Book Appointment
I see patients at the following locations:
Clifton Park
Education
Bachelor’s Degree – Brandeis University
Medical Degree – Icahn School of Medicine at Mount Sinai
Internship – Duke University Hospital
Residency – Duke University Hospital
Fellowship – Duke University Hospital
Board Certifications – Gastroenterology, Internal Medicine
Specialties & Main Areas of Interest
- Swallowing disorders
- Eosinophilic esophagitis (EoE)
- Gastroesophageal reflux disease (GERD)
- Gastroparesis
- Irritable bowel syndrome (IBS)
- Anorectal disorders.
Hospital Affiliations
St. Peter’s Hospital
Albany Medical Center
Ellis Hospital
Samaritan Hospital – Albany Memorial Campus
Southwestern Vermont Medical Center
St. Peter’s Surgical & Endoscopy Center
Other Appointments
Dr. Posner is a member of the American Gastroenterological Association, American Neurogastroenterology and Motility Society, and American Society for Gastrointestinal Endoscopy.
Fun Facts
In his free time, Dr. Posner enjoys spending time with his family, hiking, cooking, reading science fiction, playing piano, and golf.
Conditions & Diseases Treated
- Abdominal Pain
- Achalasia
- Acid Reflux
- Anorectal Disease
- Bacteria and Foodborne Illness
- Barrett's Esophagus
- Bile Duct Blockages and Stones
- Celiac Disease
- Chronic Diarrhea
- Clostridioides Difficile
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colorectal Cancer
- Constipation
- Crohn's and Ulcerative Colitis Management
- Crohn’s and Ulcerative Colitis
- 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 Syndromes
- GERD
- H. Pylori and Peptic Ulcer
- 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
- Capsule Endoscopy
- Colonoscopy
- Endoscopic Mucosal Resection
- Endoscopic Submucosal Dissection
- Endoscopic Ultrasound (EUS)
- ERCP
- Esophageal Manometry
- Flexible Sigmoidoscopy
- Liver Biopsy
- Percutaneous Endoscopic Gastrostomy (PEG)
- Peroral Endoscopic Myotomy
- Upper GI Endoscopy (EGD)
- Upper GI Endoscopy /w Bravo
