Medical Specialists Expert Witnesses: 84

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:

John Budny, PhD, provides expert Toxicology opinions based on recognized and accepted medical knowledge to determine if prescriptions, over-the-counter medications, and drugs of abuse that cause adverse medical events. With a PhD in basic medical science and a 40-year career as a practicing toxicologist, Dr. Budny combines the science of toxicology with medical knowledge to fully understand the ramifications of an adverse medical event caused by prescribing errors, faulty medications, or failure in the health care delivery process.

Dr. Budny has conducted scientific investigations in toxicology and has published the results of his research. In addition to being as an expert witness, Dr. Budny provides scientific contributions by writing book reviews of relevant topics related to toxicology and forensics. He is also on the Editorial Board of the International Journal of Toxicology. In his position on the Editorial Board, Dr. Budny reviews manuscripts on general toxicology and forensic topics that are submitted and proposed for publication in the journal. He also writes book reviews that cover the entire breadth of toxicology. 

Litigation Support - Dr. Budny has over 25 years of experience as an expert witness. He has been retained in over 300 cases in which he has opined in reports, depositions, and in court testimony about cause and effect relationships between chemicals and adverse reactions and toxicities. While his forensic toxicology practice is not limited to any specific type of chemical, most of his retention as an expert has been for prescription drugs, illicit drugs, dietary supplements and nutritional products.  

Successfully resolved complex medical issues involving pharmaceuticals and drugs:

Armond Kotikian, DDS, MD, FACS, is double board certified in Oral and Maxillofacial Surgery. In the clinic setting, Dr. Kotikian routinely performs IV sedations for complex cases including impacted wisdom teeth removal, dental implants, bone grafting and tumor excisions. He specializes in:

• Oral and Maxillofacial Trauma
• Infections
• Oral Pathology Resection and Reconstruction
• Treatment of Obstructive Sleep Apnea Patients (surgical and non-surgical)
• Craniofacial Anomalies (orthognathic surgery / corrective jaw surgery)

Litigation Support - A Fellow of the American College of Surgeons, Dr. Kotikian has extensive experience as an expert witness in the field of Oral and Maxillofacial Surgery and Dentistry. His Dental law and Dentistry services have been requested all over the country. Dr. Kotikian has been an expert witness on over 125 malpractice cases, given depositions on over 65 cases and testified at court over the past six years. His cases have included a wide variety of issues related to the Oral and Maxillofacial region including

• Oral Pathology
• Nerve Injuries
• TMJ Issues
• Oral Trauma
• Oral and Facial Fractures and Lacerations
• Injuries related to Extraction of Teeth
• Injuries related to Dental Implant \ Surgery
• Orthognathic Surgery Complications
• Head and Neck Infections related to Teeth and Salivary Glands

More information at www.oralsurgeryexpertwitness.com

View Dr. Kotikian's Consulting Profile. 

Dr. Peter-Brian Andersson, a Board Certified Neurologist and Associate Professor of Neurology at UCLA, specializes in Traumatic Brain Injury, Multiple Sclerosis, Complex Regional Pain Syndrome, Memory Disorders, Testamentary Capacity & Undue Influence, and Nursing Home Standard of Care. 

Between 1992 and 1997, Dr. Andersson completed an internal medicine internship and then neurology residency at the University of California, San Francisco where he also served as Chief Resident. He has completed fellowships in multiple sclerosis at UCSF and in neuromuscular disease at Stanford University. He served on the faculty at Stanford University in the neuromuscular division before moving to the Valley in 1999 and has served this community as both an outpatient and inpatient neurologist for over 20 years.

Dr. Andersson has been published in laboratory and clinical neurology. He has been an ad hoc reviewer for the journal Muscle & Nerve. He is the Medical Director of Stratus Neurodiagnostics, the leading outpatient EEG services company in the United States, and has served as a Principal and Co-Investigator for dementia trials at The National Research Institute.Epilepsy 

Litigation Support: Dr. Andersson has extensive experience providing expert testimony. His services include medical record review, IMEs, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

Prior to beginning his residency, Dr. Andersson graduated cum laude in medicine from the University of Cape Town in 1986. In 1988, he earned an honors degree in medical biochemistry at the University of Cape Town. Between 1988 and 1991, Dr. Andersson obtained a D. Phil in neuroimmunology at Oxford University as a Rhodes Scholar. He was Yamanouchi Junior Research Fellow in Cell Biology at Wolfson 1991-2. Junior Research Fellowships are awarded to the top 2% of graduates at Oxford University.

