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Meet the MEDsan Family


  • Dr. Jonathan Brenner, PhD

    Chief Executive Officer

  • Dr. Dieter Maier, PhD

    Chief Financial Officer

  • J. Maximilian Brenner, BA Eng & Econ

    Chief Operating Officer

  • Chief Legal Officer

    Chief Legal Officer

  • Raymond Lancaster

    Chief Compliance Officer

  • Chief HR Officer


  • Dr. Jaleh Mansouri, MD, MPH, MS

    Chief Laboratory Director

  • Dr. Robert Reppy, DO

    Medical Director

  • Dr. Miguel de la Garza, MD, DABA, DAPM

    Medical Director

    Diplomate of the American Board of Pain Medicine

    Diplomate of the American Board of Anesthesiology

    Dr. Miguel de la Garza is a board-certified physician who practices multidisciplinary interventional pain management in four offices in the Tampa Bay area. He performs interventional pain procedures, specializing in minimally invasive surgical decompression and/or fusion of herniated discs and spinal stenosis, implantable intrathecal pumps, spinal cord stimulation, and peripheral nerve stimulation. Dr. de la Garza has published numerous research papers and abstracts and has presented at regional and national academic conferences. He has lectured on the topics of anesthesia, interventional pain medicine, and addiction both nationally and internationally. He is also a consultant for numerous pharmaceutical and medical device companies.

    He is the President Elect for the Florida Society of Interventional Pain Physicians, having received the service award in first year of being a board member and was awarded Pain Physician of the Year in 2018. He has testified to Florida Medicaid Formulary Committee on the topics of opioid abuse, abuse deterrence and appropriate measures to fight opioid abuse, misuse and diversion; several abuse deterrent molecules became preferred and non-abuse deterrent formulations were eliminated. He provided expert testimony on similar topics to state of Florida House and Senate helped enact laws ensuring parity of ADOs and non ADOs. He has also provided written correspondence to FDA subcommittees on topics of Abuse Deterrent Formulation standards. He is a member of Florida Society for Interventional Pain Physicians and Florida Medical Association Political Action Committee Boards. He is on the education committee which plans and oversees execution of the annual conference with over four hundred and fifty attendees, the largest symposium of it's kind with the state of Florida, and one of the largest in the United States. He has provided numerous lectures for this and other conferences over the last ten years

    He is the chair person for the WCI Workers Compensation Pain Committee, which coordinates and advises organization for a yearly conference with greater than then thousand attendees yearly. He has given lectures on the topics of opioid pharmacology, abuse and addiction treatment, reduction on chronic pain after surgery and will lead a panel on medical cannabis, specialized non opioid treatments including injection treatments, ketamine infusions and how to determine causality for acute, subacute and chronic pain syndromes.

    He is a member of the Florida Medical Association Political Action Committee Board, which oversees a yearly budget of approximately two million dollars. He has provided insight and expertise to the committee on the political climate regarding chronic pain, opioid, and acute pain regulations.

    He is contributing author and editor for pain components of CME course and textbook: "Essential Elements of Personalized Analgesic Medicine." CME course is provided by LP3 Network internationally in United States, Canada and Australia, subsidiary of Medisca International. He a medical advisory board member of Aeon Health Care.

    Dr. de la Garza received a Bachelor of Science in Molecular Biology and a Bachelor of Arts in Chemistry from Texas Lutheran College in Seguin, Texas. He graduated from the University of Texas Southwestern Medical School in 2001 and performed his anesthesia residency at the University of South Florida College of Medicine, Department of Anesthesiology and Critical Care from 2001 to 2005. He then completed an interventional pain medicine fellowship at The Cleveland Clinic, in the Department of Anesthesia and Pain Management, finishing in 2006.

  • Dr. Carlos Roman, PhD

    Laboratory Director

    Carlos Roman, PhD is a Biochemist with degrees (PhD) from Anahuac University, Mexico, and University of Havana, Cuba (BS Biochemistry & MSc Higher Education).

