Professional Malpractice (General) Expert Witnesses: 128

Paul M. Adler, DO, FACEP, MBA, Medical Director for the Ventura County, California, Department of Corrections, has worked in Correctional / Jail / Prison Medicine & COVID-19 Preparation & Response. He has overseen the care of inmates in Jails in California and New York, as well as Prison inmates who have been transferred to county facilities to serve their terms for years in county jails in California. He has also overseen Correctional health car in locked units in Hospitals . 

Dr. Adler is the President-Elect of The American Correctional Health Services Association of California / Nevada, which represents all clinicians and administrators in Jails/Prisons in California and Nevada. He previously oversaw a County Hospital, County Nursing Home and ran a County Health Department and oversaw Correctional healthcare for the Westchester, New York Jail.

Litigation Support - Dr. Adler has defended Jails and Prisons in Southern California, Idaho, Texas, North Carolina, New York, Pennsylvania, etc. He is currently the expert consultant to the California Prison System for Covid litigation and the medical consultant to the judicial consent decree overseeing care in the Philadelphia Department of Prisons. He also served as the expert consultant to the ACLU for Covid in the Illinois Department of Corrections

Dr. Adler still works as a full-time practicing physician and has helped attorneys and insurance companies in Emergency Medicine, Nursing Home Medicine, Public Health and Hospital Administration since 1985. He has been involved in Plaintiff litigation in many states including against Rikers Island, NY and Cook County Jail and is available to review and consult on clinical Correctional/Jail/Prison cases for attorneys for both Plaintiff and Defense.

Services:

• COVID-19 Preparation & Response
• Medical Oversight of Federal Consent Decrees
• Screen Cases for Merit
• Review, Analyze and interpret Medical Records
• Provide Basic or Comprehensive Written Reports
• Interpret Standards of Care, Deviation and Adherences as they Relate to Correctional Health Care
• Develop Chronological Time Lines
• Policy and Procedure Development

MCS Associates is a nationally recognized consulting group that has provided financial, operations and regulatory/compliance consulting services nationwide to financial institutions, insurance companies and regulatory agencies as well as real estate and financial services organizations for over 40 years. Expert Witness and Litigation Consulting are a primary focus of our services. We undertake expert witness assignments throughout the United States and our clients include several hundred leading law firms around the country, working on behalf of both plaintiff and defendant financial institutions, borrowers, depositors, investors, developers, insurance companies and their insured, securities/insurance/real estate brokers/agents, regulators and government agencies, and individuals. 

Together with MCS Associates’ specialized resources in banking, financial services and real estate, we also draw on key strategic alliances in insurance, economics, academia and the securities industry to meet a wide range of expert witness needs. Our litigation experts include experienced bankers, lenders, consultants, regulators, managers, brokers & agents in insurance, real estate, and securities; insurance claims and underwriting managers; economists, accountants, appraisers, real estate analysts, and academics. 

Areas of Expertise Include:

• Banking Operations/Administration
• Check Fraud
• Lending Policies, Custom and Practice
• Loan Underwriting & Credit Administration
• Loan Securitizations & Servicing
• Bankruptcy, Foreclosures and Workouts
• Trust & Fiduciary Issues / Operations
• Securities Brokerage & Investments
• Valuations & Damages Analysis
• Forensic Accounting
• Employment / Compensation
• Real Estate Brokerage & Management
• Title Insurance & Escrow
• Real Estate Appraisal & Transactions
• Insurance Industry Custom & Practice
• Insurance Coverages / Claims Handling
• Insurance Bad Faith

ARCHforensic specializes in providing Forensic Architecture, Forensic Engineering, and Construction Claims Services to help clients navigate the construction litigation process. While construction is complex, their experienced forensic architect and engineer professionals understand client needs and objectives. They are focused and committed to excellence in each project while exceeding expectations.

Christopher D. Ling, IA, NCARB, PP, LEED AP, is a Forensic Architect with extensive experience in construction litigation, risk management, and architectural design. He specializes in analyzing and resolving complex construction disputes, having written reports for over 1,000 cases involving $1 billion in claims. He has testified in mediations, arbitrations, and federal court cases.

Mr. Ling has an ability to distill and communicate intricate design and construction issues clearly has been instrumental in mediation, arbitration, and court proceedings. He has a hands-on approach to conducting physical inspections, preparing expert reports, and analyzing construction claims, which further solidifies my qualifications.

