Pathology Team

Mara Fernández-Santiago, MD
Olentangy Office
3400 Olentangy River Road
Columbus, Ohio 43202
Dr. Mara Fernández-Santiago joined Ohio Gastroenterology Group, Inc. in 2022. She earned her medical degree from the University of Puerto Rico School of Medicine. She then completed her residency at the University of Puerto Rico. Dr. Fernández-Santiago then completed her fellowship at the Medical College of Wisconsin.
Professional Training:
- Medical College of Wisconsin, Gastrointestinal, Liver & Pancreatic Pathology Fellowship, 2021 – 2022
- University of Puerto Rico School of Medicine, Residency, 2011 – 2014
Education:
- University of Puerto Rico School of Medicine – MD, 2011
- Universidad Del Sagrado Corazon – BS, 2004
Board Certification:
- American Board of Pathology-Anatomic, 2017 – present

Megan Lockyer, DO
Olentangy Office
3400 Olentangy River Road
Columbus, Ohio 43202
Dr. Megan Lockyer joined Ohio Gastroenterology Group, Inc. in 2021. She earned her medical degree from Midwestern University. She then completed her residency at the Baylor College of Medicine. Dr. Lockyer then completed her fellowship at Oregon Health and Science University. She also completed an additional fellowship at AmeriPath Cleveland.
Professional Training:
- Dr. Robert E. Petras Fellowship, AmeriPath Cleveland, Gastrointestinal Pathology Fellowship, 2016 – 2017
- Oregon Health & Science University, Pathology & Cytopathology Fellowship, 2015 – 2016
- Baylor College of Medicine, Pathology, Anatomic Pathology & Clinical Pathology Residency, 2011 – 2015
Education:
- Arizona College of Osteopathic Medicine – Midwestern University – DO, 2011
- Texas Christian University – BS, Cum Laude, 2006
Board Certifications:
- American Board of Pathology/Cytopathology, 2016 – present
- American Board of Pathology/Anatomic & Clinical, 2015 – present

Clint Stanfill, MD
Olentangy Office
3400 Olentangy River Road
Columbus, Ohio 43202
Dr. Clint Stanfill joined Ohio Gastroenterology Group, Inc. in 2021. He completed his medical degree and residency at East Tennessee State University. Dr. Stanfill then completed his fellowship at AmeriPath Institute of Gastrointestinal Pathology and Digestive Disease.
Professional Training:
- Gastrointestinal Surgical Pathology Fellowship, 2017 – 2018
- East Tennessee State University, Quillen College of Medicine, Pathology, Anatomic Pathology & Clinical Pathology Residency, 2017
Education:
- East Tennessee State University, Quillen College of Medicine – MD, 2013
- Freed – Hardeman University – BS, 2008
Board Certification:
- American Board of Pathology/Anatomic & Clinical, 2017 – present
PATIENTS

Phone: 614-754-5500
Scheduling: 614-754-5600
Billing: 614-457-4220
Medical Records: 614-754-5455
Hours of Operation: 8:00am – 4:30pm