Medical Services

Mason Harrell, MD is currently the Medical Department Head and Flight Surgeon of the Naval Operations Support Command, North Island and VR-57. He is from Southern California and is a graduate of the U.S.
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American Analytical Medical Services, Inc. (AAMS) headquartered in San Diego, is a nationwide network of physicians providing healthcare and expert medical services
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Dr. Mason Harrell

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Harvard-trained, award-winning, double board-certified physician in Occupational Medicine, and Public Health and General Preventive Medicine. Medical expert work with the Massachusetts Institute of Technology (MIT), the World Health Organization (WHO), American College of Occupational and Environmental Medicine, and MDGuidelines®. Published original research on “Return to Work” in the Journal of Occupational and Environmental Medicine. Created and teaches the U.S. Navy’s Occupational and Environmental Medicine Fundamentals Course. Currently, active duty Navy Lieutenant Commander, Medical Department Head, and Flight Surgeon supervising 75 medical professionals. Volunteer “House Doctor” for the San Diego Symphony and published in the Journal of Infectious Disease with the WHO on Ebola infections in health care workers.

Expert in occupational injuries and illness, including chemical exposures and sensitivities, heat injuries, environmental intolerances, asbestos, dust, mold, air quality, heavy metals, radiation, toxicology, causation, fitness for duty, return to work, malingering, work stress, disability, chronic pain, primary care, and urgent care.





  • Harvard Occupational and Environmental Medicine medical residency

  • Master of Public Health, HARVARD School of Public Health

  • Harvard Research Fellow in Environmental Medicine, Occupational Medicine, and Epidemiology, Department of Environmental Health

  • World Health Organization – Global Occupational Health Program and Infection Prevention and Control, Ebola Response Team

  • Massachusetts Institute of Technology medical expert consultant in developing technologies to support Humanitarian Assistance and Disaster Relief

  • Navy Lieutenant Commander and Medical Division Officer, active duty since 2004

  • NATO medical liaison, US Naval Air Station Sigonella, Italy

  • Doctor of Medicine at the US Military Medical School, USU, in Bethesda Maryland

  • Practice Guidelines Medical Advisory Board Member, American College of Occupational Medicine/MDGuidelines

  • Board Certified in Public Health and General Preventive Medicine

  • Board Certified in Occupational Medicine

  • Transitional Internship at Naval Medical Center San Diego

  • Created and teaches the U.S. Navy’s Occupational and Environmental Medicine Fundamentals Course

  • Winged Navy Flight Surgeon

  • Aerospace Medicine Department Head; Italian – American Medical Liaison of US Naval Air Station Sigonella Italy

  • Group Surgeon Marine Air Control Group; Deployed with Marines to East Africa

  • Spanish major at Brigham Young University in Provo, Utah; Spanish Language Instructor at the University’s full immersion language center

  • Navy and Marine Corps Commendation Medal

  • Navy Marine Corps Achievement Medal

  • San Diego Symphony House Doctor

  • Coronado California Rotarian





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Chronic Pain


Chronic pain is often defined as any pain lasting more than 12 weeks.

Heat Injuries


Heat illness that results in a body temperature greater than 40.0 °C and confusion.

Urgent Care


Rendered in both the primary care setting and at dedicated Urgent Care Facilities



Radiation injury is damage to tissues by exposure to ionizing radiation.



Toxicology is the scientific study of effects that occurs due to chemicals.



The condition of being disabled.

Primary Care


Non-specialized health care rendered in the general practice of medicine



Exaggerate or feign illness in order to escape duty or work.

Dr. Harrell’s Specialities

Occupational Medicine

Indoor Air Quality

Public Health

Preventive Medicine

Occupational Illness

Causation Analysis

Workers’ Compensation

Chemical Sensitivities

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