Nurse Practitioners and Physician Assistants

Kori N. Devoll, CNP

Kori N. Devoll, CNP

Certified Nurse Practitioner

Kori Devoll joined Ohio Gastroenterology Group in July 2013 after earning a Master of Science in Nursing degree from Otterbein University. She is also board certified as a Family Nurse Practitioner by the American Academy of Nurse Practitioners. Kori currently assists with inpatients at Riverside Methodist Hospital as well as seeing patients in collaboration with the physicians at our North Office location.

Amanda R. Gayetsky, PA-C

Amanda R. Gayetsky, PA-C

Physician Assistant

Amanda Gayetsky joined Ohio Gastroenterology Group in April 2014. She graduated from Westminster College in 2011 with a Bachelor of Science in Biology. She then went on to obtain a Master of Medical Science in Physician Assistant Studies from Lincoln Memorial University – Debusk College of Osteopathic Medicine in 2013. Amanda is certified by the National Commission on Certification of Physician Assistants (NCCPA) and is a member of the American Academy of Physician Assistants. She currently assists with inpatients at Riverside Methodist Hospital as well as seeing patients in collaboration with the physicians at our Dublin and Westerville offices.

Erica M. Gilson, PA-C

Erica M. Gilson, PA-C

Physician Assistant

Erica Gilson joined Ohio Gastroenterology Group in April 2014. She graduated from John Carroll University in 2005 with a Bachelor of Science in Chemistry. She then went on to obtain a Master of Health Science in Physician Assistant Studies from South College in 2013. Erica is certified by the National Commission on Certification of Physician Assistants (NCCPA) and is a member of the American Academy of Physician Assistants. She currently assists with inpatients at Mount Carmel West Hospital.

Barbara Looser, CNP

Barbara Looser, CNP

Certified Nurse Practitioner

Barbara Looser has been with Ohio Gastroenterology Group since 2005. She graduated Summa Cum Laude from The Ohio State University in 1999 with a Bachelor of Science in nursing. Her nursing career began in critical care in the Medical Intensive Care Unit at OSU Medical Center. She then went on to obtain a Master of Science with her studies in Adult Health & Illness at The Ohio State University in 2004. She is certified by the American Academy of Nurse Practitioners and is a member of the Ohio Assoication of Advance Practice Nurses. Barb currently assists with inpatients at Mount Carmel East.

Erin Weyandt, CNP

Erin Weyandt, CNP

Certified Nurse Practitioner

Erin Weyandt joined Ohio Gastroenterology Group in November 2015 after earning a Master of Science in Nursing degree from Mount Carmel College of Nursing. She is board certified as a Family Nurse Practitioner by the American Nurses Credentialing Center. Erin provides patient services in collaboration with the physicians at our Dublin and Westerville Offices. She also assists with inpatient consults at Riverside Methodist and Dublin Methodist Hospitals.

Shannon Grime, MSN, CNP, CGRN

Shannon Grime, MSN, CNP, CGRN

Certified Nurse Practitioner

Shannon A. Grime has been a part of the Ohio Gastroenterology team since November 2008. She earned her Master of Science in Nursing degree from the University of Cincinnati in August 2015. She is board certified as an Adult-Gerontology Primary Care Nurse Practitioner by the American Academy of Nurse Practitioners. Shannon also earned her certification as a Gastroenterology Registered Nurse in October 2017 from the American Board of Certification for Gastroenterology Nurses. She provides patient services in collaboration with the Ohio Gastroenterology Group physicians at Riverside Methodist Hospital, Mount Carmel East Hospital, and Mount Carmel St. Ann’s Hospitals.

Tyler Weaver, MSN, CNP

Tyler Weaver, MSN, CNP

Certified Nurse Practitioner

Tyler Weaver has been a part of the Ohio Gastroenterology team since September 2014. He earned his Master of Science in Nursing degree from the University of Cincinnati in December 2017. He is board certified as an Adult-Gerontology Nurse Practitioner by the American Academy of Nurse Practitioners. Tyler provides patient services in collaboration with the Ohio Gastroenterology Group physicians at Riverside Methodist Hospital, Mount Carmel East Hospital, and Mount Carmel St. Ann’s Hospitals.