Our Team

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Dr. Allan Harrington

Dr. Allan Harrington, M.D.

Medical Director & Mohs Surgeon

Allan C. Harrington, M.D. is a graduate of Harvard College and Dartmouth Medical School. Board-certified in dermatology, Dr. Harrington completed his residency at Fitzsimons Army Medical Center. In addition, he completed a two year Mohs Micrographic Surgery fellowship at Tufts Medical Center in Boston, Massachusetts. He is a member of the American Academy of Dermatology and the American College of Mohs Surgery. Dr. Harrington is the former director of Skin Cancer Surgery at Walter Reed Army Medical Center and Assistant Professor at Johns Hopkins Medical Center. He is the author of numerous articles and textbook chapters on skin cancer and reconstruction.

Dr. Charles Camisa

Dr. Charles Camisa, M.D.

Medical Director & Board-Certified Dermatologist

Dr. Charles Camisa is a graduate of Cornell University and Mount Sinai School of Medicine. He was an associate professor of Medicine at Ohio State University. From 1987 to 2006, Dr Camisa was a staff Dermatologists at the Cleveland Clinic Foundation. He was the Director of the Dermatology Residency Program from 1989 to 2006. From 1990 to 2006, he was the Vice Chairman of the Department of Dermatology at the Cleveland Clinic. From 2004 to 2019, Dr. Camisa was recognized as one of "America's Top Doctors" by CastleConnelly. In 2005, he was voted Dermatology Practitioner of the year by the Florida Society of Dermatology and Dermatologic Surgery. Throughout his career, Dr. Camisa has contributed to the field of dermatology immensely. He is the author of over 140 peer-reviewed articles and textbook chapters on skin and oral diseases as well as the founder of the "Camisa Disease" which is a rare genetic variant of Vohwinkle's.

Dr. Patricia Stewart

Dr. Patricia Stewart, DO

Medical Director & Board-Certified Dermatologist

Dr. Patricia Stewart is a board-certified dermatologist with 22 years of experience. She received her medical degree from the University of New England College of Osteopathic Medicine. She completed a Dermatology residency at the Dermatology Center in Pennsylvania and her final year at Hahnemann Medical College (now Drexel University College of Medicine). Prior to joining OnSpot, Dr. Stewart spent two years in Nelson, New Zealand at Bridge Street Dermatology. New Zealand is known as having one of the highest incidences of Melanoma in the world. OnSpot is lucky to have Dr. Stewart take her experience in treating skin cancer in New Zealand to Southwest Florida. She has received a number of medical awards including Physician of the Year from the American Association of Physician Specialists and the Physician of the Year from the National Republican Congressional Advisory Board. Dr. Stewart is a member of the American Medical Women's Association and past president of the Santa Barbara chapter, American Osteopathic Association and Christian Medical and Dental Society.

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Dr. Andrew Styperek, M.D.

Mohs Surgeon

Dr. Andrew Styperek is a fellowship trained, board-certified dermatologist. He graduated from Harvard University with a bachelors degree in business. Dr Styperek then went on to Emory University School of Medicine in Atlanta, GA. His residency trained was completed at University of Miami School of Medicine, where he was also chief resident for a year. After his residency he underwent advanced training at Houston Methodist Hospital under the instruction of Dr. Leonard Goldberg. It was there where he completed an extensive fellowship program including skin cancer diagnosis and treatment, cosmetic and anti-aging treatments and venous disease management. He is now working for OnSpot as a Mohs surgeon.

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Farah Edds, PA-C

Physician Assistant

Farah Edds is a talented and skilled physician assistant with years of experience in general, surgical and cosmetic dermatology. She received her Bachelor of Science in Biology with a minor in Chemistry from Eastern Michigan University. Farah went on to get her masters in Physician Assistant Studies at Northern Arizona University. She is fellowship trained through the Society of Dermatology Physician Assistants. Farah is a new resident to Florida after previously living in Medina, Ohio where she worked as a Physician Assistant at Trillium Creek Dermatology. She is a member of the Society of Dermatology Physician Assistants and the American Academy of Physician Assistants.

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Justin Letourneau, PA-C

Physician Assistant

Justin Letourneau is an accomplished and experienced Physician Assistant trained through the DOD Interservice Physician Assistant Program. He received his Bachelor of Arts in Psychology from the University of South Florida. He then went on to receive his Masters in Physician Assistant Studies at the University of Nebraska Medical Center in Fort Sam Houston, Texas. Justin is a retired US Army Major with 23 years served in medical operations management. He has served in both Germany and Afghanistan. He was the senior ranking provider in a US Army troop primary care clinic with extensive experience in general medicine, dermatology and pain management. Post-retirement, Justin went on to become a Physician Assistant at OnSite Skin Solutions, a mobile dermatology practice that served assisted living facilities, schools and local governments in Manatee County. He is a member of the American Association of Physician Assistants, the Florida Association of Physician Assistants and Society of European Physician Assistants. He currently resides in Lakewood Ranch, Florida.