Areas of Expertise

Forensic Investigations Cost Estimating Construction Administration Architectural Risk Assessment Risk Management ADA Compliance

Code Analysis Building Envelope Master Planning Physical Inspections Construction Disputes Construction Defects

Background Experience - Mr. Ling has been involved in the construction industry since 1986, holding multiple architectural licenses and national certifications. His experience spans forensic investigations of construction defects, code analysis, master planning, and risk management for projects of all scales. Additionally, Mr. Ling published a book on the Architect’s Standard of Care and have presented seminars for legal and professional organizations.

Architectural Forensics Consulting is a team of highly skilled professionals is committed to delivering exceptional services in Architectural Forensics. They are a trusted forensic and consulting company with over 50 years of combined professional experience throughout the US. ArchiForensics offers a range of expert witness, building-related claim defense, building enclosure commissioning, architectural review consulting, and due diligence actions for property acquisition.

Litigation Support - Architectural Forensics Consulting opines on professional practice issues, Architect’s standard of care, contract dispute, breech of duty, and other practice areas often encountered in claims involving the Architect’s performance or construction related issues. With years of experience and a team of experts who are actively practicing Architects with current AIA, NCARB, BECxP, and CSI accreditations, they provide top-notch analysis and reporting to help clients make informed decisions about their particular case or project.

Areas of Expertise:

Building Design and Construction Architectural Review Construction Defects Building Enclosure Failure Property Condition Assessments ADA Evaluations Water Infiltration

Roof Failure Window Failure Microbial Growth / Mold Failure Analysis Slip Trip & Fall Moisture / Condensation Issues Flood Damage, Building Inspection

Dan Weekes, AIA, NCARB, BECxP, CxA+BE, has over 25 years of Architectural and Engineering Building Envelope and consulting project management as well as litigation and deposition proceedings.

Mr. Weeks is responsible for many different types of investigations, forensic evaluations, and providing consulting services surrounding all areas of building design and construction. His focus is serving as an expert witness, building enclosure evaluations and commissioning, water infiltration investigations, architectural review consulting, property condition assessments, ADA evaluations, and construction administration services associated with construction and design.

As a licensed Architect, he also has experience with the design of new facilities and the implementation of repair programs to existing residential, commercial, and institutional facilities.

Jim Stutzman, AIA, NCARB, CSI has over 45 years of exceptional Building Construction and Investigative Design work with an emphasis on expert litigation cases and design coordination.

Mr. Stutzman is a Forensic Architect providing forensic analysis of building related claims, moisture intrusion claims, component problem and failure analysis, standard of care evaluation, dispute resolution, construction products liability, investigative analysis, reconstruction, cost-impact analysis and supporting documentation, timelines, and exhibits supporting claims for losses and remedy determination in courtroom and private settlements.

Forensic consulting services are focused on defense attorneys, insurance companies, financial institutions, developers, municipalities, and private clients.

View Architectural Forensic Consultants Business Consulting Profile.

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:

Fitness for Duty Wrongful Termination Psychiatric Disability Depression Anxiety PTSD Competency Dementia Cognitive Behavior Emotional Distress

Pain and Suffering Standard of Care Institutional Care Medical Malpractice Discrimination Harassment Hostile Workplace Pre-employment Evaluation Security-sensitive Security Clearance

Tyla A. DiMaria has a Master of Science in Nursing (MSN), with over 25 years of experience in Serious Injuries and Catastrophic Illness within various clinical settings, management, work comp, and home care. Ms. DiMaria is a Registered Nurse certified in Case Management as well as Life Care Planning. She has owned her own homecare company since 2008.

As Principal of Best Care Life Solutions, based in Carlsbad, California, Ms. DiMaria reviews medical records, performs past billing analysis, consults and collaborates with physicians and other health professionals to formulate future care needs and Life Care Plans for patients with catastrophic injuries and chronic illness.

Ms. DiMaria provides nationwide services to both plaintiffs and defense attorneys. Expert Witness Services include Independent Medical Evaluations, Depositions, and In-Court Testimonies.

Areas of Expertise:

Life Care Plans Life Care Plan Rebuttals

Standard of Care Reports Cost Comparisons

The Life Care Plan is crucial to individuals with injuries or chronic conditions requiring complex long-term healthcare intervention and management. It is an integrative plan for individuals with disabilities or chronic health conditions that includes items and services required, along with specific costs that addresses current and future needs. The Life Care Plan includes estimates for the current and future healthcare needs of individuals along with the associated costs.

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.

