Dr. Gilli is a Bakersfield native. He attended West High School and graduated from the USC School of Medicine in 1983. Dr. Gilli is Board Certified in Internal Medicine. He is an Assistant Professor of Medicine at UCLA teaching at Kern Medical from 1993 until 2019. At Kern Medical, he has helped teach over 300 physicians for 26 years until retiring from Kern Medical in 2019. Since Retiring from Kern Medical, Dr. Gilli is working full time at Mesa West Medical. He is also a Fellow at the American College of Physicians. In early 2009, Dr. Gilli underwent a total hip replacement and has returned to running. He is an avid walker, runner, cyclist, and skier.
Tracy Simonsen received her Bachelor’s Degree from Cal State University Bakersfield in Nursing. She then worked in Intensive Care Medicine for the next 7 years at Kern Medical Center. She obtained her Master's Degree from UCLA in Nursing with a specialty as an Acute Care Nurse Practitioner. Tracy Simonsen has been at Mesa West Medical since 1996. Tracy enjoys tennis and golf.
Kevin Nelson obtained his Family Nurse Practitioner and Physician Assistant Certificates from Stanford University. Kevin Nelson worked full time at Mesa West Medical from 2002 until the 2020 when started working part-time. Kevin is currently enjoying his home in Grover Beach but still sees patients at Mesa West medical four days a month and occasionally will be filling in for Dr. Gilli (when Dr. Gilli is off on vacation).
Sarah Dowda received her Bachelor’s Degree from Western Governor's University in Nursing in 2018. She then worked as an admission nurse and clinical manager for the next 5 years at a local hospice. She obtained her Master's Degree from Walden University in Nursing with a specialty as an Adult-Gerontology Primary Care Nurse Practitioner. Sarah Dowda has been at Mesa West Medical since 2023. Sarah is a huge Alabama Crimson Tide football fan.
Office Manager and Billier
Brenda is the office manager and primary biller. She has been at Mesa West Medical since 2002. You can reach her at firstname.lastname@example.org
Front Office and Appointments
Jeanette works in the front office, checking in patients, and working on appointments. She also assists Brenda on billing and CeCe on authorizations. She has been at Mesa West Medical since 2004. Her favorite team is the Oakland Raiders (football). Jeanette can be reached at email@example.com
Amy had been working at Mesa West Medical since September 2021. Her favorite teams are the Los Angeles Dodgers (baseball) and Las Vegas Raiders (football)
Medical Assistant Supervisor
CeCe has been working at Mesa West Medical since 1999. She is the medical assistant supervisor. She also overseas authorizations and medical record requests. Her favorite teams are the Los Angeles Rams (football) and the St. Louis Cardinals (baseball). CeCe can be reached at firstname.lastname@example.org
Alicia has been working at Mesa West Medical since July 2020. She primarily works with Tracy Simonsen and Kevin Nelson. She considers herself as a soccer mom. Her favorite teams are the Las Vegas Raiders (football) and Futbol Club Barcelona (Soccer). Alicia can be reached at email@example.com
Rachel has been working at Mesa West Medical since May 2022. She primarily works with Sarah Dowda. Rachel can be reached at firstname.lastname@example.org