Dental Staff

All professionals at Marbach Dental 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.

  • Diane Trinidad,

    Dr. Diane Trinidad was born and raised in San Antonio, Texas.  She graduated from University of Texas in Austin with a Bachelors of Arts degree, then continued her education at Baylor College of Medicine.  She was awarded her D.D.S. in 1992.  Dr. Trinidad opened her practice on De Zavala shortly after graduating and has been practicing for over 25 years.  She is especially interested in sports related dentistry and orthodontics.  Dr. Trinidad is married and is a proud mother of two children and two New Foundland pups! She loves to watch her son, who plays football for                                                          Abilene Christian University and her daughter, who plays volleyball for University of Kansas In Lawrence

  • Dr.

    Dr. Vaughan received her undergraduate degree from Texas A&M University. She attended dental school at the University of Texas Health Science Center in San Antonio. After graduation from dental school, she completed a two year hospital based residency in general dentistry. Upon completion of her residency, Dr. Vaughan taught at the dental school in both the graduate and undergraduate general dentistry programs. Following her tenure in academics, she has enjoyed practicing dentistry in the San Antonio community. Dr. Vaughan is a member of the American Dental Association, the Texas Dental Association, and the San Antonio District Dental Society.

  • Deby Williams,
    R.D.H. - Office Manager

    Deby Williams, R.D.H./Office Manager, graduated from the University of Texas Health Science Center of San Antonio in 1998.  She has been practicing dental hygiene ever since.  Deby is married and has three children.  She loves spending time with her three beautiful grandchildren.  Deby enjoys fishing and gardening.

  • Melissa Renteria,
    R.D.A. - Treatment Coordinator

    Melissa Renteria, R.D.A./Treatment Coordinator, has been in the dental field for 13 years. Her favorite part of her job is working with people. She has 3 kids and 2 grandbabies. She loves spending time with her grandbabies and volunteering at her church. 

  • Irene Juarez,

    Irene Juarez, R.D.H., graduated with Bachelor's Degree in Dental Hygiene from UT Health Science Center at San Antonio in 2010 and has some experience as a dental assistant. Irene is passionate about helping her patients achieve optimal oral health and is very thorough in her work. She values quality time with her family and enjoys traveling abroad. Irene is a proud military spouse, veteran, and soccer mom!   

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8:00 am-4:30 pm


8:00 am-4:30 pm


8:00 am-12:00 pm


8:00 am-2:00 pm