Elbridge F. Bills, MD, FACOG, is a board certified OB/GYN with over 20 years of clinical experience in Obstetrics & Gynecology. Dr. Bills is a graduate of Emory Medical School and received a Master's degree in Metabolic & Nutritional Medicine from the University of South Florida.

With a full-time practice caring for and managing low and high risk pregnancies and deliveries, Dr. Bills also has an active gynecological practice including hysteroscopic, laparoscopic, and robotic procedures. He is licensed in both Georgia and Florida.

Dr. Bills is Board Certified by the American Board of Obstetrics and Gynecology, a member of the American Association of Gynecological Laparoscopists, the American Institute of Ultrasound in Medicine, and the International Society of Ultrasound in Obstetrics and Gynecology.

Litigation Support - Dr. Bills offers expert witness services to attorneys representing plaintiff and defense. He is available for cases involving medical malpractice and other OB-GYN related injuries. His services include medical record review, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

Normal & High Risk Pregnancies Hysteroscopic Gynecology Laparoscopic Gynecology Reconstructive and Robotic Surgery

Gynecological Ultrasound Integrative Medicine Hormone Therapy Testosterone Therapy

Marguerita M. Cheng, CFP®, CRPC®, RICP®, Chief Executive Officer at Blue Ocean Global Wealth, is a Certified Financial Planning Expert with 18 years of experience. Prior to co-founding Blue Ocean Global Wealth, she was a Financial Advisor at Ameriprise Financial and an Analyst and Editor at Towa Securities in Tokyo, Japan. Ms. Cheng is a past spokesperson for the AARP Financial Freedom Campaign and a regular columnist for Investopedia & Kiplinger. She is a CFP® professional, a Chartered Retirement Planning CounselorSM, a Retirement Income Certified Professional® and a Certified Divorce Financial Analyst. As a Certified Financial Planner Board of Standards (CFP Board) Ambassador, Ms. Cheng helps educate the public, policymakers, and media about the benefits of competent, ethical financial planning. She served on the Financial Planning Association (FPA) National Board of Directors from 2013 – 2015 and is a past president of the Financial Planning Association of the National Capital Area (FPA NCA). 

Marguerita Cheng CNBC Interview on Social Security 

Awards and Honors - Ms. Cheng is a recipient of the Ameriprise Financial Presidential Award for Quality of Advice and the prestigious Japanese Monbukagakusho Scholarship. In 2017, she was named the #3 Most Influential Financial Advisor in the Investopedia Top 100, a Woman to Watch by InvestmentNews, and a Top 100 Minority Business Enterprise (MBE®) by the Capital Region Minority Supplier Development Council (CRMSDC).

Litigation Support - Ms. Cheng serves as a Women’s Initiative (WIN) Advocate and subject matter expert for CFP Board, contributing to the development of examination questions for the CFP® Certification Examination. She also volunteers for CFP Board Disciplinary and Ethics Commission (DEC) hearings. Services to attorneys representing plaintiff and defendant include financial due diligence, thorough reporting, depositions, and trial testimony as needed.

Areas of Litigation Expertise:

Financial Planning Issues Social Security Elder Financial Abuse

Financial Planner Standard of Care Financial Planner Code of Ethics Investor Rights

Bryan L. Parker, CPA/PFS, CFP, CLU, ChFC, CASL, FCPA, is a Certified Forensic Accountant with over 30 years of experience in his field. Background - Prior to founding Bryan L. Parker, CPA, LLC, Mr. Parker held the position of CFO at McPherson Oil Company ($300 million + annual revenues) where he was responsible for advising and negotiating banking relationships, acquisition review, acquisition integration, financial reporting, and interaction with external auditors. His experience also includes serving as VP of Mergers & Acquisitions for Citation Corporation (Public Co.) and CFO of TIC United Corp., Dallas, TX ($300 million + revenues).

Mr. Parker has performed business valuations for more than 100 businesses in a variety of industries including manufacturing, trucking, printing, fuel oil distribution, motor/lubricating oil distribution, professional services, restaurants, fast food franchises, metal foundry, metal forge, machining, and plastic injection molding.

Litigation Support - Mr. Parker provides expert witness services to attorneys representing both plaintiff and defendant. He offers Forensic Accounting services, written reports, deposition, and trial testimony as needed.

Areas of Expertise:

Forensic Accounting Money Tracing Business Valuations

Divorce Settlements Business Damage Analysis Earning Capacity

View Bryan Parker's Consulting Profile.