    In addition to obtaining a PhD, Dr. Roman was a Research Professor at the School of Biochemistry and Pharmacy at Catholic University of Cuenca, Ecuador, and the Ethical Consultant at the Catholic Hospital of UCACUE.

    Carlos also was a Professor and Head of the Biochemistry Department and Head of the Bioethics Department and Academic Deputy Director of the Latin American School of Medicine (ELAM). He taught undergraduate and graduate programs in the fields of molecular and cellular biology, bioethices and metabolism at ELAM and Juan M Saracho University in Bolivia.

    Dr. Roman received the National Award of Biological Science, was recognized as young scientist from Medal-Forgers of the Future, was the Article Winner of the 25th Congress of the World Association for Sexual Health.

    He contributed 45 Scientific Articles, wrote 2 Academic books, and was a Key Note Speaker at 54 Scientific Congresses.

  • Dr. Thomas Lewis, PhD

    Laboratory Director

    Thomas J. Lewis, PhD is an Inorganic and Physical Chemist with degrees from (MIT) Massachusetts Institute of Technology and (WPI) Worcester Polytechnic Institute.

    In addition to obtaining a Ph.D., Dr. Lewis' has training from the Harvard School of Public Health in Toxicology, Industrial Hygiene, and a certificate from the University of Massachusetts, Amherst, Massachusetts in Industrial Hygiene. He is a frequent presenter at scientific and medical conferences, and has published scientific papers. Dr. Lewis holds patents (pending) on novel approaches to treating cancer and methods and approaches for treating chronic diseases of aging including Alzheimer's disease and macular degeneration. In addition he has patents pending on a new risk calculator for chronic disease which he has trademarked "chronic disease temperature(tm)."

    Dr. Lewis along with Dr. Trempe publish a 'substantial" book on Alzheimer's disease titled, "The End of Alzheimer's Disease A Differential Diagnosis Toward a Cure." Elsevier Publishing has just released the 2nd edition. In addition, Trempe and Lewis have published a follow-on book titled, "Quarterback Your Own Health - How to Take and Lower Your Chronic Disease Temperature. Memberships: ACS-American Chemical Society; A4M-American Academy of Anti-Aging Medicine; Tau Beta Pi-National Engineering and Science Honor Society.

  • Dr. Victor Osorio-Castillo, PhD

    Laboratory Director

    Victor Osorio-Castillo, PhD is a Biochemist with degrees from Florida International University and Univ. Nacional de San Luis, Argentina.

    In addition to obtaining a Ph.D., Dr Osorio-Castillo was working as a Post-Doctoral Researcher with Dr. Manuel A. Barbieri at Florida International University on Evaluation of phytocompounds as novel anti-cancer drug leads in mammalian cell lines and on in silico screening of proteins and modeling of protein-protein interactions.

    He has an advanced knowledge in molecular cell biology and wet lab techniques.

  • Dr. Leslie Beauvais, PhD

    Leader of Pharmaceutical Production

  • Dr. Birgit Holland

    Leader QM/QC

  • Dr. Theresa Nuguid

    Leader of R&D and RA

Supervisory & Operative Management

  • Alex Hill, BS Biomedical Sciences

    Medical Laboratory Technician (MLT)

  • Christopher Altman, BS Biomedical Sciences

    Medical Laboratory Technician (MLT)

  • Joshua C. Gonzales, BS Biochemistry & Biology

    Medical Laboratory Technician (MLT)

Board of Directors

  • Dr. Jonathan Brenner, PhD


  • Dr. Thomas Wuestefeld, PhD


  • J. Maximilian Brenner


  • Hubertus Fladung


  • Kenneth Morin


  • André Mouton

    Director for Sales & Marketing

    André is a highly accomplished, results-oriented business development executive with international experience in the medical and healthcare field, covering the USA, South-East Asia, the Middle East and Africa.

