About Us

About Orlando Medical Institute (OMI)

Our educators are all dedicated medical professionals, who are eager to share their knowledge, expertise and collectively aspire to cultivate a respect for the medical field.  They actively work in their profession and maintain personal and professional development.

We have best in class facilities to provide the most realistic simulation training possible. Following are our accredited programs:

  • EMT Training Program
  • Paramedic Training Program
  • A.S. Degree In Emergency Medical Services
  • Continuing Education Programs From:
    • The American Heart Association (AHA)
    • National Association of Emergency Medical Technicians (NAEMT)
    • National Registry of Emergency Medical Technicians (NREMT)

Best In Class Simulation Training

Why Choose Orlando Medical Institute

We are committed to providing high quality training in the field of emergency medical care. We have invested in a state-of-the-art facility to provide the most realistic simulation training possible. Our instructors have real life experience in emergency medical services and draw on their own personal experiences in dealing with medical situations.

Meet The Founder

felix marquez

Felix Marquez, BA, NRP

President & CEO

He is a well-respected veteran in the emergency medical field with over twenty-five years of experience. Mr. Marquez began his career as a Paramedic for the New York City Fire Department (FDNY). He currently serves the great City of Orlando as Certified Paramedic/Firefighter. Mr. Marquez has over twenty years of instructor experience.

Mr. Marquez currently travels the county providing cadaver training to healthcare professional and the United States Military. He has published his research on Flipped Education and is one of the authors for Jones & Bartlett EMT Flipped Classroom. Mr. Marquez brings with him years of education and experience, having served as faculty of La Guardia and Borough of Manhattan Community College in New York City. Mr. Marquez currently serves as the President Elect for the Florida Association of EMS Educators (FAEMSE). He is also a Veteran of the Armed Forces of the United States of America.

Meet Our Board of Directors

abigail marquez

Abigail Marquez

Vice President / Director of Operations

Abigail’s diverse background brings twenty (20) years’ experience in the field of business administration and management. She brings administrative and office management skills to OMI with over ten years experience as a Legal supervisor for a local Law firm and six years in the business administration field. Abigail attended Valencia Community College and the University of Central Florida. She carries a Bachelor’s Degree in Legal Studies and is currently pursuing her Master’s in Business Administration. Abigail has also taken additional courses to enhance her managerial and supervisory skills. She continues to stay informed attending workshops and various seminars.

Meet Our EMS Educators

Michael Hislop AS, ASN, NRP

Paramedic Lead Instructor

Mr. Hislop is currently a full-time educator at Orlando Medical Institute. Mr. Hislop has over 25 years of EMS experience. Mr. Hislop carries ACLS, PALS, AMLS, and PHTLS provider and instructor. Mr. Hislop had many years of teaching paramedics and EMT’s here at Orlando Medical Institute and Lake Tech Community College. Mr. Hislop is a motivated instructor with a true passion for teaching Emergency Medicine in any capacity. Mr. Hislop has recently graduated with his ASN and currently hold he license as a Registered Nurse. Mr. Hislop is a veteran in EMS Education and a unique talent of taking something so complex and breaking it down into simple language which we all can understand.

Chris Wiltz, AA, NRP

EMT/Paramedic Lab Instructor

Chris Wiltz studied Kinesiology and Exercise Science at the University of South Carolina, prior to entering EMS. In 2007 he attended OMI and was the valedictorian of Medic 8. Chris has worked for multiple Fire and EMS agencies in the Central Florida region in the roll of Field Training Officer, EMS Captain, and Preceptor. Chris joined OMI staff late 2010 as a lab instructor. Throughout his time at OMI he has utilized his training and to build and execute some of the most incredible medical and trauma scenarios ever utilized in EMS education. Word of these scenarios spread and in 2014 by way of EMLRC completed a three-month statewide PHTLS mobile training program encompassing over thirty paid and volunteer Fire and EMS departments.  In 2016 he attended the acclaimed University of Maryland- Baltimore Campus and earned his Critical Care Paramedic license, with a focus in aeronautical medicine, neuromuscular blockade and advanced airway management. Chris is currently a Firefighter/Paramedic with Osceola County Fire Rescue.

