Our Doctors


Darrell N. Fiske, MD

Dr. Darrell FiskeDr. Fiske is board certified in rheumatology and internal medicine and is a fellow in the American College of Physicians and the American College of Rheumatology.  He is a member of the American Society of Bone and Mineral Research. He is an active clinical trialist with over 200 phase I  through phase IV clinical trials in many different therapeutic areas.   He earned his medical degree and postdoctoral training at the University of Florida and also carries a Master of Divinity degree from Emory University and a Bachelor of Science in Chemical Engineering from the University of South Florida. He has published research in peer-reviewed journals.  He has a special interest in osteoporosis and metabolic bone diseases. Dr. Fiske is married with two children.  He enjoys sports, distance running, hiking, gardening and reading. He has complete a few marathons including the Boston Marathon.
View Dr. Fiske’s CV (PDF)


John M. Houri, MD

Dr. John HouriDr. Houri is board certified in rheumatology and internal medicine and is a fellow in the American College of Rheumatology.  He is a former Assistant Professor of Medicine at the University of Pittsburgh Medical Center and Chief of Rheumatology at the Pittsburgh VA Medical Center.  He earned his medical degree at Creighton University School of Medicine where he also completed the program in pharmacy earning a BS Pharmacy.  He has published his research in peer-reviewed medical journals including research on lupus. Dr. Houri has also participated in over 200 clinical trials studying new medications and treatments. He is married with two children.  He enjoys long distance running and has completed a number of marathons including the Boston Marathon, the New York Marathon and the Paris Marathon.
View Dr. Houri’s CV (PDF)


Devin M. Weidman, MSN, ARNP, ANP-C

Devin M. Weidman, Nurse PractitionerDevin Weidman has been with Rheumatology Associates since 2002.  She is a board certified nurse practitioner with a graduate degree and advanced training in diagnosing and treating rheumatology illnesses.  Devin earned her master’s degree in nursing from the University of Florida. She is a member of the Association of Rheumatology Health Professionals (ARHP).  She is trained in physical and arthritis exams and in trigger point and joint injections.  In addition, she is an excellent listener and will take as much time as necessary to understand your problem.  Devin is available for return appointments, urgent appointments and same-day appointments.  She is married with three children.


Lindsey R. Porth Healy, MSN, FNP-BC

Lindsey Porth ARNPLindsey Porth Healy joined Rheumatology Associates July, 2015.  She is a board certified family nurse practitioner and member of the Florida Society of Rheumatology. Lindsey specialized in infectious disease when she first started her career as a nurse practitioner, then moved on to primary care medicine. Lindsey discovered her passion for rheumatology in early 2011 and it has become her area of expertise. Lindsey earned her Associates degree in nursing from Indian River State College and worked as a Registered Nurse in the Intensive Care Unit of St Lucie Medical Center while completing her Nurse Practitioner degree. Lindsey earned both her Bachelor’s and Master’s degrees in nursing at Florida Atlantic University. Lindsey’s patients have described her as both thorough and compassionate. She is also a very good listener and believes that no problem is too small. Lindsey has a very close family and spends a lot of time with her nephews and niece.  In her spare time, she loves to read and loves everything to do with the ocean.