    Networking with innovative strategies, integrated marketing and operational executions are all part of his proven record of new product launches, cross cultural marketing campaigns, direct line management and managing of diverse teams across medical-, pharmaceutical- and biotech companies.

Supervisory Board

  • Jonathan Gordon

  • Dr. Richard Conlen, MD

  • Dr. David Zamikoff, DC

    Dr. David S. Zamikoff earned his doctorate from Cleveland Chiropractic College in Los Angeles, California. He is currently licensed in Florida and Michigan. Dr. Zamikoff is Board Certified both Nationally and at the State level. Dr. Zamikoff holds certification in operating room protocols and Manipulation Under Anesthesia by the American Academy of Manual and Physical Medicine. Dr. Zamikoff holds a diplomate degree from the American Academy of Trauma Professionals and is the current President of the Florida chapter.

  • Dr. Tom Karson, MD

    Dr. Karon, MD is an experienced Chief Medical Information Officer (CMIO), CIO, Physician Executive.

    Tom holds a B.S. in Chemistry from Harvey Mudd College; a MD from Ross University School of Medicine; did his Internship in Internal Medicine at Harvard Medical School, Brigham & Women's Hospital; his Residency in Internal Medicine at Loyola University Chicago Stritch School of Medicine; Fellow in Advanced Non-Invasive Cardiology, Critical Care Medicine, and Cardiology Rush University; and completed Medical Informatics [Harvard-MIT Program of Health Sciences and Technology (HST)]

  • Dan Gleichowski

    Dan "Mr. Centrum" Gleichowski earned a B.S. in Business Administration & Finance from Western Kentucky University Bowling Green, KY and has a Marketing Certification from Amos Tuck School of Business, Dartmouth, NH.

    Below are some Highlights of his Career:

    • Area Account Manager at
      Lederle / Wyeth / Pfizer Pharmaceuticals Clearwater, FL
    • Area Account Manager – responsible for contracting Wyeth products on formulary of all HMO’s
      on the West Coast of Florida
    • Brand Manager - Centrum Vitamins
    • National Training Manager – responsible for training pharmaceutical reps on Lederle / Wyeth
      pharmaceutical products
    • District Sales Manager – Responsible for hiring, training, directing and motivating pharmaceutical sales representatives.

    Over his Career, Dan developed and implemented high-impact integrated marketing plans that increased sales.

    Developed market specific merchandising and promotional strategies to expand market share.

    Expert in competitive market analysis and qualitative and quantitative research.

    Business-management skills to drive gains in revenue, market share and profit performance.

    Communicate a clear, strategic sales vision, effectively training and coaching team members.

    Cultivate excellent relationships with new prospects and existing customers.

    President’s Golden Circle (2002) & Gold Cup Awards (1972)

    US Army – Lieutenant – Member of the Military Officers Associations of America

  • Cody Lowry

    Entrepreneur…Author…Speaker… Proven Business Executive

    Cody takes on life with a unique perspective, executing bold ideas, making others laugh, and being ever mindful of the little guy. Past divisional President of The Intermark Group, a full-service advertising digital and branding agency located in Birmingham, Alabama Cody is a refreshing change of pace and a welcome addition to any corporate boardroom looking for innovative, realistic, out of the box ideas and solutions.

    Prior to joining the Intermark Group Cody was Founder and President of DynaMedia Of America a full- service advertising agency located in Tampa, Florida. With his instinctive Ritz Carlton-esque commitment to customer service Cody successfully built a multi-million-dollar agency with client retention lasting as long as 30 years.

    Cody holds a marketing and communication degree from the University Of South Florida, but because of his humble and chaotic beginnings, he is most proud of his graduation from what Alan Dershowitz once termed Cody’s diploma from the “The School of Hard Knocks.”

    Cody's book Schmooze is an Amazon #1 Bestseller.