MCR Team

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H. Joseph Cardenas, BS, CCRC
President & CEO
Founded MCR 2006

Mr. Cardenas has been in the Healthcare field since 1983 and began his clinical research career in 1992. His extensive experience includes: Director of Clinical Operations, Site Manager, Project Manager, Senior Clinical Research Associate, Validated Single-Site Acne Rater and Certified Clinical Research Coordinator. His focus and experience is in Phase II – IV clinical trials in a variety of therapeutic areas. With over 20 years of research experience, and having worked on both the clinical and pharmaceutical side of research, he has developed a well-rounded approach to conducting clinical trials, frequently exceeding industry demands.

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Jeffrey Smyth, MS, CCRP
VP/Chief Operating Officer
Joined MCR 2011

Mr. Smyth has worked in the healthcare industry since 1985. He holds a Master’s degree in Healthcare Management and is committed to providing quality care and outcome. He believes that communication and education are the keys to effectively managing an organization.  Mr. Smyth’s research experience began in 2011. In the role of VP/COO, Mr. Smyth’s goals are to provide all sponsors, patients and employees of MCR with the highest level of service and satisfaction. His responsibilities include business development opportunities, pre-site selection correspondence, contract and budgetary negotiations as well as administrative oversight of MCRs research clinics.

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Tracy De Rogatis, BS
Business Operations Manager
Joined MCR 2013

Tracy has an extensive background in marketing, sales and management that spans across various industries. A graduate of the University of South Florida, she holds a Bachelor’s degree in Mass Communications/Advertising and an Associate’s degree in Business Management.  Tracy manages the marketing and advertising campaigns including the creative processes, company branding, social media and website platforms for MCR. Tracy oversees all recruitment campaigns, event planning, accounts receivable records, as well as all Human Resource functions for the company.

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Olga Hernandez, BS
Business Finance Manager
Joined MCR 2009

Olga holds a Bachelor of Science in Business and manages the day to day accounting and financial aspects of MCR as well as implementing several cost saving initiatives. She prepares monthly and quarterly financial reports to support compliance in accounts payable and receivable, as well as performing reconciliation and auditing activities to ensure company financial objectives are met.

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Susan M. Barker, MD
Principal Investigator
Board Certified Dermatologist
Joined MCR 2006

Dr. Barker is a Board Certified Dermatologist and a graduate of The University of South Florida School of Medicine, completing her dermatology residency at the Mayo Clinic. Dr. Barker’s experience as a clinical investigator started in 1998. She has provided oversight and direction in well over 100 clinical trials in her career and provides insight into clinical trials, education and training to the site staff, establishes new relationships with sponsors and physicians interested in research, mentors new investigators, and has been pivotal in the development and direction of success of single site large dermatological clinical trials.

Reinhard Rott, MD FACS
Clinical Investigator/Medical Director
Joined MCR 2016

Dr. Rott is a Board Certified Surgeon with over twenty years of clinical experience in surgery, surgical oncology, cosmetic procedures, as well as internal medicine and urgent care. Dr. Rott’s research career extends back to his studies at Rutgers University where he earned an Honors in Research, as well as practicing as a Research Assistant. He holds a Bachelors of Physiology from Rutgers University, a medical degree from the University of Medicine and Dentistry of New Jersey and completing surgical internship and residency at the University of South Florida. Additionally, Dr. Rott holds a Master of Science degree in Business Administration and is fluent in German and Spanish. Currently, Dr. Rott serves as clinical investigator and medical director at MCR providing oversight, education and professional medical expertise to our standard operating procedures and internal processes, as well as conducting study related activities and working closely with our research team.

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Reginold Simmons, MD
Clinical Investigator
Joined MCR 2014


Dr. Simmons comes to the MCR team with vast experience as a medical doctor having previously owned a private Family and OB/GYN practice. Dr. Simmons also served as a Clinic Medical Director, ER Physician, Research Chemist and the Chief Health Officer for the Dept. of Corrections prior to opening his own practice. He graduated from Temple University Medical School and has been practicing medicine for 40 years. Dr. Simmons serves as the MCR Physician Investigator interacting heavily with patients in the clinic, conducting protocol related activities and working closely with our staff of research professionals.

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Jennifer Ksaibati, ARNP
Clinical Investigator
Joined MCR 2015

Jennifer is a Certified Family Nurse Practitioner with a Master of Science Degree in Nursing from the University of South Florida. She has many years of experience in the Nursing field working in a variety of medical settings and specializations. Her nursing experience crosses over from Telemetry to Critical Care, Hospice, Family Medicine and Research. Jennifer is also an Adjunct Clinical Instructor at Galen College of Nursing. Jennifer works very closely with patients and doctors to ensure the safety and efficacy of every clinical study.

Janel Mayer, ARNP
Clinical Investigator
Joined MCR 2017

Janel is a Certified Nurse Practitioner and holds a Master of Science Degree in Nursing from Chamberlain College of Nursing and a Bachelor of Science in Nursing from Pennsylvania College of Technology. Her experience covers many different aspects of nursing from rehab and chiropractic care to critical care to primary care and she has gained experience in working in hospitals, independent clinics and also in a mobile nursing unit.