Dr. Mark J. Conklin is a board-certified Orthopedic Surgeon with over 30 years of experience in treating Complex Foot and Ankle Conditions. He has spent over two decades specializing in ankle replacement surgeries and is recognized for his role as an expert witness in malpractice, personal injury, and workers’ compensation cases. With his commitment to staying at the forefront of orthopedic advancements, Dr. Conklin provides top-tier care to his patients.

Litigation Support - Dr. Conklin provides expert witness services for plaintiff and defense in medical malpractice, personal injury and worker's compensation cases. His services are available for IMEs.

Dr. Conklin has reviewed over 120 cases and been in over 20 depositions. He is skilled in presenting complex medical information in a clear and understandable manner, ensuring that juries and judges grasp the key medical issues.

Areas of Expertise:

Dr. Conklin is a Former President of Woodridge Orthopedic Clinic, Chairman of the Lutheran hospital department of Orthopedic Surgery, President of the Golden Ridge Surgery Center, President of Panorama Orthopedic and Spine Center and President of the Colorado Orthopedic Society.

Mari S. Truman, PE, has more than 40 years of experience in Orthopedic Product Design and Development. As Principal Engineer with her company, Orthobiomech, LLC, she acts as an R&D design and development consultant to the orthopaedic industry and an injury biomechanics and medical device forensic expert. Ms. Truman's design experience includes implants and instrumentation systems used to repair fractured bones, torn ligaments and/or to reconstruct spine, knee, wrist, hip, ankle, elbow, thumb based cmc, and other finger and toe joints for many of the USA based orthopaedic conglomerates and a few Asian, Australian and European firms. Having designed and developed implants and instruments used for both human joint reconstruction and skeletal trauma repair, Ms. Truman is named on 12 Orthopaedic Patents and frequently gives talks on implant design and injury biomechanics on topics such as: knee and thumb-based joint surfaces and kinematics, joint design, rapid prototyping, medical device design control, and injury biomechanics.

Litigation Support - Ms. Truman has been providing Forensic Impact and Injury Biomechanics and Orthopedic Biomechanics to the legal industry for over 15 years. She draws on her strong knowledge of FDA and ISO EN13485 compliant design control processes, failure modes and effects analysis, clinically relevant tissue loading, and design safety assurance, including device performance requirements and warnings, during her medical device litigation reviews. Ms. Truman has a strong knowledge of the production and quality assurance processes used in the manufacture, cleaning, and sterilization of medical devices and the effects of such processes on product performance.

Analysis of Traumatic Injuries Related To:

View OrthoBioMech LLC's Consulting Profile.

• Thoracic Surgery
• Vascular, Endovascular surgery and Phlebology
• Non-invasive Vascular Testing
• Wound Care

Dr. James C. Norris, Ph.D., DABT, EURT is an Expert Witness in Toxicology and Pharmacology. He has Litigation and Arbitration experience in the United States, United Kingdom and Hong Kong. Dr. Norris has given testimony to government agencies, has acted as a consultant for the media (BBC) and is an Industrial Site Crisis Team Member. He is avaliable for both Plaintiff and Defense.

Areas Of Expertise:

• Carcinogenicity and Chemicals
• Combustion or Fire Toxicolog
• General and Inhalation Toxicology
• Pesticides, and Pharmaceuticals (pharmacology)

Professional Affiliations:

• American Association of Pharmaceutical Scientists
• British Toxicology Society
• Society of Toxicology
• Editorial Boards of Inhalation Toxicology and Journal of Fire Sciences

Arnold J. Weil, MD has over 33 years of experience specializing in Non-Surgical Orthopaedics and Pain Management. A Diplomat of the American Board of Physical Medicine & Rehabilitation and Chief Executive Officer of Non-Surgical Orthopaedics, P.C., one of the premier orthopaedic practices in the metro Atlanta area. 

