
Appointments
513-233-4100
Office Location
3310 Mercy Health Blvd Suite 230 Cincinnati, OH 45211
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David D. Hess, M.D.
Areas of expertise - Gastroesophageal reflux disease, Barrett’s esophagus, Irritable bowel syndrome, Inflammatory bowel disease, colon polyps, colon cancer screening, liver disease, pancreatic and biliary tract disease
Education:
- Undergraduate: University of Cincinnati, BA, 1980
- Medical school: Ohio State University College of Medicine, MD, 1984
- Internship: Good Samaritan Hospital- Cincinnati, Ohio, 1984-1985
- Residency: Good Samaritan Hospital- Cincinnati, Ohio, 1985-1987
- Chief Medical Resident: Good Samaritan Hospital- Cincinnati, Ohio, 1987-1988
- Fellowship: Gastroenterology/Hepatology/Nutrition- VA Medical Center, Boston University School of Medicine- Boston, Massachusetts, 1988-1990
Certification:
- State Medical Board of Ohio, 1984
- Board Certified in Internal Medicine, 1998
- Board Certified in Gastroenterology,1993
- Recertification American Board of Internal Medicine-Gastroenterology, 2003-2013
- Recertification American Board of Internal Medicine-Gastroenterology, 2013-2023
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Appointments 513-231-9010
Office Location 7661 Beechmont Suite 120 Cincinnati, Ohio 45255
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Stephen L. Ionna, M.D.
Areas of Expertise: Colon Cancer, Colon Polyps, Intestinal bleeding, Abdominal Pain, Inflammatory Bowel Disease, and Biliary Endoscopy (the removal of gallstones with an endoscope)
Education
- Undergraduate: University of Kentucky, Lexington, Kentucky, 1975-1979
- Graduate School: University of Cincinnati, Graduate Research in Endocrinology, 1979-1981
- Medical School: University of Cincinnati College of Medicine, 1981-1985
- Internship, Residency: Internal Medicine, The Good Samaritan Hospital, Cincinnati, Ohio, 1985-1988
- Fellowship: Gastroenterology, Presbyterian University of Pennsylvania Medical Center, Philadelphia, Pennsylvania, 1988-1990
Certification:
- Board Certified in Internal Medicine, 1988
- Board Certified in Gastroenterology, 1991
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Appointments 513-735-0200
Office Location 2055 Hospital Drive Suite 325 Batavia, Ohio 45103
Additional Location 1275 North High Street Hillsboro, OH 45133
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Ganesh Kakarlapudi, M.D.
Education:
- Undergraduate: Creighton University School of Arts and Sciences - Omaha, Nebraska, 1996-2000
- Medical school: Creighton University School of Medicine- Omaha, Nebraska, 2000-2004
- Internship: University of Cincinnati College of Medicine, University Hospital
- Residency: University of Cincinnati College of Medicine, University Hospital
- Fellowship: University of Cincinnati College of Medicine, University Hospital
Certification:
- State Medical Board of Ohio, 2007
- Board Certified in Internal Medicine, 2007
- Board Certified in Gastroenterology, 2010
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Appointments 513-231-9010
Office Location 7661 Beechmont Ave Suite 120 Cincinnati, Ohio 45255
Additional Locations 2133 Auburn Avenue Suite 722 Cincinnati, Ohio 45219
1955 Dixie Highway Suite K Fort Wright, Kentucky 41011
4805 Montgomery Rd Suite 160 Cincinnati, Ohio 45212
Prep Information Colonoscopy Prep Instructions
Supplemental Prep Instructions
Directions to Procedure Anderson Endoscopy Center Christ Hospital Endo Unit
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Gregory Lam, D.O.
