Dr. Lawrence GassnerMD

Dr. Gassner specializes in internal medicine. He focuses on diagnosing and managing both straightforward and complex medical conditions. Prevention and patient advocacy are central to his clinical approach.

Dr. Gassner trained at Washington University in St. Louis, where he earned his Doctorate of Medicine in 1988. He completed his internship and residency at Maricopa Medical Center in Phoenix. His training and decades of clinical practice ground his expertise in internal medicine.

Dr. Gassner has practiced internal medicine in Phoenix for decades, completing his residency at Maricopa Medical Center in 1989. He built much of his career at John C. Lincoln Hospital North Mountain, where he served in multiple leadership roles.

Yes. Castle Connolly named Dr. Gassner a Top Doctor in 2011 and 2012. Phoenix Magazine listed him among its Top Doctors in 2007, 2010, and 2011. S. News also recognized him as a Top Doc in 2011.

Dr. Gassner served as Chief of Staff at John C. Lincoln Hospital North Mountain from 2005 to 2009. He chaired the Credentials Committee from 2003 to 2006 and sat on the Board of Directors from 2006 to 2012.

Dr. Gassner personally sees every patient who comes to the office. He does not use nurse practitioners or physician assistants in that role. Members receive direct care from him at every visit.

Yes. Members can reach Dr. Gassner directly by phone after hours and on weekends. This direct access is a core feature of his MDVIP concierge practice.

Dr. Gassner earned a Bachelor of Arts in Business Administration and Accounting, Cum Laude, from Duke University in 1979. He then completed his pre-medical studies at the University of Southern California before entering Washington University School of Medicine.