Meet our Family Practice Physicians

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Jeffrey Aoki, MD, FAAFP

Board Certified Family Medicine

Medical School: Stritch School of Medicine, Loyola University

Residency: Ventura/UCLA County Medical Center

Family medicine allows the opportunity for patient, families, and provider to form a unique relationship.

Dr. Aoki believes that the health and care of a patient should be a joint decision with the patient having an active role in their care.

Dr. Aoki has two grown daughters, Lauren and Stephanie, and two grandchildren

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Robert Castillo, MD

Board Certified Family Medicine

Medical School: University of California, San Diego School of Medicine

Residency: San Bernardino County Medical Center

Dr. Castillo’s philosophy is to provide compassion, sensitivity and empathy while providing excellent patient care.

“I believe that the health of any individual is a joint effort. Both my patient and I must work in unison to enrich the physical, psychological, social and spiritual areas of their life.”

Dr. Castillo and his wife Rhonda have two grown children and three grandchildren. Dr. Castillo is a faithful Christian with a Catholic background and enjoys basketball, tennis, and nearly every endeavor that will take him outdoors.

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George Gonzalez, MD

Board Certified Family Medicine

Medical School: UCLA School of Medicine

Residency: UC Davis Contra Costa County Hospital

Dr. Gonzalez believes in caring for the whole person. He strives for excellence by providing comprehensive care to patients of all ages.

He is fluent in Spanish and English.

He’s been married for over 30 years and has four adult children. During his free time he takes frequent, domestic, and international mission trips. He also enjoys running, playing golf and tennis.

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Harjagjit Maan, MD

Board Certified Family Medicine

Medical School: N.H.L. Municipal Medical College

Residency: Riverside County Regional Medical Center

Dr. Maan believes in preventative medicine and educating his patients on their condition.

Dr. Maan is married and has two children. He enjoys World War II history.

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John C. Monteleone, MD

Board Certified Family Practice

Medical School: UC Davis

Residency: UCSF- Fresno

Dr. Monteleone’s life mission has always been to enjoy what he does, share his enthusiasm for medicine, inspire others, build friendships, strengthen relationships, learn new information and skills, care with compassion, and protect and safeguard the health and lives of his patients and community.

Dr. Monteleone, a native of Southern California, moved to Fresno in 1981 to begin his residency program.

Dr. Monteleone is married to his wife Lisa and together they have three adult children.

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Judy Miramontes, MD

MPH Board Certified Family Medicine

Medical School: David Geffen-UCLA School of Medicine

Residency: UC Davis

Dr. Miramontes is a firm believer in early intervention, prevention and health education. She works with her patients to develop a trusting relationship between patient and doctor.

Dr. Miramontes has a large family and enjoys spending time with them, including her animals at home. She likes to travel to the coast and enjoys music and reading.

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Dennis Nakata, MD

Ph.D. Board Certified Family Medicine

Medical School: UCSF School of Medicine

Residency: Valley Medical Center, Fresno

Dr. Nakata has been in private practice since 1979. He joined Peachwood Medical Group in 1995.

He has a special interest in family medicine and preventative healthcare to maintain the highest level of functioning and independence.

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Jerry Reimer, MD

Board Certified Family Medicine

Medical School: Keck School of Medicine USC

Residency: Loma Linda University

Dr. Reimer finds meaning in helping people with the medical and life challenges they face, in a one-on-one personal and compassionate style.

Dr. Reimer applies the most up to date medical concepts and treatment available today.

Dr. Reimer is married and is a father of four. Dr. Reimer is actively involved in his children’s school as well as their sport activities.

He enjoys his church involvement, photography, astronomy, and cosmology.

Dr. Quintana Van Horne, MD

Board Certified Family Medicine

"From early on in medical school, we are taught that the history is the most important part of the doctor-patient interaction. I found that listening to patients is critical in assessing their needs and allows us to build trusting and therapeutic relationships.”

Dr. Quintana-Van Horne has two young children. In her free time, she enjoys attending sporting events, traveling, and spending as much free time as possible with her friends and family.

Marguerite Smith, MD

Board Certified Family Medicine

Medical School: University of Wisconsin- Madison

Residency: UCSF Fresno

“I strive to offer hope to those who are hurting.” Corinthians 1:3-4

Dr. Smith was born and raised in Detroit, MI. She moved to California in 2000. She is active in her church and enjoys running and tennis.

Extender Family Practice

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Joyalene Hiersche

Family Nurse Practitioner

Joy is a family nurse practitioner who is passionate about women’s health, but loves the variety of family practice.

Her goal is to provide compassionate care and encourage prevention strategies so that patients can achieve their peak health.

Personal interests include biking, swimming, backpacking, traveling and spending time with her family.

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Jennifer Nay, PA

Physician Assistant

Jennifer is a native of the Fresno/Clovis area.

Jennifer believes that prevention is the key to a healthy family. She is married and has two children.

Jennifer enjoys spending time with her family and also hiking, rollerblading, cooking, and scrapbooking and sewing.