Marcus Thomas, AS, NRP

EMT Lab Instructor

Marcus is currently a Paramedic/firefighter for the City of Orlando Fire Department. He has been serving his community for over 5 years now. Marcus has been an EMT and Paramedic lab Instructor for Orlando Medical institute for over a year. Marcus enjoys spending time with the students to educate with the knowledge he has experienced over his career.  He has exceeded many expectations at such a young age. Marcus has also obtained many instructor courses which include ACLS, PALS, CPR, & TECC. He is still continuing his education at Orlando Medical Institute & Valencia.

Gary Gratz

Gary Gratz, PMD

EMT / Paramedic Instructor

Mr. Gratz is a 9 years veteran in the fire service. Mr. Gratz is currently a paramedic/firefighter and a Field Training Officer with Lake County Fire Department. Mr. Gratz has helped his EMS chief with the development of an in-house paramedic program. Mr. Gratz has been a paramedic for 9 years and instructor for over 4 years. Mr. Gratz holds provider and instructor certifications in ACLS, PALS, and CPR. Mr. Gratz is very passionate about EMS education and always looking to go an extra mile for his students.

alex klepper

Alex Klepper, PMD

EMT/Paramedic Lead Instructor

Alex Klepper is a Firefighter/Paramedic with 12 years of dedicated experience in the field of Fire and EMS. He is currently proudly employed as a Firefighter/Paramedic with the City of Apopka Fire Department. Over the years Alex has spent his time in multiple positions in the prehospital field of work not only as a provider but also as a field-training officer. Alex brings his wealth of real life experience and education to his student’s day in and day out. As a former student of Orlando Medical Institute, Alex strives to create the best possible experience for his students so they can achieve their goals in this field and beyond.

Meet Our General Educators

Penelope Houk, BS

A.S. Degree Instructor

In August of 2009 she graduated with a Bachelor’s of Science in Communications and Humanities from Florida State University. She is currently enrolled in Florida International University to fulfill requirements needed to apply to Medical school, while taking time to study for the MCATs. Ms. Houk is also currently teaching an online Humanities class for the Associates of Science in EMS programs.

Gabrielle Powers, MS

A.S. Degree Instructor

Gabrielle Powers is currently a professor in the studies of mathematics and Chemistry. Ms. Powers also has a bachelor’s degree in Mathematics from FIU and a Master’s in education, specializing in Chemistry. She also spends her days teaching high schoolers, College Algebra and Chemistry.

Joshua Cantor

A.S. Degree Instructor

Mr. Cantor holds her Master’s Degree in Psychology from the University of South Florida. Mr. Cantor received her B.S. Psychology from the University of Florida with a minor in sociology. Mr. Cantor brings to his classroom and professional work environment an eclectic education and a zealous commitment to excellence in all his endeavors.

Soraya Acosta, BS

A.S. Degree Instructor

Ms. Acosta holds her Bachelor of Science in Education, specializing in Language Arts from Nova Southeastern University. Ms. Acosta also helps other schools with their online educational courses. She sincerely loves being an educator. Ms. Acosta is also currently teaching an online English class for the Associates of Science in EMS programs.

Meet Our Coordinators

monica alvarez

Monica Mullgrav-Alvarez

Student Services Coordinator


Rosa Gonzales

Student Services Coordinator

rosario millan

Rosario Millan

Front Office Coordinator

OMI Memberships

  • National Association of Emergency Medical Services Educators (NAEMSE)
  • National Association of Emergency Medical Technicians (NAEMT)
  • Florida Association of Emergency Medical Services Educators (FAEMSE)
  • National League of Nursing (NLN)
  • Library and Information Resources Network (LIRN)
  • American Heart Association (AHA)
  • Florida Association of Postsecondary School & Colleges (FAPSC)
  • National Association of Emergency Medical Technicians (NAEMT)
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