Management Team

Management Team

Meet our Management team.
Business people smiling in a meeting

Michael F. Hoffman, B.S., RRT, Director, President and CEO

Mr. Hoffman has 40 years of diverse, successful experience in all aspects of the healthcare industry directly related to OBT’s business mission, marketing model, products, services and client relations. His experience is exemplified by success and ability as both a healthcare prof-essional and entrepreneur. His healthcare industry career began with a decade of work as a hospital-based Registered Respiratory Therapist. He worked his way up from staff, supervisory and teaching positions in clinical and intensive care settings, then into hospital administration in major medical centers including Case Western Reserve University Hospitals (1971), The Cleve-land Clinic (1973), Shands (University of Florida) Teaching Hospital of Jacksonville (1975), and Mt. Sinai Medical Center (1979).

Mr. Hoffman gained valuable experience collaborating with biomedical instrument manufacturers in the development and clinical trials of innovative therapeutic and life-support related medical instruments. Throughout his career, he has participated in entrepreneurial ventures and start-ups in healthcare services and durable medical equipment companies (1971-1985), the startup and expansion of a chain of for-profit post-secondary degree-granting healthcare career schools throughout Florida (1979-1990) which were later acquired by a larger entity, and several other successful ventures including serving as Chief Operating Officer of AMTL Corporation marketing the ALCAT test. He left AMTL in 1996 to take a position as OBT’s Business Development Director. He was subsequently promoted to Vice President and Chief Operating Officer (1999) and was again promoted to President and CEO in 2004. He led OBT out of R&D and into the market, reaching profitable operations in 2011.

Fred H. Williams, MD, Gastroenterologist, Medical Director

Dr. Williams is a practicing Board Certified Gastroenterologist and co-owner of Gateway Gastroenterology in St. Louis. He has served as a Medical Advisor to OBT for 10 years. Post-funding Dr. Williams and OBT will expand his role to Medical Director. Dr. Williams is a graduate of Johns Hopkins School of Medicine, and has been awarded and served numerous appointments in his career including Asst. Professor of Medicine, Uniformed Services University of Health Sciences, Bethesda; Asst. Professor of Medicine, University of Texas, San Antonio; Asst. Professor of Medicine, Medical University of South Carolina, Charleston; and Asst. Chairman, Dept. of Gastroenterology, Wilford Hall USAF Medical Center, Lackland AFB, Texas.

Dr. Williams combines integrative medicine and specific alternative therapies with traditional medicine in his progressive practice of gastroenterology, emphasizing an overall wellness approach in addressing medical problems seeking prevention where possible rather than the traditional role of most medical specialists of reacting to disease. He believes sound nutrition and healthy lifestyle therapy are keys to improving all medical conditions. For this reason he has been a user and advocate of OBT’s work since he first tested LEAP in his own practice in 2004. He has assisted OBT in developing lifestyle-based solutions for patients with chronic conditions and symptomology linked to food and chemical-induced inflammation.

Dr. Williams is deeply committed to making LEAP a new evidence-based standard of care for mainstream medicine, and is working with OBT to identify and appoint a dynamic group of mainstream specialist physicians to serve as a guiding Medical Advisory Board in conjunction with OBT’s efforts to create a new, broadly representative Advisory Board in Medical Nutrition Therapy.

Michael A. McLean, Ph.D., Nutrition and Dietetics, (Incoming) Director, Laboratory and Technology

Dr. McLean has over 30 years of broad experience in laboratory technology including serology, chemistry, microbiology and immunohematology. He began his laboratory career working with OBT Founder and Retiring Laboratory Director Dr. Mark J. Pasula in the 1980’s developing the original ALCAT test. He later became the Laboratory Supervisor for AMTL Corp. where he served for five years before joining OBT in 2001. Dr. McLean participated in the development of the MRTTM test while serving as Dr. Pasula’s Laboratory Supervisor. In 2010 he was recruited by Cell Science Systems, Inc. to serve as Laboratory Manager, and to assist in expanding its test offerings into other areas such as serology. He worked in that capacity until 2015 when – seeing the lack of growth and quality controls at CSS – he resigned and took a position with Physicians Lab, Inc. of Boca Raton to serve as its Serology Laboratory Supervisor. Dr. McLean also began developing his own medical nutrition therapy practice, for which he reached out to OBT to become a provider of MRTTM testing.

Dr. McLean currently serves as the transitional Director, pending his sitting for the Laboratory Director examinations for both specialties of Hematology and Serology in the spring of 2017.

When Dr. McLean receives his director’s license, OBT will begin developing its new Serology Laboratory. OBT intends to expand its testing services to include the adjunct testing of IgE food allergy and Celiac Screening which are in high demand among OBT’s service providers. At present OBT’s doctors and dietitians must obtain those tests from another laboratory when needed. This will allow OBT to become a one-stop shop for the core assays often needed for a complete food-immunology profile.

Dr. McLean is also experienced in developing, conducting and publishing research in this area for peer-reviewed journals, another skill set vital to his position and OBT’s business plan.

Mark H. Mirkin, Esq., Chief Legal Officer

Since his graduation from Duke University with a degree in Economics in 1981 and then from Duke Law School in 1984, Mr. Mirkin has spent his entire career practicing corporate and securities law for start­ups and emerging companies, mostly in technology. A large portion of his projects for clients involve venture capital financing. After launching his law career in South Florida in 1984, he returned to the Research Triangle in 2002, which by then had become the east coast hub of entrepreneurship.

Over the course of the next seven years, he spent the bulk of his time representing companies in venture capital financings. In 2009 Mark returned to South Florida for family matters, and soon after was engaged by OBT as outside counsel. Presently, he splits his time between South Florida and the Research Triangle, and now serves as OBT’s Chief Legal Officer on a part-time basis, representing other companies as time allows.

Donna Darrow, Finance Manager

Ms. Darrow has been employed by OBT in the Finance Department since September 2012. She was hired as an assistant to the prior CFO, Robert Souza, handling the daily duties of the finance department in positions of progressive responsibility anticipating his retirement in 2015 after 15 years as OBT’s CFO. She was promoted to Finance Manager in July 2015. Ms. Darrow’s car-eer spans over 25 years’ experience in bookkeeping, accounting, and human resources in positions of progressive responsibility.

Ethan DeMitchell, BBA, Director of Client Services

Mr. DeMitchell has enjoyed over 25 years of success in the laboratory industry sector of food and chemical sensitivity generating sales and managing marketing to physician accounts and other market channels for esoteric testing, allergy testing, and practice needs assessment. He began his laboratory sales and marketing career as Director of Professional Accounts for AMTL Corp. in 1993, marketing the ALCAT test. In 1996 he was recruited by OBT to develop sales, marketing and customer service programs in anticipation of the development of a new and improved whole blood assay.

Since then he has coordinated all test products, services, and proposed services through development and market testing through the final products and services models that were selected and brought to market. He is now preparing for a rapid post-funding expansion of OBT’s sales systems, and a diversified division of duties with which the planned augmented management team will create additional infrastructure in sales, marketing, and recruitment and training programs for a growing, diversified sales force.