Education:
- Bachelor of Science: Gonzaga University, Spokane, Washington 1993-1996
- Medical School: Doctor of Osteopathic Medicine, Midwestern University, Glendale, Arizona 1999-2003
- Internship, Residency: internal Medicine, Loyola University Medical Center, Maywood, Illinois 2003-2006
- Fellowship: Gastroenterology, Loyola University Medical Center, Maywood, Illinois, 2008- 2011
- Advanced Fellowship: Advanced Endoscopy, SUNY Downstate Medical Center, Brooklyn, NY, 2011-2012
Certification:
- ABIM Board Certified Internal Medicine
- ABIM Board Certified Gastroenterology
Experience:
- Private Practice, Cincinnati GI, 2018-Present
- Lead Physician 2016-2018, St Elizabeth Physicians 2012-2018
- Hospitalist, Instructor of Medicine, University of Chicago 2006-2008
- Research Technologist, Retroviral Gene Therapy, University of Washington 1996-1998
Office Location:
- Anderson Office
- Christ Hospital Office
- Fort Wright Office
- Norwood Office
Hospital & Endoscopy Center Affiliations:
- The Christ Hospital
- Mercy Anderson Hospital
- Mercy Clermont Hospital
- Adams County Regional Medical Center
- Anderson Endoscopy Center
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Appointments 513-721-5300
Office Location Linden Pointe 4805 Montgomery Road Suite 160 Cincinnati, Ohio 45212
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Harold V. Loewenstine, M.D.
Areas of Expertise - Inflammatory bowel disease, Cirrhosis, Hepatitis, Colitis, Chronic Reflux Disease, Colon Cancer, Diarrhea and Constipation
Education
- Undergraduate: University of Cincinnati, 1981
- Medical school: Medical College of Ohio, 1987
- Residency: Miami Valley Hospital; Affiliate of Wright State University, 1987 - 1990
- Fellowship: University of Mississippi; Division of Digestive Diseases, 1990 - 1992
Certification
- State Medical Board of Ohio, 1988
- Board Certified in Internal Medicine, 1990
- Board Certified in Gastroenterology,1993
- Recertification American Board of Internal Medicine-Gastroenterology, 2003-2013
- Recertification American Board of Internal Medicine-Gastroenterology, 2013-2023
Experience
- Private practice, Cincinnati GI, 1992 to present
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Appointments 513-231-9010
Office Location 7661 Beechmont Suite 120 Cincinnati, Ohio 45255
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Marvin J. Lopez, M.D.
Education
- Undergraduate: Indiana University, Bloomington, IN, 1988-1992
- Medical School: The Ohio State University College of Medicine, Columbus, Ohio, 1992-1996
- Internship, Residency: Internal Medicine, New England Medical Center, Tufts University, 1996-1999
- Fellowship: Gastroenterology, New England Medical Center, Tufts University, 1999-2002
Certification
- Board Certified in Internal Medicine, 1999
- Board Certified in Gastroenterology, 2002-2012
- Board Recertification in Gastroenterology, 2012-2022
Experience
- Private Practice, Cincinnati GI, 2002-Present
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Appointments 513-233-4100
Office Location 3310 Mercy Health Blvd Suite 230 Cincinnati, OH 45211
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Mark Manegold, M.D.
Areas of Expertise - Colon cancer screening, Colonic polyps, Gastrointestinal bleeding, Esophageal disorders, Gastroesophageal reflux disease, Irritable bowel syndrome, Inflammatory bowel disease
Education
- The University of Cincinnati, Cincinnati, Ohio, 1979, B.S., cum laude
- Medical School: The Ohio State University, Columbus, Ohio, 1982
- Internship, Residency: Internal Medicine, The Good Samaritan Hospital, Cincinnati, Ohio, 1982-1985
- Chief Medical Resident, The Good Samaritan Hospital, Cincinnati, Ohio, 1985-1986
- Fellowship: Gastroenterology, The Cleveland Clinic Foundation, Cleveland, Ohio, 1987-1989
Certification
- Board Certified in Internal Medicine
- Board Certified in Gastroenterology
Experience
- Staff Physician, Physician Care, Cincinnati, Ohio, 1986-1987
- Private Practice, Cincinnati GI, 1989-Present
- Medical Director, Mercy West Hospital Endoscopy Center, Current
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Appointments 513-231-9010
Office Location 7661 Beechmont Ave Suite 120 Cincinnati, Ohio 45255
Additional Location Linden Pointe 4805 Montgomery Road Suite 160 Cincinnati, Ohio 45212
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Said I. Nabhan, M.D.
Listening: “A doctor can learn a lot and be useful by simply listening to the patient.”
Areas of Expertise - Colon cancer screening, Endoscopy, Colonoscopy, ERCP, Ulcers, Abdominal pain, Constipation, Diarrhea, Bleeding, Irritable bowel syndrome, Acid reflux, Pancreas, Liver, and Hepatitis C.
