Digestive Disease Center of NJ
810 Ryders Ln East Brunswick, NJ 08816
33 Clyde Rd Suite 102, Somerset, NJ 08873
Education
Bachelor’s Degree – State University of New York in Albany
Medical Degree – University of Guadalajara
Internship – Albert Einstein Medical Center
Residency – Albert Einstein Medical Center
Fellowship – University of Pittsburgh
Board Certification – Gastroenterology and Internal Medicine
Hospital Affiliations
- Robert Wood Johnson University Hospital
- Saint Peter’s University Hospital
Other Appointments
- Clinical Associate Professor of Medicine, Rutgers University School of Medicine
- Prior assistant professor of medicine, University of Pittsburgh
- Member of several medical societies and holds fellowship positions in the American College of Physicians, American College of Gastroenterology, and the American Gastroenterology Association
Research
- Multiple publications in the field of constipation/anorectal motility & Hepatology
Fun Facts
Dr. Merkel’s personal interests include physical fitness, trying to keep up with his busy wife and two adult children, and pursuing his passion for collecting Superman memorabilia.
Conditions Treated
- Hepatitis A
- Ulcerative Colitis
- Stomach Ulcers
- Laryngopharyngeal Reflux
- Silent Reflux
- Primary Biliary Cirrhosis
- Peptic Ulcer Disease (PUD)
- Liver Disease
- Lactose Intolerance
- H. Pylori and Peptic Ulcer
- Hepatocellular Carcinoma
- Hemochromatosis
- Acid Reflux
- Gastritis
- Esophagitis and Stricture
- Crohn’s and Ulcerative Colitis
- Colorectal Cancer
- Difficulty Swallowing (Dysphagia)
- Bacteria and Foodborne Illness
- Achalasia
- Rectal Cancer
- Nonalcoholic Steatohepatitis (NASH)
- Proctitis
- Gastric Cancer
- Gas
- Anorectal Disease
- Gastrointestinal Malignancies
- Crohn's and Ulcerative Colitis Management
- Colon Disease
- Chronic Diarrhea
- High Risk Colon Cancer Screening
- Hepatitis B
- Genetic Colon Cancer Syndromes
- Gallbladder Disease
- Liver Cirrhosis
- Hernias (Abdominal, Groin, and Hiatal)
- Colon Polyps
- Iron Deficiency Anemia
- Abdominal Pain
- Barrett's Esophagus
- Celiac Disease
- Clostridioides Difficile
- Colon Cancer
- Constipation
- Diarrhea
- Diverticulosis/Diverticulitis
- Esophageal Cancer
- Reflux Esophagitis/Stricture
- Fatty Liver
- Fecal Incontinence
- Gallstones
- Gastroparesis
- GERD
- Heartburn
- Helicobacter Pylori/Peptic Ulcer
- Hemorrhoids
- Hepatitis C
- Inflammatory Bowel Disease, Including Crohn’s Disease and Ulcerative Colitis
- Irritable Bowel Syndrome
- Jaundice
- Nausea and Vomiting
- Obesity
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Rectal Bleeding
- Swallowing Difficulty
Procedures Performed
- Upper GI Endoscopy (EGD)
- Polypectomy
- Push Enteroscopy
- Diagnostic and Therapeutic Endoscopy
- Diagnostic and Therapeutic Colonoscopy
- Percutaneous Endoscopic Jejunostomy (PEJ)
- Variceal Banding
- Remicade Infusion
- Urea Breath Test (UBT)
- Esophageal Dilation/Testing
- Flexible Sigmoidoscopy and IRC
- Upper Endoscopy
- Percutaneous Endoscopic Gastrostomy (PEG)
- Flexible Sigmoidoscopy
- Colonoscopy
- Capsule Endoscopy
- Bravo pH Study
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