Our DoctorsAs the premier gastroenterology practice in the Greater Cleveland area, our physicians offer the knowledge and experience valued by patients who are suffering from digestive problems and liver disease. From the most common stomach ailments to the most serious gastrointestinal issues, our Board Certified specialists are highly skilled in evaluating and treating every type of liver and digestive disorder.
To make an appointment with one of our physicians – CLICK HERE
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Jack S. Lissauer, MD
He completed his internship and residency at the University of Chicago Hospital and Clinics in Chicago, Illinois. Moving to Cleveland, Ohio, Dr. Lissauer entered the fellowship training program in gastroenterology at the Cleveland Clinic Foundation between 1974 and 1976. Immediately upon graduation, he joined Gastroenterology Associates of Cleveland. For many years, Dr. Lissauer was an attending physician teaching in the gastroenterology fellowship program at Mt. Sinai Hospital and the Veterans Administration Hospital in Cleveland, Ohio. In 1992, Dr. Lissauer received a commendation from the Department of Veterans Affairs for his clinical excellence and outstanding abilities as a teacher. Again, in 2003, Dr. Lissauer received a Public Service Achievement Award for providing outstanding healthcare service to the National Aeronautics and Space Administration’s Glenn Research Center employees.
Dr. Lissauer has interests in the following gastrointestinal problems:
- Crohn’s Disease and Ulcerative Colitis
- Chronic Hepatitis C
- Irritable Bowel Syndrome
- Colon Cancer Screening
- Gastroesophageal Reflux Disease and Erosive Esophagitis
- Abdominal Pain
- Diarrhea
To make an appointment with this physician – CLICK HERE
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Michael H. Frankel, MD
Returning to Cleveland, Dr. Frankel completed his fellowship in gastroenterology through the Case Western Reserve University combined University Hospitals and the Cleveland VA Hospital Program.
Currently, Dr. Frankel is Chief of the Division of Gastroenterology at Hillcrest Hospital in Mayfield Heights, Ohio. Under his leadership the GI Division was recognized by U.S. News and World Report as one of the top 50 in the country. He is the immediate past Chief of Staff of the Hillcrest Hospital Medical Staff and serves as the Hillcrest Hospital medical Staff representative to the Ohio State Medical and American Medical Associations. Throughout his career, he has received numerous honors and awards as one of the top gastroenterologists in the greater Cleveland area and the United States. He serves on many charitable and medical advisory boards.
Dr. Frankel has interests in the following gastrointestinal problems:
- Crohn’s Disease and Ulcerative Colitis
- Gastroesophageal Reflux Disease
- Irritable Bowel Syndrome
- Diarrhea and Constipation
- Colon Polyps and Colorectal Cancer
- Colonoscopy, Upper Endoscopy and Advanced Therapeutic Endoscopy
- Adolescent Medicine
To make an appointment with this physician – CLICK HERE
Additional Professional Staff
James J. Andrassy, M.Ed, PA-C
Mr. Andrassy holds a B.S. in Allied Health and graduated with honors from Baldwin Wallace College in Berea, Ohio. He holds an M.Ed. from Cleveland State University where his master’s project was entitled, “Advanced Computer Applications in Medical Educational Systems”. He received his degree as a Physician’s Assistant from Cuyahoga Community College in 1977, where he graduated top of his class in one of the first Physician Assistant Programs in the State of Ohio.
Prior to joining Gastroenterology Associates of Cleveland in 1993, he worked for Urology Services, Incorporated for 12 years as their hospitalist at the old Saint Luke’s Hospital in Cleveland, Ohio. Prior to that, he worked in the Employee Health Clinic at University Hospitals of Cleveland for 5 years.
Mr. Andrassy oversees the day to day operations of Gastroenterology Associates of Cleveland and the Cleveland Center for Digestive Health & Endoscopy as the Practice Administrator and HIPAA Security/Privacy Officer. Even though Mr. Andrassy works in a non-clinical capacity at this time, he still maintains all of his clinical certifications and if called upon can easily fill in for one of our physicians.
Joanne T. Longbons, PA-C
Ms. Longbons is a high quality, high energy PA with over 25 years of experience in providing empathic care to our patients. She can be reached by calling 216-593-7700, press 3 then press 2 at the prompts.
Joanne works on Tuesday, Thursday and Friday. Any messages left on Monday or Wednesday will not be returned until her next scheduled workday.