About
Frank J. D. is the Medical Director and founding physician of St. Francis Sleep, Allergy & Lung Institute in Clearwater, Florida. He graduated from New York Medical College in 1985 and completed his internship and residency in Internal Medicine at the Cleveland Clinic Foundation. He then pursued fellowship training in both Pulmonary and Critical Care Medicine and Allergy and Immunology at Johns Hopkins University. Johns Hopkins also awarded him a degree in the Business of Medicine. He earned a Juris Doctor from Stetson University School of Law and holds membership in the Florida Bar, through which he offers expert witness and medical-legal consultation.
Dr. Averill holds board certifications in Internal Medicine, Pulmonary Medicine, Critical Care Medicine, and Sleep Medicine. His clinical focus spans pulmonary and critical care, sleep medicine, allergy and immunology, and weight management. He has practiced medicine for over 30 years and maintains staff privileges at Largo Medical Center, Morton Plant Hospital, Mease Countryside Hospital, and SunCoast Hospital. A nationally recognized speaker, he has appeared on television and radio and authored more than a dozen medical articles. ' Together with his wife Rose, he co-founded Footprints Ministry, a non-profit that distributes new shoes to homeless and needy children. He and Rose have been married for over 35 years and have two children, Ashley and Ryan.
Education & Training
Medical School
New York Medical College (graduated 1985)
Residency
Internal Medicine, Cleveland Clinic Foundation
Fellowship
Pulmonary and Critical Care, and Allergy and Immunology, Johns Hopkins University
Additional Training
Business of Medicine degree, Johns Hopkins University; Juris Doctor, Stetson University School of Law
Certifications
Conditions Treated
Who is Dr. Averill right for?
Dr. Averill suits patients managing complex respiratory conditions such as COPD, asthma, pulmonary fibrosis, or emphysema. Adults and children ages five and older with sleep disorders, including sleep apnea, insomnia, narcolepsy, or restless leg syndrome, benefit from his specialized diagnostic capabilities. Patients dealing with allergies, allergic rhinitis, food allergies, or atopic dermatitis find his allergy and immunology training directly relevant. Those seeking medically supervised weight loss also fit well within his practice, given his personal and clinical experience in that area.
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Frequently Asked Questions
Dr. Averill treats a wide range of respiratory, sleep, and allergy conditions. These include COPD, asthma, pulmonary fibrosis, emphysema, chronic bronchitis, sleep apnea, insomnia, narcolepsy, restless leg syndrome, bruxism, allergic rhinitis, food allergies, atopic dermatitis, obesity, and hypertension.
Yes. Dr. Averill holds board certifications in Internal Medicine, Pulmonary Medicine, Critical Care Medicine, and Sleep Medicine. He completed fellowship training at Johns Hopkins University in both Pulmonary and Critical Care and Allergy and Immunology.
Dr. Averill graduated from New York Medical College in 1985. He completed his Internal Medicine residency at the Cleveland Clinic Foundation and pursued fellowship training at Johns Hopkins University. Johns Hopkins also awarded him a degree in the Business of Medicine.
Yes. Dr. Averill holds a Juris Doctor from Stetson University School of Law and is a member of the Florida Bar. He offers expert witness and medical-legal consultation services for attorneys.
Dr. Averill performs a full range of pulmonary and sleep diagnostics. These include pulmonary function testing, spirometry, lung volume measurement, diffusion capacity testing, methacholine challenge testing, exercise testing, oximetry, bronchoscopy, polysomnography, CPAP titration, and multiple sleep latency testing. He also performs allergy testing and patch testing.
Yes. Dr. Averill and Rose Averill developed a comprehensive wellness and weight loss program. The program draws on both their clinical expertise and personal experience, having together lost more than 90 pounds. Rose Averill, a nutritionist and certified personal trainer, serves as CEO and supports the wellness program.
Dr. Averill has practiced in Pinellas County since 1991. He founded St. Francis Sleep, Allergy & Lung Institute in 2007 and has served the Clearwater community for over three decades.
Yes. The practice welcomes patients ages five and older. Dr. Averill evaluates and treats children for respiratory, sleep, and allergy conditions within that age range.
Yes. Dr. Averill actively participates in clinical trials at St. Francis. The institute runs ongoing research studies that keep the practice current with emerging treatments. He has also authored more than a dozen medical articles and speaks nationally on healthcare topics.
Doctor profile last updated March 23, 2026