DR. WILLIAM D TRESSEL D.O.
NPI 1174785505
Emergency Medicine in Wyoming, MI
About Dr. William D Tressel D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM D TRESSEL D.O. (NPI 1174785505) is an individual emergency medicine provider in Wyoming, Michigan, licensed in Michigan (2601946) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with The Medical Center (bowling Green), and maintains a secondary practice location in Bowling Green.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. William D Tressel D.o. 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
16Medicare enrollment records show William Tressel reassigns Medicare billing to 16 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Plainwell, MI 49080
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Ascension Borgess Hospital
- 247 clinicians in this Medicare group
Kalamazoo, MI 49048
- Reassigned Medicare billing, Michigan enrollment
- 81 clinicians in this Medicare group
Marshall, MI 49068
- Reassigned Medicare billing, Michigan enrollment
- 168 clinicians in this Medicare group
Flushing, MI 48433
- Reassigned Medicare billing, Michigan enrollment
- 416 clinicians in this Medicare group
Flint, MI 48532
- Reassigned Medicare billing, Michigan enrollment
- 444 clinicians in this Medicare group
Adrian, MI 49221
- Reassigned Medicare billing, Michigan enrollment
- 95 clinicians in this Medicare group
Manistique, MI 49854
- Reassigned Medicare billing, Michigan enrollment
- 78 clinicians in this Medicare group
Chillicothe, OH 45601
- Reassigned Medicare billing, Ohio enrollment
- 99 clinicians in this Medicare group
Jeffersonville, IN 47130
- Reassigned Medicare billing, Kentucky enrollment
- 1,441 clinicians in this Medicare group
Houghton, MI 49931
- Reassigned Medicare billing, Michigan enrollment
- 130 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 4
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The Medical Center (bowling Green)
Acute Care Hospitals · Bowling Green, KYAspirus Keweenaw Hospital And Clinics
Critical Access Hospitals · Laurium, MIAdena Regional Medical Center
Acute Care Hospitals · Chillicothe, OHAdena Pike Medical Center
Critical Access Hospitals · Waverly, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49519 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.
WYOMING, MI 49519
WYOMING, MI 49519
WYOMING, MI 49519
WYOMING, MI 49519
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 William Tressel's NPI number?
The NPI number for William Tressel is 1174785505. It was assigned to this individual provider in the NPPES registry on June 26, 2008.
Where is William Tressel located?
William Tressel practices at 5900 Byron Center Ave SW, Wyoming, MI 49519. The listed phone number is (616) 252-7200.
What is William Tressel's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Tressel enrolled in Medicare?
Yes. William Tressel 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 William Tressel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Tressel reassigns Medicare benefits to 16 organizations: Beacon Kalamazoo Inc (Plainwell, MI), Vituity-Michigan Health Services PC (Kalamazoo, MI), Cep America LLC (Marshall, MI), Mclaren Medical Group (Flushing, MI), Mclaren Hospital Group (Flint, MI) and 11 more organizations, listed in the Medicare section above. 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 William Tressel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Tressel accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Arizona and Blue Cross Blue Shield of Michigan Mutual Insurance Company list William Tressel 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 William Tressel affiliated with any hospitals?
According to CMS data, William Tressel is affiliated with The Medical Center (bowling Green), Aspirus Keweenaw Hospital And Clinics, Adena Regional Medical Center and Adena Pike Medical Center.
When was this NPI record last updated?
The NPPES record for William Tressel was last updated on February 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. William D Tressel, D.O. · NPI 1174785505
Emergency Medicine physician in Wyoming, Michigan. Individual provider, active in the CMS NPPES registry since June 26, 2008.
## Identity
- **NPI:** 1174785505 (Entity type: Individual)
- **Enumerated:** June 26, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 2601946 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 5900 BYRON CENTER AVE SW, Wyoming, MI 49519-9606
- **Phone:** (616) 252-7200
## 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:** 16 organizations under Medicare reassignment (form CMS-855R): Beacon Kalamazoo Inc (NPI 1821045212, Plainwell, MI); Vituity-Michigan Health Services PC (NPI 1750102323, Kalamazoo, MI); Cep America LLC (NPI 1578243796, Marshall, MI); Mclaren Medical Group (NPI 1053458091, Flushing, MI); Mclaren Hospital Group (NPI 1942026174, Flint, MI); and 11 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2008
## Record status
- **NPPES last updated:** February 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1174785505) · Data from the CMS NPPES public registry.