Psychiatry Expert Witnesses: 20

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 fileds 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.

Dr. Weiss' unique ability to establish exceptional rapport with clients allows for thoughtful, thorough examinations, leaving no stone unturned. As everything affects the psyche, her keen attention to detail with complex medical-legal records enables her to integrate highly complex psychiatric histories and concepts, coming to evidence-based opinions, and providing high-caliber, usable medical-legal reporting and testimony.

Dr. Weiss has decades of diverse experience. Able to view a case through multiple lenses, she must consider what has happened prior to, since, and outside of an accident/incident, as well as uncovering details of the event(s) itself. She must be objective and look at the evidence which has been presented. It is important to consider how a person is functioning, and what is the status of their mental/psychological state. If there is evidence for psychiatric injury/pain and suffering, her ability to articulate a person's perspective, as well as how she, as the psychiatric expert, would understand the issues and their impacts, is unparalleled. 

Ultimately, whether Dr. Weiss' findings strengthen her client's case, or help to uncover weaknesses/deficiencies which need to be addressed, one can be confident that Dr. Weiss will provide a through, detailed psychiatric analysis based on medical evidence. 

Dr. Weiss is a Life Fellow of the American Psychiatric Association, and a Board Certified Psychiatrist, in private practice since 1988. Her expert witness work has involved employment law, concentrating in claims of emotional distress along with pain and suffering. Dr. Weiss provides litigation support in cases related to harassment (sexual/gender-based/racial), PTSD, as well as other personal injury/accident complaints

Psychiatric Areas of Expertise:

Suzanne Dupée, MD, is a triple board certified Adult, Child, and Adolescent Forensic Psychiatrist specializing in Independent Medical Examinations (IME), Child Custody Evaluations, Fitness for Duty Evaluations, and expert witness for the California Medical, Veterinary, and Dental Boards.

Litigation Support - Dr. Dupée has an active forensic psychiatric practice specializing in family law, criminal law, dependency law, civil litigation and disability.  She has been designated as an expert in Federal Court, Family Court, Criminal Court, Dependency Court, Juvenile Delinquency and Civil Court in California, Arizona, and New York states.  She is an expert for several Los Angeles Superior Court panels:  Criminal, Child Custody Evaluator, Dependency Court and Juvenile Delinquency.  

Dr. Dupée has testified over 150 times in various courtrooms and has been deposed over 80 times.  She has worked on high profile cases and death penalty cases. She specializes in forensic evaluations of families in crisis and has completed 100s of Child Custody Evaluations and all forms of psychiatric evaluations for families in crisis.

Dr. Dupee has been retained in 100s of legal cases in civil, family law, criminal, disability and dependency cases. She has completed over 1,000 evaluations in various courts and for insurance companies and government boards. She has been retained by plaintiffs and defense counsel in civil cases.

Areas of Expertise:

View Dr. Dupée's Consulting Profile.

Stephen M. Raffle, M.D. is double Board-Certified in Psychiatry and Forensic Psychiatry. Dr. Raffle has over 49 years as a clinical and forensic psychiatrist offering his expert opinion in Federal and State jurisdictions nationwide. In addition to serving as an expert witness, Dr. Raffle consults to attorneys, judges, insurers, and to employers regarding Fitness for Duty and Risk of Violence (Threat) Assessment:

• 5000+ psychiatric assessments
• Expert testimony in 700 depositions and trials
• Successful clinical practice

The job of an expert witness is to educate a jury, judge, attorney, and trier of fact about the forensic psychiatrist's conclusions and how those opinions were derived in a manner well-reasoned, skillful, and easily understood by every person, not only another forensic psychiatrist. In short, an educator. Dr. Raffle’s experience as an educator extends well beyond a forensic venue, yet underpins the key to his ability to explain his opinions.

