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EMT/Paramedic Faculty

Chris Thompson

EMS Education Program Director
Chris has over 20 years of combined EMS experience including rural 911 EMS, Methodist Hospital ED, and Parkland Hospital ED.  He has also worked for over 15 years in the Biotel Medical System. 
He has been in EMS Education for over 10 years serving has a primary paramedic instructor at UT Southwestern Medical Center, Trinity Valley Community College, and most recently El Centro Community College.
Along with being a TDSHS Paramedic, he is an ACLS and BLS Instructor, PEPP Instructor, and ITLS Instructor. 
Chris graduated from the University of North Texas with a Bachelor of Applied/Arts in Science, graduating Cum Laude. 
He and his wife Angelia reside in Edgewood, Texas where they have two sons, Colten and Llogan. 

Dr. Gilberto A. Salazar

Medical Director
Dr. Gilberto A. Salazar, M.D. is a board certified emergency physician and educator, originally from Dallas, Texas he began his clinical career as a high school volunteer at Parkland. He pursued a pre-med career at Vanderbilt University and then worked for a year as a neurotechnologist in West Palm Beach, Florida.
Life took him to University of Texas in Houston, where he earned his medical degree, and then went to Louisiana to complete an emergency medicine residency at Louisiana State University in Baton Rouge. During his residency training in Baton Rouge, he ventured outside of the emergency department and into an ambulance. Being involved with East Baton Rouge Parish Emergency Medical Services (EMS) was refreshing and revealing to him.
Dr. Salazar decided to continue his training in EMS, and moved back home to Dallas, where he spent two years as a fellow completing his Government Emergency Medical Security Services fellowship for Division of Emergency Medicine, Section on Emergency Medical Services at UT Southwestern Medical Center (UTSW).
After the fellowship, Dr. Salazar joined the Division of Emergency Medicine as a faculty and works as an emergency medicine physician at Parkland Memorial Hospital, after the position was offered to him by Dr. Paul E. Pepe, which he proudly accepted.
Currently, he is involved with the UTSW Emergency Medicine Education Program and serves as the medical director to teach both initial and continuing the Emergency Medicine Education for emergency medical technician and paramedic, which trains the vast majority for EMS providers in the Dallas County. In addition, he serves as the medical director for Observation Unit at Parkland Health and Hospital System Emergency Department, the observation unit is where Parkland augments the care of patients who are admitted and need several hours’ observation at emergency department.
While at Parkland Health and Hospital System, Dr. Salazar serves as medical director for the Dallas/BioTel EMS System, Emergency Medical Services, Fire Department and Public Safety Agencies for the Cities of Farmers Branch and Richardson. In addition has serve for yeas as medical manager for Federal Emergency Management Agency (FEMA) Texas Task Force Two Urban Search and Rescue Operations, Task Force Strike Team, National Center for Emergency Disaster Response and Preparedness and the medical specialist for Urban Search and Rescue Operations.
In recent years, Dr. Salazar has been a leader in the Emergency Medical Services Fellowship Program Committee to provide didactic, simulation, and practical education for the fellows, participate in program improvement, and provide mentorship in education, medical practice, quality assurance and research in Emergency Medical Services.
Dr. Salazar was recently nominated for Regents’ Outstanding Teaching Award at UT Southwestern Medical Center and received the Faculty Teaching Excellence Award from Division of Emergency Medicine.
His most recent adventure takes place inside the American Airlines Center in Dallas, where he serves as one of the team physicians for the NHL Dallas Stars, as well as other events requiring medical oversight.


Greg Winters, MPA, NRP, EP-C

Paramedic Program Coordinator
Greg has over 30 years of public safety and healthcare experience ranging from hospital to pre­hospital patient care, air medical transport, EMS management, tactical medicine, critical care transport, firefighting, and law enforcement. Greg started his medical career as a Health Occupations student in high school and soon began to work in a busy, aggressive 911system. He soon promoted to EMS field Supervisor. After being bitten by the flying bug, Greg worked as a flight paramedic for nearly 20 years on both fixed and rotor wing platforms. He also worked as a peace officer and tactical medic for SWAT.

