Meet Our Providers
OnSpot Dermatology's team of 19+ dermatology professionals, fellowship-trained Mohs surgeons, and specialist providers brings world-class skin care to patients across Central and South Florida.
6+
Dermatology Professionals
12+
Advanced Practice Providers
6
FL Offices
250,000+
Patients Served
Dermatology professionals and fellowship-trained surgeons
Physicians
Alexander Herbst
MD
Chief Medical Officer
Florida State University College of Medicine graduate. Completed residency and served as Chief Resident at University of Miami. Actively teaches medical students and resident dermatology professionals.
Allan C. Harrington
MD
Medical Director
Harvard College and Dartmouth Medical School graduate. Former director of Skin Cancer Surgery at Walter Reed Army Medical Center and Assistant Professor at Johns Hopkins.
Jay Herbst
MD, FAAD
Mohs Surgeon
University of Miami medical school graduate with residencies in both Internal Medicine and Dermatology. Published over 40 peer-reviewed medical journal articles.
Sergey Arutyunyan
DO, MS
Mohs Surgeon
Nova Southeastern University graduate. Served as Chief Resident during dermatology residency, then completed fellowships in both Mohs Surgery and Cosmetic Surgery.
Peter Mattei
MD
Mohs Surgeon
Johns Hopkins Hospital residency graduate. Fellowship-trained in Micrographic Surgery and Dermatologic Oncology. U.S. Air Force veteran.
Patrick Zito
DO, Pharm.D.
Mohs Surgeon
Quadruple and triple fellowship-trained. University of Virginia and summa cum laude dual-doctorate graduate. Voluntary Associate Professor at University of Miami.
APRNs and certified PAs specializing in medical, surgical & cosmetic dermatology
Advanced Practice Providers
Theresa Holt
APRN
Nurse Practitioner
Nurse Practitioner specializing in dermatology care across Central and South Florida.
Kim Delaney
APRN
Nurse Practitioner
Air Force and pediatric ICU nursing veteran. Master's degree from Georgetown University. Post-master's dermatology certification from Florida Atlantic University.
Kevin Hendrickson
APRN
Nurse Practitioner
Master of Science in Nursing from University of Southern Indiana (2015). Over a decade of clinical experience in dermatology.
Andrew White
PA-C
Physician Assistant
Physician Assistant specializing in medical and surgical dermatology across Florida.
Mei Mei Chan
PA-C
Physician Assistant
King's College graduate. Practiced in NYC and Bonita Springs. Over 10 years specializing in geriatric dermatology across Southwest Florida.
Vanessa Weir
PA-C
Physician Assistant
Lincoln Memorial University graduate. Trained at Cleveland Clinic. Over 20 years of experience in Southwest Florida.
Anna Heck
PA-C, MPAS, CAQ-Derm
Physician Assistant
UF College of Medicine and Smith College graduate. Certificate of Added Qualification in Dermatology (CAQ-Derm). Practicing since 2012.
Mari "Trisha" Freeman
PA-C
Physician Assistant
University of California Santa Barbara and Western University of Health Sciences graduate. Specializing in dermatology since 2004.
Jessica Campestrini
PA-C
Physician Assistant
University of Florida and University of Miami graduate. Fluent in English and Portuguese. Master's in Skin Biology and Dermatological Sciences.
Eric Eisenberg
PA-C
Physician Assistant
South University Magna Cum Laude graduate. Diplomate Fellow of the Society of Dermatology Physician Assistants. Former volunteer firefighter and EMT.
Hanna Patel-Mills
PA-C
Physician Assistant
Wingate University graduate. Two years of general dermatology in North Carolina before specializing in cosmetic dermatology with fillers and neuromodulator expertise.
Alfredo Sy
PA-C
Physician Assistant
Physician Assistant specializing in medical and surgical dermatology, based primarily at OnSpot's Lady Lake office.
Ready to See a Dermatology Professional?
Book an appointment with one of our providers — most patients are seen within days, not months.