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Meet our corporate medical director Marilyn Bishop, MD

Dr. Bishop is a certified Medical Review Officer at the Johnson City, Tenn., office of MedWorks. She is a certified medical review officer and an FAA airman examiner, and is certified by the American Board of Preventive Medicine, with a subspecialty in occupational medicine. She is a member of the American College of Occupational and Environmental Medicine. Dr. Bishop received her medical degree from Memorial University of Newfoundland, Canada, and completed her residency at Good Samaritan Hospital, Wright State University, Dayton, Ohio. She holds a Masters of Public Health degree from East Tennessee State University, Johnson City, Tenn.

Our team

Our expert team consists of occupational health physicians, specially trained nurses and technicians. Our certifications include urine drug screen collection, breath alcohol testing and the Council for Accreditation in Occupational Hearing Conservation. We follow an aggressive return-to-work philosophy and provide immediate worker injury evaluation and management along with prompt communication with employers. We believe protecting employee health with programs designed to facilitate employee safety, prevent injury and promote wellness is of critical importance. MedWorks partners with businesses to facilitate work-related healthcare needs.

Our objectives

  • Preserve employee productivity
  • Prevent re-injury
  • Reduce disability
  • Provide effective, efficient, predictable injury treatment
  • Decrease replacement training costs
  • Identify ways to increase employee health and well-being

For more information or questions about our services, please email us at

Authorization Forms and Maps
Medical Surveillance Programs
  • OSHA Compliance Exams
    • Audiometric Testing
    • Questionnaires/respiratory clearance/certification
    • Silica/asbestos/lead surveillanc
    • Hazardous waste
    • Hazwoper exams
    • Bloodborne pathogen exposure
    • Pulmonary Function Testing
  • Drug and alcohol programs
  • Annual/post-offer physicals
  • Post Exposure Services
  • Functional Capacity Exams
  • Basic physicals
  • Basic physicals with MS
  • Independent medical evaluations
On-site Services
  • Immunizations
  • Titers
  • Breath Alcohol - available on-site after clinic hours
  • Urine Drug Screens - available on-site after clinic hours
  • Basic Physicals
  • Hep B Vaccinations
  • Respirator Fit Tests
  • Corporate Medical Advisors
Comprehensive Physicals
  • Firefighters
  • Policemen
  • FAA
  • Department of Transportation (DOT)
  • Specialized Comprehensive Exams
Our Locations


200 Med Tech Parkway, Ste. 108
Phone: 423-915-5124
Fax: 423-915-5045
Mon. through Fri.: 8 a.m. to 6 p.m.
Sat.: 8 a.m. to 4 p.m./span>


395 Forrest Circle, Suite 100
Phone: 423-753-0721
Fax: 423-753-0751
Mon. through Fri.: 8 a.m. to 6 p.m.


1101 E. Stone Drive
Phone: 423-224-1118
Fax: 423-224-1130
Mon. through Fri.: 8 a.m. to 8 p.m.
Sat. and Sun.: 8 a.m. to 6 p.m.


4600 Fort Henry Drive
Phone: 423-224-3950
Fax: 423-224-3959
Mon. through Fri.: 8 a.m. to 8 p.m.
Sat. and Sun.: 8 a.m. to 6 p.m.


1497 W. Elk Ave
Phone: 423-542-8929
Fax: 423-542-8621
Mon. through Fri.: 8 a.m. to 8 p.m.
Sat. and Sun.: 8 a.m. to 6 p.m.


603 Campus Drive, Suite 100
Phone: 276-628-1654
Fax: 276-619-9655
Mon. through Fri.: 8 a.m. to 6 p.m.
Sat. and Sun.: 8 a.m. to 6 p.m.


1418 Park Ave. NW
Phone: 276-439-1440
Fax: 276-439-1441
Mon. through Thur.: 8 a.m. to 5 p.m.
Fri.: 8 a.m. to noon