Healthcare / Medical Peer Review Expert Witnesses: 6

Robert B. Prehn, MD, has been a Board-Certified Otolaryngologist / Head and Neck Surgeon for over 30 years. His practice is in the field of general Otolaryngology, with extensive experience covering the full spectrum of his field. He was a founding partner of a large single specialty clinic in South Central Wisconsin, fostering profound growth in provider coverage as well as creating an extensive network of referrals for what has become one of the largest Otolaryngology practices in Wisconsin. An early adopter of new technology, he and his have leveraged these tools into an efficient and thriving practice which employs over 80 people.

Dr. Prehn has extensive experience in Medical Administration, including serving as Chief of Staff at Aurora Hospital in Oshkosh, Wisconsin. He has also served as Chairman of Peer Review for all of the Aurora Hospitals in Wisconsin, adjudicating issues dealing with medical complications, malpractice, and physician behavior..

Litigation Support - Dr. Prehn provides expert testimony to Medical Arbitration Boards in cases of suspected malpractice, and to attorneys for both plaintiff and defendant. His services include IMEs, thorough medical review, deposition, and trial testimony as needed.

Areas of Expertise:

Wayne H. Grant, PharmD, is a Clinical Pharmacist with over 30 years of pharmacy experience working in or within various practice settings—retail, long-term care, home infusion, sterile products, corrections, hospice, specialty, and hospitals.  

Dr. Grant has prepared and delivered educational programs to physicians, nurses, and other healthcare professionals based on his extensive experience in multiple disease states. Programs include topics such as Pain Management, COPD, and Motor Neuron Diseases.

Serving as an integral member of multiple pharmacy and therapeutics committees, he has promoted evidence-based interventions while driving quality initiatives and building a highly collaborative consortium among healthcare professionals.  

Earning his Doctor of Pharmacy from the University of Florida, his Master of Business Administration for Kent State University, and his Bachelor of Science from Ohio Northern University highlights Dr. Grant's drive for education, understanding, and application of pharmacy services.  

Dr. Wayne Grant on Consulting with Attorneys

Litigation Support - Dr. Grant is an expert in pharmacy practice. His expertise in long-term, institutional, infusion, and retail practice allow for an extensive understanding of the various pharmacy sectors. He is responsible for pharmacotherapeutic management, medication safety and efficacy and drug information all which follow federal, state, and local laws. He has provided a variety of expert witness services on behalf of legal professionals, including attorney consultation, case review, case opinion, and written case opinion. 

Areas of Medication Expertise:

View Dr. Grant's Consulting Profile.

James H. Reich, MD, MPH, is a board-certified Forensic Psychiatrist with extensive civil psychiatry experience who has done hundreds of evaluations.

After getting his MD from the University of Colorado Medical Center in Denver, Dr. Reich earned his MPH at Yale University and did his psychiatric residency at UC Davis. Dr. Reich has held academic positions at Yale, Iowa, Harvard, and Brown Universities.  Currently, he has teaching appointments at the professor level at both UCSF and Stanford University. Throughout his career, he has published over a hundred peer-reviewed publications. 

Litigation Support - Dr. Reich’s services are available for civil and some criminal law cases. Clients are assured of his personal dedication to each case. He does high quality research, expert evaluations, writes a solid report, and will testify well. Dr. Reich has been deposed over 50 times.

Areas of Expertise:

Presentations - As faculty at the Stanford Forensic Fellowship program, Dr. Reich has given two talks to the group. On October 27, 2023, he presented, "What Gets Psychiatrists and other Medical Professionals into Problems with the Law or Regulators." On January 19, 2024, he presented a talk on Psychiatric Disability to the same group. Dr. Reich is also supervising a fellow on his project on competency issues in older physicians.

Dr. Robert Evans, PhD,  is a Licensed School Psychologist with over 30 years of experience in the behavioral sciences, including completing over 100 Child Custody Evaluations. Dr. Evans serves as a consultant to the medical, legal, and law enforcement community in Florida on Psychological and Educational matters. He consulted with Orange County Public Defender with cases involving arrest and incarceration of children, including Competency Assessments and Insanity Determinations. He has also provided Critical Incident Stress Debriefings to victims of crime in the Central Florida area. 

