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 Expert  726980

Expert in Pulmonary Medicine, Occupational Medicine, Internal Medicine Including

Available for your Consulting and Expert Witness Needs

California (CA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert is a pulmonary specialist with board certifications in Internal Medicine and Pulmonary Diseases in both the United States and Canada. He currently serves as Associate Professor of Medicine at the UCLA School of Medicine and Associate Attending Physician at Cedars Sinai Medical Center where he is involved in teaching fellows, residents, interns and medical students. A Fellow of the Royal College of Chest Physicians and member of the American Thoracic Society, Expert has been actively engaged in the clinical practice of internal medicine and cardiorespiratory diseases and directly involved in providing treatment, management and disability evaluations of individuals with various respiratory disorders for over 25 years. He also serves as consulting pulmonary specialist at UCLA and UC Northridge Student Health. He also has been actively involved in the evaluation and medical assessment of individuals with a wide variety of work-related lung disorders and toxic exposures and has performed thousands of such med-legal evaluations.

Expert has authored several books, articles and manuals on asthma, asbestos, pneumoconioses, respiratory care, lung diseases and work, lung function testings, management of respiratory disorders and others. He is a graduate of the Mount Sinai School of Medicine, and did his training in internal medicine at Boston City Hospital. He then spent three years doing a fellowship at McGill University where he specialized in respiratory diseases. He is a Qualified Medical Evaluator for the Workers Compensation Board, State of California.








cardiopulmonary disease


chronic obstructive pulmonary disease


chronic respiratory disease


clinical medicine


coal mine


fungal spore


interstitial lung disease




lung cancer


lung disease


lung tumor


Mycobacterium tuberculosis




pulmonary edema


pulmonary fibrosis


pulmonary function test


pulmonary medicine


pulmonary tuberculosis


respiratory care


respiratory disease


respiratory hypersensitivity


respiratory system


respiratory tract infection


smelter dust



Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Los Angeles, California;  Long Beach, California;  Santa Ana, California;  Anaheim, California;  Riverside, California;  Bakersfield, California;  Glendale, California;  Huntington Beach, California;  San Bernardino, California;  and Oxnard, California.

Year   Degree   Subject   Institution  
1974   MD   Medicine   Mt Sinai School of Medicine  

Work History:
Years   Employer   Title   Responsibilities

1980 to




MD, Specialist in Pulmonary Diseases and Internal Medicine


Dr Zagelbasum is medical specialist in pulmonary diseases and internal medicine and directly involved in providing treatment, management, and evaluations of patients.

1980 to 2006




Consulting Pulmonary Specialist


Expert provided medical expertise and consultative input for UCLA staff and students with various respiratory disorders such as asthma, tuberculosis, obstructive lung disease, pulmonary infections, etc.

2006 to 2009


Cal State Northridge


Consulting Pulmonary Specialist


Expert provided medical expertise and consultative input for Cal State Northridge staff and students with assorted respiratory disorders.

Career Accomplishments:

American Thoracic Society American College of Chest Physicians Royal College or Chest Physicians American Board of Internal Medicine American Board of Pulmonary Disease Qualified Medical Examiner for Workers Compensation, State of California


MD Diplomate, Americn Board of Internal Medicine Diplomate, American Board of Pulmonary Diseases Fellow, Royal College of Chest Physicians

Professional Appointments

Associate Professor of Medicine, UCLA School of Medicine Associate Attending, Cedars Sinai Medical Center

Medical/Professional Internships

Boston City Hospital McGill University,Royal Victoria Hospital Meakins Christie Laboratory UCLA School of Medicine

Publications and Patents Summary

Manual of Acute Respiratory Care Asbestos Related Health Issues Lung Diseases and Work Asthma and the Workplace Basic Arterial Blood Gas Interpretation

Selected Publications and Publishers  
 - Workers Compensation Reporter  
 - VN Publications  
 - ORS Publications  
 - Little Brown and Company  

Government Experience:
Years   Agency   Role   Description
1995 to   State of California, Department of Workers Compensation   Qualified Medical Examiner   Expert provides medical evaluations and disability assessments for State of California for workers with suspected work related illnesses and disabilities
1986 to   City of Los Angeles   Independent Medical Evaluator   Expert provides medical evaluations and disability assessments for workers employed by the City of Los Angeles (Fireman, Policemen, etc)
1988 to 1994   Rapid Transit Authority, City of Los Angeles   Respirator Certification Specialist   Expert provided medical evaluations and clearences for City and State workers whose job necessitated use of a respitator (such as diesel mechanics, painters, etc)

Consulting Services:
Selected Consulting Examples:
  • Expert has been recruited by State of California, City of Los Angeles, Boeing, Hughes Aircraft, McDonald Douglas, Johns Mansville, enumerable large companies, attornies, insurance companies, etc to provide medical expertise regarding cases of alleged toxic inhalation and concerns about illness caused by toxic exposure at work.
  • Expert has consulted and and provided expert medical testimony on thousands of cases of alleged asbestos related health problems, occupational asthma and other pneumonconioses.
  • Expert has provided disability evaluations of thousands of workers where levels of impairment are at issue.
  • Expert has been asked on many occasions to review medical records and offer an opinion as to whether he agrees with the initial determination as the the nature and cause of various medical illnesses and whether they were caused by harmful exposure.
  • Expert has often been asked to review death cases and provide either an initial or second opinion as to the cause of death and whether it was attributable to work.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Over the past 25 years Expert provided med-legal evaluations and consultative advice for lawyers, insurance companies, State Disability Boards, Worker Compensation Board, Major Companies in cases of suspected lung injuries due to exposure at work and product liability (eg. asbestos, silica, occupational asthma, mesothelioma, pneumoconioses, occupational cancer, etc). In addition to provided comprehensive reviews of case evidence and written reports, this has also included deposition statements and expert medical testimony in court.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1977 to 1980   Canada   Dr Zagebaum spent 3 years at McGill University studying lung diseases.
1984 to   International Olympics   Expert was on the attending medical staff for the International Olympics in

Language Skills:
Foreign Language  

Additional Skills and Services:

Over the years, Expert has provided teaching seminars and educational sessions to defense and applicant lawyers, claims examiners, paralegals, judges, insurance reps, physicians, and medical trainees on a wide variety of occupational and nonoccupational lung issues. These include subjects such as asbestos-related lung disorders, silica-related health issues, occupational asthma, toxic exposure, cancer and the workplace, lung function testing, and many others.

Other Skills and Services

Expert continues to serve a Qualified Medical Examiner for the State of California as well as an Agreed Medical Examiner and Independent Medical Examiner and Disability Evaluator. Over the years, he has performed many thousands of these types of evaluations


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