Our Staff

At Sand Lake Dermatology Center, our providers work together to utilize a team approach, with physicians, physician assistants, aestheticians, and nurses collaborating to provide the best care for each patient. We look forward to getting to know you.


Allison Arthur, MD

Board Certified in Dermatology by the American Board of Dermatology

Board Certified in Dermatopathology by the American Board of Dermatology and American Board of Pathology

Dr. Allison Arthur is a Mayo Clinic-trained dermatologist and dermatopathologist who cares for patients of all ages. Her goal is to deliver high quality, compassionate patient care.

Born and raised in Toledo, Ohio, Dr. Arthur moved to Atlanta, Georgia to complete her undergraduate studies at Emory University, where she was selected for membership in the Phi Beta Kappa Honor Society. While attending medical school at the University of Florida, she was inducted into the Alpha Omega Alpha National Honor Medical Society and Gold Humanism Honor Society in recognition of her superb scholastic performance, personal character, and service to the university and the community. In 2006, she graduated from the University of Florida College of Medicine at the top of her class with Honors in Academic Excellence. She completed her internship in Internal Medicine at Shands Hospital at the University of Florida, then moved to Rochester, Minnesota for Dermatology residency at Mayo Clinic.

After residency, Dr. Arthur joined the faculty of the Department of Dermatology at Mayo Clinic and served as an instructor at Mayo Medical School. She then continued her education with a fellowship in dermatopathology, studying skin diseases at the microscopic level. During her time at Mayo Clinic, Dr. Arthur cared for patients from all over the world and was mentored by some of the top dermatologists in the field.

Dr. Arthur is involved with the American Academy of Dermatology (AAD), currently serving as the deputy chair of the Council on Member Services. She is the former chair of the Young Physicians Committee and has also served on the Leadership Forum Work Group, Residents and Fellows Committee, and the Corporate Relations Committee.

Dr. Arthur enjoys providing all aspects of dermatologic care for her patients, including medical, surgical and cosmetic treatments. Follow her on Instagram @drallisonarthur.


Erica Mailler, MD

Board Certified, American Board of Dermatology

Dr. Erica Mailler is a board-certified Dermatologist and fellowship-trained Mohs micrographic surgeon, specializing in the treatment of skin cancer. Dr. Mailler practices by the motto "Caring for you and the skin you're in." She believes that the skin is a window into the health of the mind and body and strives to care for you and your skin by getting to know you as a whole person.

Dr. Mailler's undergraduate degree in Bioethics is from the University of Virginia. She earned her medical degree at Wright State University School of Medicine in Dayton, where she graduated Alpha Omega Alpha (national medical honor society). Dr. Mailler then completed a dermatology residency and a prestigious Mohs fellowship at the University of Cincinnati.

Dr. Mailler has been published in many peer-reviewed journals including Dermatologic Surgery, Journal of the American Academy of Dermatology, and Archives of Dermatology.

Dr. Mailler is a fellow of the American Academy of Dermatology and American College of Mohs Micrographic Surgery. She is a diplomate of the American Board of Dermatology and a member of the Women's Dermatologic Society and the American Society for Dermatologic Surgery.


Gina Mangin, MPAS, PA-C

Gina has been a practicing Physician Assistant for 16 years. She earned her Bachelor's degree in Biology from the Univeristy of North Carolina at Wilmington and received her Physician Assistant training at East Carolina University. She is board certified by the National Commission on Certification of Physician Assistants. Gina went on to earn her Masters of Physician Assistant studies at the University of Nebraska. Gina specializes in the treatment of all skin, hair and nail disorders. She also performs cosmetic procedures including Botox, intense pulsed light photorejuvenation and injectable fillers. Gina is an active member of the Society of Dermatology Physician Assistants and is an active board member and past President of the Florida Society of Dermatology Physician Assistants. She has earned the high honor of "Diplomate" status within the National Society of Dermatology Physician Assistants.


Jessie Holland, MPAS, PA-C

Jessie Holland is committed to providing top-notch care to keep your skin healthy and happy. After receiving her Bachelor's degree in exercise phsyiology at Florida State University, Jessie went on to earn a Master's degree in Physician Assistant Studies with honors at the University of Florida. Jessie is board certified by the National Commission on Certification of Physician Assistants and formally trained in pediatric and adult dermatology. She has specialized in dermatology for the past 10 years. Jessie enjoys treating a variety of dermatological conditions in adults and children and promotes a proactive skin care approach through education, prevention, and early treatment. She is experienced in performing surgical procedures such as skin cancer excisions and cosmetic procedures including sclerotherapy and injecting Botox and dermal fillers. Jessie serves as the President of the Florida Society of Dermatology Physician Assistants and has also been designated Vice President and Director-at-large in years past. She is passionate about keeping informed with the evolving field of dermatology and has participated in research and clinical trials.                           


