About
Dr. Roberta Nieto grew up in Orange County and brings over 19 years of medical experience to her patients at Bountiful Health. She earned her medical degree from the Medical College of Wisconsin. She then completed a Family Medicine residency at Pomona Valley Hospital Medical Center, a UCLA-affiliated program. After residency, she stayed on as an attending physician to teach and precept doctors in training.
Dr. Nieto holds board certification in Family Medicine through the American Board of Family Medicine. She also completed all advanced practice modules offered by the Institute for Functional Medicine, deepening her focus on root cause medicine. Her clinical interests include diabetes, hypertension, thyroid disorders, high cholesterol, and chronic disease management. Her path into medicine began earlier, when she worked as a microbiologist at UCI Medical Center alongside infectious disease physicians treating HIV/AIDS patients. That experience, combined with her volunteer work as an emotional support buddy at the AIDS Services Center of Orange County, drew her toward patient-centered medicine. Outside the office, she spends time with family, volunteers at her church, plays guitar, tends an organic vegetable garden, and cares for rescued pets.
Education & Training
Medical School
Medical College of Wisconsin
Residency
Family Medicine, Pomona Valley Hospital Medical Center (UCLA-affiliated)
Additional Training
Completed all advanced practice modules offered by the Institute for Functional Medicine for root cause medicine
Certifications
Conditions Treated
Who is Dr. Nieto right for?
Dr. Nieto serves adults and families who want a primary care physician with deep knowledge of both conventional and functional medicine. Patients managing chronic conditions such as diabetes, thyroid disorders, hypertension, or high cholesterol benefit from her root-cause approach. She works well with individuals on high-deductible insurance plans or health sharing plans who want transparent, affordable care. Patients who value a physician who listens carefully and engages with the full context of their health history tend to thrive under her care.
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Frequently Asked Questions
Dr. Nieto treats a broad range of acute and chronic conditions. Her clinical focus includes diabetes, hypertension, thyroid disorders, high cholesterol, and chronic disease management. She also handles acute illness and provides preventive wellness care for adults and children.
Yes. Dr. Nieto holds board certification in Family Medicine through the American Board of Family Medicine (ABFM). She has maintained this certification throughout her 19-plus year career in medicine.
Dr. Nieto earned her medical degree from the Medical College of Wisconsin. She completed her Family Medicine residency at Pomona Valley Hospital Medical Center, a UCLA-affiliated program. After residency, she continued as an attending physician and mentored doctors in training.
Dr. Nieto completed all advanced practice modules offered by the Institute for Functional Medicine. This training sharpens her focus on identifying root causes rather than managing symptoms alone. She integrates this approach alongside conventional family medicine care.
Dr. Nieto starts by listening to each patient's full story. She believes health and wellness reflect the whole of a person's life experiences, choices, and circumstances. She meets patients where they are and works with them toward realistic, personalized health goals.
Yes. Dr. Nieto has extensive experience managing chronic conditions including diabetes, hypertension, thyroid disorders, and high cholesterol. She applies both conventional and functional medicine tools to support patients with long-term health challenges.
Dr. Nieto performs a range of in-office procedures included with membership. These include laceration repair, joint injections, skin biopsies, skin tag removal, cyst drainage, IUD removal, and suture removal. She also performs EKGs and point-of-care testing during visits.
Yes. Dr. Nieto offers telemedicine appointments by phone or video. Members can schedule virtual visits for concerns that do not require an in-person exam. Telemedicine visits carry no copay, just like in-office appointments.
Doctor profile last updated June 11, 2026