Decorative symmetrical design resembling a snowflake or floral pattern, Annexus Dermatology logo.
Three healthcare professionals, two women and one man, posing together in a medical office. The women are standing on either side of the seated man, all smiling at the camera.

OUR PROVIDERS

ENTRUST THE LIFE OF YOUR SKIN TO THE EXPERTS

Meet Our Friendly Team of Providers!

Dr. Sandhu has created a dermatology practice that services both the medical, surgical, and cosmetic dermatology needs of his patients in a comfortable and stress-free atmosphere so that you can feel relaxed and welcome during your visit.

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Meet Dr. Sandhu

Board-Certified Dermatologist & Mohs Surgeon

Neil Sandhu, MD, FAAD is the founder and Medical Director at Annexus Dermatology & Aesthetics. A board-certified dermatologist and Mohs surgeon practicing in Florida since 2012, Dr. Sandhu has extensive experience in all aspects of cosmetic, surgical, and medical dermatology for all skin types.

Dr. Sandhu began his medical career at the University of Wisconsin where he earned his Bachelor’s degree, graduating Summa Cum Laude. He then went to the University of Wisconsin School of Medicine and Public Health, graduating in the top 10% of his class. He was accepted into the dermatology program at the UMDNJ-New Jersey Medical School, where he was Chief Resident. He earned his Board Certification in Dermatology in 2012. Since graduation, he has been a Mohs Micrographic Surgeon in the Florida panhandle, and most recently in Central Florida. His expertise is in the detection and treatment of skin cancer. Dr. Sandhu has extensive experience in cosmetic procedures, including Botox/Dysport, filler injections, chemical peels, and photo rejuvenation. This allows him to help his patients look and feel their best.

Dr. Sandhu has authored multiple scientific articles. He is a member of the American Academy of Dermatology, American Society of Dermatologic Surgery, and a Fellow in the American Society for Mohs Surgery. He is an associate professor of University of Central Florida Medical School and Nova Southeastern University School of Medicine. He is also a frequent medical guest on local TV shows. Dr Sandhu’s motto is “I treat all my patients like I would my own family.”

As a native from Toronto, Canada, Dr. Sandhu is an avid hockey and sports fan. He also enjoys spending his free time traveling, skiing, and visiting his family and friends in his hometown.

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Meet Junie Tilus, DNP, FNP-C

Dermatology Nurse Practitioner

Junie has been practicing nursing for over 18 years. She is a Board-Certified Family Nurse Practitioner with special interests in all aspects of Dermatology. She completed both, her Doctor of Nursing Practice degree and Master’s of Science in Nursing, at South University in Savannah, Georgia. Her bachelor’s of science in nursing was completed at Herzing University in Orlando, Florida. She has an extensive nursing background and knowledge of all skin, hair and nail conditions and supports the care of all her patients through compassionate, quality care. She believes in developing strong relationships, in order to provide personalized care, tailored to meet each patient’s specific needs. She is board certified under the American Academy of Nurse Practitioners and has now joined the team at Annexus Dermatology & Aesthetics.

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Meet Crystal Burks, FNP-C

Dermatology Nurse Practitioner

Crystal is a seasoned nursing professional with over 17 years of nursing experience in various settings, including emergency care, critical care, surgery, and specializing in dermatology. Crystal is trained in general and surgical dermatology, and has extensive experience in skin cancer detection, prevention, treatment, and the management of other conditions of the hair, skin, and nails. Board-certified by the American Academy of Nurse Practitioners as a Family Nurse Practitioner, she holds a Master of Science in Nursing from Chamberlain University in Chicago, Illinois, and a Bachelor of Science in Nursing from Union Adventist University in Lincoln, Nebraska. Crystal treats patients of all ages from newborn babies to adults. Crystal is a native of Toronto, Ontario, Canada. In her free time, she treasures spending quality time with her husband and two young children.

A man with short dark hair, beard, and fair skin wearing black scrubs with a logo that reads 'A NEXUS Dermatology & Aesthetics' on the chest, standing against a gray background.


Meet Matthew Schroeder, PA-C

Dermatology Physician Associate

Mr. Matthew Schroeder is a qualified and caring physician assistant specializing in dermatology. He currently offers his services at Annexus Dermatology & Aesthetics and welcomes patients from all backgrounds in Port Orange, Orange City, and Deland, FL. Mr. Schroeder’s professional experience and training allow him to evaluate a wide range of skin concerns. Mr. Schroeder is dedicated to improving his patients’ skin health and confidence. His skills, attention to detail, and patient-oriented approach enable him to help patients receive the best possible treatment.

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Meet Dr. Mark Mathieson, MD

Board-Certified Plastic Surgeon

We are excited to introduce Dr. Mark Mathieson, Board-Certified Plastic Surgeon, to our dermatology team! Dr. Mathieson is a highly skilled and experienced plastic surgeon with over 30 years of medical expertise. Board-certified by the American Board of Plastic Surgery, he has earned a reputation for his dedication to delivering exceptional results and compassionate care. Throughout his career, Dr. Mathieson has specialized in a wide range of plastic surgery procedures, including reconstructive and cosmetic surgeries, while also offering advanced dermatologic treatments. His extensive experience allows him to tailor his approach to each patient’s unique needs, ensuring the highest level of care, safety, and satisfaction. Whether performing intricate surgeries or providing expert dermatologic care, Dr. Mathieson remains committed to enhancing the lives and confidence of his patients.

Professional Affiliations

Logo of the University of Central Florida featuring a stylized lion's head in yellow with a star, next to the text 'University of Central Florida'
Logo of the American Academy of Dermatology Association with stylized blue and black text.
Seal of Nova Southeastern University with blue text and graphics, featuring a sunrise and the initials NSU.
Logo of the Society of Dermatology Physician Assistants, featuring a blue circle with red border and a white emblem of a snake wrapped around a staff.
Diagram showing the process of risk assessment and management.
The logo of the American Academy of Physician Assistants (AAPA) in blue letters.