• Prof. of Psychiatry, UCSF Medical School, 20 years
• U.C. Hastings College of the Law postgraduate course "Trial and Appellate Advocacy" instructing seasoned attorneys about the direct and cross-examination of expert witnesses, with special focus on mental health experts and licensed medical professionals, Psychiatrists (MDs), Psychologists (LCSWs / MFTs), and physicians in other medical specialties, 11 years

Stephen M. Raffle, M.D. & Associates' expertise is well-established in forensic assessment in the areas of:

• Post-Traumatic Stress Disorder (PTSD)
• Dementia and Competency
• Testamentary Capacity
• Undue Influence
• Traumatic Brain Injury
• Malingering
• Emotional Distress: Intentional & Unintentional infliction
• Emotional Distress: Forensic Evaluation to render medical-legal opinion
• Diagnosis and Need for Treatment
• Fitness For Duty
• Risk/Threat Workplace Violence Assessment
• Wrongful Termination
• Discrimination (ADA, Title VII, EEOC)
• Harassment
• Employment Litigation
• Medical Malpractice
• Catastrophic Injury
• Temporary and Permanent Disability
• Medical Records Review
• Assist in Preparation for Direct and Cross-examination of Expert Witnesses and Deposition of expert witnesses

Licensed in California.

Elliott M. Stein, MD is a Geriatric Psychiatrist with over 45 years of experience caring for the elderly. Dr. Stein is Board Certified by the American Board of Psychiatry and Neurology in General Psychiatry (October, 1979) and Geriatric Psychiatry (April, 1991; Re-Certified, December, 2001, April, 2011, December 2022). He is licensed in California and Florida. Dr. Stein was the Director of Psychiatry at the Jewish Home of San Francisco from 2010-2020, and the Medical Director of their Geriatric Psychiatry Hospital. He has treated older individuals, typically people who have complex combination of psychiatric and medical problems. Dr. Stein has been a Member of the Task Force on Testamentary Capacity and Undue Influence, for the International PsychoGeriatric Association.

Dr. Stein is a Clinical Professor (Voluntary) in the Department of Psychiatry at the University of California, San Francisco, School of Medicine. He is a Distinguished Life Fellow of the American Psychiatric Association and a Distinguished Fellow of the American Association for Geriatric Psychiatry and a Life Member of the International PsychoGeriatric Association.

He is available to serve as an Expert Witness, do legal and forensic consultation, record review, and assessments concerning Psychiatric issues in Older Individuals. Dr. Stein offers his services to attorneys for both Plaintiff or Defense.

Areas of Expertise:

• Contested Wills and Trusts
• Testamentary Capacity, Undue Influence, Insane Delusions
• Financial Elder Abuse
• Geriatric Competence/Capacity
• Dementia and Delirium, Alzheimer’s Disease
• Geriatric Psychiatry Evaluation and Treatment, Psychiatric Medication, Psychotherapeutic Issues
• Depression and Anxiety Disorders
• Relationship Problems between the Elderly and their Adult Children
• Aging and Mental Disorders
• Geriatric Psychiatry issues in Hospitals, Nursing Homes, Memory Care, Independent and Assisted Living Facilities
• Medicare Psychiatric Services Coding and Documentation

View Dr. Stein's Consulting Profile.

Sanjay Adhia, MD, MRO, is triple-Board-Certified in Psychiatry, Brain Injury Medicine, and Forensic Psychiatry. In addition to forensic/expert witness practice, Dr. Adhia treats patients at renowned TIRR Memorial Hermann Hospital. His forensic practice focuses on the psychiatric impact of personal injury, medical malpractice, Multi-Plaintiff and Toxic Tort cases, testamentary capacity, undue influence and Dementia, TBI Brain injuries, competency, mental illness and complicating medical conditions. 

Dr. Adhia is among one of a select few Forensic Psychiatrists co-Board-Certified in Brain Injury Medicine. 

Dr. Adhia treats and opines about Traumatic Brain Injury (TBI) in litigation as it can result in psychiatric or neurocognitive impairments. He always assesses for Malingering.

In addition, Dr. Adhia works with Physicians for Human Rights to assess victims of kidnapping and false imprisonment, human trafficking, undue influence, physical and sexual abuse, rape, and fear of imminent death. 

In all populations, he assesses PTSD, Anxiety, Depressive Disorders, risk of suicide, and malingering. 