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Tamara Porter, DNP, APRN

Nurse Practitioner

Tamara Porter is a skilled and talented board-certified nurse practitioner backed by years of advanced clinical practice. Tamara received her Bachelor of Interdisciplinary Studies with an emphasis in psychology from Midway University in Midway, Kentucky. She went on to receive her Masters of Science in Nursing from Frontier Nursing University with a 4.0 GPA. Tamara then graduated with a Doctor of Nursing practice from Frontier Nursing University with a 4.0 GPA. She volunteers as a family nurse practitioner at the Virginia B. Andes Volunteer community clinic in Port Charlotte, FL. She is a member of the American Association of Nurse Practitioners, the National Academy of Dermatology Nurse Practitioners and Florida Association of Nurse Practitioners.

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Molly Warnock, PA-C

Physician Assistant

Molly Warnock, PA-C is a graduate of the University of Maryland, College Park and received her Master of Medical Science Degree from North Greenville University, Physician Assistant Medicine program. Prior to completing the Physician Assistant program, Molly worked as a surgical assistant in Mohs Surgery. Under the direction of Dr. Allan Harrington, she assisted in the surgical removal and repair of over 7,000 challenging skin cancers and rare tumors. As an experienced dermatologic surgical assistant, Molly specializes in the surgical removal and management of both malignant and benign cutaneous lesions. Her passion for dermatology has been well highlighted throughout her training. Professional memberships include the American Academy of Physician Assistants (AAPA) and the Society of Dermatology Physician Assistants (SDPA).

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Delicia Garner, PA-C

Physician Assistant

Delicia Garner is a skilled Physician Assistant with 10+ years of clinical experience in dermatology. She has proficient procedural and clinical skills and has been awarded and recognized as a top provider in Southwest Florida. Delicia has her Bachelor of Science in Psychology from Eastern Kentucky University. She then went on to receive her Master of Science to be a Certified Physician Assistant from the University of Kentucky. Delicia previously worked at Cambio Dermatology in Cape Coral where she currently resides. She is a member of the American Academy of Physician Assistants, Society of Dermatology for Physician Assistants and the Florida Academy of Physician Assistants.

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Elizabeth Jaffe, PA-C

Physician Assistant

Elizabeth Jaffe, PA-C is a graduate of Brown University with a bachelors degree in Organizational Behavior and Management and received her masters in physician assistant studies from Chatham University in Pittsburgh, PA. She has also received a masters degree in Education from Bankstreet College in New York. Elizabeth joined her first dermatology practice in November of 2012 at Tri-State Dermatology in Smithfield, PA. She then spent two years in Cleveland, Ohio at the Cleveland Clinic where she worked in Plastic and Reconstructive Surgery. She has been recognized by the Cleveland Clinic as Cleveland Clinic’s PA of the Month. For the past three years, Elizabeth has been working at dermatology practices in Long Island. She is now working for OnSpot in southwest Florida as a valued member of the Fort Myers team.

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Hilary Repasky, PA-C

Physician Assistant

Hillary Repasky is a talented physician assistant with years of experience. She received her Bachelor of Science in Biology from the University of Central Florida in Orlando. She then went on to get her Master of Medical Science in Physician Assistant Studies from Nova Southeastern University in Fort Lauderdale. In the past she has worked at Magruder Eye Institute as well as The Eye Institute of West Florida working as a medical assistant. She then worked at Accountable Inpatient Medicine as a physician assistant. She also loves to use her talents to give back to the community in many ways including having traveled to Nicaragua and offering medical training to its residents.

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Ashley Walker

Medical Assistant

Ashley is a medical assistant for the Sarasota team. She graduated from University of Illinois at Urbana-Champaign with a Bachelor’s of Science in Chemistry. She is a licensed EMT and has a variety of different clinical experiences including international medical experience, volunteering, and bedside nursing assistance. Ashley will be continuing her medical career as she enters her first year in the M.D. program at Southern Illinois Unversity School of Medicine in August 2021. She is currently working as a valued member of the Sarasota team.

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Sarah Lekan

Medical Assistant

Sarah is a talented and skilled certified medical assistant. She has been a medical professional specializing in dermatology for over ten years. Sarah is incredibly passionate about patient care and enjoys helping others, which is exactly why she loves working for OnSpot. When she is not at work she is rooting for the Ohio State Buckeyes. She is a valued member of the Fort Myers team, along with her husband Eddie!