Dr. Weil's practice focuses on conservative, non-surgical care of orthopaedic injuries and pain management, including a variety of interventional injections, therapy and pharmacologic management. He treats patients with back and neck pain and a variety of other orthopaedic conditions and is one of the leading experts on Spine Care and Disability Management.

Video: Non-Surgical Orthopaedics, P.C. | The Overview

Litigation Support - Arnold J. Weil, MD provides litigation support services to attorneys representing plaintiffs and defendants. He has maintained an unbiased reputation in the medical and legal community. Dr. Weil's experience includes over 300 depositions, medical-legal reviews, peer reviews, and trial appearances. 

Areas of Expertise:

View Dr. Weil's Consulting Profile.

Kent C. Sasse, MD, MPH, FACS, FASMBS, is a Board-certified general surgeon in active practice. UCSF general surgery residency; Lahey Clinic colon and rectal surgery fellowship. Over 20,000 gastrointestinal, colorectal, general, and bariatric procedures. Clinical Associate Professor, University of Nevada School of Medicine. Approximately 50 peer-reviewed publications. Medical Director of nationally accredited bariatric surgery center.

Clinical Experience - Bariatric and metabolic surgery, revisional and reoperative procedures, anastomotic and staple-line leak, failure to rescue, hernia repair and mesh and biologic graft performance, hiatal hernia and fundoplication, advanced endoscopy and stenting, colorectal surgery, pelvic floor and incontinence, sacral neuromodulation, complex wound management. Twenty-plus years as medical director of a nationally accredited bariatric center. Inventor and patent holder, bariatric surgical device. 

Nutrition support - Former medical director of a home infusion pharmacy with clinical oversight of home parenteral and enteral nutrition therapy, vascular access, and patient selection. Member, American Society for Parenteral and Enteral Nutrition. Experience with criteria-based medical necessity review. Reviews the nutrition and gastrointestinal components of life care plans, including indications for enteral versus parenteral support, expected trajectory and adaptation after intestinal resection, access complications, and projected duration of therapy 

Litigation Support - Medical negligence, personal injury, and product liability. Over 100 case reviews for the Nevada State Board of Medical Examiners and the U.S. Air Force. 50+ depositions and trial testimonies. Retained by plaintiff and defense in approximately equal measure, and has served as a neutral reviewer. 

Dr. Sasse is a sought-after speaker and an experienced trial witness, having logged many hours on the witness stand in highly charged cases. He brings a commitment to objectivity and thoroughness to each and every case. 

Areas of Expertise:

View Dr. Sasse's Consulting Profile.

MRK Medical Consultants provides Medical-Legal Evaluations to help legal and insurance professionals reach appropriate conclusions about their client's situations. MRK provides a wide array of medical experts that offer objective review and analysis of personal injuries. Each stage of the process—research to review, analysis to opinion—is addressed in a comprehensive manner in order to help legal and insurance professionals reach appropriate conclusions about their client’s situations. MRK's prestigious list of more than forty consultants are active clinicians and surgeons, who are all board-certified or eligible in one or more specialties. MRK provides physician experts to the entire State of California, the Reno/Lake Tahoe area, and Las Vegas, and we travel to many areas of the United States. Physical therapy, registered nurses, physician assistant, and billing review consultants are available services MRK provides. Our office physicians are available for telephone review of the merits of your case before you decide to proceed.  

Edward W. Younger, III, M.D., Medical Director of MRK Medical Consultants, specializes in Orthopedic Surgery. He has extensive experience in total joint replacement, as well as reconstructive surgery of the knee, hip, and shoulder. He was instrumental in bringing computer navigation technology to his hospital. He served on the orthopedic trauma staff at Mercy San Juan Medical Center in Carmichael, California, for more than fifteen years and was instrumental in bringing computer navigation technology to that institution. He is a member of Alpha Omega Alpha National Honor Society and is a Diplomate of the American Board of Orthopedic Surgery, a member of the American Medical Association, the American Academy of Orthopedic Surgeons, and the California Orthopedic Association.