He is experienced in the treatment and impact of drug and alcohol abuse on decision-making. Dr. Adhia has also treated severe psychosis (Schizophrenia, hallucinations) and psychopathology. He formerly treated patients at a Maximum Security Prison and prison psychiatric hospital. 

Dr. Adhia’s findings consider complicating factors, e.g., emotional distress worsened by active physical and mental conditions, and pre-existing mental and physical illness (e.g. depression, PTSD, Dementia, Alzheimer's, medication.) 

As a physician, Dr. Adhia is uniquely qualified to review and examine and incorporate medical records and doctor reports in his reports. This is especially important in medical-malpractice & standard of care cases in treaters, inpatient, rehab, hospital, government, corrections and psychiatric hospitals. Dr. Adhia is skilled in these med-legal issues. 

He conducts Independent Medical Examinations, review of records, and reports findings to courts and attorneys. He is available to testify in civil, criminal, probate, Federal, Immigration, military, and administrative jurisdictions.

Kerry Mendes, M.D., Child, Adolescent and Adult Forensic Psychiatrist joined Dr. Adhia in 2022.

Dr. Pia Quimson-Guevarra is Board-Certified in Psychiatry and Forensic Psychiatry by the American Board of Psychiatry and Neurology. She opines about psychiatric issues in civil litigation, employment matters, and criminal cases. She has extensive experience with diagnosis and treatment of depression, anxiety, bipolar disorder, PTSD and other factors of emotional distress, both as a treating physician and in medical-legal cases. She serves as a forensic consultant, and/or disclosed Expert Witness. She assesses competency and undue influence,  standard of care, and mental status re judgment and clarity of thinking. Applies to civil, probate and CTST criminal matters including criminal responsibility. She is also experienced in treatment of psychotic disorders,  hallucinations, and delusions.

She opines about medication or drug impact on behavior.

Dr. Quimson-Guevarra conducts IMEs and review of medical and legal records. Her assessments are thorough and inform thoughtful and objective expert opinions issued by verbal and written report and testimony. She conducts Independent Medical Evaluations face-to-face in person and by video.

She is a Certified Forensic Evaluator in Oregon.

Dr. Quimson-Guevarra's clinical practice in Portland is Quimson Behavioral Health, providing psychiatric patient care, medication management, and psychotherapy, for patients who suffer from mental disorders, e.g., Anxiety, Depression, Bipolar Disord & PTSD and medication management. She continues to use her expertise in psychopharmacology to treat mental health conditions in the context of medicolegal medically complex cases.

Prior to expanding her private practice, she was a psychiatrist at Cascadia Behavioral Healthcare, in an Assertive Community Treatment (ACT) team, a method to deliver an intensive level of services to patients in the local community. Her patients consisted of individuals who suffer from severe and persistent mental illness.  At Cascadia, she also treated patients with a history that includes forensic medical-legal issues.

Previously, Dr. Quimson-Guevarra treated patients who suffered from anxiety, mood, and psychotic disorders at Cedar Hills Hospital, Multnomah County Detention Center, Washington County Jail, Snake River Correctional Institute, and the Portland Veteran's Administration. 

Dr. Quimson-Guevarra has served as a forensic consultant for the Washington County Mental Health Court in Oregon. She also has worked in the forensic evaluation service department at the Oregon State Hospital where she performed forensic evaluations.

Michael Levittan, Ph.D. is an Expert Witness, Psychotherapist, Media Consultant, and Lecturer at UCLA Extension and California Graduate Institute. Dr. Levittan works as an expert witness on cases involving domestic violence, child abuse, post-traumatic stress, anger issues, child custody, school violence. He is director of a certified Domestic Violence/Anger Management program and has numerous articles published on violence and abuse.

Dr. Levittan presents at UCLA, National Alliance on Mental Illness, L.A. Superior Court, U.S. Marines, Hillsides Children's Home, Loyola Marymount Univ, International Conference on Violence, Abuse, Trauma, California Association of Marriage and Family Therapists, Grief & Loss Conference, The Maple Center, Womens Shelters.

Dr. Levittan's website: www.michaellevittan.com.

