All professionals at Maranatha Medical Plaza 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.

  • Rosalia Smester Baez

    Mrs. Smester Baez is a Systems Engineer by training and is the visionary behind REM Sleep Centers. She is the CEO of Smester Administrative Services and her efforts have led to the accreditation of our sleep labs by the American Academy of Sleep Medicine.

    She has been recognized on several occasions as a leader in the business world. Most recently, she was awarded Business Woman of the Year by the Women's Business Council of America. Rosalia has been the principal navigator in the expansion of REM Sleep Centers from Georgia into Florida and the Dominican Republic. She is available for meetings and discussion with clients interested in expanding the reach of Sleep Medicine in the Southeast and Latin America.

  • Lori Nelson Morgan
    Administrative Assistant

    I have worked for Maranatha Medical for over 20 years. I started as a Medical Assistant, then worked my way to Billing and Collections and am now Administrative Assistant.

  • Judy Barber

    I have worked for Maranatha Medical since August 2005. I have worked in the medical field for over 20 years.

  • Dee Hauffe, LPN
    for Dr Guarderas

    I have worked at Maranatha Medical since January 2021 and worked under Dr. Juan Guarderas since 2018.

    I have worked in the Allergy field doing Allergy testing and injections for 10 years.

  • Nita Sirmans
    REM Sleep Receptionist/Billing

    I have worked for Maranatha Medical since June 2021.    I am the Receptionist for REM Sleep Diagnostics and Research Center and I also work in the Billing Department.

  • Cindy Peters
    Medical Assistant/Medical Records

    I have worked for Maranatha Medical since October 2020.  I got my Medical Assistant certification during my Airforce career in 1988 to 1999.

    Afterwards I worked as a Phlebotomist for Outpatient Cancer Center, Oncology, Orthopedic, and Telemetry units in Virginia.

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Maranatha Medical Plaza


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-12:30 pm