About
Dr. Thomas Morrison brings 25 years of medical experience to his patients in Key Largo, FL. He graduated from a top-15 medical school in 1995, completing an internal pathology fellowship equivalent to his first year of residency while still there. After graduation, he spent six years in New Orleans, where he rotated as a surgeon for 18 months before shifting toward emergency medicine. Within two years of leaving surgery, he became Medical Director of a rural emergency department. He later gained experience in occupational health through work with Lockheed Martin and the Merchant Marine, and served in urban emergency departments before returning to Miami.
Dr. Morrison completed a three-year Family Medicine residency at the University of Miami/Jackson, earning several recognitions during that tenure. In 2003 he joined Jackson South Community Hospital full-time while continuing emergency medicine work. He moved to Key Largo in 2015 and served as Medical Director of the Emergency Room at Mariners/Fishermen's Hospital until 2019. He still works part-time as an emergency physician at both hospitals. He founded Doc On The Rock in 2020 to build the kind of comprehensive, attentive care that a genuine doctor-patient relationship makes possible. His clinical passions include thyroid disease, infectious disease, Dengue Fever, and preventive medicine.
Education & Training
Medical School
Top 15 medical school (name not specified); completed internal pathology fellowship equivalent to first year of residency
Residency
Family Medicine, University of Miami/Jackson (3-year program)
Fellowship
Internal pathology fellowship (equivalent to first year of residency, completed during medical school)
Additional Training
Surgery rotation (18 months, New Orleans); Occupational Health (Lockheed Martin and Merchant Marine)
Conditions Treated
Who is Dr. Morrison right for?
Dr. Morrison serves adults and children in the Key Largo area who want a consistent relationship with a single physician. Patients managing chronic conditions like hypertension or hypothyroidism benefit from his attentive, longitudinal approach. Those who need urgent care guidance or infectious disease management, including Dengue Fever, find his emergency medicine background particularly valuable. His flexible scheduling suits working adults who cannot make standard office hours.
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Frequently Asked Questions
Dr. Morrison treats a broad range of primary care conditions, including hypertension, hypothyroidism, and infectious diseases such as Dengue Fever. He also handles urgent care needs and provides occupational health guidance. His emergency medicine background allows him to assess and triage concerns that might otherwise require an ER visit.
Dr. Morrison trained in Family Medicine through a three-year residency program at the University of Miami/Jackson, one of the country's leading academic medical centers. He earned several recognitions during his residency. His clinical background also includes an internal pathology fellowship and extensive emergency and occupational medicine experience spanning 25 years.
Dr. Morrison prioritizes the relationship between patient and physician as the foundation of good outcomes. He focuses on big-picture, comprehensive care rather than isolated or reactive treatment. He responds to patients within six hours by text or phone and schedules visits at times that work for each patient's schedule.
Dr. Morrison has been practicing for 25 years. He graduated medical school in 1995 and has since worked in surgery, rural and urban emergency medicine, occupational health, and family medicine. He founded Doc On The Rock in 2020 to bring that breadth of experience into a direct primary care setting.
Yes, emergency medicine has been central to Dr. Morrison's career. He became Medical Director of a rural emergency department within two years of completing his surgery rotation. He later served as Emergency Room Medical Director at Mariners/Fishermen's Hospital in Key Largo and still works part-time as an emergency physician at both Mariners and Fishermen's Hospital.
Dr. Morrison gained occupational health experience through work with Lockheed Martin and the Merchant Marine. This background gives him practical knowledge of workplace-related health concerns and the ability to address occupational health needs within his primary care practice.
Yes, thyroid disease is one of Dr. Morrison's core clinical interests. He actively manages hypothyroidism and monitors patients using TSH and T4 markers. He approaches thyroid care as part of a broader, ongoing health relationship rather than a one-time intervention.
Dr. Morrison responds within six hours of receiving a text or phone call. Patients can also reach him by email. If they have not heard back within that window, he encourages them to follow up directly. His response times reflect the direct-access model Doc On The Rock is built on.
Doctor profile last updated June 11, 2026