Amanda W. Gumbert, M.M.S, PA-C

Amanda W. Gumbert received her Bachelor of Science degree in Kinesiology at San Diego State University in 2002. She worked as an Exercise Physiologist at the Cardiac Treatment Center at Scripps Memorial Hospital La Jolla before going to Physician Assistant School. Amanda graduated from Midwestern University in Glendale, Arizona with a Master of Medical Science degree in Physician Assistant studies in 2005. She began working for Dr. Ghosh in January 2006. Amanda is a member of the American Academy of Physician Assistants, Association of Neurosurgical Physician Assistants, and The San Diego Society of Physician Assistants. Amanda when not working; trains for half-marathons, and has volunteered for the Girl Scouts of America, Miracle League Baseball, and The Rock and Roll Marathon San Diego as an Assistant Medical Director.

Felix Regala, MPAP, PA-C

Felix Matthew Regala was born and raised in Abilene, Texas where he graduated from Abilene High School in 2001. He was honored with the Chuck and Doris Moser Scholarship for his accomplishments as a varsity athlete in baseball and his excellence in academics and community service. He then attended Baylor University where he graduated in 2004 with a Bachelor of Science degree in biology. Felix then spent a couple of years working in the laboratory at the Salk Institute for Biological Studies and Johnson & Johnson. He then went on to the Keck School of Medicine at University of Southern California to obtain his Master of Physician Assistant Practice degree. Felix graduated from physician assistant school in 2010. While pursuing his PA degree at USC, Felix served as class president and spent time training in neurosurgery and orthopedic spine.

Felix enjoys being active, including playing basketball, surfing, snowboarding, golfing, and exercising. Felix is also a member of the American Academy of Physician Assistants and the California Academy of Physician Assistants.

Joseph Roberts, MPAP, PA-C

Joseph graduated Magna Cum Laude from California State University Long Beach in 2012 with a Bachelor of Science Degree in Kinesiology, Exercise Science. Joseph then worked as a physical therapy aide in a pool and land-based physical therapy clinic in Los Angeles, CA while volunteering in the emergency department at St. Mary’s Medical Center in Long Beach, CA. Joseph then attended the Keck School of Medicine of USC Physician Assistant Program in 2014 and obtained a Master of Physician Assistant degree in 2017. Over the last two years, he has worked in emergency medicine at Sharp Grossmont Hospital and Scripps Memorial Encinitas Hospital and is now working full-time at SENTA Clinic. At present, he is a member of the American Academy of Physician Assistants, the Society of Emergency Medicine Physician Assistants, and the San Diego Society of Physician Assistants.

Joseph is a North County San Diego native who enjoys exercising, surfing, snowboarding, golfing, and playing guitar.

Cassie Petit, MS, PA-C

Cassie Petit grew up in Troy, New York and attended Providence College where she earned a Bachelor of Arts in Psychology with a minor in Pre-Health Sciences. During undergraduate studies, Cassie was involved in multiple volunteer opportunities including a service trip to the Dominican Republic where she helped provide medical care to underserved areas.

She then attended the University of Bridgeport Physician Assistant Institute where she served as the chairperson for the Kidney Early Evaluation Program. She was selected to present her thesis at the Connecticut PA Conference and later at the Association of Family Practice Physician Assistants Annual Conference. She was nominated to be a member of the Pi Alpha Honor Society and graduated Magna Cum Laude from the UB Physician Assistant Institute in 2014.

She was then accepted into the Norwalk Hospital/Yale School of Medicine PA Surgical Residency Program. During her residency training, she had the opportunity to work with the Neurosurgical Associates of SW CT which confirmed her interest in neurosurgery. After she finished residency, she was asked to join Neurosurgical Associates and practiced with them for a year and a half but eventually made her way to the sunshine where she has been working at SENTA Clinic Neurosurgery ever since.

Cassie is an AAPA member and enjoys spending time with her son (a pitbull mix), traveling, and doing anything outdoors.

Deborah Frantz, M.M.S, M.S., PA-C

Deborah Frantz is a California native. She attended American University in Washington, DC graduating with a Bachelor of Science in Marine Science and Environmental Studies. She was a college athlete, playing NCAA D1 volleyball all four years. She then attended California State University, Long Beach where she received a Masters of Science in Shark Reproductive Physiology. During her first master’s degree, she began transitioning into medicine, and went on to receive her Master of Medical Science degree in Physician Assistant studies at Midwestern University in Downers Grove, IL. She graduated in 2017 and has been working at Senta Clinic in neurosurgery. Deborah is a member of the American Academy of Physician Assistants and The San Diego Society of Physician Assistants.

Denise Chadwell

Denise Chadwell is a native San Diegan. She has over 34 years experience in the healthcare profession, 26 of them being in the specialty of neurosurgery. Denise began her medical career as a Certified Unit Secretary at Grossmont Hospital. She also worked in the Central Supply Department putting instrument trays together and sterilizing them for the operating rooms, as well as inventory and re-stocking of supply carts for each floor. When offered a position in a neurosurgery office, the daytime hours with weekends off enticed her to make the switch! She has worked in all aspects of the office including receptionist, surgery scheduling, back office, billing and collections. Denise has been Dr. Ghosh’s Office Manager since the opening of his practice in San Diego in 2002.

Melissa Padilla, Surgery Coordinator

Melissa has an Associate of Science Degree in Medical Office Administration. She has worked in healthcare for 15 years. She started out working in a radiology department processing film and scheduling exams. In 2003, she began working for Dr. Ghosh. Melissa schedules Dr. Ghosh’s surgeries and helps with many of the other office tasks. Her goal is to try and make the scheduling of our patients surgeries organized and stress free.