Experienced in Cholecystitis
Experienced in Cholecystitis
4140 Oregon Pike, 
Ephrata, PA 

Overview

John D. Horwhat, MD, specializes in gastroenterology. He is affiliated with UPMC Lititz. Dr. Horwhat completed his fellowships at Duke University Medical Center and Walter Reed National Military Medical Center, residency at Madigan Army Medical Center and medical degree at Temple University.

Dr. Horwhat is rated as an Experienced provider by MediFind in the treatment of Cholecystitis. His top areas of expertise are Bile Duct Obstruction, Acute Pancreatitis, Barrett Esophagus, Endoscopy, and Gastrectomy.

His clinical research consists of co-authoring 11 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Graduate Institution
Temple University
Residency
Madigan Army Medical Center
Specialties
Gastroenterology
Licenses
Internal Medicine in PA
Board Certifications
Gastroenterology, 2000
Fellowships
Walter Reed Military Medical Center
Hospital Affiliations
Lancaster General Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Avalon Health Care
  • MEDICARE PDP
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Gateway Health Plan
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • OTHER MEDICARE PART D
Geisinger
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Oscar
  • EPO
  • HMO
  • PPO
PA Health and Wellness
  • HMO
  • MANAGED MEDICAID PLAN
Trustmark
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 15 Less Insurance Carriers -

Locations

US Digestive Health - Ephrata
4140 Oregon Pike, Ephrata, PA 17522
Other Locations
US Digestive Health - Harrisburg Pike
2112 Harrisburg Pike, Suite 202, Lancaster, PA 17601

Additional Areas of Focus

Dr. Horwhat has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Peptic Ulcer
Lymphocytic Colitis
Intestinal Pseudo-Obstruction
Esophagitis
Esophageal Varices
Non-Alcoholic Fatty Liver Disease
Collagenous Colitis
Eosinophilic Esophagitis
Gastroparesis
Ulcerative Colitis
Jaundice
Gallstones
Lactose Intolerance
Chronic Pancreatitis
Short Bowel Syndrome
Bowel Incontinence
Lynch Syndrome
Diarrhea
Acute Pancreatitis
Nonalcoholic Steatohepatitis (NASH)
Cirrhosis
Achalasia
View 12 Less Areas of Focus-

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


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Gastroenterologist Mouen Khashab specializes in therapeutic endoscopy, and he oversees this group of practitioners across the Johns Hopkins enterprise. Nationally and internationally known in the field of interventional endoscopy, Dr. Khashab has contributed immensely to the field’s advancement as a minimally invasive means to treat gastrointestinal and pancreaticobiliary disorders. Dr. Khashab earned his medical degree from the American University of Beirut Faculty of Medicine, and subsequently completed a residency in internal medicine and a fellowship in gastroenterology at Indiana University. He then completed a two-year fellowship at The Johns Hopkins Hospital before joining the faculty in 2011. A busy researcher, Dr. Khashab has published more than 600 papers in peer-reviewed journals. In 2013, he described the procedure called gastric peroral endoscopic myotomy (known as G-POEM) and was able to disseminate and teach it all over the world. Other procedures that he expanded include peroral endoscopic myotomy (POEM), peroral endoscopic myotomy with fundoplication (POEM-F), Zenker’s peroral endoscopic myotomy (Z-POEM) and full thickness resection. In 2022, he received the Master Endoscopist Award from the American Society for Gastrointestinal Endoscopy (ASGE) for his numerous contributions to the field. His procedural expertise includes endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), interventional EUS, submucosal endoscopy, POEM/achalasia, endoscopic mucosal resection, endoscopic submucosal dissection, luminal stenting, large polyp resection and Barrett’s therapy, among others. Dr. Khashab is involved with multiple gastrointestinal societies and has served on many committees, including the ASGE Standards of Practice Committee, which is in charge of formulating guidelines for the practice of endoscopy. He has also served as an associate editor for the journal Endoscopy, a premier journal in the field. Khashab is a highly sought-after speaker at national and international conferences, and he has participated in multiple live endoscopy conferences. Outside of academic medicine, Dr. Khashab is an entrepreneur. His major interest is in new technology and medical devices, and his goal is to disrupt the field by introducing technology that makes endoscopic procedures safer, easier, efficient and more scalable. Dr. Khashab is rated as an Elite provider by MediFind in the treatment of Cholecystitis. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.

Distinguished in Cholecystitis
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Distinguished in Cholecystitis
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 (55.9 miles away)
Languages Spoken:
English

Parit Mekaroonkamol is a Gastroenterologist in Wyncote, Pennsylvania. Dr. Mekaroonkamol is rated as an Elite provider by MediFind in the treatment of Cholecystitis. His top areas of expertise are Pancreas Divisum, Gastroparesis, Cholecystitis, Gastrectomy, and Endoscopy.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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