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Candace Cahueque

Medical Assistant

Candace is a skilled and talented medical assistant who is a graduate of the University of South Florida Sarasota-Manatee with a degree in Biology. She has worked in many customer service roles, but her previous medical experience includes working for years as a chief medical scribe. Candace has also had the opportunity to provide medical services to underserved communities both in the United States as well as Jamaica.  She is originally from the Tampa Bay Area, but currently resides in Lakewood Ranch, Florida. She is a key member of the Sarasota team where she works as a medical assistant.

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Araceli Rodriguez

Medical Assistant

Araceli is a recent graduate from Duke University where she majored in Biology and minored in Chemistry. Since her graduation from Duke she has worked as a medical scribe and chief scribe for both emergency room and urgent care centers with Scribe America. She has been a volunteer medical translator for La Esperansa Clinic for over five years and worked as an administrative assistant at Freedom Plaza Assisted Living for two years. She is currently working as a medical assistant for the Sarasota team!

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Jackie Jeanes

Medical Assistant

Jackie is your friendly front office patient care coordinator and scheduler. She will get you checked in with approved insurance in a timely manner while making your patient experience both fun and effective. Jackie has over 15 years experience in dermatology as a medical receptionist and patient care coordinator. She currently resides in Bradenton, Florida and is a valued member of the Sarasota team where she works as a Medical Assistant.

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Liz Sandoval

Medical Assistant

Liz Sandoval is a talented medical assistant who graduated from Southern Technical College in Port Charlotte with an Associates of Science in surgical technologist. She previously worked at ADCS in Cape Coral as a surgical technician, and was later promoted to a surgical coordinator. Liz is currently working as a valued surgical technician for the Fort Myers team.

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Eddie Lekan

On-Site Manager

Eddie Lekan is OnSpot's On-Site Manager ("OSOM" - which really sounds like, AWESOME!) for the Fort. Myers team. Eddie has a wide range of previous careers. He is proud to be a former United State Marine, fire-fighter and attorney. However, he is most proud to be a Christian husband and father. Eddie and his wife, Sarah, who works for OnSpot as a medical assistant, moved to Florida from Michigan in 2014. Currently, Eddie is waiting for you to check-in at one of OnSpot's convenient locations. C'mon out and see him!

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Cassandra Hunt

Patient Coordinator & Patient Scheduler

Cassandra Hunt is the voice of OnSpot! She is OnSpot's patient coordinator and patient scheduler and the person patients speak to when they call in to schedule an appointment or have questions about OnSpot's services. Speak to Cassandra today by calling 877-2-ONSPOT. Cassandra is a recent graduate of Northeastern University. She currently resides in Fort Myers, Florida.

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Nikki Sindorf

Director of Practice Operations

Nikki Sindorf is an experienced and passionate healthcare management executive who strives for a memorable, modern, tech-forward patient experience. She has 10+ years in healthcare management. She went to the University of Maryland College Park where she received her Bachelor of Science in Public Health. She is currently set to receive her Masters at the University of Maryland in health care administration and management in 2021. She worked for 3 years at Anne Arundel Dermatology as well as MD Dermatology of Maryland. Most recently, she worked at WellAve as the Chief Operating Officer. WellAve is a mobile dermatology practice servicing the Annapolis area. She currently resides in Kent Island, Maryland.

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Tim Holkenborg

On-Site Operations Manager

Tim is our On-Site Operations Manager for the Sarasota OnSpot team.  He Studied Business Management at the University of South Carolina were he also captained the University Rugby Team.  Tim has an extensive Sales background. Working for both Consumer United in Boston as an insurance agent and as a Licensed Mortgage Professional in St. Augustine, Florida. His unique mix of experience allows him to successfully handle any obstacle placed in his way.  We are excited to see Tim grow with OnSpot in the coming years. He currently resides in Bradenton, Florida as a key member of our Sarasota team.

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Dustin Hunt

General Manager

Dustin Hunt brings years of sales experience to OnSpot's business team. Previously, Dustin worked for Datto, a technology company in downtown Boston where he sold SaaS solutions to enterprise corporations. Previous to Datto, Dustin worked at Fuze, a global cloud communications and collaborative software company in Boston. As a General Manager at OnSpot, Dustin focuses on relationship building and Derma Drive™ scheduling with communities and organizations in Southwest Florida. Dustin received his undergraduate degree from Northeastern University in Boston, Massachusetts and currently resides in Clearwater Beach, Florida.

