SEAN MICHAEL FORTIER
NPI 1780002196
Internal Medicine - Pulmonary Disease in Ann Arbor, MI
About Sean Michael Fortier NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN MICHAEL FORTIER (NPI 1780002196) is an individual pulmonary disease provider in Ann Arbor, Michigan, licensed in Michigan (4301111733) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of Geisel School Of Medicine At Dartmouth (2014).
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 Michael Fortier 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 Fortier 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
Ann Arbor, MI 48105
- Reassigned Medicare billing, Michigan enrollment
- 124 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
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, MIPhysician 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
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 Fortier's NPI number?
The NPI number for Sean Fortier is 1780002196. It was assigned to this individual provider in the NPPES registry on April 2, 2014.
Where is Sean Fortier located?
Sean Fortier practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Sean Fortier's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Sean Fortier enrolled in Medicare?
Yes. Sean Fortier 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 Fortier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Fortier reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and St Mary Mercy Hospital Professional (Ann Arbor, 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 Fortier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sean Fortier 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 Sean Fortier 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 Fortier affiliated with any hospitals?
According to CMS data, Sean Fortier is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Sean Fortier was last updated on July 1, 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 Michael Fortier · NPI 1780002196
Pulmonary Disease physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since April 2, 2014.
## Identity
- **NPI:** 1780002196 (Entity type: Individual)
- **Enumerated:** April 2, 2014
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 4301111733 (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); St Mary Mercy Hospital Professional (NPI 1386913705, Ann Arbor, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Geisel School Of Medicine At Dartmouth, class of 2014
## Record status
- **NPPES last updated:** July 1, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1780002196) · Data from the CMS NPPES public registry.