In working with our patients, Janel uses her experience and expertise to ensure the safety and efficacy of every clinical study.

Heather Arena, ARNP
Clinical Investigator
Joined MCR 2017

As a Dermatology Certified Nurse Practitioner, Heather holds both a Master of Science Degree and a Bachelor of Science Degree in Nursing from Rutgers University. Heather’s experience lies heavily in the dermatology field, in not only seeing patients and performing daily procedures, but also assisting in surgery, facilitating nurse practitioner student education and managing an ambulatory surgery center.

Heather works very closely with patients and doctors here at MCR to ensure that every clinical study follows a strict safety and efficacy protocol.

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Michael Bland, BS, CCRP
Director of Research
Joined MCR 2013


A graduate of the University of South Florida, Michael holds a Bachelor of Science degree in Business Administration. Michael started his research career in 2013 as a Research Assistant and then quickly moving up to Research Coordinator and to Director. His motivation and initiative have been pivotal to his success in learning all aspects of the research process. Michael manages and supports the daily operations within our three Tampa Bay clinics. He works closely with our clinical investigators and other research team members in ensuring quality, efficiency and regulatory adherence.

 linkedinJared Myerly, BS, CCRP
Site Manager, North Tampa Clinic
Joined MCR 2015


A graduate of Clearwater Christian College in Florida, Jared holds a Bachelor of Science degree in Biology. Jared started his research career in 2011 as a Research Coordinator and is well experienced in all phases of clinical trials. His areas of experience include Dermatology, Cosmetics, Devices and Internal Medicine studies. Jared manages the daily operations of our North & South Tampa Clinics where he works closely with our clinical investigators and other research team members in ensuring research quality. Jared is also fluent in Spanish and is a Certified Clinical Research Professional.

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Judy Keene, CCRC, CCRP
Site Manager, Brandon Clinic
Joined MCR 2011


Judy has over twenty years of research experience, participating in over 100 Phase I-IV clinical trials. Judy has held positions such as Research Assistant, Screening Supervisor, Site Coordinator and Senior Site Coordinator. Judy’s wealth of research experience helps support the daily operations within our Brandon Clinic. She effectively supports our clinical investigators and is a Certified Clinical Research Coordinator and Certified Clinical Research Professional.

Theresa Lopez, CCMA
Assistant Site Manager, South Tampa Clinic
Joined MCR 2014


Theresa, a Certified Medical Assistant and assists the Site Manager in the daily operations at our South Tampa Clinic in all clinical research coordinator functions and responsibilities as well as working with Sponsors, study monitors and auditors. She supervises the clinical research team and supports our clinical investigators in the study protocols we participate in with a strong focus on the safety and well-being of our patients.

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Cindy Tilley
Assistant Site Manager, Brandon Clinic
Joined MCR 2012


Cindy holds an Associate Science Physical Therapy Assistant degree from Central Michigan University. She started her research career in 2012 and has continued to grow as a dedicated research professional. Cindy assists in the daily operations within the Brandon Clinic supporting the Site Manager in all clinical research coordinator functions and responsibilities. She works closely with our clinical investigators to ensure the safety and well-being of our patients.

 linkedinLaura Causey
Research Assistant/Recruiter, North Tampa Clinic
Joined MCR 2006

With over sixteen years of research experience, Laura assists in the daily operations at our North Tampa Clinic. Laura’s research experience includes Project Manager, Clinical Research Coordinator, Recruiting Supervisor. She has extensive experience in all levels of the research process including protocol development, recruitment, screening, a validated acne rater, as well as quality assurance and quality control processes. Laura is committed to the safety of our patients and to the quality of our data.

Johanna Castellanos, RMA
Research Coordinator, South Tampa Clinic
Joined MCR 2014


Johanna is a Registered Medical Assistant with several years of medical and research experience. She previously held a Research Assistant position and currently supports and coordinates the research activities at our South Tampa Clinic. Johanna is bilingual in English and Spanish.

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Nicole Tilley, CCMA
Research Assistant
Joined MCR 2013
Brandon Clinic

Lizzy Werner
Recruitment Coordinator
Joined MCR 2012
Brandon Clinic

Lina Leuro
Administrative Assistant
Joined MCR 2016
Brandon Clinic

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Ronny Micheletti
Recruitment Coordinator
Joined MCR 2016
Brandon Clinic

Brandon Clinic

1104 Kyle Wood Lane
Brandon, FL 33511
Phone: (813) 948-7550
Fax: (813) 948-7566
Click For Directions

South Tampa Clinic

4257 W. Kennedy Blvd.,
Tampa, FL 33609
Phone: (813) 948-7550
Fax: (813) 948-7566
Click For Directions

North Tampa Clinic

16622 N. Dale Mabry Hwy.,
Tampa, FL 33618
Phone: (813) 948-7550
Fax: (813) 948-7566
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