John M. Creasy, MD

Dr. Heather E. Merry is a board-certified thoracic surgeon in Portland, OR. Dr. Merry has a focus in thoracic oncology and shortness of breath. As a thoracic surgeon, she performs a diverse array of lung operations, including minimally-invasive resections for lung cancer, tracheal surgery, plication for a paralyzed diaphragm and surgery for lung and pleural infections. Dr. Merry has expertise using a proactive multi-disciplinary approach for patients with thoracic malignancies, infections and late-stage lung disease, working closely with each patient's oncologist and pulmonologist to help provide an accurate diagnosis and to identify treatment options with the best potential to extend longevity and improve quality of life.

Jun Ma is a board-certified nurse practitioner specializing in gynecologic oncology in Portland, OR. Jun provides both outpatient and inpatient care and cancer genetic counseling. In addition, Jun assists in gynecologic oncology and pelvic surgeries. Her philosophy of care centers on providing evidence-based and passionate care during her patients' cancer journeys.

Caleb A. Langsam, PA-C, is a certified physician associate specializing in hematology and oncology at the Providence Cancer Institute's Franz Dysplasia Clinic in Portland, Oregon. With a background in family practice and urgent care, he emphasizes compassionate, patient-centered care and encourages active patient involvement in treatment plans through education and shared decision-making. Caleb received his training from Rutgers School of Health Professions and has a commitment to serving others that predates his healthcare career, having worked with various nonprofit organizations. Originally from New York City, he has lived in Portland since 2005 and enjoys exploring the Pacific Northwest in his free time. Generated from the website