About
Dr. Letitia Horrigan is a board-certified internist and co-founder of Rhode Island Direct Primary Care in North Kingstown. S. in Biology from the University of Rhode Island. She went on to complete her Doctor of Osteopathic Medicine at the University of New England College of Osteopathic Medicine in Biddeford, Maine.
Dr. Horrigan has cared for adults in outpatient primary care since 2011. She is passionate about disease prevention, early detection, and personalized lifestyle guidance. Her clinical focus includes hypertension, diabetes, heart disease, thyroid disease, asthma, arthritis, anxiety, depression, obesity, and high cholesterol. Outside the clinic, she is married with a daughter and a dog. She enjoys running, boating, paddleboarding, and surfing along the Rhode Island coast, and she snowboards in the winter.
Education & Training
Undergraduate
University of Rhode Island, B.S. Biology
Medical School
University of New England College of Osteopathic Medicine, Biddeford, Maine
Certifications
Conditions Treated
Who is Dr. Horrigan right for?
Dr. Horrigan is a strong fit for adults managing chronic conditions like hypertension, diabetes, thyroid disease, or heart disease. Patients who want a consistent provider for both preventive care and ongoing disease management will find her approach well-suited to their needs. She also treats anxiety, depression, obesity, and high cholesterol. Adults seeking a primary care physician who takes time to address lifestyle factors alongside clinical concerns will benefit from her focus on early detection and personalized guidance.
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Dr. Letitia HorriganD.O.
Primary CareFrequently Asked Questions
Dr. Horrigan treats a broad range of adult conditions. Her clinical focus includes hypertension, diabetes, heart disease, thyroid disease, asthma, arthritis, COPD, anxiety, depression, obesity, and high cholesterol. She also handles acute concerns such as upper respiratory infections, strep throat, UTIs, skin rashes, and muscle sprains.
Yes. Dr. Horrigan holds board certification in Internal Medicine. She earned her Doctor of Osteopathic Medicine from the University of New England College of Osteopathic Medicine in Biddeford, Maine.
Dr. Horrigan has cared for adults in outpatient primary care since 2011, giving her over 14 years of experience. She has worked exclusively in primary care throughout her career.
Dr. Horrigan emphasizes early detection and proactive health management. She conducts annual physicals, cancer screenings for breast, colon, lung, and prostate cancers, cervical cancer screenings, and blood pressure monitoring. She also provides nutrition and exercise counseling alongside clinical care.
Yes. Dr. Horrigan manages anxiety and depression as part of her primary care practice. She addresses mental health alongside physical health as an integrated part of each patient's overall care.
Yes. Dr. Horrigan offers weight and obesity management as part of her clinical services. She incorporates nutrition and exercise counseling to help patients build sustainable, long-term health habits.
No. Rhode Island Direct Primary Care does not prescribe or manage long-term treatment involving controlled substances. Patients who require that type of management should work with an appropriate specialist.
Dr. Horrigan grew up in Rhode Island and completed her undergraduate degree in Biology at the University of Rhode Island. She then earned her DO from the University of New England College of Osteopathic Medicine in Biddeford, Maine.
Doctor profile last updated June 9, 2026