Meet Mansilla Medical's Team

Meet Mansilla Medical's Team


Dr. Olivia Mansilla, MD

A native of Guatemala, Dr. Mansilla completed her medical degree at Universidad de San Carlos de Guatemala in 1989, her residency in Internal Medicine at the University of Pittsburgh in 2000, and her fellowship in Geriatrics at Virginia Commonwealth University - MCV in 2002. In 2003, she opened Mansilla Medical Practice. She is affiliated with Bon Secours and HCA Hospitals and is a member of the American Medical Association, Medical Society of Virginia, Richmond Academy of Medicine, and the American College of Physicians. She is an Assistant Clinical Professor in Foundations of Clinical Medicine at the Virginia Commonwealth University School of Medicine. Dr. Mansilla also serves as the Chief Medical Officer for MCH Health. In her spare time, Dr. Mansilla enjoys cooking, good fellowship with friends and family, and bible study.

Nurse practitioner

Heather Saxby, FNP-BC

Heather graduated from Duke University as a Family Nurse Practitioner after almost 8 years at VCU Health System as a Registered Nurse and Clinical Coordinator. There she learned how to advocate for and empower her patients to take charge of their own health. Prior to that, Heather graduated from the University of Virginia and worked in healthcare consulting in Washington, DC. Heather was drawn to the spirit and compassion she saw in nurses and aims to use that energy with her patients. Heather is honored to walk alongside her patients through the many facets of their lives, promoting holistic health and positive decision-making for patients and their families. When she’s not working, you can find her exploring new restaurants in Richmond, the South of the James Farmer’s Market, or visiting the mountains of Charlottesville (go Hoos!) with her husband and two daughters.

Nurse Practitioner

Ana Alzamora, FNP-C

Ana Alzamora, FNP-C, is a Board-Certified Family Nurse practitioner and a graduate of Fresno Pacific University with over a decade of experience in emergency and gynecological care. Originally from Peru, Ana joined Mansilla Medical from California, having moved to Virginia to be closer to family. Ana has a “patient first” approach to healthcare and provides personal and compassionate care to her patients. By practicing active listening, she establishes relationships built upon trust with each of her patients. She believes that establishing a high level of trust between the patient and provider leads to a higher quality of care. She is excited about all that Virginia has to offer and when she is not working, she enjoys staying active outdoors hiking, camping, and kayaking with her husband and two dogs.

Shenae Williams, PA
physician's assistant

Shanae' Williams, PA-C

Mrs. Williams is a certified Physician Assistant who graduated from Winston-Salem State University and South University-Richmond. She has lived all over the East Coast and the Midwest, but is excited to return to Chesterfield County where she grew up. She is open-minded and provides patient-centered care, respecting her patients as part of their own healthcare team. Her goal is to help patients minimize health challenges and maximize their quality of life because she believes life is meant to be enjoyed and lived to the fullest. She values listening to her patients and wants them to be comfortable with their care. In her spare time, she enjoys crafting, playing volleyball, traveling and experiencing new cultures. She is married with two children and one fur baby. 

CLINICAL manager

Mindy Petrie

The daughter of two proud immigrant parents (Colombian and El Salvadorean), Mindy Petrie graduated cum laude from Seminole State College in Florida with a degree in Health Science, specializing in Healthcare Management. Serving almost 18 years as a medical assistant, Mindy is well-versed in both the clinical aspects of care delivery as well as practice side. Because of her education and long years of patient experience, Mindy knows the true value of patient-centered care. Mindy is still relatively new to Virginia, and when not working she enjoys strength training exercise, hiking, and spending time with her husband, 3 kids, and 2 beagles.