Meet The Team

Cathy Martinez

Patient Coordinator

I am the Patient Coordinator at El Campo Kids Dentistry. I am one of the first faces that patients see when they walk in the door. I've had the pleasure of being part of this team for over 3 years. It has been rewarding and it gives me the desire and satisfaction to give all I can. The ability to help and interact with patients, getting positive feedback and fantastic results gives me pride in my work. I have been a resident of El Campo for 32 yrs. I'm married to John, I have 3 children and 4 grandchildren, who I enjoy spending time with.

Valerie Olguin

Dental Assistant

I was born and raised in El Campo, Texas graduating from El Campo High School. I graduated from Dental Assisting Options and have been a part of the El Campo Kids Dentistry team for over 6 years. I am Certified in CPR, Coronal Polishing, Nitrous Oxide monitoring and Pit and Fissure Sealant placement. I love spending time with family and friends, going to the movies and also love working with children, meeting new patients and making every visit enjoyable and fun!

Stephanie Vallejo

Dental Assistant

I have been a native of Wharton county all my life and currently reside in Newgulf. I have been a RDA since 2009 and have been with the El Campo Kids Dentistry team for more than 3 years. I have certificates in Prophylaxis and Pit and Fissure Sealants and also hold a Nitrous Monitoring Certification as well as CPR certificate. When I am not fighting sugar bugs, I enjoy spending quality time with my husband and 4 daughters. I am active in my church at Our Lady of Mount Carmel in Wharton. My hobbies are arts and crafts with my girls and the love of music. I am bilingual and love working with children and getting to meet new people.



Leticia Medellin

Dental Assistant

I was born and raised in El Campo, Texas and graduated from El Campo High School in 2010. I attended Dental Assisting Options in Sugarland, Texas.  I have been in the dental field since 2010 and a member of the El Campo Kids Dentistry team since 2013. I am certified in coronal polishing, sealant placement, and nitrous oxide monitoring. I enjoy working with kids and also like being able to translate to Spanish-speaking parents and patients. In my free time, I enjoy going to the movies, park and staying active with my husband and daughter, Sophia.



Maria Corona-Hernandez

Dental Assistant

Maria has been in the dental field since 2016 and joined Columbus Kids Dentistry and El Campo Kids Dentistry in 2017. She is bilingual and enjoys working with children. She loves making them smile and feel comfortable when they are nervous. She is happily married to Michael and two boys, Michael Jr. and Alex. In her free time she likes spending time with her family and from time to time reading a good mystery book. 

Shaun P. Willis, D.M.D.

Owner Dentist

Matthew R. Strepka, D.D.S.

Associate Dentist

Lisa McGlone, D.D.S.

Associate Dentist

Kongyan D. Nicely, D.D.S.

Associate Dentist


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