Dr. Manjari Nathan, MD is a health care provider primarily located in WALNUT CREEK, CA, with other offices in Walnut Creek, CA and Concord, CA (and 3 other locations). She has 27 years of experience. Her specialties include Sleep Medicine, Critical Care Respiratory Therapy, Critical Care Medicine, Internal Medicine, Pulmonology. Dr. Nathan is affiliated with John Muir Medical Center Concord. She speaks Spanish and English.