Medical - Medicine Expert Witnesses

Dr. Babak ("Bob") Kamkar is a California Licensed Optometrist with over 30 years oof experience, and one of fewer than 2% of California optometrists who are licensed to the maximum level of the law, including diagnosing and treating glaucoma. Dr. Kamkar is also currently one of fewer than five optometrists with additional credentials as a Qualified Medical Evaluator (Q.M.E.) and Agreed Medical Evaluator (AME) in the State of California. For the past several years, 

Dr. Kamkar has two locations for his private practice, Costa Mesa in Orange County and Glendale in Los Angeles County. He is dedicated to providing patients with unsurpassed service combined with the latest in eye care equipment. 

Dr. Kamkar is  the inventor of the  APD Tester ™, a pupil testing device. Among the technologies incorporated in this practice, undilated 200-degree fundus photography is performed on every patient using OPTOS Optomap® Retinal Exam. For those who need further diagnostic tests, ocular blood flow study and the Heidelberg retina tomograph (HRT3) are performed. HRT3 uses laser technology to produce a topographical image of a patient’s optic nerve, providing an objective analysis of the structure’s cup, rim and retinal nerve fiber layer, as well as detailed 3-D views of the retinal layers in the macula. Additionally FDT and Octopus visual fields are utilized for various eye and vision disorders. 

Dr. Kamkar is skilled in fitting a variety of contact lenses, including difficult cases of Keratoconus. He is certified for fitting Synergeyes lenses, which incorporate a rigid center with a soft lens periphery for maximum comfort and vision. 

Dr. Kamkar is available as an Expert Witness for both Plaintiff and Defense. He has provided QME and AME examination and reports to Californians for over 15 years.

• Cosmetic Surgery - Face, Eyes, Brow, Nose, Ears, Lips, Neck, Breast, Body, Scalp, Extremities
• Liposuction, Breast-augmentation,lift,reduction, Body Contouring, Abdominoplasty, (Buttock,Arms,Thigh,Body lift), Vaginal Rejuvenation,Dermabrasion/Peels,Injectables
• Reconstructive Surgery - Post Traumatic, Burns, Cancer Removal, Wound Healing, Scars, Ulcers
• Breast Reconstruction

• American Society of Plastic Surgeons
• American Society of Aesthetic Plastic Surgery, Inc.
• American College of Surgeons
• American Medical Association
• Florida Medical Association
• Florida Society of Plastic Surgeons
• American College of Legal Medicine

Hugh S. Selznick, MD, is an Orthopaedic Surgeon with subspecialty fellowship-based training in Orthopaedic Traumatology. Dr. Selznick is board-certified by the American Board of Orthopaedic Surgery and a Fellow of the American College of Surgeons (F.A.C.S.). He holds academic appointments as Clinical Assistant Professor of Orthopaedic Surgery at SUNY Downstate Health Sciences University and has served as Medical Director/Chief of Trauma Services for Orthopaedic Trauma Services at Sunrise Hospital & Medical Center in Las Vegas. He is the Medical Director of Consultants Medical Group since 2006.

Litigation Support - Dr. Selznick performs Orthopedic Independent Medical Exams and Record Reviews and can provide objective reviews and analysis of cases arising from personal injury litigation. He also has access to a network of highly qualified physicians across other subspecialties, allowing us to bring in additional expertise when needed. He has extensive experience in forensics since 2006, and has been able to assist attorneys and insurance professionals in understanding the medical/orthopedic issues particular to each case, with a focus on utilizing evidence-based medicine.

Areas of Orthopedic Trauma Expertise:

Education/ Training:

• BA in Biological Sciences from Cornell University (Magna Cum Laude, Arts & Sciences)
• MD from Columbia University College of Physicians & Surgeons, elected to Alpha Omega Alpha
• Orthopedic surgery residency at the Hospital for Joint Diseases Orthopaedic Institute in New York, served as Chief Resident
• Fellowship in Orthopaedic Traumatology at Harborview Medical Center in Seattle

Lawrence Amsel, MD, MPH, specializes in Forensic Psychiatry, including personal injury and psychiatric malpractice. With an MD from Yale University and an MPH in Biostatistics from Columbia University, Dr. Amsel combines his academic credentials, including multileg publications, and clinical expertise including decades as an inpatient and emergency room psychiatrist. With this experience he serves as an expert witness to offer excellent evaluations, written reports and court testimony. 

Dr. Amsel provides Litigation Support services to attorneys representing Plaintiff and Defense. His services include serving as expert witness in psychiatric aspects of personal injury, psychiatric malpractice,  medical record review for causation and standard of care. He has expertise in trauma, PTSD, suicide, Prolonged Grief Disorder, competency issues and medical decision making. He was one of the early champions of the application of Decision Science, Game Theory, and Behavioral Economics to Psychiatric Research.

Areas of Expertise:

Background - Dr. Amsel serves as an expert witness in matters related to psychiatry, with a focus on  Malpractice, Post Traumatic Stress Disorder (PTSD), Suicide, Grief, Medical Decision Making, Hospital Psychiatric Care, and appropriate Evidence-based Standards of Care. Excellent references from multiple law firms are available on request. 