Greg has been in full time EMS Education for over 10 years, has taught clinical education for over 25 years, and has a passion for student success. His goal is to bring practical, real world application to the classroom. He started teaching as an adjunct for Amarillo College in 1988 and continued to teach in a variety of clinical settings. He was the Clinical Education Coordinator for San Antonio AirLife and taught numerous outreach courses in the South Texas area. He created and coordinated the Night Out With San Antonio AirLife (NOWSA) which offered a variety of EMS CE topics for regional EMS agencies. He transitioned to full time teaching in 2009 with UT Southwestern where he was an Assistant Professor and Course Coordinator for the paramedic program. While at UTSW, Greg created and developed the Transport Certification Exam Review (TraCER) course in partnership with the International Association of Flight and Critical Care Paramedics (IAFCCP) and the Flight and Critical Care Transport Nurses association. This course is a two day prep for the Certified Flight Paramedic (FP-C), Certified Flight RN (CFRN), Certified Tranport RN (CTRN), and Certified Critical Care Paramedic (CCP­C). This course has been taught all over the United States, in Germany, and Saudi Arabia.

Greg has an AAS in Paramedicine Technology, a BAAS in Emergency Management Administration, a Master's Degree in Public Administration, and is currently completing a PhD in Health Psychology. He is a NREMT Paramedic, Certified Flight Paramedic, ALCS and BCLS Instructor, PEPP Instructor, and ITLS Instructor.

Greg and his wife, Theresa, have one son, Duncan, who is active in church, marching band, and Boy Scouts of America. Greg has served as a Scoutmaster and teaches CPR, the First Aid, Emergency Preparedness, and Safety merit badges to Scouts and Scouters.

Sheila Elliott, BS, LP,

EMT Paramedic Program Coordinator

Sheila has a Bachelors of Science Degree in Education from Texas Tech and has worked in EMS/EMS Education since 2006. She has a diverse clinical background with experience in rural 911 EMS, hospital ER, Organ Transplant and EMS Administration. Sheila's certifications include EMS Instructor, BLS Instructor, ACLS Instructor, and is a Licensed Paramedic.

Sheila has been married to her husband, Jason since 1993 and has 3 boys. One of Sheila's twins was born with a severe heart defect, requiring 5 open-heart surgeries. Sheila and Colby are very active with the American Heart Association as they help raise awareness about heart defects as they share their story through presentations and videos that been shown to over 50k schoolsacross the nation. Sheila has a passion for teaching and for helping others learn to be successful in EMS.

Alexander L. Flores MBA, MS, LP

EMS Education Faculty
Alexander has worked in the EMS industry for over 10 years and is a Licensed Paramedic. He has worked in varied settings, from first responder organizations to a metropolitan 911service. Alexander has been certified as a Health Education Specialist and has provided health and wellness coaching to a diverse population in the health insurance setting.

Alexander holds a Bachelor of Science degree in Health from Texas A&M University, a Master of Science degree in Health Education from Texas A&M University, a Master of Business Administration degree from Texas Woman's University. Alexander is completing therequirements towards a doctoral degree.

Alexander enjoys volunteering his time and supporting the Leukemia and Lymphoma Society of North Texas. He is active with hobbies such as kayaking, biking, rock climbing, hiking, and sailing.

Paul L. Rosenberger EdD, NRP

EMS Education Faculty
Paul has over 31 years of combined EMS experience including urban and suburban 911 EMS and aeromedical transport. Austin, Arlington and the MedStar member cities (including Fort Worth) have formed a robust foundation for the 911 EMS experience. Central Alabama (Montgomery) is the location for the aeromedical transport experience.    
He has been in EMS Education for over 22 years and has instructed at UT Southwestern Medical Center, Tarrant County College, Baylor Medical Center at Grapevine (continuing education topics) and most recently El Centro Community College.
Along with being a TDSHS Paramedic, he is an ACLS and BLS Instructor, PEPP Instructor, and ITLS Instructor. 
Paul graduated from Auburn University at Montgomery with a Bachelor Degree is Political Science, University of North Texas with a Master of Public Administration, and Northcentral University with a Doctorate of Education.   
Paul regularly teaches the Regional Scenario Development Workshops hosted by NREMT and NAEMSE. Additionally, Paul is an instructor for the NAEMSE Evaluating Student Competency workshops hosted by NAEMSE and is a common panelist and a review author for the UCLA Prehospital Care Research Forum.    
He and his wife reside in Denton County, TX and they have a daughter.  

Matthew Armand Nash PhD

EMS Education Faculty
Prior to coming to El Centro Matthew was involved in humanitarian service between 2000 and 2010. At this point he transitioned to EMS working both in the field and in EMS education. Much of Matthew's field experience was with Medstar Mobile Healthcare where he served as a Licensed Paramedic, a Clinical Educator, a Field Supervisor, and a Disaster Response Supervisor with Medstar and the state of Texas.

Matthew completed his Bachelors of Music Education at TCU, a Masters of Arts in Government from Regent University, and a PhD in Public Policy and Administration from Walden University.

Matthew is married to Christine and they have three sons; Andrew, Evan, and David.
For details about graduation rates, program costs and other important information, view the gainful employment disclosure.