Our Staff



Meet Dr. Sista

Dr. Vinu Sista graduated from UC San Francisco after earning her bachelors degree at UC Los Angeles. She completed her residency at the University of Texas, Dental Branch and has been practicing dentistry in the Houston area for over 10 years.

Dr. Sista is certified in Invisalign and Nitrous Oxide sedation. She stays current on all aspects of general and cosmetic dentistry.

She is currently earning her Fellowship degree through the Academy of General Dentistry, an honor that few practicing dentists hold.

Dr. Sista is a member of the Academy of General Dentistry, the American Dental Association, the Texas Dental Association, the Greater Houston Dental Society and the Texas Academy of General Dentistry.

She is currently an Clinical asssistant Professor at the University of Texas Health and Science Center and a proud member of the National Health Service Corps, through which she has offered her services in underserved areas to help those in need.

Dr. Sista currently lives in Sugar Land with her husband, two children and two dogs. She is a kind, compassionate doctor with a gentle touch. We are pleased and thrilled to have her on board with us.




Meet Dr. “Irina” Zaltsgendler

Dr. Irina was born in the Ukraine and grew up in Belarus. She relocated to Canada and graduated from the University of Toronto Dental School in 1997. After owning her own dental practice in Minnesota for several years, she sold it when her husband got transferred to the Houston area.

It was perfect timing for us that we were looking for an associate at that time. Dr. Irina has been a wonderful addition to our practice. She loves getting to know her patients and helping them achieve their dental goals.

She is certified in Nitrous Oxide and of course is current with her CPR certification.

Dr. Irina lives in Katy with her husband and 15 yr old son. She also has a daughter living in Chicago.



Registered Dental Hygienist

Janet has been practicing dental hygiene for over 30 years. She received her Bachelor of Science degree from West Liberty University in West Virginia. She has worked for Dr. Andrews for 19 years and enjoys the relationships she has developed with her patients over those years. Her main goal is to make her patients feel comfortable while providing them with the utmost care.

Janet is involved with volunteering at the James E Randolph Elementary School which was named after her husband. He was very involved with the children of KISD from coaching to teaching. This school is a gift from the Katy community and a legacy for her husband that she will be forever grateful.

Janet is always looking for ways to help people in need. She has been on 2 dental mission trips-Guatamala anda Columbia. She resides in Katy and loves her yoga in her spare time.





Registered Dental Assistant

Amanda has been on Dr. Andrew’s staff for over 15 years. Starting out as one of his assistants, she has moved on to be the office manager. She does miss working with patients so you may find her assisting one of our associates at any given time.

Her main goal is to have our patients leave our office completely satisfied with their dental care. Amanda is readily available to answer all questions and concerns a patient may have.

She resides in Katy with her husband and two children.







Registered Dental Assistant

Jodie has been with us since 2011. She works chairside with our doctors to assist in patient care. She makes them feel at ease during their dental visit. Jodie is a great asset to our office from helping with sterilization to keeping the operatories clean between patients. She is certified in radiological procedures and maintains her CPR certification.



All Major Credit Cards & Verified Insurance Accepted
Hours – Phone
281-578-0211 Monday-8-5 Tues 9-3 Wed-9-6 Thurs-closed Friday-8-5