Dr. Timothy Johnson Gastroenterology/Hepatology Services

Gastroenterology Procedures and Consultation


Upper Endoscopy and Colonoscopy

Our facility meets all standards and requirements set by New York State and accredited by AAASF.


Conditions We Treat and Diagnosis

Dr. Johnson performs colon cancer screenings, treats digestive disorders that include heartburn, GERD/acid reflux, eosinophilic esophagitis, food allergies, irritable bowel syndrome, inflammatory bowel disease, helicobacter pylori, vitamin deficiencies, parasitic infections, and celiac disease, as well a range of liver diseases.

Dr. Timothy Johnson Research and Publications

Clinical Gastroenterology and Hepatology - The presence of HLA-DQ8 does not correlate with severity of celiac disease: Comparison of New York and Parisian cohorts

American Journal of Gastroenterology - Prevalence of Celiac Disease in Patient with Hepatitis C Virus in Manhattan

American Journal of Gastroenterology
- Prospective pilot study to determine the use of real-time video capsule endoscopy in risk stratification of patients that present with upper gastrointestinal bleeding

Gastroenterology - Correlation Between Lipid Profile and Outcome of Hepatitis C Treatment

Gastroenterology - The Effectiveness of Pegylated-Interferon and Ribavirin Combination Therapy for Chronic Hepatitis C in an Urban Clinic Setting Compared to Pivotal Clinical Trials

American Journal of Gastroenterology - Trends in Biopsy and Treatment Rates in Patients with Chronic Genotype 2 & 3 Hepatitis C Infection Over a Six-Year Period