Litigation Support - Dr. Evans specializes in Parental Alienation cases which are commonly among those classified as High Conflict Divorce cases and he has written a book on Parental Alienation. He provides litigation support to counsel for both Plaintiff and Defense. His services include support with hearing / trial preparations, review of current evaluations, and support during and after the litigation process. 

Dr. Evans has given sworn testimony as a Forensic Psychology expert witness in NY, IL, PA, GA, FL, IA, ID, CO, OH, TX, TN, LA, MA, MD, MO, NC, SC, WA, and OR. 

Areas of Expertise:

• Parental Alienation
• Child Custody Evaluations
• False Allegations of Abuse
• Treatment Considerations for Alienated Children

Thomas J. Zaydon, MD, FACS,  is a Board Certified Plastic Surgeon with over 30 years of experience.. Dr. Zaydon is the founder of The Plastic Surgery Institute of Miami and is a recognized authority on Plastic and Reconstructive Surgery. During his tenure, he continues to work in the emergency room, providing surgical evaluations and performing procedures on patients who need traumatic care.

Dr. Zaydon is certified by the American Board of Plastic Surgery, is a member of the American Society of Plastic Surgeons, and a Fellow of the American College of Surgeons. He has authored numerous articles and chapters on various aspects of plastic surgery. 

Litigation Support - Dr. Zaydon serves as a plastic surgery expert witness on liability cases around the country. He has had the opportunity to work both with defense and plaintiff attorneys. He is a certified expert witness in the field of plastic surgery for the State of Florida. He works for both plaintiff and defense attorneys.

Dr. Zaydon can provide factual synthesis regarding plastic surgery management. As part of his expertise, he navigates medical records and understands procedural terminology. On request, he has prepared numerous comprehensive plastic surgery examinations in conjunction with depositions, trial testimony, and legal documents.

Video: Plastic Surgeon As Expert Witness: How to Choose Your Expert Witness - A Guide for Lawyers

Areas of Expertise:

Continental Who’s Who 

Executive Press Release

WILLEAM A. CHOBY, DMD - DENTIST. FOUNDER

Greensburg, PA - Prominently featured in Continental Who's Who, Willeam A. Choby, DMD is acknowledged as 2025 Dentist of the Year for his contributions to Dentistry.

Dr. Willeam A. Choby,  a renowned dental professional in implant dental surgery and reconstruction of the teeth continues to make significant strides in the field of dentistry. With a career dedicated to advancing oral health, Dr. Choby is integrating his extensive clinical expertise with innovative public health principles to improve patient outcomes and community well-being.

Dr. Choby received his Bachelor’s degree and Dental Medicine Doctor (DMD) from the University of Pittsburgh, followed by General Practice residency and appointment as Chief Dental Resident at Brookdale Hospital Medical Center in Brooklyn New York. He also earned a continuing education degree of Masters of the Academy of General Dentistry (MAGD) Complementing his dental credentials, he holds a Master of Public Administration (MPA), which enhances his ability to address oral health challenges through a public health lens. His master’s thesis “Licensure and the Dental Market” from Virginia Tech continues to stimulate the dialogue in the various state boards of dentistry.

Dr. Choby is an active member of the International Congress of Oral Implantologists (ICOI) where he earned a Diplomate degree (DICOI) and a Fellow in the International College of Cranio-Mandibular Orthopedics (FICCMO).

Dr. Choby is frequently called upon to provide his expertise on public health matters, second opinions,  peer review and malpractice questions.  He has testified in court over a dozen times and has participated in dozens of sworn depositions. 

A skilled clinician with a particular focus on dental implants and neuro muscular dental bite relations, Dr. Choby emphasizes a collaborative approach in his practice. "Teamwork between the dentist, patients, and their financial abilities along with other health professionals is essential for achieving optimal care," he explains. His patient-centered philosophy reflects his dedication to fostering trust and communication, ensuring each treatment plan is tailored to individual needs

View Dr. Choby's Consulting Profile.