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Doctors & Staff

Meet the experienced and friendly doctors and staff who make Sitterle Vision Source the leading provider of vision care products and services in San Antonio.visionsource-Sitterle-Staff 2022


Scott Sitterle, O.D.

Dr. Sitterle opened his practice on Thousand Oaks in 1994. He graduated from the University of Houston College of Optometry in 1990. He currently sees patients Monday-Thursday. He is licensed as an optometric glaucoma specialist and in the diagnosis and treatment of eye disease, injury, and infection.

Dr. Sitterle has been an active member of the Community Bible Church since 1993 and plays trumpet in the praise orchestra. He is also a board member and past vice-president of the Northeast San Antonio Rotary Club. Dr. Sitterle is also a Senior Sales Coordinator for NSA/Juice Plus+, a company that educates the public on the relationship between nutrition and disease and markets fruit and vegetable nutritional supplements. His goal is to help his patients understand that almost 90% of all chronic disease (macular degeneration, cataracts, hypertension, diabetes, arthritis, cancer, auto-immune disease, etc.) can be prevented or managed through proper nutrition.

Most people don’t know, but Dr. Sitterle volunteered as a radio DJ on 91.3 FM from 1990-1994. His favorite past-time besides music is chillin’ in the sun. Favorite spots are the beach, lake, river, or pool; anywhere there is sun and water. He and his wife, Gloria, have been married since 1990 and have two sons, Philip, who works at Samsung in Austin, and Clifton, who is studying to be a Vet at Texas A&M.

Nicole Maldonado, O.D.

Dr. Nicole Maldonado was born and raised, right here, in our hometown of San Antonio, Texas. After graduating from O’Connor High School, she attended St. Mary’s University where she received her Bachelor of Science Degree in Biology. Dr. Maldonado then attended the University of Houston College of Optometry in Houston, Texas, where she earned her Doctorate of Optometry Degree. Her training includes externship rotations at the Robert Cizik Eye Clinic at Memorial Hermann Hospital and at the South Texas Veteran’s Administration where she focused on retinal pathology and ocular disease.

She loves talking with her patients, relaxing with family, country dancing, vacationing at the beach and last, but definitely not least, Go Spurs Go!


Nicole – Optician

Hi, I’m Nicole. I have been in the optometry field since 2012 but am new to this office in 2017. I enjoy being a part of this business because I always find myself learning something new. My fav part of my job would be patient satisfaction. I believe in treating a patient the way I would like to be treated. Outside of the office, I like taking my daughter on mini adventures around San Antonio, just taking in the beauty around us.

Chad, CPO – Optician

Chad is the coolest member of the staff (in his own mind), joining our awesome team in March 2009. He has been in the optical field for 7 years and is an expert at optical sales and eyeglass styling and fitting. Lastly, Tampa Bay isn’t a real football team….Go Cowboys!! Like Dr. Nooshin, he also runs many half marathons (again-in his own mind)!

Braeden – Optometric Assistant

Hello. My name is Braeden, and I’m a current student at the University of the Incarnate Word. I was not born here in Texas, however, I have lived here the majority of my life and I love it. Some of my hobbies include listening to music, learning new skills, and definitely meeting new people. I love to better my social skills and getting involved in my community. I live my life to the fullest trying not to let the negatives get in my way of progressing and lastly, I thank God for all the things he has done, not only in my life but in everyone else’s as well.


Genna – Optometric Technician

Hi, I’m Genna, I graduated from O’Connor High School in 2010. I’m new to the office but have been in the optometry field since 2014. In my free time, I love spending time with my husband and my pet bird Yuki. I also enjoy live music, hiking, and of course wine!

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Fernando Mireles – Optician

Hello! My name is Fernando Mireles and I was born and raised in the beautiful city of San Antonio. I am new to the optometry field but I’m exicted to learn more each day and I am a current student at texas state university studying to get my BBA. I enjoy the outdoors, traveling, and spending time with my family. I do everything for God and it’s a blessing to know I can help others.

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Monty – Optometric Technician

Hello, my name is Monty and I am a San Antonio native. I graduated from Texas A&M University-College Station (Whoop) in 2018. I am currently gearing up to begin a Doctorate of Optometry Degree within the next year. In my spare time, I enjoy bonding with family, caring for indoor plants, and rewatching The Office. I am thrilled to be a part of the team and I look forward to seeing you at your next exam.


Sandra Gonzalez – Insurance and Billing Specialist

Hello, my name is Sandra Gonzalez. I recently moved to San Antonio Texas but I was born and raised in Laredo, TX. I’ve worked in the optometry field for over 20 years. I am an Insurance and Billing Specialist to Sitterle Vision Source. I love meeting new people and enjoy helping others. On my spare time I love spending time with family, BBQs, and 80’s music.

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Kylee – Optometric Technician

My name is Kylee and I’m originally from Washington state. The military has just recently brought us to Texas and I absolutely love it! Back in 2018 I graduated from Washington State University with my Bachelor’s degree in Elementary Education and an endorsement in Middle-Level Math. As much as I loved teaching, it was time to try something new and that’s how I ended up here. I have a passion for helping others and I love seeing people smile!

In my free time, I enjoy watching sports, reading, cooking, and spending time with my fiance and our dogs.


Yvette – Optician

Hello! My name is Yvette. I have been in the Optometry field since 2011 but I just recently joined this amazing team here at Sitterle Vision. I was born and raised in Northern California. I have only been here in San Antonio a few months, and whoa! I was not prepared for this heat. I am currently working toward my Bachelor of Science in Nursing. My free time is spent reading a good book or with my family. We love the outdoors, exploring new places, and we enjoy going to baseball games. Go Dodgers!!


Allena – Front Desk Coordinator

Hi! I’m Allena! I’m currently attending the University of the Incarnate Word pursuing my Bachelor’s in Vision Science with a minor in English. Go cardinals! I’m San Antonio, Texas born and raised and love spending my free time walking around downtown, in parks, bookstores or on campus. I enjoy yoga, reading and watching movies on my free time.