Lauren McConeghy, MPAS, PA-C

Lauren McConeghy, PA-C has been practicing dermatology in the Central Florida area since 2011. She is skilled in the evaluation and treatment of hair, skin and nail diseases, as well as performing skin cancer screenings. She is proficient in a variety of procedures, including; cryotherapy, skin biopsies, cyst and skin cancer excisions and other surgical procedures. Lauren also performs various cosmetic treatments such as Botox, Dysport, Kybella and fillers. As a Florida native, she is passionate about educating patients on the importance of sun protection and the dangers of sun exposure. She is a past contributor of expert columns in the Lake Mary Healthy Living Magazine. After receiving her Bachelor’s degree in exercise and sport science from the University of Florida, she went on to earn her Master’s in Medical Science degree from Nova Southeastern University. Lauren is board certified by the National Commission of Certification of Physician Assistants and holds active memberships with the Florida Academy of Physician Assistants, Society of Dermatology Physician Assistants and the Florida Society of Physician Assistants.


Aaliya Ali, PA-C

Aaliya Ali is a Physician Assistant passionate about providing exceptional, compassionate care for her patients' dermatological needs and overall health and well being. Aaliya received a Bachelor's of Science in Biology at the Univeristy of Miami, a Master's of Science in Microbiology and Immunology at the University of Central Florida, and a Master's in Medical Science from Nova Southeastern University. Along with medical dermatology, she loves aiding in surgical procedures that will help bring relief and healing to patients. She also loves educating patients about skin cancers and preventative measures. She is an active member of the Florida Academy of Physician Assistants, the Florida Society of Dermatology Physician Assistants and the Society of Dermatology Physician Assistants. 


Dawn Cervantes, ARNP, NP-C

Dawn is a Central Florida native and has been a member of the Sand Lake Dermatology Family for 10 years. She earned her Nursing Degree in 2001 at Daytona State College later returning to school to obtain her Bachelor’s Degree in Nursing from Walden University and then her Master’s Degree as a Family Nurse Practitioner from Purdue University Global. She is board certified by the American Association of Nurse Practitioners (AANP). She has been a member of the Dermatology Nurses’ Association (DNA) for 10 years and plans to continue her education by becoming certified in dermatology through the DNA. Dawn specializes in skin cancer screening, warts, acne, molluscum as well as performing cryotherapy, skin biopsies, and photodynamic therapy (PDT).


Nancy Foster, Medical Aesthetician

Nancy Foster is a certified and licensed aesthetician with over 20 years of experience in the aesthetic field. She believes in results-oriented treatments and pays personal attention to each patient's primary goals for their skin and esthetic needs. Nancy's extensive training and experience includes chemical peels, microdermabrasion, photo rejuvenation, skin tightening, oxygen facials as well as her vast knowledge of skin care products for various skin types. She believes that skin improvement is absolutely attainable at any age or stage of life. Nancy is available for complimentary consultations to offer individualized recommendations for services and products to meet your skin care needs. As Nancy says, "Treating skin is an art that I tend to with diligent care. It is an honor for me to be entrusted with a person's face."


Raine Orza, Medical Aesthetician and Laser Technician

Raine Orza is a certified and licensed medical aesthetician and laser technician with over 15 years of experience in the aesthetic field. She has advanced training in skin care, chemical peels, laser hair reduction, laser skin rejuvenation and microneedling. Raine received her aesthetic license from Florida College of Natural Health and received her laser technician certification from Lase-It Institute. Her knowledge of aesthetics and experience with laser hair reduction for both small and large body areas make her a wonderful addition to Sand Lake Dermatology Center. Raine is available for complimentary consultations to offer individualized recommendations for services and products to meet your aesthetic needs. Raine says, "I love nothing better than helping guide a patient through the entire process- from the consultation to the treatment, then the follow-up and ongoing monitoring of the patient's skin care needs. I really enjoy being a part of a team that has such a positive impact on people's lives."


Camille Acevedo, Medical Aesthetician 

Camille Acevedo was born in Arecibo, Puerto Rico and has lived in Central Florida for over 20 years. She graduated from Florida College of Natural Health in 2012 and obtained her certification as a medical aesthetician. Camille specializes in advanced aesthetic treatments, targeting acne, hyperpigmentation, and aging skin. Her most frequently performed procedures include facials, peels, microneedling, and dermaplaning. Camille enjoys utilizing her knowledge of skin health and expertise in aesthetics to create customized treatment plans that cater to each patient’s goals.


Patti Fitzgerald-Belisle, CMM, Practice Administrator

Patti Fitzgerald-Belisle wants you to choose Sand Lake Dermatology Center for all of your dermatologic needs. She ensures this by offering the ultimate patient experience—a combination of compassion and professionalism that she has developed through 26 years of experience in dermatology practice management, patient relations and customer care as a Certified Medical Manager. 

Christopher Crotty, M.D.

Founder, Sand Lake Dermatology Center.
Dr. Crotty founded Sand Lake Dermatology Center in 1988. After 34 years of serving the community, he has retired.  

Contact Us

Office Hours


7:30 am-5:30 pm


7:30 am-6:30 pm


7:30 am-5:30 pm


7:30 am-6:30 pm


7:30 am-4:00 pm


8:00 am-12:00 pm