BioTech Institute Professional Staff Jonathan E. Walker, M.D. Specialty: Neurology Medical Consulant: BioTech Institute -- Texas Associate Professor of Neurology, University of Texas Health Science Center Board Certified in Neurology Charles F. Smith, M.D. Specialty: Occupational Medicine Toxicology Medical Consultant: BioTech Institute--California Harvey A. Loomstein, Ph.D. Specialty: Behavioral Medical, Neurosciences Clinical Director: BioTech Institute Diplomate: American Board of Vocational Neuropsychology American Board of Pain Management American Academy of BioMechanical Trauma International Academy of Behavioral Medicine American Board of Examiners in Clinical Social Work Return to home page