Dr. Amsel's expertise in dealing with the interface of legal and psychiatric issues is based on 28 years of experience in clinical practice, academic psychiatry, research, and public health, as well as his experience as an expert witness.

As an expert on the effects of traumatic experiences, especially after 9/11, Dr. Amsel co-directed the Trauma Studies and Services Division at the New York State Psychiatric Institute. He has been extensively involved in treating victims of 9/11 and their families, in doing research on the effects of the 9/11 attacks on the survivors and First Responders, and in training clinicians in cutting edge treatments for PTSD and Complicated /Traumatic Grief. This has given him a strong foundation as an expert on PTSD and other psychological effects of various types of trauma. It has also made him an expert on malpractice cases in this area. 

Dr. Amsel studied mathematics at Columbia University before entering Yale University School of Medicine. After completing residency training he joined the Columbia faculty completing two prestigious National Institute of Mental Health research fellowships and obtained an Masters in Public Health (MPH) specializing in mental health statistics, and Child Psychiatry Research. 

View Dr. Amsel's Consulting Profile.

Jessica Chaudhary, MD, is a Board Certified, Harvard and Yale trained Psychiatrist with specialties in Psychotherapy and Psychopharmacology. Dr. Chaudhary is a clinical instructor at Yale, and a fellow of the American Psychiatric Association. She has over 10 years of experience focusing on her fields of expertise.

Dr. Chaudhary treats conditions such as anxiety disorders, depressive disorders, attention deficit disorders, women's mental health issues, substance use disorders, psychosis, and dementia with behavioral disturbance.  She has expertise in caring for those with complex medical and co-morbid psychiatric conditions, and she treats individuals across the life span. 

Dr. Chaudhary can provide all services through TELEHEALTH.

Litigation Support - Dr. Chaudhary offers litigation support services in civil and criminal cases to attorneys for Plaintiff and Defense. She is a private consultant and expert witness for attorneys and organizations nationwide. Her services include:

• General Psychiatric Issues
• Women's OB / GYN Issues
• Substance Abuse Issues
• Evaluation and Treatment of Impaired Professionals (and/or consultation with their professional organizations)
• Independent Medical Examination
• Disability Evaluation

Education: Wellesley College, BA; University of Washington School of Medicine, MD; Yale University, Internship and Residency in Psychiatry; Harvard University, Fellowship in Psychosomatic Medicine

Medical Licenses: CT, MA, FL, TX

View Dr. Jessica Chaudhary's Consulting Profile.

Ernest N. Charlesworth, MD, is a Diplomate of the American Board of Dermatology, the American Board of Internal Medicine, American Board of Allergy & Immunology, and the American Board of Diagnostic Laboratory Immunology. He has over 40 years of experience in his field of expertise.

Dr. Charlesworth is one of only a few United States physicians who is board certified in both Allergy / Immunology and Dermatology. Well-versed in his area of expertise, he has published over 50 peer-reviewed articles, several textbook chapters, and two textbooks. He has been honored by the American College of Allergy, Asthma, and Immunology for both Distinguished Service and as a Distinguished Fellow.

Dr. Charlesworth offers litigation support, except independent medical examinations, to attorneys representing both Plaintiff and Defense. He has been deposed and/or testified approximately 15 times since 2010. His services include issues of causation and standard of care. Dr. Charlesworth has completed the National Catholic Certification Program in Health Care Ethics. He retired from active medical practice in May of 2014 but continues to be active in academic medicine.

Areas of Expertise:

Dr. Keith Chamberlin is an award-winning Anesthesiologist in active clinical practice. Georgetown educated, he is a former Dartmouth Faculty member and current Fellow of the American Society of Anesthesiologists. He is a former Hospital Chief of Staff and Decorated United States Army veteran.

Litigation Support - Dr. Chamberlin is available to serve as an expert witness on cases involving anesthesiology standard of care and causation.  He also has significant medical management experience, having served as the CEO of multiple medical groups and an accountable care organization (ACO). As such, he is also available to serve as an expert witness on cases involving physician credentialling, provider agreements, physician employment contracts, healthcare billing and fraud, safety, quality, etc.

Dr. Chamberlin offers expert witness services to attorneys representing plaintiff and defense. He is an experienced expert witness at both deposition and trial. His services include medical record review, thorough reporting, deposition, and testimony as needed.

Areas of Expertise:

Dr. Lorne Sheldon Label, MD, MBA, FAAN, is a Board Certified Neurologist who has extensive training in the treatment of all neurological diseases of adults and children. The field deals with brain, spinal cord, nerve and muscle disorders. Dr. Label has been recognized by the court as having the education, experience, training, and knowledge to assist in rendering an opinion on the subject of Adult and Pediatric Neurology and Acupuncture. His ability is in explaining complicated methods and procedures, technical medical matters and data, as well as interpreting and rendering opinions about a certain set of facts to the court.

Dr. Label has offered his Expert Witness testimony to the legal industry for over 35 years. He has been retained as an Expert by attorneys for both Plaintiff and Defense over 200 times. His services are available for Medical Record Review and Testimony, Medical Malpractice Cases, and Insurance Questions Regarding Neurological Issues.CV available on website or by email.

