Controlled Substance Expert Witnesses

Corona, California

Psychiatry, Family Medicine - Psychiatric-Mental Health Nurse Practitioner, Family Practice, Scope of practice, Internal Medicine, Standard of care, Polypharmacy and monitoring failures, Failure to assess suicide risk, Psychiatric care in residential hospital IOP or SNF environments, telepsychiatry, Controlled substance, Obesity, NP education

Christy Cotner, DNP, FNP-BC, PMHNP-BC Psychiatric and Family Practice Expert Witness 25+ Years Clinical Experience | Dual Board-Certified NP | DNP-Prepared Professional Summary: I am a dual board-certified Family and Psychiatric-Mental Health Nurse Practitioner with more than 25 years of direct clinical experience in primary care, internal medicine, urgent care, pediatrics, and outpatient psychiatry. I hold a Doctor of Nursing Practice (DNP) degree and currently serve as Director of the PMHNP graduate program at Western University of Health Sciences. My clinical background includes acute and chronic disease management, preventive care, triage and escalation of illness, crisis assessment, psychiatric evaluation, and medication management across the lifespan. As an expert witness, I provide clear, objective, and evidence-based opinions for both plaintiff and defense in cases involving primary care standards of care, psychiatric medication management, delayed or missed diagnosis, pres...

Oakland, California

Pharmacist - Antimicrobial, Infectious Diseases, Pharmacokinetics, Pharmacodynamics, Antimicrobial Resistance, Patient Care, Recreational drugs, Drug Interactions, Opioid Pain, Hospital Pharmacy, Drug Levels, Medication Error, Pain Medication, Medication Overdose, Underdose, Medication Interaction, Controlled Substance, Pharmacotherapy

Matthew Labreche, MSc, PharmD, is an experienced pharmacist with 12 years of experience in infectious diseases pharmacotherapy. He specializes in antimicrobial stewardship, pharmacokinetics/pharmacodynamics, antimicrobial resistance, and patient care. Matthew holds a Doctor of Pharmacy from Northeastern University and a Master’s of Science in Pharmacy from the University of Texas at Austin. He has served as an Infectious Diseases Clinical Specialist and Antimicrobial Stewardship leader in public and private health systems, overseeing their development and expansion and guiding them through Joint Commission evaluation. Additionally, Matthew has experience working on Infection Control, Sepsis, Surgical Infection, and Quality Improvement committees. Furthermore, Dr Labreche has served as a preceptor for pharmacy students and pharmacy residents and routinely provides lectures for departments of medicine and surgery.

Louisville, Kentucky

Pain Management - Medicine, Addiction Medicine - Chronic pain, Pain Management, addiction, opioids, substance abuse, Suboxone, MAT, MOUD, prescribing, controlled substance, DEA, medical board, regulations, overdose, preventive medicine, standards, harm reduction, anesthesiology, interventional pain, naloxone

James Patrick Murphy, MD, MMM, DFASAM is a nationally recognized physician leader and expert in Pain Management, Addiction Medicine and controlled substances prescribing. He is a Past President of the Kentucky Society of Addiction Medicine and is the American Society of Addiction Medicine’s representative on the influential American Medical Association Substance Use & Pain Care Task Force. Dr. Murphy is also the Southeastern United States Regional Director (Region X) for the American Society of Addiction Medicine. Dr. Murphy is founder & CEO of Murphy Pain Center, located in New Albany, Indiana. Additionally, he teaches medical students, residents, and colleagues as an Assistant Clinical Professor on faculty at the University of Louisville School of Medicine. Dr. Murphy is a past president of the Greater Louisville Medical Society and currently serves on the board of directors of the Greater Louisville Medical Society Foundation. He also the Co-director and medical prescriptiv...

Seattle, Washington

Addiction Medicine, Family Medicine - Opioid Use Disorder, Controlled Substance, Suboxone, Standard of Care – Addiction, Buprenorphine, Substance Use Disorder (SUD, Medication Assisted Treatment (MAT), Methadone, Urine Drug Screens (UDS), Diversion Risk, OTP Compliance (Opioid Treatment Programs), Non-testifying Chart Review, Opioid Prescribing

Board-certified addiction medicine physician with a background in family medicine. I provide informal, non-testifying documentation review in cases involving opioid use disorder, buprenorphine/Suboxone treatment, methadone, urine drug screening, diversion risk, and compliance with OTP and MAT standards of care. I serve as Medical Director of multiple opioid treatment programs in Washington and Oregon. My experience includes peer review, protocol development, and clinical compliance evaluation. I also advise on documentation workflows and UDS interpretation for patients with complex SUD and co-occurring conditions. Available for behind-the-scenes record review, early case screening, and internal feedback on standard of care. I do not provide testimony or signed expert reports at this time. Licensed in WA and OR.