Our Leadership Team

Our highly experienced, credentialed staff has a passion for excellence and a commitment to improving the lives of those suffering from behavioral health disorders. We have licensed social workers, psychiatrists and other mental health professionals on staff. The senior management at the Behavioral Health Hospital of Bellaire makes sure we provide the highest level of excellence in care for all of our inpatient and outpatient programs.

Amanda Tejeda-Blanco, CEO

Amanda started her career with UHS as a Mental Health Technician over 10 years ago. She has worked at several facilities and has held several roles including Case Manager, Group Facilitator, Director of Utilization Management and Case Management, Director of Risk Management and Performance Improvement, Chief Compliance Officer, Chief Operating officer, and Chief Executive Officer. In her tenure with UHS, she has successfully driven initiatives to convert a facility to seclusion free and started clinical trials on acute schizophrenic patients through MERCK, a research organization.

Amanda received her Bachelor’s degree and Master’s in Health Administration from Florida Atlantic University. She also earned a Healthcare Risk Management Certification from the University of Florida and is a member of the American College of Healthcare Executives.

Cheryl Grenas, CNO

Cheryl Grenas is a highly skilled Nursing Professional with qualifications and expertise in providing high quality nursing care and unparalleled patient service.
Cheryl served in the United States Navy for 20 years, achieved the rank of Lieutenant Commander, and is a veteran of 2 deployments in support of Operation Iraqi Freedom (2005) and Operation Enduring Freedom (2011). She was awarded two Navy Commendation Medals and four Navy Achievement Medals during her service.

Cheryl has extensive executive-level experience in the acute and behavioral hospital settings as well as free-standing Emergency Departments. Cheryl has expertise in ensuring compliance with state and federal regulations, acquiring DNV and JC certifications.

Luis Nunez, Director of Business Development

Luis Nunez, MBA, joined the Behavioral Hospital of Bellaire in October 2022 where he is responsible for managing the hospital’s strategic marketing plan and leading all sales and business development efforts. He brings over 17 years of healthcare sales, marketing and leadership experience to the role.

Luis earned his Bachelor of Arts in Spanish Literature from California State University, Fullerton and his Master of Business Administration from the University of La Verne.

During his free time, Luis enjoys traveling with his wife and attending their two boys’ sporting events.

Arlet Olivares, MSW, LCSW-S, Clinical Program Director

Arlet Olivares, MSW, LCSW-S joined Behavioral Hospital of Bellaire in November 2022 as a Director of Clinical Services and is responsible for oversight of a team of Mental Health Therapists. She became part of UHS family in 2014 in El Paso, TX as a Program Therapist. Arlet brings 13 years’ experience in social services, working with children and families, having served as a Clinician, Director, and as an independent practitioner in her private practice.

Arlet earned her Master of Social Work from the University of Southern California in 2015 and is currently obtaining a Doctor of Social Work degree from Walden University. Arlet was born and raised in Southern California and her hobbies include cooking and spending time with family.