Medical Assistants

  • Jazmine Paredez

    Medical Assistant to Dr. Frank

  • Isabel Muniz
    - Medical Assistant

    Isabel joined the PHA team in November 2018 as a Front Desk Associate, she was promoted to our Medical Assistant team in the summer of 2019, working along side Dr. Kessinger until his retirement.  She has been assisting Dr. Valliere in clinic since January 2020, she is also a certified x-ray technician.

    When she is not in in the clinic she treasures her time with her family, especially her daughter Liliana. Isabel is passionate about her Starbucks, NASA and catching movies with her family. She is also a #1 soccer & softball fan...cheering at Lili games.

  • Rosa Avila

    Medical Assistant for Ryan Solt, NP

  • Kristina Zulpo
    - Medical Assistant

    Kristina joined the PHA Team in November 2020, she is the Medical Assistant for Dr. Menchaca and a certified  x-ray technician.

    Kristina is a born and raised Texan from Houston, she and her family moved to the McKinney in 2016.  She enjoys taking her 2 year old Yorki Zeke on walks, shopping with her sister, getting pampered at the nail salon. Kristina tries to spend her weekends with her family & attending church. 

  • Shelbie twiss
    - Medical Assistant

    Medical Assistant to Dr. Bonnet

Location & Directions

Office Hours

Monday - Friday:

8:00 am - 5:00 pm


8:00AM - 12:00PM (Potential to close early- hours based on patient volume)