Duane M. Bryant MD, MS, is a seasoned Ophthalmologist certified by the American Board of Ophthalmology. Dr. Bryant has over 30 years of clinical and surgical experience with Cataracts, Glaucoma, Laser Surgery For Glaucoma, Laser Surgery for Diabetic Retinopathy, Laser Surgery for Central Vein Occlusion and Branch Retinal Vein Occlusion, and Intravitreal Avastin Injections.

Regularly participating in Continuing Medical Education courses, Dr. Bryant's expertise is cutting edge. In 2014 alone, he attended the Retinal Physician Symposium, the Kiawah Eye Meeting, the Diabetic Retinopathy and Vein Occlusion, and Current Concepts in Ophthalmology. 

Litigation Support - Dr. Bryant has been involved in expert witness, peer chart review, and IME work for over 10 years. His services are available to counsel representing both Plaintiff and Defense.

Consultative / Forensic Experience:

Cataract Surgery Glaucoma Laser Surgery Ocular Trauma

Diabetic Retinopathy (Medical and Laser Treatment) Vein Occlusion (Medical and Laser Treatment) Life Care Planning for cases of Visual Impairment See Case Descriptions

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:

Respiratory Diseases Asthma Immunologic and Allergic Disorders Dermatologic Diseases Allergic Skin Diseases

Allergic Drug Reactions Skin Cancers Health Effects from Toxic Mold Mycological Diseases Allergic Pulmonary Disease

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.

Clive M. Segil, MD, FACS, FRCS is an internationally renowned Orthopedic Surgeon with 45 years of experience in the management of Musculoskeletal Disorders. He practices orthopedic surgery, treating all orthopedic conditions.

Dr. Segil is on the staff of Cedars-Sinai Medical Centre, St Johns Hospital Medical Centre, Valley Presbyterian Hospital.

He is in active practice in the Los Angeles, with offices in Century City, Encino, Lawndale, Glendale, Lancaster, Pomona. He is a past assistant clinical professor of orthopedics at the University of Southern California School of Medicine and a past Clinical Chief of Orthopedics at Cedars-Sinai Medical Center.

Dr. Segil completely understands the forensic system, is comfortable and confident in presentation and trial appearance, and is not intimidated by court proceedings. He has experience in all aspects of Orthopaedic Surgery. He is familiar with the new changes in the Workers' Compensation arena, including using the AMA guidelines, the ACOEM guidelines, and the American Academy of Orthopedic Surgery guidelines for spine problems.

Dr. Segil testifies for defense and plaintiff cases with an unbiased, erudite, understandable, and logical argument to support the facts and evidence. He has provided unbiased, detailed, ratable, and credible reports concerning injured workers and has given an honest opinion as to their condition, causation, prognosis, disability, and apportionment in a precise organized manner.

View Dr. Segil's Consulting Profile.

Wayne Citron has 45 years of experience as an expert in Forensic Reconstruction of Insurance Transactions. He is an insurance expert and consultant. Litigation Support - Wayne Citron specializes in policy interpretation of the rules, laws, and regulations governing insurance and financial matters. His services are available to attorneys representing plaintiff and defendant and include effective reports, affidavits, depositions, and testimony as needed. Areas of Expertise:

Insurance Bad Faith Insurance Customs and Practices Insurance Health / HMO / Disability

Insurance - Life & Annuities Property / Casualty Insurance Insurance Agents & Brokers - Standard of Care

Mr. Citron established the Citron Agency and CMC Advisors Inc. in 1972, where his duties included executive and managerial responsibilities, sales, service, compliance with all insurance matters as well as securities laws and regulations. Both firms are leaders in life, health, disability and property and casualty insurance. Mr. Citron is an expert in all forms of insurance, including:

Life Insurance Health Insurance Property and casualty Insurance Disability Insurance Annuities Retirement, IRAs & Pensions

Flood Insurance Broker Malpractice / Bad Faith Profit Sharing Group Coverage Self-insurance Insurance Laws / Regulations

Mr. Citron has served as an instructor for Prudential Insurance Company Brooklyn Agency (1973) educating personnel in general insurance matters, underwriting, and insurance law. He has worked with companies including Prudential Insurance Company, United States Life Insurance Company, North American Company for Life and Health Insurance, American General Life Insurance Company, William Penn Life Insurance Company, American Life Insurance Company, Chubb Insurance Company, Travelers Insurance Company, Mass Mutual Insurance Company, John Hancock Insurance Company, and American International Group (AIG), among other. View CMC Advisors' Consulting Profile.