Gonzalo Martinez, MD


Dr. Gonzalo Martinez graduated from the University of California, Irvine Medical School and is a board-certified family medicine with over 30 years of experience. He provides compassionate care to patients of all ages at Joshua Medical Group, located in Palmdale, California.

Whether patients seek care for women’s health, men’s health, pediatric care, diabetes, high blood pressure, or high cholesteror, Dr. Martinez delivers state-of-the-art treatments with a patient-centered approach.

He gives each patient the time they deserve in a warm and comforting environment. Patients aren’t just a number at Joshua Medical Group since premium patient care is number one priority. In fact, Dr. Gonzalo received numerous Vitals.com awards, including Compassionate Doctor Recognition, Patients’ Choice Award, and Patients’ Choice 5th Anniversary Award.

Preventive medicine is Dr. Martinez’s number one goal, which means he prevents and treats conditions before severe problems arise. He also recommends the least invasive treatment options first. Dr. Gonzalo is fluent in English and Spanish and is currently accepting new patients at his Palmdale office.


Jeff Advincula M.S.N., F.N.P-C


Jeff is a Family Nurse Practitioner and graduated from California State University, Bakersfield, with a Master of Science degree with emphasis on Family Medicine. Jeff is a compassionate healthcare provider with experience and expertise in multiple areas including acute and chronic environments.


Peter Rodriguez PA


Peter Rodriguez is a well-rounded and respected PA whom has been servicing patients within the Antelope Valley for 32 years. After graduating from Charles Drew Medical School, affiliation with UCLA, Peter joined High Desert Medical Group where he treated a wide range of patients within a large spectrum of specialties including: pediatrics, men’s and women’s health, geriatrics and chronic care management. Joshua Medical Group is honored to have him as a part of our team.


Cheridah Seeley PA-C


Cheridah Seeley PA-C is a Certified Physician Assistant with over 25 years experience. She obtained her undergraduate degree in Anthropology with special emphasis in Biology before receiving her P.A degree from the University of Southern California in 1995. As a PA, whom specializes in primary care, Cheridah has the medical knowledge and understanding to treat a variety of medical conditions including but not limited to: Women’s Health, hypertension, diabetes mellitus and pediatrics. After a brief absence, Cheridah re-joins our amazing team of providers whom are dedicated to servicing our patients in the Antelope Valley.