Dr. Yvonne A. Barry is a seasoned family practitioner featuring nearly two decades of experience in her field. Her scope of family practice encompasses women’s health, sports medicine, adult medicine, mental health, and geriatrics. She has been the on-call doctor for Cirque du Solei, has provided care for the geriatric community through her on call services in the greater Las Vegas area, and has acted as an advocate for women’s cardiovascular health. Dr. Barry is an avid reader and takes an interest in promoting her patients’ health through preventative measures such as optimizing nutrition, exercise, and stress relief. Furthermore, The International Association of HealthCare Professionals (IAHCP) has selected Dr. Barry to be featured in their premier publication of The Leading Physicians of the World. Dr. Barry helps people get well both physically and emotionally. “I pride myself on being compassionate as well as scientific. I enjoy seeing people’s faces light up when I tell them they are well”, says Dr. Barry.

Dr. Barry is comfortable seeing ages 6 and up.

Dr. Vikas Lahar has recently joined our team and is open for scheduling. If you are a previous patient of Dr. Lahar, you can request your medical records be faxed to 702-476-2975.

Dr. Eugene Shin is a board certified fullscope Family Medicine physician who graduated from Ross University School of Medicine and completed his residency at the Sunrise GME Consortium Family Medicine residency program at Southern Hills Hospital and Medical Center in Las Vegas, Nevada. His focus is on complete (fullscope) care of his patients in both the clinic and hospital setting. 

Prior to medical school, Dr. Shin was a level II Staff Research Associate for three years at the Harbor UCLA Biomedical Research Institute (now called The Lundquist Institute) in the Department of Neonatology. The lab he worked in specialized in lung maturation where he performed real time polymerase chain reactions, western blots, immunohistochemistry, immunofluorescence, cell/tissue culture, and laser capture microdissection and has published peer review articles from his time in research. During his Family Medicine residency, Dr. Shin was chief resident and was instrumental in the design, implementation, staffing, and supervision of his residency’s COVID-19 Mobile Screening Unit during the COVID-19 pandemic. Dr. Shin was also a guest speaker on KCEP Power 88.1’s Morning Show to educate the Las Vegas Community on the COVID-19 virus. He also appeared on NBC’s National Red Nose Day Special and KTNV Channel 13 Action News’ Morning Show. 

Dr. Shin is comfortable seeing ages 16 and up.

Dr. Sheila Miranda is an Internal Medicine specialist and primary care physician at Valley Oaks Medical Group in the Sun City Office. Originally from California, she moved to Las Vegas to pursue her residency at the University of Nevada School of Medicine in 2001. With over 20 years of experience, she initially worked in local hospitals, providing care to acutely ill patients. However, three years ago, she transitioned to the primary care setting.

In addition to her medical career, Dr. Miranda has a passion for bodybuilding. She is a professional bodybuilder and has been actively competing in bodybuilding shows for the past five years. Her expertise in this field allows her to offer patients valuable insights into proper nutrition, fitness, and weight loss strategies. Outside of work, Dr. Miranda is happily married to her high school sweetheart for 23 years and is the proud mother of two sons.

Dr. Miranda is comfortable seeing ages 18 and up.

Dr. Catherine Nguyen-Ward obtained her Doctor of Osteopathy degree from Touro University in 2018. With six years of experience in the medical field, she has established herself as a respected professional. Originally from Garden Grove, CA, Dr. Ward has made Las Vegas her home for nearly a decade. Married and accompanied by two beloved dogs, she enjoys solving jigsaw puzzles and pursuing her artistic interests in her free time. Dr. Catherine Nguyen-Ward’s passion for culinary exploration drives her to seek out new dining experiences in Las Vegas. 

Dr. Ward is comfortable seeing ages 12 and up.

Dr. Aishwarya Vyas-Lahar is an internal medicine physician. She is originally from India but resides from Rochester, NY. She did her medical school training from American University of Antigua and has had her MD since 2016. She graduated residency in the midst of the pandemic in June 2020 from Norwalk-Yale University program in Connecticut. During her residency training, she was awarded in recognition of her love and dedication to patients as a primary care physician. In her free time, she loves to do and teach yoga and meditation, and has an interest in Bollywood dancing and is a big foodie.

Dr. Vyas-Lahar is comfortable seeing ages 18 and up.

Dr. Alexander Castillo is originally from Cerritos, CA and has been in Las Vegas for about four years. He got his medical degree from Ross University School of Medicine before coming to Las Vegas. The reason Dr. Castillo got into the medical field is because it combines his interests in science and problem solving with his dedication to maximizing the health and well-being of his patients. He enjoys developing longitudinal relationships with his patients.

Dr. Benjamin Chan will be joining the Valley Oaks team at the beginning of June. Dr. Benjamin Chan was born and raised in Manila, Philippines. He grew up multi-culturally with Chinese, Filipino, and American influences and is proud to say he is fluent in English, Chinese, and Tagalog. He completed medical school in the Philippines and trained in Pontiac, Michigan. Dr. Chan has over 36 years of healthcare experience. Outside of work, he enjoys golf, photography, and has been published multiple books. He also has a Lhasa apso named Benny.

Dr. Guillermo Fraga will be joining the Valley Oaks team in July. To schedule, please call 702-936-4090. If you are a previous patient of Dr. Fraga, you can request your medical records be faxed to 702-476-2975.

Dr. Stephanie Zority is a proud Las Vegas local. After completing her undergrad at San Diego State University, she went on to medical school at Semmelweis University in Budapest, Hungary. Yearning to return home to Las Vegas, she then went on to do her residency training in Family Medicine with Valley Health System Consortium, where she served as chief resident her final year. She is currently completing a fellowship in Addiction Medicine as she hopes to bring better care to those affected by substance use disorder. She also has a special interest in women’s health, sexual health, obesity medicine and disability medicine. Outside of medicine, Dr. Zority has a love for all things Bravo TV and is an avid Swiftie.

Dr. Zority is comfortable seeing ages 6 and up.