Our Providers

Physicians

Edward H. Schultheiss, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Schultheiss earned his Medical Degree from the University of Illinois. His Internal Medicine training was at Oregon Health & Sciences University. He completed his Gastroenterology fellowship at the University of Utah in 1989.

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Robert J. Ponec, M.D., F.A.C.P., F.A.C.G.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Ponec graduated from Stanford University and earned his Medical Degree at the University of Southern California. His Internal Medicine training was at UCLA. He completed his Gastroenterology fellowship at the University of Washington in Seattle in 1997.

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Lawrence K. Gates, Jr., M.D., F.A.C.P., F.A.C.G.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Gates graduated from Duke University School of Medicine, where he completed his Internal Medicine internship and residency. He completed a Gastroenterology fellowship at the Mayo Clinic and was an Associate Professor at the University of Kentucky.

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Patricia C. Kao, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Kao graduated from Virginia Commonwealth University and earned her medical degree from the University of Virginia. She completed her Internal Medicine residency training and Gastroenterology fellowship at the University of Vermont.

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Katherine Hoda, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Hoda was born and raised in the Willamette Valley, completed her undergraduate studies at Oregon State University, and earned her medical degree at Oregon Health & Sciences University. Following medical school she spent six years at Oregon Health & Science University completing an Internal Medicine residency followed by a Gastroenterology fellowship. Dr. Hoda’s clinical and research interests include quality outcomes in colonoscopy, diseases of the colon including colorectal cancer and inflammatory bowel disease, and pancreatic and biliary disease.

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Richard Brandes, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

A native of Oregon, Dr. Brandes earned a Bachelor of Science in English at Willamette University and earned his Medical Degree at Oregon Health & Sciences University. He spent six years in Albuquerque, New Mexico, where he completed his Internal Medicine residency as well as a Gastroenterology fellowship. He is Board Certified in Internal Medicine and Gastroenterology. Dr. Brandes has particular interest in liver disease, colorectal cancer screening, inflammatory bowel disease and emerging endoscopic technologies.

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Nabil Choueiri, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

Dr. Choueiri graduated from the American University in Beirut. His internal medicine training and gastroenterology fellowship were completed at Saint Louis University…

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Falguny Bhavan, M.D.

Board Certified Internal Medicine, Board Certified Gastroenterology

 

 

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Physician Assistants

Daniel C. Butler, PA-C, M.S., M.P.A.S.

National Certification as a Physician Assistant

Daniel C. Butler PA-C is a graduate of University of Iowa College of Medicine Physician Assistant Program, where he completed both his physician assistant certification and a Master of Physician Assistant Studies degree. Prior to admission to the Physician Assistant program, Mr. Butler received a Master of Science degree from Colorado State University in Human Anatomy and Physiology. Mr. Butler had seven years’ experience in primary care medicine prior to joining SGC.

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Amy Ditzel, PA-C

National Certification as a Physician Assistant

Amy Ditzel, PA-C is a graduate of the Seton Hall University.

 

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Mindy Glivinski, PA-C, M.P.A.S.

National Certification as a Physician Assistant

Mindy Glivinski, PA-C is a graduate of the Oregon Health & Science University School of Medicine Physician Assistant Program, where she earned her master’s degree in Physician Assistant Studies. Ms. Glivinski had six years of experience in primary care medicine prior to joining SGC.

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Michael Slabaugh, PA-C

National Certification as a Physician Assistant

Michael Slabaugh, PA-C is a graduate of Rosalind Franklin University of Medicine and Science.

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Dietician

Denise Cedar, RD, LD, CDE

Registered Dietitian, Certified Diabetes Educator

Denise is a Registered Dietitian and Certified Diabetes Educator with 23 years’ experience in Medical Nutrition Therapy. She earned a Bachelor of Science in Dietetics at California State University, Fresno, in 1988; completed her dietetic internship at Community Hospitals of Central California in 1988-1989; and completed additional diabetes training at the International Diabetes Center in 1989. She has specialized in individualized nutrition therapy for people with digestive disorders since 1992. Her personal mission is to bring inspiration, compassion and empowerment to those on the path to optimal health.

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