Dr. Michael R. Klein, Jr., M.D., specializes in Orthopedic Surgery and is a founding member and the first Medical Director of Northern California Orthopedic Centers. He was involved with the development of the orthopedic section of the Level II Trauma Center at Mercy San Juan Medical Center. He served as a clinical professor at the University of California, Davis, Medical Center for more than thirty years. He has been a member of the North American Spine Society since 2009 and was awarded the David O. Selby Award in 2020 for his contributions. He is a fellow of the American College of Surgeons and American Academy of Orthopedic Surgeons, and a member of the American Medical Association and the California Medical Association. He retired from the USAF in 1998 after being on active duty during the Vietnam War, and he was activated for Operation Desert Storm in 1991. 

MRK's Areas of Expertise:

Brent Moelleken, MD, FACS is a Plastic and Reconstructive Surgeon practicing in Beverly Hills and Santa Barbara. Double board certified, he received his training at Harvard University, Yale University, UCSF, and UCLA. Dr. Moelleken is one of three specialty-trained surgeons in the world to complete the year-long Aesthetic Surgery Fellowship at UCLA. He is an Attending Surgeon and Associate Clinical Professor in the Division of Plastic Surgery at UCLA, where he often performs surgeries and teaches residents. Here, he specializes in patients diagnosed with skin cancers in the facial area who require complex, artful reconstructions. 

Dr. Moelleken has innovated various procedures including LiveFill®, autologous fat-fascial grafts; the USIC® & LUSIC® cheeklifts, short incision cheeklifts; the 360 Facelift®, a comprehensive natural appearing facelift procedure; and the Hybrid Tummy Tuck®, a short incision tummy tuck for fit moms. He believes in publishing the results of his innovations in peer-reviewed journals. Results of Dr. Moelleken’s studies have been published in books, articles, and the Plastic and Reconstructive Surgery journal. Dr. Moelleken provides free surgical services to Veterans at the West Los Angeles Veteran's Hospital through his UCLA affiliation, and has his own charity, the About Face Foundation ™, helping children and victims of violence or crime who might otherwise be unable to afford reconstructive services. Several of his charity patients have been featured in local and national television and print segments.

Litigation Support - Dr. Brent Moelleken provides expert witness support for insurance companies and counsel representing both plaintiff and defendant. His services include medical case review, depositions, and trial testimony when necessary. Dr. Moelleken has trial experience with the following issues:

View Dr. Moelleken's Consulting Profile.

Paul J. Michaels, MD, is a nationally renowned Anatomical and Clinical Pathologist with over 20 years of experience in his field. Dr. Michaels completed his medical residency and earned a Fellowship in Cytopathology from Massachusetts General Hospital / Harvard Medical School.

Litigation Support - Dr. Michaels offers expert witness services to attorneys representing plaintiff and defense. He has written over 100 general causation reports focusing on pathology and providing an extensive differential diagnosis in order to provide an opinion with a reasonable degree of medical certainty. Dr. Michaels has participated in numerous MDLs, been deposed over 60 times, and testified in court 6 times.

Areas of Expertise:

Background Experience - Dr. Michaels is currently a member of a 10-pathologist group that operates the largest and most comprehensive anatomic pathology services laboratory within Central and Coastal Oregon. He is one of two pathologists responsible for covering Bay Area Hospital, the largest hospital on the Oregon Coast, which serves as a regional referral center.

Dr. Michaels' roles at Bay Area Hospital include: Chairman of Pathology; Member of the Hospital Medical Executive Committee; Medical Director for Transfusion Medicine, Hematology, and Cytopathology; Member of the Cancer Committee; and Member of the Trauma Committee.

At Southern Coos Hospital and Medical Center, Dr. Michaels serves as Laboratory Medical Director where his Anatomic Pathology responsibilities include frozen sections, gross evaluation and sign-out of complex surgical specimens, review of numerous outpatient biopsies, GYN and NON-GYN cytology, presentation at tumor board conferences, and performing hospital autopsies. Clinical pathology responsibilities include peripheral blood smear and body fluid review, crystal identification, and evaluation of blood transfusion reactions.

Speaking Engagements and Presentations - Dr. Michaels has delivered seminars and presentations in Canada, Japan, and throughout the United States. Topics have included cytopathology, breast cancer, acute cellular rejection, and many more.