Adult & Pediatric Dermatology
Call now
Call now
Website
Call
Expertise in all areas of skin disease and skin pathology and specializes in diagnosis and treatment of cancerous and precancerous lesions of the skin including basal cell carcinoma, squamous cell carcinoma, malignant melanoma, atypical moles, actinic and hypertrophic actinic keratoses, cutaneous T cell lymphoma (mycosis fungoides), and myriad other skin lesions and conditions.

He has made dozens of professional presentations and has publications in Dermatology and Dermatopathology. He has received numerous awards and accolades as a top Dermatologist in New Jersey, and regularly receives outstanding reviews from patients. Dr. Geller has always excelled in his field. Dr. Geller heads a team as dedicated to the practice's patients and medical excellence as he is.
Services
Dr. Geller is a Board-Certified Dermatologist in NJ and a Board-Certified Dermatopathologist. He is a Fellow of The American Academy of Dermatology, The American Society of Dermatopathology, and the American Society of Dermatologic Surgery. Certification is only given to those who display that they have achieved the required medical competence plus the high level of care and dedication needed to lead in this specialty.
Board Certification Dermatopathology: The American Board of Dermatology, The American Board of Pathology. Dermatology Mock Board Examination: Scored between 93% and 99% in nationwide examinations in Dermatology and Dermatopathology in consecutive years as a Dermatology Resident. Dr. Geller is listed in Consumers' Research Council of America's Guide of America's Top Dermatologists.
We are thrilled to welcome Cindy Guan MD, PhD, PA-C to the Dermatology Specialists. Cindy earned her medical degree from China Medical University, a preeminent medical school in China. She had an 8-year tenure as an OB/GYN surgeon in Beijing and spent 5 years in Japan earning her PhD in melanoma research.
Located at 310 State Route 24 East in Chester, New Jersey, Dr. Geller and his team of medical professionals have provided personalized and compassionate dermatologic care to northwest New Jersey since 1992. The team of receptionists, nurses, medical assistants, and physician assistants is warm, friendly, professional, and highly trained, and is dedicated to making you feel at home the moment you enter the office.
Located at 176 Mountain Avenue, above Fulton Bank in Skylands Plaza of Hackettstown, it is the second state-of-the-art office of the Board-Certified Dermatologist and Dermatopathologist, who has been serving the greater Hackettstown community from the practice's Chester location for two decades.

Dr. Geller and his team of receptionists, nurses, medical assistants, and physician assistants now offer their full range of services for both adults and children in both locations, from diagnosis to treatment of virtually all dermatologic conditions of the skin, hair, and nails.
Reviews (9)
Melissa D'Agostino
Melissa D'Agostino
Jan 30, 2022
Report
The staff was very friendly and helpful. The waiting time was quick and the dermatologist was very good!
Peace Biyibioku
Peace Biyibioku
Jan 20, 2022
Report
Everyone was so nice and I had a good experience with the physician assistant, she explained everything so clearly and made me less nervous. Thank you Dermatology Specialists
Mike Murphy
Mike Murphy
Dec 04, 2021
Report
They were very profesional , friendly staff , took care of problem asp i would recomend them to others
Gwendolyn Phillips
Gwendolyn Phillips
Nov 23, 2021
Report
I was there for a follow up on a dry patch to my elbow. I was treated to a chemical peel which made my skin so soft.
Paul Cedro
Paul Cedro
Sep 29, 2021
Report
Overall it was a decent experience. Wait times are a little long but they are very busy so I kinda understand!
William McDonagh
William McDonagh
Sep 25, 2021
Report
Courteous staff
On time appointment
Nurse very professional
Doctor explained everything being done and evaluated
Encouraged patient questions and input
Answered question thoroughly and understandably
Thank you
Alfred Stout
Alfred Stout
Sep 19, 2021
Report
Experience was very well except had to wait 35 minutes after my assigned appointment time otherwise extremely well
Mikey G.
Mikey G.
Jul 29, 2021
Report
Doctor Geller was amazing …his staff was so courteous and attentive. He really gave me a thorough check all over and found stuff on me that I didn’t know I had …I would definitely recommend to anyone who needed a courteous, and thorough physician who cared enough to really examine and resolve all you’re imperfections …100%..a great experience.
Vincent Cavaliere
Vincent Cavaliere
Jul 21, 2021
Report
I have been seeing Dr. Geller for close to 20 years. He has identified cancerous growths on my skin that my primary doctor missed or did not recognize. Great doctor!