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 cholesterol, 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 Board-Certified 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. He speaks fluent English and Tagalog.

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. Peter is fluent in English and Spanish.

Nina Nilsen MSN, FNP-C

Nina Nilsen is a kind and compassionate, board-certified family nurse practitioner who believes in delivering holistic patient care. She is a graduate of Post University, where she received her Master of Science in Nursing, specializing in family medicine. She believes in giving each patient a personalized experience in which they are an active participant in their own care. She explains things in a way that patients can understand and takes the
time to listen. It is her goal to help patients thrive and achieve wellness throughout all stages of life.

Tochukwu David Nwigwe MSN, FNP-C

Tochukwu David Nwigwe is a compassionate and dedicated Family Nurse Practitioner with a Master of Science in Nursing from Charles R. Drew University of Medicine and Sciences, and a Bachelor of Science in Nursing from Azusa Pacific University. He provides comprehensive care to patients of all ages, with a strong emphasis on prevention, wellness, and patient education. David brings a solid background in patient assessment, care planning, and clinical decision-making, supported by experience in diverse healthcare settings. Known for delivering culturally competent, high-quality care, he is committed to improving health outcomes across diverse populations. He is fluent in English and Igbo language.