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courtesy of Trinity Health

Trinity Health’s latest surgeon Dr. Douglas Zwemer

By Mary Ellen Murphy Mar 23, 2026 | 9:11 AM

Grand Haven, MI (WGHN) – Dr. Douglas Zwemer, General Surgeon with Trinity Health Medical Group is a new provider practicing alongside Dr. Zach Horton who has been performing surgeries at Trinity Health Grand Haven for more than ten years.

 

Hear the interview below:

About Dr. Zwemer:

Dr. Zwemer graduated from Wayne State University School of Medicine. He completed his residency at Henry Ford St. John Hospital. Both providers will care for the Tri-Cities area.

 

Comprehensive Services:

The General Surgeons at Trinity Health Medical Group in Grand Haven, whenever possible and appropriate, laparoscopic and robotic surgical techniques for both inpatient and outpatient surgeries. Our practice sees patients for a variety of diseases and conditions including:

· Gallbladder Disease

· Breast Disease

· Colon, Appendiceal and Small Bowel Disease

· Foregut Disease/GERD

· Thyroid Disease (Goiters, Nodules, Cancer)

· Hernias (Inguinal, Ventral)

· Anorectal Disease (Hemorrhoids, Anal Fissures)

· Skin and Soft Tissue (Abscesses, Cysts, Lipomas, Skin Malignancy)

· Screening Colonoscopies

Convenient Location: Easily accessible and centrally located on the second floor of Harbor Dunce Health Center next to Trinity Health Grand Haven Hospital.

When to Seek Care:

For someone unsure whether they need a general surgeon, a consultation may be appropriate if they’re experiencing persistent abdominal pain, lumps or masses, changes in bowel habits, skin growths, or if they’ve been advised to follow up after a referral from their primary care provider.

About Trinity Health Medical Group, General Surgery – Grand Haven

The office is always accepting new patients and available to help with any questions. Reach them at (616) 758-4720.

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