Education
- Undergraduate: American University of Beirut: 1984-1987
- Medical school: American University of Beirut: 1987-1991
- Internship: University of Tennessee College of Medicine: 1991-1992
- Residency: University of Tennessee College of Medicine: 1992-1994
- Fellowship: Gastroenterology, University of Tennessee College of Medicine: 1994-1996
- Fellowship: Hepatology, University of Tennessee College of Medicine: 1996-1997
Certification
- State Medical Board of Ohio: 2016
- Board Certified in Internal Medicine: 1994
- Board Certified in Gastroenterology: 1997
Experience
- Private Practice: Cincinnati GI: 2016
- Private Practice: Digestive Associates, PC: 1997-2016
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Appointments 513-735-0200
Office Location 2055 Hospital Drive Suite 325 Batavia, Ohio 45103
Additional Location 1275 North High Street Hillsboro, OH 45133
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Annmarie Sagraves, PA-C
Areas of expertise - Preventative care – combining environmental factors, genetic predisposition, disease agents, and lifestyle choices to prevent disease occurrence and progression.
Education:
- Graduate: University of the Cumberlands, 2017-2019, Master of Science in Physician Assistant Studies
- Undergraduate: University of the Cumberlands, 2013-2016, Bachelor of Arts
Certification:
- NCCPA Board Certified Physician Assistant
- Advanced Cardiac Life Support (ACLS)
- Basic Life Support (BLS)
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Appointments Dr. Ionna Patients 513-231-9010
Dr. Hess Patients 513-233-4100
Office Location 7661 Beechmont Suite 120 Cincinnati, Ohio 45255
Additional Location 3310 Mercy Health Blvd Suite 230 Cincinnati, OH 45211
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Shannon Horvath, N.P.
Areas of expertise - Gastroesophageal Reflux Disease, Barrett’s Esophagus, Irritable Bowel Syndrome, Inflammatory Bowel Disease, colon polyps, colon cancer screening, and abdominal pain.
Education:
- Graduate: The University of Cincinnati 2012-2014 Master of Science in Nursing
- Undergraduate: The College of Mount Saint Joseph 1998-2000 Bachelor of Science in Nursing
- Associate: Cincinnati State Bethesda School of Nursing 1994-1997 Associate of Applied Science in Nursing
Certification:
- Certified Gastroenterology Registered Nurse
- Advanced Cardiac Life Support
- Basic Life Support
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Appointments 513-231-9010
Office Location 7661 Beechmont Suite 120 Cincinnati, Ohio 45255
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Hanna Kremer, N.P.
Areas of expertise - Preventative Care and Patient Education.
Education:
- Graduate: Indiana State University; Master of Science in Nursing 2016-2018
- Undergraduate: University of Cincinnati; Bachelor of Science in Nursing 2008-2012
- Associate: Cincinnati State Bethesda School of Nursing 1994-1997 Associate of Applied Science in Nursing
Certification:
- Board Certified Family Nurse Practitioner -AANP
- Advanced Cardiac Life Support Certification
- Basic Life Support Certification
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Physician Emeritus
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Arcot Bhaskar, M.D.
Education:
- Medical school: Madras Medical College – Madras, India 1967-1974
- Internship: Government General Hospital – India, 1973
- Residency: Bronx Lebanon Hospital – New York, 1978-1980
- Chief Medical Resident: Bronx Lebanon Hospital – New York, 1980-1981
- Fellowship: Gastroenterology Bronx Lebanon Hospital – New York, 1981-1983
Certification:
- State Medical Board of Ohio, 1983
- Board Certified in Internal Medicine, 1980
- Board Certified in Gastroenterology,1985
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Physician Emeritus
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Robert E. Krone, Jr., M.D.
Education:
- Undergraduate: Rensselaer Polytechnic Institute, Troy, New York, 1975, B.S., cum laude
- Medical School: University of Cincinnati, 1979
- Internship, Residency: Internal Medicine, The Christ Hospital, Cincinnati, Ohio 1979-1982
- Fellowship: Gastroenterology
Certification:
- Board Certified in Internal Medicine, 1982
- Board Certified in Gastroenterology, 1985
Experience:
- Private Practice, Cincinnati GI, 1984-Present
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