Humana Insured Patients: Trinity Health Michigan is out of network with Humana. Humana is re-engaged in negotiations to reach a fair agreement. Patients with Medicare Advantage plans can still make changes for in-network coverage at Trinity Health hospitals and medical offices. Learn more.

MyChart

In this section

Care Sites

Our Care Sites

Trinity Health IHA Medical Group

Serving Southeast Michigan

Trinity Health Medical Group

Serving West Michigan

Probility Physical Therapy

Physical therapy services

Trinity Elite Sports Performance

Athletic development services

Douglas Zwemer, MD

Speaks

Languages

English
German

Primary Contact

(231) 747-9902

Appointments (New Patients Welcome)

Primary Contact

Locations & Contact
Education & Certifications

Locations & Contact

Primary Location

Zwemer Surgical, PLC

1745 Holton Rd
Ste C
Muskegon , MI 49445

View Details

Also Affiliated With...

Trinity Health Grand Haven Hospital

Trinity Health Shelby Hospital

Trinity Health Muskegon Hospital

Conditions Treated

Breast Care - General Surgery

Education & Certifications

Education

Residency:
Ascension St John Hospital

Medical School:
Wayne State University

Board Certifications

American Board of Surgery

(231) 747-9902