Areas of Expertise:

Douglas W. Bowerman, MD, FACP, SFHM, FABQAURP, FAIHQ is certified by the American Board of Internal Medicine. In his capacity as a Hospitalist, he provides full-time clinical care to hospitalized patients. Certifications and Associations - Dr. Bowerman is also Certified in Health Care Quality & Management and Fundamentals of Critical Care. He is a Fellow of the American College of Physicians, a Fellow of American Institute of Healthcare Quality, and a Senior Fellow of Hospital Medicine. Litigation Support - In addition to providing care for hospitalized patients, Dr. Bowerman operates a private consulting business that evaluates potential Medical Malpractice cases involving the clinical care provided by Hospitalists. Based on assessment of the case, he advises counsel on its merits, and when needed, writes formal reports, gives deposition testimony, and provides expert testimony in court. Dr. Bowerman supports both plaintiff and defense cases. In the twenty years he has offered litigation support services, he has reviewed over 900 cases, given 40+ depositions, and testified in court 10+ times. Areas of Expertise:

Presentations and Publications - Dr. Bowerman has authored several publications and delivered numerous presentations on such topics as Assigning Duty to Hospitalists, Eradicating Errors and Restoring Credibility, the Determination of Brain Death, and Hospitalists as Respected Attending Physicians.

William Bisordi, MD, FACP, is a Board Certified Internist and Gastroenterologist with 35 years of experience in private practice. Dr. Bisordi currently serves as a consultant in field of medical record review, lab analysis, and outcomes and adverse reactions for the Pharmaceutical and Healthcare industry.

Career Experience:

• New York State Department of Health Office of Professional Medical Conduct, Hearing Board, 2003-2019
• Board of Directors, Secretary, Westchester Health Care Corporation, 1998-2003
• Medical Director, Care Plus Health Plan, 1995-1997
• Senior Physician Consultant, Island Peer Review Organization, 1992-1998

Litigation Support - Dr. Bisordi has extensive experience in record review for both plaintiff and defense attorneys over the past 35 years. His expertise includes Medical Record Review, Negligence Issues, Standard of Care Issues, Medical Damages, and Medical Data Analysis. In his capacity as a Medical Expert, he helped win a $20,000,000 verdict.

Areas of Expertise:

  Fee Schedule upon Request.

Gerald W. Smetana, MD, Board Certified in Internal Medicine, is a General Internist with 38 years of experience in an academic primary care practice at Beth Israel Deaconess Medical Center in Boston. He is also a Professor of Medicine at Harvard Medical School where he has taught internal medicine to medical house staff and also teaches extensively to practicing clinicians in continuing medical education settings. Dr. Smetana is a Master of the American College of Physicians.

Practicing in an outpatient setting, Dr. Smetana cared for a panel of patients that was weighted towards those with multiple chronic illnesses and high disease complexity. In addition to all aspects of office based general internal medicine, his areas of interest include Preoperative Medical Evaluation, Hypertension, and Headache.

Dr. Smetana has been repeatedly selected as a Best Doctor in a national survey. He publishes in the peer reviewed medical literature and medical texts, has edited textbooks, and has helped to develop national guidelines on topics in internal medicine. He has been invited to deliver seminars and presentations on various topics within his area of expertise nationally and internationally. He has been a section editor for the Annals of Internal Medicine. In April 2025, Dr. Smetana retired from clinical practice, but remains active in scholarly work, lecturing, and consulting.

Litigation Support - Dr. Smetana reviews cases for both plaintiffs and defendants and has testified at deposition and at trial as an expert on numerous occasions in most states in the eastern United States. He has reviewed medical malpractice cases over the past 20 years both for plaintiffs and doctors. Dr. Smetana also consults for risk management insurers. His record review and medicolegal consultation services are available throughout the United States.

Monica M. Argumedo, MD, is a Board-Certified Forensic and Clinical Psychiatrist (ABPN). Dr. Argumedo has testified about her forensic opinions in more than 40 cases in open court. In psychiatric practice for more than 15 years, Dr. Argumedo teaches at Rush University Medical School/Rush University Medical Center as Assistant Professor in Psychiatry. She teaches psychiatry residents in topics related to psychiatry and the law, and psychiatry in medicine. She also interviews prospective medical students through her role on the Medical Admissions Committee.

Dr. Argumedo works with Employers in cases where mental health/psychiatric concerns about an employee require an objective and unbiased Fitness for Duty Evaluation and report. She also consults in employment matters and litigation and serves as a disclosed expert witness. Her work addresses fitness for duty (FFD) in a litigated environment, Wrongful Termination, and Psychiatric Disability. Additional experience includes FFD of peace officers and first responders.

Services - Forensic Psychiatry, Medico-Legal evaluations, medical complications, review of records, written reports, deposition testimony, trial testimony, consultation to attorneys addressing psychiatric issues relevant in a case, opposing counsel expert reports or expert qualifications, assisting with cross-examination questions, and lines of inquiry.

Areas of Expertise: