Thomas J McDonald, MD
Guthrie Provider

- Gastroenterology and Hepatology
- Guthrie Corning Hospital
- Guthrie Robert Packer Hospital
- Guthrie Troy Community Hospital
- Hepatobiliary Cancer
Appointments & Contact
Accepting New Patients
Offers Telemedicine Visits
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Telemedicine video visits make it easier to find care at a time and location that is convenient for you. Telemedicine appointments are available for both new patient visits and follow-ups.
For New Patients
Locations
- Also Offers Telemedicine Information Icon866-488-4743Telemedicine video visits make it easier to find care at a time and location that is convenient for you. Telemedicine appointments are available for both new patient visits and follow-ups.
Education
- Robert Packer Hospital, Sayre, Pa.
- American Board of Internal Medicine
- Hahnemann University, Philadelphia, Pa.
- Robert Packer Hospital, Sayre, Pa.
- Robert Packer Hospital, Sayre, Pa.
- University of Miami, Miami, Fla.
News & Video


Clinical Trials
- A Phase 2 Randomized, Double-Blind, Placebo-Controlled Study of the Safety and Efficacy of BMS-986165 in Subjects with Moderate-to-Severe Crohn's Disease
- AbbVie M14-234, A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of ABT-494 for Induction and Maintenance Therapy in Subjects with Moderately to Severely Active Ulcerative Colitis
- CeD-LA-3001: A Phase 3, Randomized, Double-Blind, Placebo Controlled Study to Evaluate the Efficacy and Safety of Larazotide for Relief of Persistent Symptoms in Patients with Celiac Disease on a Gluten Free Diet
- CHS1221: A Three-Arm, Randomized, Placebo-Controlled, Double-Blind Phase 3 Study to Evaluate the Safety and Efficacy of Once-Daily and Twice-Daily Dosing of a Novel Hydrocortisone Acetate 90 mg Suppository Formulation Administered with the Sephure®
- ECOSPOR IV: AN OPEN-LABEL EXTENSION OF STUDY SERES-012 EVALUATING SER-109 IN ADULT SUBJECTS WITH RECURRENT CLOSTRIDIUM DIFFICILE INFECTION (RCDI)
- Limited access protocol for the use of oral cisapride in the treatment of refractory gastroesophageal reflux disease and other gastrointestinal motility disorders. CIS-USA-154
- M14-533, A Phase 3 Multicenter, Long-Term Extension Study to Evaluate the Safety and Efficacy of Upadacitinib (ABT-494) in Subjects with Ulcerative Colitis
- M20-259: A Phase 3, Multicenter, Randomized, Efficacy Assessor-Blinded Study of Risankizumab Compared to Ustekinumab for the Treatment of Adult Subjects With Moderate to Severe Crohn's Disease Who Have Failed Anti-TNF therapy
- Protocol SMT19969/C005 (Ri-CoDIFy 2): A Phase 3, randomized, double-blind, active controlled study to compare the efficacy and safety of ridinilazole (200 mg, bid) for 10 days with vancomycin (125 mg, qid) for 10 days in the treatment of Clostridium diffi
Patient Comments