Medical Professionals

All professionals at Memorial Southwest Family Practice maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Zhengnan Yin, MD

Zhengnan Yin, MD, PhD. has been practicing family medicine for more than 25 years. He is a board-certified Primary Care Physician through the American Board of Family Medicine. Dr. Yin’s medical education covers a variety of medical specialties including a Master’s degree in Pathology and a Doctorate degree in Dermatology as well as numerous years of experience in emergency medicine. In addition to Dr. Yin’s noted accomplishments and owning a private practice, he continues to be very active in medical research on prostate cancer, lung cancer, colon cancer and cardiovascular diseases. His research work has been published in many esteemed scientific journals. Currently, Dr. Yin provides medical care to patients ranging in age from 1 to 90 plus years in age. His interests are to help his patients with their needs in acute and chronic diseases, skin disorders, preventive medicine and a variety of joint diseases. Dr. Yin is also a USCIS designated Civil Surgeon and provides quality immigration physical examinations. Dr. Yin shares that his motivation for service to others is “When I am truly able to help one of my patients, I believe that I am the one who gains the most. Giving my time and energy to those in need is what gives my life a genuine sense of fulfillment.”

Pei Wu, Physician Assistant, PA.

Pei Wu is the Physician Assistant at Memorial Southwest Family Practice. He graduated from Lock Haven University on 2017 and he is being at the office since then. He is the Doctor’s right hand and is always available to assist our patients 24/7 every day of the week. Pei is known for his hard work and dedication. On his free time he likes to travel and know different places.

Cindy Segovia, Medical Assistant, RMA.

Cindy Segovia is a Registered Medical Assistant that has been with Memorial Southwest Family Practice since 2018. Her life dream is to be in the medical field helping others and giving our patients her best. She believes that the key to success is having a positive attitude. On her time away from the clinic, she enjoys spending quality time with her family and friends.

Kuashaya Dominique, Medical Assistant, RMA.

Kuashaya Dominique (also known as Shay) has been part of Memorial Southwest Family Practice since 2018. She is a Registered Medical Assistant who graduated from Houston Community College. She loves taking care of our patient and strives to make the most out of every day at the office. Shay loves enjoying her free time with her husband and family.

June Shao, Medical Tech.

June Shao is a Medical Technologist that has been with Memorial Southwest Family Practice since the start! She graduated with a Bachelor of Science from UTMB. She is known for her kind demeanor and genuine desire to make patients feel as welcome and as comfortable as possible. Outside of the clinic, she loves to spend quality time with her family.

Keding Yin, Office Manager.

Keding Yin is being the Office Manager at Memorial Southwest Family Practice since 2016. He is the face you see on the front desk every day. His computer skills and attention to detail allow him to help the patient the best and fastest way possible. Keding enjoys his free time with his dog and family.