Melissa Nurrenbern, FNP
Dr. Airel comes to us with an extensive and distinguished military background, after completing his MD at Pennsylvania State College of Medicine and Graduate Medical Education Gastroenterology Fellowship at San Antonio Military Medical Center.
Dr. Airel served in the United States Air Force in numerous capacities but most notably as a Flight Surgeon, Deputy Chief of Medical Staff, acting Chief of Aerospace Medicine, and staff Gastroenterologist.
He is a member of the American Board of Internal Medicine – Gastroenterology. Among other military honors, Dr. Airel received the Meritorious Service Medal, Air Force Commendation Medal, and the Navy & Marine Corps Commendation Medal twice.
Dr. Boroda completed his Gastroenterology fellowship at Albert Einstein College of Medicine – Montefiore Medical Center in 2020. He is board certified in Gastroenterology by the American Board of Internal Medicine.
Dr. Boroda treats a wide range of gastroenterological and liver diseases. He performs several procedures including upper endoscopy, colonoscopy, capsule endoscopy, esophageal manometry, and ambulatory pH studies.
Dr. Boroda is a member of the American College of Gastroenterology.
Dr. Potteiger received his graduate degree from Philadelphia College of Osteopathic
Medicine in 1998, and has completed his internal medicine residency at Geisinger
Medical Center. He was Chief Medical Resident for internal medicine at Geisinger
Medical Center. Dr. Potteiger has completed his fellowship in gastroenterology and
nutrition at Geisinger Medical Center. He has been with Digestive Care Center since
He is certified by the American Board of Internal Medicine – Gastroenterology. In
addition to providing consultative gastroenterology care, he specializes in colonoscopy,
upper endoscopy and nutrition/weight management.
Dr. Potteiger is involved in many professional societies include: American College of
Gastroenterology, American College of Physicians and American Society for
Master of Science in Nursing
University of Southern Indiana
CPR Healthcare Provider Certified
Clinical teaching Partner
Nursing Excellence Award – Rising Star Recipient, St. Mary’s Medical Center – 2016
Katie Luigs is a Board Certified Acute Care Nurse Practitioner at Digestive Care Center. She is responsible for diagnosing and treating a wide variety of digestive diseases by using lab tests, imaging and procedures to identify the source of the problem. Then she works with the patient to determine the best treatment plan. Whether a patient has a life-threatening illness or a problem that can easily be treated, Katie’s end goal is always the same – do whatever she can to help her patients feel better.
Katie grew up in Washington, and now lives in Evansville. In her spare time, she enjoys reading, traveling and trying out new restaurants.