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Tom Dempsey

General Manager

Tom Dempsey brings several years of sales and partnership management experience to OnSpot's business team. As General Manager, Tom oversees Derma Drive™ scheduling and relationship management for all community and corporate partners. Previously, Tom worked in the technology and media industries cultivating relationships with executives at local businesses and global corporations alike. Most recently, Tom worked for a high growth software company in Boston's exciting tech space, and before that as a key member of the sales and partnerships team at the #1 broadcast media outlet in Boston. Tom received his undergraduate degree from Ithaca College in Ithaca, NY. He currently resides in Fort Myers, FL.

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Chris Cowles

Regional Fleet Manager & Trainer

OnSpot has 4 state of the art mobile medical clinics that need to be properly maintained, transported, cleaned and sanitized each and everyday. OnSpot is lucky to employ Chris Cowles, who oversees the maintenance, transportation and patient and staff safety of each of our fleets. Each and everyday, our patients get the feeling they are receiving quality care in an upscale healthcare setting because of Chris direction and leadership. Alongside, Mark Sunkel, Chris travels to trains each of our drivers on the importance of maintaining our mobile clinics to make sure patient and staff safety is top priority. Prior to OnSpot, Chris worked for Para Transit transporting individuals with disabilities to and from appointments. While at Para Transit, Chris was responsible for transporting as well as cleaning and sanitizing vehicles to stop the spread of COVID-19. He was the Florida State driving champion in 2013, 2016, 2017, 2018 and 2019. He is a honorary sheriff deputy of Lee County and currently resides in Fort Myers, Florida with his wife and kids.

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Mark Sunkel

Regional Fleet Manager

OnSpot has a total of 4 state of the art mobile medical clinics that need to be properly maintained, transported, cleaned and sanitized each and everyday. This ensures patient satisfaction. OnSpot is lucky to employ Mark Sunkel, who oversees the maintenance, transportation and patient and staff safety of each of our fleets. Each and everyday, our patients get the feeling they are receiving quality care in an upscale healthcare setting because of Marks direction and leadership. Alongside Chris Cowles, Mark travels and trains each of our drivers on the importance of maintaining our mobile clinics to make sure patient and staff safety is top priority. Mark has been managing commercial vehicles for over 30 years. Prior to OnSpot, Mark worked for LeeTran in Lee County where he was responsible for transporting handicapped clients with strict adherence to safety regulations. Mark brings his background in customer service as well as managing commercial fleets. Mark currently resides in Bonita Springs, Florida with his wife, Judy.

Don Hunt

President

Don Hunt is President of OnSpot overseeing sales, marketing and operations of the business. Don is not a dermatologist, but enjoys working directly with communities, businesses and universities to bring a great service to their residents, employees and students. Don is committed to changing the way patients interact with their dermatologist and creating a patient experience like no other. After graduating from Trinity College 6 years ago, Don worked at GE and Akamai Technologies in various management positions. Don currently resides in Fort Myers, Florida. He is committed to changing the way patients interact with their dermatologist by bringing the practice to you!

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Don Hunt

Co-Founder & Advisor

Don Hunt has been in the technology space for over 35 years and has held a variety of executive positions. Most recently, Don was CEO of You Technology, who was a pioneer in anonymous data and analytics. In that role, Don worked closely with the MIT Media Labs to develop next generation software models. At Nuance, he was President of Worldwide Field Operations. Nuance is the leader in voice recognition software. While there, he lead the growth of Nuance from $200 million to over $1.2 billion dollars in annual revenues. Prior to Nuance, Don worked at Adobe, where he was EVP of Worldwide Enterprise Operations. Don lives in Gloucester, Massachusetts with his wife Kristen and his four children.

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Steve Chambers

Board Member & Advisor

Steve Chambers serves as an advisor and board member for OnSpot Dermatology. He has over 25+ years of high-tech CEO, sales and marketing experience on both start-ups and large technology company operations. Steve graduated from Wesleyan University with a bachelor of arts in English. He went on to Boston University where he graduated with an MBA in marketing and international business and MS in Communications, MS in Social Psychology from the University of Southern California, MA in Education from Harvard University, and is a doctoral candidate at Harvard in Education leadership. Steve served as President of Nuance Communications, the global leader in Voice Recognition and Artificial Intelligence solutions. In that capacity, Steve lead a $2.1b revenue operation and negotiated deals with Apple, Samsung, Google, Amazon, Mercedes, Ford, Toyota, Bank of American, Federal Express, Verizon as well as other leading global organizations. He then went on to serve as CEO of Jibo, Inc. where he helped build the world's first consumer social robot for the home and having closed approximately $87m in funding from various venture and strategic capital sources.