Overview
John Heiser is a Thoracic Surgeon in Grand Rapids, Michigan. Dr. Heiser is highly rated in 6 conditions, according to our data. His top areas of expertise are Aortic Valve Stenosis, Mitral Valve Regurgitation, Aortic Regurgitation, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).
His clinical research consists of co-authoring 33 peer reviewed articles and participating in 6 clinical trials. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- HMO
- INDEMNITY
- POS
- PPO
Locations
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
6 Clinical Trials
Corewell Health Cardiothoracic Surgery - 221 Michigan St NE
Tomasz Timek is a Thoracic Surgeon in Grand Rapids, Michigan. Dr. Timek has been practicing medicine for over 30 years is highly rated in 11 conditions, according to our data. His top areas of expertise are Tricuspid Regurgitation, Mitral Valve Regurgitation, Aortic Dissection, Heart Bypass Surgery, and Aortic Valve Replacement. Dr. Timek is currently accepting new patients.
Advantage Health/saint Mary's Medical Group
Behrooz Shabahang is a Thoracic Surgeon and a General Surgeon in Caledonia, Michigan. Dr. Shabahang is highly rated in 13 conditions, according to our data. His top areas of expertise are Lung Adenocarcinoma, Squamous Cell Lung Carcinoma, ALK-Positive Non-Small Cell Lung Cancer, Advanced Bronchoscopy, and Thymectomy. Dr. Shabahang is currently accepting new patients.
Corewell Health Cardiothoracic Surgery - 221 Michigan St NE
Stephane Sang is a Thoracic Surgeon in Grand Rapids, Michigan. Dr. Sang has been practicing medicine for over 18 years is highly rated in 10 conditions, according to our data. His top areas of expertise are Aortic Valve Stenosis, Aortic Dissection, Cystic Medial Necrosis of Aorta, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Sang is currently accepting new patients.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Elite
- Aortic Valve ReplacementDr. Heiser isElite. Learn about Aortic Valve Replacement.
- Aortic Valve StenosisDr. Heiser isElite. Learn about Aortic Valve Stenosis.
- Distinguished
- Mitral Valve RegurgitationDr. Heiser isDistinguished. Learn about Mitral Valve Regurgitation.
- Transcatheter Aortic Valve Replacement (TAVR)
- Advanced
- Aortic RegurgitationDr. Heiser isAdvanced. Learn about Aortic Regurgitation.
- Heart Valve RepairDr. Heiser isAdvanced. Learn about Heart Valve Repair.
- Experienced
- Aortic DissectionDr. Heiser isExperienced. Learn about Aortic Dissection.
- Bicuspid Aortic ValveDr. Heiser isExperienced. Learn about Bicuspid Aortic Valve.
- Cystic Medial Necrosis of AortaDr. Heiser isExperienced. Learn about Cystic Medial Necrosis of Aorta.
- Pacemaker ImplantationDr. Heiser isExperienced. Learn about Pacemaker Implantation.
- Rheumatic FeverDr. Heiser isExperienced. Learn about Rheumatic Fever.