Summary

Dr. Mark Zeglis is a gastroenterologist and internal medicine physician who earned his medical degree from the University of Michigan Medical School. With 25 years of experience in practice, he brings extensive expertise to digestive health care and comprehensive internal medicine. Dr. Zeglis is fluent in both English and Spanish, allowing him to serve diverse patient populations throughout southeastern Michigan.

Dr. Zeglis practices at multiple Trinity Health locations, including Trinity Health Ann Arbor Hospital, Trinity Health Michigan Chelsea Hospital, and Trinity Health Livingston Hospital in Ypsilanti, Chelsea, and Howell. He specializes in treating colon polyps and hemorrhoids, as well as managing upper gastrointestinal bleeding. His procedural expertise includes performing colonoscopies and lower gastrointestinal endoscopy procedures using sedation techniques to ensure patient comfort. Patients rate Dr. Zeglis highly for his care, giving him an average rating of 4.9 out of 5 stars.
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Quick Facts

  • accepting new patients
  • 4.9
  • 25 years of experience
  • speaks English, Spanish
  • University Of Michigan Medical School
  • 33 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 8 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Mark David Zeglis has 8 locations

Trinity Health Ann Arbor Hospital

5301 Mcauley DrYpsilanti, MI 48197

Chelsea Hospital

775 S Main StChelsea, MI 48118

Huron Gastroenterology

7575 Grand River RdBrighton, MI 48114
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Center For Advanced Medicine And Surgery

1600 S Canton Center Rd Ste 2200Canton, MI 48188
Mon7:00 am - 4:00 pm
Tue7:00 am - 4:00 pm
Wed7:00 am - 4:00 pm
Thu7:00 am - 4:00 pm
Fri7:00 am - 4:00 pm
Sat7:00 am - 12:00 pm
Sun9:00 am - 11:00 am

Huron Gastroenterology

14650 E OLD US HIGHWAY 12 STE 202CHELSEA, MI 48118
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Huron Gastroenterology

36650 5 Mile Rd Ste 100Livonia, MI 48154
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Mark David Zeglis, MD
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Dr. Mark David Zeglis, MDDr. Eugene Yuan Su, MDDr. Hassan Ali Saghir, MDDr. Vandan Sunil Shah, MD
GastroenterologyInternal MedicineFamily MedicineDermatology
Accepts New Patients Accepts New Patients
4.9 
1.3 
4.5 
25 Years of Experience 51 Years of Experience 21 Years of Experience 12 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
Ypsilanti , MIYpsilanti , MIAllen Park , MIChelsea , MI
Med School: University Of Michigan Medical School Med School: University Of Rochester School Of Medicine And Dentistry Med School: Wayne State University School Of Medicine Med School: University Of Michigan Medical School
Current Profile
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Insurance Plans Accepted by Dr. Mark David Zeglis

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Mark David Zeglis has the following 2 specialties

Specialty Expertise

Dr. Mark David Zeglis has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

25 Years Experience

MEDICAL LICENSE

Medical Doctor, Michigan, 2026, Expired

EDUCATION & TRAINING

Medical School

University Of Michigan Medical SchoolGraduated in 2001

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Frequently Asked Questions

Where is Dr. Mark Zeglis's office located?
Dr. Mark Zeglis's office is located at 5301 Mcauley Dr, Ypsilanti, MI, 48197.
Which hospitals is Dr. Mark Zeglis affiliated with?
Dr. Mark Zeglis is affiliated with Trinity Health Ann Arbor Hospital, Trinity Health Michigan Chelsea Hospital, Trinity Health Livingston Hospital, and Mcn Health.
How can I make an appointment with Dr. Mark Zeglis?
You can find contact information for Dr. Mark Zeglis here on Vitals.
Does Dr. Mark Zeglis accept my insurance?
You can see the insurance plans that Dr. Mark Zeglis accepts on their Vitals profile.
Is Dr. Mark Zeglis accepting new patients?
Dr. Mark Zeglis is accepting new patients on Vitals. View Dr. Mark Zeglis's profile on Vitals to make an appointment.

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