Darya Soto, M.D.

Dr. Soto is Board Certified in Pulmonary and Sleep Medicine. She completed her Fellowship at the University of California, San Francisco, where she was an Assistant Professor of Medicine. She is the Founder and Medical Director of Pulmonary and Sleep Associates of Marin.  She also directs the Pulmonary Function Lab and the Pulmonary Rehabilitation Program for the practice. Dr. Soto does Pulmonary Consultations at Novato Community Hospital.  She is also a Board Member of Meritage Medical Network and a Medical Advisor for Somnoware.

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Ali Massoumi, M.D.

Dr. Massoumi is Board Certified in Pulmonary and Critical Care Medicine. He completed his Fellowship at Georgetown University.. He joined our practice August of 2015. He does Pulmonary and Critical Care consultations at Novato Community Hospital, where he is the Medical Director of Respiratory Services. Dr. Massoumi grew up in Marin and enjoys spending time with his wife and 2 small children.

Rafael Sepulveda, M.D.

Dr. Sepulveda is Board Certified in Internal Medicine and Sleep Medicine. He completed his Sleep Fellowship at the University of Tennessee Health Science Center. in 2017. He was trained in both Adult and Pediatric Sleep Medicine, rotating in busy hospitals such as Memphis Veterans Medical Center and Le Bonheur Children's Hospital. He joined our practice August 2017. He grew up in Puerto Rico and enjoys traveling, sunny beach days and outdoor activities.

we welcome our newest provider,
christina Quack, pa-c

Christina Quack is a Board Certified Physician Assistant practicing since 2011. She completed her Bachelor of Science degree in Physician Assistant Studies at the University of New Mexico followed by completing her Graduate degree at the University of Nebraska Medical Center. She has spent the majority of her career working in Pulmonary and Sleep medicine. Prior to that, she worked for twenty years as a critical care respiratory therapist. She joined our practice in January 2019. Christina grew up in Albuquerque, NM and enjoys spending time outdoors with her family.