Traverse City, MI); Munson Healthcare Otsego Memorial Hospital (NPI 1124028972, Gaylord, MI); Munson Medical Center (NPI 1710735287, Traverse City, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 2022
## Record status
- **NPPES last updated:** May 13, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1427787811) · Data from the CMS NPPES public registry.