Dr. Mayer is an independent consultant and scholar that (for identification only) holds the position of Visiting Fellow in Human Flourishing,  Harvard University. He has been a full-time tenured professor with recent appoints in statistics, biostatistics, epidemiology, biomedical informatics, public health and medicine (psychiatry). He held various titles including, Professor (Part-time), Bloomberg School of Public Health and School of Medicine, Johns Hopkins University, Affiliated Professor, Mayo Clinic/ASU joint program in Biomedical Informatics, a member of the Research Staff at Mayo Clinic, and Professor at Arizona State University. 

Dr. Mayer continues to do research and mentor young physicians and medical students while doing a limited amount of consulting in epidemiology, biostatistics, statistics, observation studies and clinical trials. His consulting projects often focus on model development, execution and inferences. He is one of the few MD/PhD epidemiologists. He led a  group of 6000 physicians and epidemiologists that reviewed the science of COVID-19 

Bankole A. Johnson, DSc, MD, MBChB, MPhil, FRCPsych, DFAPA, Dip-ABAM, Dip-ABDA, FACFEI, is a leading Neuroscientist and respected global authority in both Psychiatry and Neuroscience. His considerable education and expertise date to the 1970s, when he received his first general studies diploma.

Dr. Johnson earned his Medicinae Baccalaureum et Chirurgiae Baccalaureum (an M.D. equivalent) from the University of Glasgow in Scotland. He also received his UK Board Certification in Psychiatry from the Royal College of Psychiatrists, his Master of Philosophy in Neuropsychiatry at the University of London, and his Doctorate in Medicine from the University of Glasgow (coursework at the University of Oxford). He also received a Doctor of Science from the University of Glasgow, the highest doctoral degree a British university can award.

In addition to these qualifications, Dr. Johnson has also received United States certifications from the American College of Forensic Examiners Institute, the American Board of Psychiatry and Neurology, and the American Board of Addiction Medicine. 

Video Introduction: Neuroscience Expert Witness Dr. Bankole Johnson

Today, Bankole Johnson is a board-certified psychiatrist and physician throughout Europe and the United States. He is a respected collegiate authority in his field at a leading university in the United States. Dr. Johnson is a leading authority on the effects of abused drugs, including alcohol, on the brain and how this affects behavior, especially that related to the commission of a crime. He is a national expert on the treatment of opioid addiction as well as on assessing medical malpractice and insurance claims. Dr. Johnson is also a national expert on the effects of diseases of the brain, mental illness, mental disorders, and aberrant behaviors on testamentary capacity. He also is a national expert on assessing disability as a result of mental disorders, mental illness, and alcohol and drug abuse.

Litigation Support - Dr. Johnson provides expert witness services for cases involving all aspects of Addiction Medicine (e.g., alcohol, cocaine, heroin, and other opioid and substance abuse) as well as diseases of the brain and brain disorders that affect mental capacity. He is experienced as an expert witness for medical malpractice, capital cases, and major crimes. Dr. Johnson's services are available to attorneys for plaintiff and defendant and include medical record review, written reports, depositions, and trial testimony when needed.

Areas of Expertise:

View Dr. Johnson's Consulting Profile.

Jeffrey A. Sugar, MD has been a practicing Psychiatrist for over 20 years. Dr. Sugar is board certified both in Child and General Psychiatry. He is Past President of the Southern California Society of Child and Adolescent Psychiatry.

Dr. Sugar  is an Assistant Professor of Clinical Psychiatry at USC, and has been an Assistant Clinical Professor of Psychiatry at UCLA. Dr. Sugar is the Director of the Child and Adolescent Psychiatry Trauma Program at the University of Southern California, Keck School of Medicine in Los Angeles, CA where he sees patients, teaches psychiatry, and performs research. He is Attending Psychiatrist in both Child and Adolescent Psychiatry and Adult Psychiatry Outpatient Clinics at USC. He teaches child and general psychiatrists-in-training and medical students on topics ranging from Trauma, Adversity, and Dissociation to Psychotherapy theory and methods.

