0 reviews
Summary
Dr. Stephen Simmer treats colon polyps, esophagitis, and tobacco use disorder, and performs upper GI endoscopy. He practices gastroenterology and internal medicine in Grand Rapids and Greenville, Michigan. Dr. Simmer is affiliated with Select Specialty Hospital Spectrum Health, Corewell Health Butterworth Hospital, Corewell Health Lakeland Hospitals St Joseph Hospital, Corewell Health Watervliet Hospital, Corewell Health United, University of Michigan Health System, and Spectrum Health Hospitals. He earned his medical degree from Wayne State University School of Medicine.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 10 years of experience
- Wayne State University School Of Medicine
- 2 specialties
- 1 area of expertise
- 7 hospital affiliations
- 5 office locations
- Male
Office Locations
Dr. Stephen Gabriel Simmer has 5 locationsCorewell Health Medical Group
4100 Lake Dr SE Ste 205Grand Rapids, MI 49546 Tel: (616) 267-7414
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
Corewell Health Gastroenterology South Pavilion
80 68th St SEGrand Rapids, MI 49548Mon8:00 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
Corewell Health Grand Rapids Hospitals Endoscopy
4100 Lake Dr Se Ste D105Grand Rapids, MI 49546 Tel: (616) 391-7580
Mon7:30 am - 5:30 pm
Tue7:30 am - 5:30 pm
Wed7:30 am - 5:30 pm
Thu7:30 am - 5:30 pm
Fri7:30 am - 5:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Stephen Gabriel Simmer, MD | Theresa Obonyano, APRN | Dr. Timothy John Donohue, MD | Dr. Emily Wei-Shin Sheng, MD |
| Gastroenterology | Gastroenterology | Diagnostic Radiology | Hospital Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 10 Years of Experience | 16 Years of Experience | 13 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| Grand Rapids , MI | Sacramento , CA | Ann Arbor , MI | Grand Rapids , MI |
| Med School: Wayne State University School Of Medicine | Med School: The University of Texas Health Science Center at Houston | Med School: University Of Kansas School Of Medicine | Med School: Midwestern University-Chicago College Of Osteopathic Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Stephen Gabriel Simmer
Medical Specialties
Dr. Stephen Gabriel Simmer has the following 2 specialties
Specialty Expertise
Dr. Stephen Gabriel Simmer has the following area of expertise
Certifications, License, & Education
10 Years Experience
Dr. Stephen Gabriel Simmer holds an expired medical license in the state of Michigan.
Medical License
Medical Doctor with an expired medical license in the state of Michigan that expired in 2026.
Education & Training
Medical School
Graduated from Wayne State University School Of Medicine in 2016.
NPI Number
Dr. Simmer's NPI number is 1972953917.
Similar doctors
Frequently Asked Questions
- Is Dr. Stephen Simmer accepting new patients?
- Dr. Stephen Simmer is accepting new patients on Vitals. View Dr. Stephen Simmer's profile on Vitals to make an appointment.
- Where is Dr. Stephen Simmer's office located?
- Dr. Stephen Simmer's office is located at 4100 Lake Dr SE Ste 205, Grand Rapids, MI, 49546.
- Which hospitals is Dr. Stephen Simmer affiliated with?
- Dr. Stephen Simmer is affiliated with Select Specialty Hospital Spectrum Health, Corewell Health Butterworth Hospital, Corewell Health Lakeland Hospitals St Joseph Hospital, Corewell Health Watervliet Hospital, Corewell Health United, UNIVERSITY OF MICHIGAN HEALTH SYSTEM, and Spectrum Health Hospitals.
- Does Dr. Stephen Simmer accept my insurance?
- You can see the insurance plans that Dr. Stephen Simmer accepts on their Vitals profile.
- How can I make an appointment with Dr. Stephen Simmer?
- You can find contact information for Dr. Stephen Simmer here on Vitals.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.



