About

Dr. Vivian Keenan, MD
My career in medicine has always been a product of my interest in science and my passion for helping others. I decided to specialize in pulmonary medicine because I was fascinated with the complex pathophysiology of the lungs and how they affect the rest of the body. As a critically care trained intensivist I am also able to use my knowledge to provide care to patients in the hospital who are extremely ill, including those in the intensive care unit.
I see patients with a variety of conditions ranging from all sleep disorders to pulmonary disorders, including chronic obstructive pulmonary disease, asthma, emphysema, occupational lung disease, pulmonary fibrosis and lung cancer.
I perform advanced diagnostic pulmonary procedures, including endobronchial ultrasound, electromagnetic navigation bronchoscopy, and robotic bronchoscopy. I have a special interest in utilizing advanced pulmonary procedures to provide up-to-date technologies for the most accurate diagnosis and treatment, covering a plethora of conditions. I was one of the first pulmonologists in the state of NY to implement the newest bronchoscopy technology of robotic bronchoscopy for the benefit of my patients and community.
I collaborate with patients, their families, and other providers to help optimize people’s care. I believe in putting patients first and feel strongly that it is my role to evaluate them, treat them, and help them understand the science behind their diagnoses.
I am grateful for the opportunity to provide exceptional care for my patients and to continue my passion for educating and instructing the community.
Justin Croft, FNP-C
Justin Croft is a dedicated Nurse Practitioner committed to providing compassionate, patient-centered care. He began his journey in healthcare by earning his nursing degree from Brigham Young University-Idaho, where he developed a strong foundation in clinical practice and a passion for helping others. Building on that experience, Justin went on to complete his Master of Science in Nursing as a Nurse Practitioner at Walden University.
With a focus on treating the whole person, Justin values creating meaningful connections with his patients and guiding them toward healthier, more fulfilling lives. His approach blends evidence-based practice with genuine empathy, ensuring each patient feels heard, respected, and supported in their health journey.

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