Overview
John Quertermus is a Gastroenterologist in Kalamazoo, Michigan. Dr. Quertermus is rated as an Experienced provider by MediFind in the treatment of Swallowing Difficulty. His top areas of expertise are Esophagitis, Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Swallowing Difficulty, and Endoscopy.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- HMO
- INDEMNITY
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
Gastroenterology Associates Of Western Michigan Plc
Allan Coates is a Gastroenterologist in Wyoming, Michigan. Dr. Coates is rated as a Distinguished provider by MediFind in the treatment of Swallowing Difficulty. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Crohn's Disease, Gastrectomy, and Endoscopy.
Troy Gastroenterology PC
Siaka Yusuf is a Gastroenterologist in Eaton Rapids, Michigan. Dr. Yusuf is rated as a Distinguished provider by MediFind in the treatment of Swallowing Difficulty. His top areas of expertise are Chronic Erosive Gastritis, Swallowing Difficulty, Painful Swallowing, Gastrectomy, and Colonoscopy.
Sparrow Ionia Hospital
Iftiker Ahmad is a Gastroenterologist in Ionia, Michigan. Dr. Ahmad is rated as a Distinguished provider by MediFind in the treatment of Swallowing Difficulty. His top areas of expertise are Visceromegaly, Anemia, Bacterial Gastroenteritis, Endoscopy, and Colonoscopy. Dr. Ahmad 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
- Advanced
- EsophagitisDr. Quertermus isAdvanced. Learn about Esophagitis.
- Experienced
- AchalasiaDr. Quertermus isExperienced. Learn about Achalasia.
- Barrett EsophagusDr. Quertermus isExperienced. Learn about Barrett Esophagus.
- Benign Esophageal StrictureDr. Quertermus isExperienced. Learn about Benign Esophageal Stricture.
- Chronic Erosive GastritisDr. Quertermus isExperienced. Learn about Chronic Erosive Gastritis.
- ColitisDr. Quertermus isExperienced. Learn about Colitis.
- Crohn's DiseaseDr. Quertermus isExperienced. Learn about Crohn's Disease.