TREY JOSEPH SHAUGHNESSY DO
NPI 1871298323
Emergency Medicine in Detroit, MI
About Trey Joseph Shaughnessy Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TREY JOSEPH SHAUGHNESSY DO (NPI 1871298323) is an individual emergency medicine provider in Detroit, Michigan, licensed in Michigan (5101028886) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, is affiliated with Ascension Providence Hospital, Southfield And Novi, and is a graduate of Michigan State University College Of Osteopathic Medicine (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 and accepts Medicare assignment
Trey Joseph Shaughnessy Do 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
3Medicare enrollment records show Trey Shaughnessy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Independent Emergency Physicians PC
- 273 clinicians in this Medicare group
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- 239 clinicians in this Medicare group
Jackson, MI 49201
- Reassigned Medicare billing, Michigan enrollment
- 48 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Providence Hospital, Southfield And Novi
Acute Care Hospitals · Southfield, MIHenry Ford Allegiance Health
Acute Care Hospitals · Jackson, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48201 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.
DETROIT, MI 48201
DETROIT, MI 48201
DETROIT, MI 48201
DETROIT, MI 48201
DETROIT, MI 48201
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 Trey Shaughnessy's NPI number?
The NPI number for Trey Shaughnessy is 1871298323. It was assigned to this individual provider in the NPPES registry on April 4, 2023.
Where is Trey Shaughnessy located?
Trey Shaughnessy practices at 4201 Saint Antoine St # 9C, Detroit, MI 48201. The listed phone number is (313) 745-5147.
What is Trey Shaughnessy's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Trey Shaughnessy enrolled in Medicare?
Yes. Trey Shaughnessy 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 Trey Shaughnessy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Trey Shaughnessy reassigns Medicare benefits to 3 organizations: Independent Emergency Physicians, P.C. (Southfield, MI), Independent Observation Physicians PLLC (Southfield, MI) and Iep Observation Medicine - Jackson PLLC (Jackson, 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 Trey Shaughnessy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Trey Shaughnessy accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Trey Shaughnessy 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 Trey Shaughnessy affiliated with any hospitals?
According to CMS data, Trey Shaughnessy is affiliated with Ascension Providence Hospital, Southfield And Novi and Henry Ford Allegiance Health.
When was this NPI record last updated?
The NPPES record for Trey Shaughnessy was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.
# Trey Joseph Shaughnessy, DO · NPI 1871298323
Emergency Medicine physician in Detroit, Michigan. Individual provider, active in the CMS NPPES registry since April 4, 2023.
## Identity
- **NPI:** 1871298323 (Entity type: Individual)
- **Enumerated:** April 4, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 5101028886 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4201 SAINT ANTOINE ST # 9C, Detroit, MI 48201-2153
- **Phone:** (313) 745-5147
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Independent Emergency Physicians, P.C. (NPI 1780791343, Southfield, MI); Independent Observation Physicians PLLC (NPI 1700119500, Southfield, MI); Iep Observation Medicine - Jackson PLLC (NPI 1982478251, Jackson, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2023
## Record status
- **NPPES last updated:** September 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871298323) · Data from the CMS NPPES public registry.