Dr. Sugar was the founding director of the Hathaway Children’s Clinical Research Institute where he performed funded research on the effects of interpersonal child trauma. Dr. Sugar has presented at national and international meetings on child and adolescent Trauma and Dissociation. Director, Child Psychiatry Trauma Program at the University of Southern California, Keck School of Medicine .. Dr. Sugar has been worked with the legal industry since 1988. Qualified in Superior court, he has been retained over 40 times as an expert in a broad range of child and general psychiatric cases, for both Plaintiff and Defense. His services include:

• Consultation Regarding Psychiatric Injury, Diagnosis, Treatment
• Record Review and Opinion
• Psychiatric Interview and Mental Status Evaluation
• Expert testimony

Dr. Sugar's litigation support is available to attorneys for both Plaintiff and Defense. His Areas of Expertise include:

Professional Training:

• MD: University of California, San Francisco
• General Psychiatry: Harbor-UCLA, Torrance, California
• Child Psychiatry: UCLA-Neuropsychiatric Institute
• Chief Fellow: UCLA

View Dr. Sugar'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.

A senior clinical faculty member at Harvard Medical School, Harold J. Bursztajn, M.D., is active in patient care in medical, psychiatric and judicial education nationally. He is qualified in both state and federal courts and is nationally recognized as a distinguished impartial, clinical, ethical and forensic expert to P/D attorneys and institutions. Individual and multispecialty team consultations available.

• Informed Consent & Malpractice
• Employment Litigation: ADA, Disability, Sexual Misconduct Discrimination, Worker's Compensation
• Emotional & Physical Damages: Conscious Pain & Suffering, Post Traumatic Stress Disorder (PTSD), Neuropsychiatry & Pain Imaging
• Standards For Experts
• Product Liability: Medical Devices & Pharmaceuticals, Toxic Tort
• Criminal Justice & Public Safety: Diminished Capacity, Drug Addiction, Competency to Confess, Death Penalty Mitigation, Workplace Safety
• Family & Custody Issues
• Testamentary & Contractual Capacity
• Professional & Organizational Ethics: Patient Care, Managed Care, Privacy
• Psychoanalysis & Cultural Perspectives

• Criminal Court Evaluations - Competence to Stand Trial, Assessment of Criminal Responsibility, NGRI Assessments
• Civil Court Evaluations - Personal Injury with Psychiatric symptoms, Brain Injury with Psychiatric symptoms, Malpractice related questions
• Family Court Evaluations - Involuntary Commitment, Guardianship, Testamentary Capacity, Undue Influence, Contractual Capacity, Fitness to Parent, Child Custody
• Third Party Forensic Evaluations - Fitness for Duty, Return to Work, Disability, ADA Accommodations, Medical Necessity, Independent Psychiatric Evaluations

Gloria Kardong, MD, DLFAPA, DABPN is a Board Certified Psychiatrist who has been in full time private practice in Palo Alto, CA for over 35 years, Licensed in 10 states. She is an Adjunct Clinical Associate Professor of Psychiatry and Behavioral Sciences at Stanford University Medical Center and a Distinguished Life Fellow of the American Psychiatric Association. Dr. Kardong offers Forensic Psychiatric litigation support services in civil and criminal cases to attorneys for Plaintiff and Defense. Her services include General Psychiatric Issues, Women's OB/GYN Issues, and Trauma/PTSD. Dr. Kardong has served as  a Psychiatric Consultant and Expert Witness for Stanford University Schools of Law and Medicine, the California Medical Board, and private attorneys nationwide. She has been retained as an expert over 25 times. Areas of Expertise: Forensic Psychiatry, General Psychiatry, women's health care, OB-GYN related psychiatric issues, eg postpartum depression, sexual abuse, sexual, physical and psychological trauma, PTSD, adoption. Personal injury. Medical malpractice. Discrimination. Psychological autopsy. Medical case review. Trial consultant.

Women's Health Care Specialist - Psychiatry / OB-GYN Interface:

Impaired Professionals:

• Physicians
• Mental Health Providers
• Attorneys
• Executives / Professionals
• Organizations

View Dr. Kardong's Consulting Profile.