
Trinity Health Medical Group, Cardiology
Cardiology • Muskegon, MI
About
Trinity Health Medical Group, Cardiology in Muskegon, Michigan offers electrophysiology services through University of Michigan Health providers. The clinic is located at 1223 Mercy Drive and provides free parking including handicapped-designated spaces.
Clinic Type
Cardiology
Address
1223 Mercy Drive, Muskegon, MI 49444
Phone
734-545-4435
mzedro@med.umich.edu
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Technology & Equipment
Insurance & Payment
—
Languages Spoken
—
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Douglas Stewart): 38 Reviews (no overall star rating shown in snippet) (38)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. David Bonnema): 72 Reviews (no overall star rating shown in snippet) (72)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Eric Shafer): 37 Reviews (no overall star rating shown in snippet) (37)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Abiy Nigatu): 63 Reviews (no overall star rating shown in snippet) (63)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Thomas Hill): 4.9 out of 5 (45 Reviews)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Angela Ghuneim): 73 Reviews (no overall star rating shown in snippet) (73)
- Trinity Health Medical Group, Cardiology - Muskegon (Dr. Emma Hegwood): 4.9 out of 5 (6 Reviews)
- Trinity Health Medical Group, Cardiology - Muskegon (PA Gerard Gole): 4.9 out of 5 (53 Reviews)
Patients praise
- Doctors and staff are described as spending time, listening, and communicating clearly (thorough explanations, answering questions, explaining in an understandable way)
- Providers are described as professional, personable, compassionate, and patient-centered (e.g., not rushing; treating patients as people; caring and kindness)
- Patients frequently express high confidence and satisfaction with care and follow-up plans
Common complaints
- Scheduling/availability issues: difficulty getting appointments or long waits to see the doctor
- Occasional experience of being rushed or not getting sufficient time/“money’s worth” (one review)
- Medication side effects / lack of perceived responsiveness to side effects (one review)
"The frustration was getting my yearly appt. scheduled. It never happened even after I called to request this."
— Douglas Stewart, MD | Trinity Health Michigan (Cardiology - Muskegon)"The only complaint I have is that it took three months to get an appointment."
— David Bonnema, MD (Cardiology - Muskegon)"Just not impressed. I'm having horrendous side effects from the medicines prescribed and she doesn't seem to care."
— Angela Ghuneim, DO | Trinity Health Michigan (Cardiology - Muskegon)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Michigan’s Leader in Implants to Reduce AFib-Related Stroke Risk | Trinity Health Michigan — Feb 12, 2026
- Minimally invasive technology helps control hypertension | Trinity Health Michigan — Mar 17, 2026
- Back In Rhythm: Pulsed Field Ablation Brings Renewed Hope for AFib Patients | Trinity Health Michigan — Jan 13, 2026
- Trinity Health Muskegon Now Treating Patients with Minimally Invasive Technology to Help Control Blood Pressure | News | shorelinemedia.net — Mar 28, 2026
- Trinity Health Grand Rapids Treats First Patient in West Michigan with New, Minimally Invasive Technology to Help Control Blood Pressure | Trinity Health Michigan — Aug 12, 2025
Information sourced from the clinic's website as of July 11, 2026.
More cardiology clinics in Muskegon
Corewell Health is a nonprofit health system formed in 2022 from the Beaumont Health and Spectrum Health merger. Headquartered in Grand Rapids, MI, it is Michigan’s largest health system by inpatient admissions and net patient revenue, operating 22 hospitals (as of 2025) across Metro Detroit and West Michigan, including Grand Rapids and Muskegon. The system offers a connected network of care with same-day care options for non-life-threatening conditions and emphasizes health equity and community health. Key leadership includes Tina Freese Decker (CEO). If you’re specifically seeking cardiovascular services in Grand Rapids or Muskegon, Corewell Health provides comprehensive cardiovascular care via its West Michigan facilities, with a vascular program noted for inpatient vascular verification, indicating credentialed, high-standard vascular services within the system. For more precise hospital-by-hospital cardiovascular capabilities (University/Academic affiliations, specific cardiology subspecialties, or Muskegon site details), visiting the Corewell Health cardiovascular services page or contacting the Grand Rapids/Muskegon facilities directly is recommended.
Trinity Health Medical Group, Cardiology in Muskegon, MI offers comprehensive cardiac care including arrhythmia management, congestive heart failure treatment, and cardiac catheterizations. The clinic provides both outpatient cardiac health management services and inpatient hospital procedures such as coronary angioplasty, pacemaker implantation, and structural heart procedures. Board-certified cardiology experts are available Monday through Friday, 8:00am to 5:00pm.
Your clinic’s marketing team, powered by AI.On-brand ads, SEO, and social campaigns in one place.Generate your first clinic ad for free
Get more revenue from the patients you already have.Voice and SMS that follow up until lapsed patients are back on the schedule.Book a Clincy call
Your practice’s fractional recruiting team.Dental-only search, run end to end, with placements guaranteed for a year.Find your next hire Comparing your options?
See other cardiology clinics in Muskegon, or search the full directory by insurance, ratings, and more.