Medical Specialists Expert Witnesses: 114

The Physician Assistant Experts Network™ is a referral resource for attorneys seeking expert medical opinions on the standard of care provided by physician assistants and advanced nurse practitioners. The PA Experts Network™ was founded by Jeffrey G. Nicholson, PA-C, Ph.D., M.Ed., MPAS, an experienced medical-legal consultant and a leader in the physician assistant profession. He will either help you personally or facilitate a physician assistant expert from his network of board certified Physician Assistant Experts in all medical specialties. See his article on this website. Practicing 30 years, a PA Educator, Assistant Professor, and Director of the University of Wisconsin Physician Assistant Program.

Services Include:

• Medical Records Review, Deposition, Testimony, Referrals of PAs, NPs, Midwives, CRNAs, and allied health PT, EMT etc.

Education and Certifications:

• Ph.D., University of Wisconsin-Madison, WI, 2008
• Master of Education, M.Ed., Harvard University, Cambridge, MA, 1989
• Masters Degree in Physician Assistant Studies, University of Nebraska Click here for Website to see complete resume and photo.

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:

Dr. Jorge Perez, MD, is a Board-Certified Plastic Surgeon, practicing in Fort Lauderdale, Florida for over 30 years. A graduate and former faculty member of the Albert Einstein College of Medicine in New York City, he is selected regularly among Castle Connolly/U.S. News and World Report's listing of America’s Top Doctors.

Litigation Support - Dr. Perez is fluent in Spanish and has been retained as a consultant and medical expert for over 25 years. He has provided records review, examination and testimony in matters of adult and child plastic surgery, burns, scars, hand, skin and soft tissue injuries, for both plaintiff and defense. He assists attorneys in preparation for sentinel depositions and vigorous cross examination of opposing experts.

Areas of Expertise:

Dr. Perez is an author and has been featured as an expert in plastic surgery on worldwide media, including ABC, NBC, CBS, Univision, Telemundo and elsewhere. He has lectured and trained thousands of surgeons, in dozens of countries, in multiple languages, in the areas of facial rejuvenation, breast surgery, and body contouring.

He has served as a consultant to breast implant manufacturers Mentor/Johnson & Johnson and Allergan Medical, and has been an FDA principal investigator in breast, body contouring, liposuction and abdominoplasty. He was one of only 10 original investigators to develop Ultrasonic liposuction and was a participant in a national abdominoplasty study for Baxter bioscience. He was the keynote speaker on facial rejuvenation surgery at an international congress held in Brussels Belgium. Dr. Perez has served as plastic surgeon to a leading NYC Burn Center.

Dr. Perez recently gave a guest lecture entitled "How To Get The Most Out Of Your Retained Expert."

www.PerezPlasticSurgery.com. PerezPlasticSurgery@Gmail.com

CV available upon request.

• Pediatric Orthopaedic Surgery
• Orthopaedics in Adolescents
• Pediatric Trauma - Fractures, Growth Plate Injuries, Dislocations
• Child Abuse – Fractures, Fragile Bones (Osteogenesis Imperfecta
• Pediatric Neuromuscular Diseases - Cerebral Palsy, Spina Bifida, Muscular Dystrophy, Peripheral Neuropathies
• Hip Diseases in Children - Hip Dislocation, Perthes Disease, Slipped Capital Femoral Epiphysis
• Peripheral Deformities - Club Foot, Rocker Bottom Foot, Pes Cavus, Pes Planus, Leg Length Discrepancy, Missing Bones
• Lower Limb Deformities – Club Foot, Flat Foot, Rocker Bottom Foot, Leg Length Discrepancy, Missing Bones

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, Capacity, 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.

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.

Jennifer Nulton, OTR/L, CHT, CLT, CEAS, is an Occupational Therapist with over 23 years in practice. Ms. Nulton has provided occupational therapy services to adults and children in an inpatient acute rehabilitation and outpatient setting. She primarily treats patients diagnosed with cancer and/or lymphedema which would often require wound care.

Litigation Support - Ms. Nulton offers expert witness services to attorneys representing plaintiff and defendant, including medical record review, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise: 

 Education: Master of Art Occupational Therapy, University of Southern California; Bachelor of Science Communication Disorders, The Pennsylvania State University

• 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 29 years of experience specializing in Non-Surgical Orthopaedics and Pain Management. A Diplomat of the American Board of Physical Medicine and 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, including the spine and extremities, with emphasis on spine rehabilitation, functional restoration, pain management, and ergonomic modifications. He treats patients with back and neck pain and a variety of other orthopaedic conditions. Managing acute and chronic pain through an advanced Non-Surgical approach, Dr. Weil has become one of the leading experts on Spine Care and Disability Management.

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

Litigation Support - Arnold Weil 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, FASCRS, FASMBS, is a Bariatric surgery thought leader.  Performed over 5,000 primary bariatric surgical procedures and 500 revisional bariatric procedures. Medical Director of nationally accredited bariatric surgery center. Award-winning teacher. Widely published scientist. Author of the nine books. Inventor and patent holder of bariatric surgical device. 

Clinical Experience includes: bariatric surgery and endoscopy, sleeve gastrectomy, gastric bypass, duodenal switch, reoperative surgery, revisional surgery, hiatal hernia, wound care, Barrett's esophagus, hernia mesh, hernia mesh explantation, endoscopic stenting, leaks, Ambulatory Surgery Centers, and solving complications. Prolific public speaker. University of Nevada School of Medicine faculty. Experienced expert witness at both deposition and trial. www.SasseSurgical.com/books. 

Litigation Support - Dr. Sasse has served as a medico-legal consultant to attorneys involved in complex litigation. He has provided extensive expert reviews of complex cases for the State of Nevada, for independent insurance and disability carriers, and for the United States Air Force. He brings to each and every case a level of experience and unparalleled dedication to preparation, excellent service, and insightful review. His expert testimony has proven highly valuable , serving both defense and plaintiff to reach the truth. 

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.