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 & Diseases Treated
- Abdominal Pain
- Achalasia
- Acid Reflux
- Anorectal Disease
- Bacteria and Foodborne Illness
- Barrett's Esophagus
- Celiac Disease
- Chronic Diarrhea
- Clostridium Difficile
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colorectal Cancer
- Constipation
- Crohn's and Ulcerative Colitis
- Crohn's and Ulcerative Colitis Management
- Diarrhea
- Difficulty Swallowing (Dysphagia)
- Diverticulosis/Diverticulitis
- Esophageal Cancer
- Esophagitis and Stricture
- Fatty Liver
- Fecal Incontinence
- Gallbladder Disease
- Gallstones
- Gas
- Gastric Cancer
- Gastritis
- Gastrointestinal Malignancies
- Gastroparesis
- Genetic Colon Cancer Symptoms
- GERD
- Heartburn
- Helicobacter Pylori/Peptic Ulcer
- Hemochromatosis
- Hemorrhoids
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatocellular Carcinoma
- Hernias (Abdominal, Groin, and Hiatal)
- High-Risk Colon Cancer Screening
- Inflammatory Bowel Disease, Including Crohn’s Disease and Ulcerative Colitis
- Iron Deficiency Anemia
- Irritable Bowel Syndrome
- Jaundice
- Lactose Intolerance
- Laryngopharyngeal Reflux
- Liver Cirrhosis
- Liver Disease
- Nausea and Vomiting
- Nonalcoholic Steatohepatitis (NASH)
- Obesity
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer Disease (PUD)
- Primary Biliary Cirrhosis
- Proctitis
- Rectal Bleeding
- Rectal Cancer
- Reflux Esophagitis/Stricture
- Silent Reflux
- Stomach Ulcers
- Swallowing Difficulty
- Ulcerative Colitis
Procedures Performed
- Bravo pH Study
- Capsule Endoscopy
- Colonoscopy
- Diagnostic and Therapeutic Colonoscopy
- Diagnostic and Therapeutic Endoscopy
- Esophageal Dilation/Testing
- Esophageal High Resolution Manometry and 24 Hr pH Impedance Testing
- Flexible Sigmoidoscopy
- Flexible Sigmoidoscopy and IRC
- Percutaneous Endoscopic Gastronomy (PEG)
- Percutaneous Endoscopic Jejunostomy (PEJ)
- Polypectomy
- Push Enteroscopy
- Remicade Infusion
- Upper Endoscopy
- Upper GI Endoscopy (EGD)
- Urea Breath Test (UBT)
- Variceal Banding