Meet Our Team

The Gastric (stomach) and Esophageal Cancer Program has a multidisciplinary team of physicians from multiple specialties to give our patients the most comprehensive treatment available.

Patients with suspected or diagnosed tumors related to these organ systems can often be evaluated by general surgeons, gastroenterologists, medical oncologists, radiation oncologists and interventional radiologists quickly. Each member of this team brings a special expertise. The coordinated efforts allow for a well thought-out and streamlined diagnostic and treatment plan.

Our team includes:

Medical Director

Jason M Wallen, MD, MBA, FACS, FCCP
Assistant Professor of Surgery

Michael A Archer, DO, FACS
Gastric and Esophageal
315 464-1800
Diseases/Specialties/Treatments: Surgery; Thoracic Surgery; Achalasia; Barretts Esophagitis; Bronchiectasis; Bronchopulmonary Dysplasia (BPD); more
Education: Lake Erie College of Osteopathic Medicine

Research Interests:

Quality metrics in lung cancer surgery. Molecular and genetic drivers of thoracic malignancies. Impact of social media on the dissmenation of scientific and surgical peer-reviewed publications

Education Interests:

Surgical education and simulation in surgical training.

Clinical Interests:

Thoracic surgical oncology. Multimodality treatment of locally advanced lung and esophageal cancers. Robotic thoracic surgery.

Associations/Memberships: Society of Thoracic Surgeons (STS), Member; General Thoracic Surgical Club, Member; Association for Academic Surgery, Member; Medical Society of The State of New York, Member; American College of Surgeons (ACS), Fellow

Mashaal Dhir, MD FACS
Gastric and Esophageal
315 464-6295
Diseases/Specialties/Treatments: Surgery; Complex General Surgical Oncology; General Surgery; Endocrine Surgery; Adrenal Gland Cancer; Adrenal Incidentaloma; more

Research Interests:

I am interested in development and implementation of minimally invasive and robotic techniques in the treatment of Liver and Pancreatic diseases.

Application of molecular markers for the treatment of thyroid cancer

Clinical Interests:

Thryoid diseases, Parathyroid diseases, Neuroendocrine tumors, Adrenal tumors

Liver cancer, Pancreatic cancer, Bile duct cancer, Gallbladder cancer, Benign pancreatic and hepatobiliary disorders, Metastatic colorectal cancer, GIST tumors, Stomach cancer

Associations/Memberships: Association for Academic Surgery; International Hepato-Pancreato-Biliary Association (IHPBA); American College of Surgeons (ACS); Americas Hepato-Pancreato-Biliary Association; Society of Surgical Oncology (SSO); American Association of Endocrine Surgeons

Michael D Mix, MD
Gastric and Esophageal
315 464-5276
Diseases/Specialties/Treatments: Radiation Oncology; Brain Cancer; Brain Tumor; Esophageal Cancer; Liver Cancer; Lung Cancer; more
Education: SUNY Upstate Medical University

Rahul Seth, DO
Gastric and Esophageal
315 464-8200
Diseases/Specialties/Treatments: Internal Medicine; Medical Oncology; Hematology; Adrenal Cancer; Advanced Prostate Cancer; All Cancers and Hematological Conditions; more
Education: New York College of Osteopathic Medicine

Anna Shapiro, MD
Gastric and Esophageal
315 464-5276
Diseases/Specialties/Treatments: Radiation Therapy
Education: SUNY Upstate Medical University

Jason M Wallen, MD, MBA, FACS, FCCP
Gastric and Esophageal
315 464-1800
Diseases/Specialties/Treatments: Thoracic Surgery; Achalasia; Barretts Esophagitis; Bronchiectasis; Bronchopulmonary Dysplasia (BPD); Chest Pain (Lung Related); more

Research Interests:

Lung cancer, lung infections, surgery in patients with limited pulmonary capacity, minimally invasive surgery, endoscopic procedures.

Education Interests:

Surgical Education

Clinical Interests:

Lung Cancer, Esophageal Cancer, Thymus Cancer

GERD/Gastroesophageal Reflux, Hiatal Hernia, Achalasia, Esophageal Diverticula

Minimally invasive surgery, robotic surgery, endoscopic surgery