Meet Our Faculty

Program Director

Dr. Paul Watanakunakorn MD is the founding Program Director for the Internal Medicine Residency at Sierra View MedicalCenter. Originally from Ohio, Dr. Watanakunakorn completed undergraduate studies earning a BA at Duke University, and received his MD from Northeastern Ohio Medical University. Following residency training in Internal Medicine and an additional year as Chief Resident and Associate Residency Program Director at Summa Health System in Akron Ohio, he returned to the Youngstown, Ohio area where he was in private practice and was a member of the teaching faculty at Northside Regional Medical Center for over ten years. In 2013, Dr. Watanakunakorn became Director of the Internal Medicine Clinic at Northside Regional Medical Center, where he oversaw day to day operations of the clinic as well as teaching of the internal medicine residents in clinic. He also served as Medical Director for the Infusion Center. Dr. Watanakunakorn was Clerkship Director for third year medical students from NEOMED, Ross University School of Medicine, and American University of Antigua School of Medicine rotating in Internal Medicine. Dr. Watanakunakorn served on many hospital committees including as Chairman of the Pharmacy and Therapeutics Committee, and served on the Northside Regional Medical Center Board of Trustees, including 3 years as Chairman. He is a Clinical Assistant Professor of Internal Medicine at Northeastern Ohio Medical University, and sits on the NEOMED Foundation Board of Directors. Dr. Watanakunakorn also served as Team Physician for the Youngstown Phantoms (USHL – Tier 1) for 9 years, coordinating and providing health care for the entire hockey team including multiple NHL draft picks.

In 2019, Dr. Watanakunakorn relocated to California to help oversee and finalize the accreditation process for the new Internal Medicine Residency program at Sierra View Medical Center. He resides in Springville with his wife Amanda, daughter Alexis and son Joshua. Outside of medicine, Dr. Watanakunakorn’s interests include golf, skiing, cooking, and serving as a media correspondent writing feature articles on former Youngstown Phantoms for their website.

Associate Program Director

Nashwan Obad, MD, is the Associate Program Director for the Internal Medicine Residency Program at Sierra View Medical Center. Dr. Obad is a lifelong resident of Porterville, where he graduated from Porterville High school - Class of 2007. He originally started his journey at SVMC as a volunteer in the Medical Records Department during his high school years. Dr. Obad attended University of California, San Diego for his undergraduate studies and Ross University School of Medicine for his medical education. In 2021, he completed residency from San Joaquin General Hospital and joined Sierra View Medical Center’s Internal Medicine Department immediately following graduation.

Dr. Obad is interested in Graduate Medical Education and Academic Medicine. His main focus is investing in and providing the best medical education experience for medical students and residents while helping them become the most competitive and well-rounded physicians. Outside of medicine, Dr. Obad loves spending time with his family, including daughter Iman and son Hassan. He also loves reading, watching documentaries, and barbequing.

Core Faculty

Dr. Bindu Sagarreddy, MD

Dr. Nirupama Vemuri, MD

Dr. Rajinderpal Chahal, MD