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Summary
Dr. Matthew Grunwald is a gastroenterologist and internal medicine physician who completed his medical education at Renaissance School of Medicine at Stony Brook University. He completed his residency training at University Hospital of Brooklyn, gaining comprehensive experience in both gastroenterology and internal medicine. With 11 years of clinical experience, Dr. Grunwald brings extensive knowledge in digestive health and comprehensive internal medicine care to his practice.
Dr. Grunwald is affiliated with several prominent healthcare institutions, including MaineHealth Maine Medical Center, The Barbara Bush Children's Hospital, and Northern Light Mercy Hospital, all located in Portland, Maine. He specializes in treating conditions such as colon polyps, diverticular disease, and diverticulosis. His procedural expertise includes performing colonoscopies and lower GI endoscopy procedures to diagnose and treat various digestive conditions.
Dr. Grunwald is affiliated with several prominent healthcare institutions, including MaineHealth Maine Medical Center, The Barbara Bush Children's Hospital, and Northern Light Mercy Hospital, all located in Portland, Maine. He specializes in treating conditions such as colon polyps, diverticular disease, and diverticulosis. His procedural expertise includes performing colonoscopies and lower GI endoscopy procedures to diagnose and treat various digestive conditions.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 11 years of experience
- University Hospital Of Brooklyn
- 2 specialties
- 2 areas of expertise
- 6 hospital affiliations
- 4 office locations
- Male
Office Locations
Dr. Matthew Drew Grunwald has 4 locationsPortland Gastroenterology Center
161 Marginal WayPortland, ME 04101Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 4:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  | |
| Dr. Matthew Drew Grunwald, MD | Theresa Obonyano, APRN | Dr. Tevis Hatch Gearan, MD | Dr. Jeremy Raider Estrada, MD |
| Gastroenterology | Gastroenterology | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 11 Years of Experience | 26 Years of Experience | 17 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English, French, Portuguese | Speaks English | |
| Portland , ME | Sacramento , CA | Falmouth , ME | Lewiston , ME |
| Med School: Renaissance School Of Medicine At Stony Brook University | Med School: The University of Texas Health Science Center at Houston | Med School: Tufts University School Of Medicine | Med School: Georgetown University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Matthew Drew Grunwald
Medical Specialties
Dr. Matthew Drew Grunwald has the following 2 specialties
Specialty Expertise
Dr. Matthew Drew Grunwald has the following 2 areas of expertise
Certifications, License, & Education
11 Years Experience
Dr. Matthew Drew Grunwald holds an expired medical license in the state of Maine.
Medical License
Medical Doctor with an expired medical license in the state of Maine that expired in 2025.
Education & Training
Residency
Completed their residency at University Hospital Of Brooklyn.
Medical School
Graduated from Renaissance School Of Medicine At Stony Brook University in 2015.
NPI Number
Dr. Grunwald's NPI number is 1689061954.
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Frequently Asked Questions
- Which hospitals is Dr. Matthew Grunwald affiliated with?
- Dr. Matthew Grunwald is affiliated with Mainehealth Maine Medical Center, Maimonides Medical Center, University Hospital Of Brooklyn, The Memorial Hospital, The Barbara Bush Childrens Hospital, and Northern Light Mercy Hospital.
- Where is Dr. Matthew Grunwald's office located?
- Dr. Matthew Grunwald's office is located at 161 Marginal Way, Portland, ME, 04101.
- Does Dr. Matthew Grunwald accept my insurance?
- You can see the insurance plans that Dr. Matthew Grunwald accepts on their Vitals profile.
- Is Dr. Matthew Grunwald accepting new patients?
- Dr. Matthew Grunwald is accepting new patients on Vitals. View Dr. Matthew Grunwald's profile on Vitals to make an appointment.
- Does Dr. Matthew Grunwald accept virtual/telehealth appointments?
- Dr. Matthew Grunwald has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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