Locations
Doctors Office: This is where you go for
regular check-ups and consultations.
Endoscopy Center: This is where you go
for medical procedures, including
colonoscopies, ultrasounds, studies, and more.
Lancaster
Doctors Office: This is where you go for
regular check-ups and consultations.
Endoscopy Center: This is where you go
for medical procedures, including
colonoscopies, ultrasounds, studies, and more.
Oregon Pike
Doctors Office: This is where you go for
regular check-ups and consultations.
Endoscopy Center: This is where you go
for medical procedures, including
colonoscopies, ultrasounds, studies, and more.
MidAtlantic Endoscopy 1
Doctors Office: This is where you go for
regular check-ups and consultations.
Endoscopy Center: This is where you go
for medical procedures, including
colonoscopies, ultrasounds, studies, and more.
MidAtlantic Endoscopy 2
Meet J. David Horwhat, MD, FACG, FASGE
Dr. Horwhat is a Pennsylvania native who returned to practice in his home state after a 21-year career as an active duty military medical officer. Dr. Horwhat earned his Bachelor of Arts Degree in Biology from Cornell University in 1988 and his Doctor of Medicine Degree from Temple University in 1992. Dr. Horwhat completed his Internal Medicine training at Madigan Army Medical Center, Gastroenterology Fellowship at the Walter Reed Army Medical Center and Advanced Endoscopy Fellowship from Duke University Medical Center.
He has authored or co-authored over 70 publications, book chapters and abstracts and has lectured on numerous areas of advanced endoscopy. During fellowship training, Dr. Horwhat was involved with the development and clinical use of endoscopic spray cryotherapy along with Regional Gi’s Dr. Mark Johnston at the National Naval Medical Center in Bethesda, MD. Dr. Horwhat continues to work with cryotherapy and other ablative treatments for Barrett’s esophagus and palliation of esophageal cancer and is recognized as an expert in this area of gastroenterology.
Dr. Horwhat’s practice focuses on Advanced Therapeutic Endoscopy. He is Board Certified in Gastroenterology and is a Fellow of the American College of Gastroenterology and Fellow of the American Society of Gastrointestinal Endoscopy.
He has privileges at Penn Medicine Lancaster General Hospital, Penn State Health Lancaster Medical Center, and UPMC Lititz.
Dr. Horwhat and his wife have three children.
Medical Education
Temple University
Residency
Madigan Army Medical Center
Fellowship
Walter Reed Army Medical Center
Patient Forms
- RGI Historial Medico Del Paciente ( 688 KB)
- RGI Medical History Form ( 167 KB)
- RGI Release Of Info Form ( 66 KB)
Prep Instructions for Procedures
- Colonoscopy Preparation Instructions, Standard Split Prep ( 133 KB)
- Upper Endoscopy (EGD), Endoscopic Ultrasound (EUS) or ERCP Preparation ( 58 KB)
- Alta Endoscopia (EGD) o ERCP Preparación ( 185 KB)
- Bowel Prep with Prepopik ( 82 KB)
- Capsule Endoscopy Preparation ( 55 KB)
- Flexible Sigmoidoscopy Preparation Instructions ( 52 KB)
- Español Instrucciones de Dosis Dividida—Prepopik Preparación ( 307 KB)
- Miralax/Gatorade Colonoscopy Preparation—2 Day Prep ( 53 KB)
- Español Preparación De Colonoscopia Miralax Dosis Dividida ( 199 KB)
- Español Preparación de Miralax (2) Dos Dias para la Colonoscopia ( 152 KB)
- Español Preparación Para Flexible Sigmoidoscopy ( 182 KB)
- Español Preparación Para Una Capsular Endoscopia ( 271 KB)