Dermatology in NJ

Offices for Dermatology in Hackettstown NJ and Dermatology in Chester NJSpecializing in all areas of Dermatology

  • Board-Certified Dermatologist
  • Board-Certified Dermatopathologist
  • Fellow of The American Academy of Dermatology
  • Fellow of The American Society of Dermatopathology
  • Fellow the American Society of Dermatologic Surgery

Education and Training:

  • Dartmouth College. Graduated Magna Cum Laude with High Distinction
  • Dartmouth Medical School
  • Dermatology Resident and Chief Resident: Wayne State University
  • Dermatopathology Fellowship I: New York University
  • Dermatopathology Fellowship II: Mayo Clinic

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. Dr. Geller and The Dermatology Specialists are always ready to go that extra step to setting patients at ease.

Practice Video

Xin (Cindy) Guan MD

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. After moving to the United States, she completed a 2-year Physician Assistant program at the University of Maryland and trained for 2 years in Dermatology under the tutelage of a professor at John Hopkins Medical School. She passed the United States Medical Licensing Examination in 2013 and earned her MD Degree in the United States.

After completing her education, Cindy moved to New Jersey and continued her focus in Dermatology. She is well versed in virtually all areas of Medical and Surgical Dermatology, and she also specializes in Cosmetic Dermatology. Cindy is highly respected by her patients as a warm, caring, compassionate, and highly knowledgeable provider. Her clinical practice ranges from skin cancer diagnosis and treatment to managing a wide range of dermatological disorders including acne vulgaris, psoriasis, dermatitis, rashes, hair loss, pediatric dermatology, warts, and skin infections. She is also an accomplished dermatologic surgeon and performs complex skin cancer excisions, cyst and lipoma removal, abscess incision and drainage, and a plethora of other dermatologic procedures.

Cindy also performs numerous cosmetic procedures, including Botox and Xeomin for the treatment of forehead lines, crow’s feet, and frown lines; fillers for the cheeks and lips (Juvederm, Voluma, Restylane, etc.); Kybella; Microneedling; PRP for skin rejuvenation and alopecia; fractional laser skin resurfacing; BBL (Broadband Light) treatments for vascular lesions, acne, skin texture, brown spots, and hair removal; laser treatments of wrinkles and fine lines; skin tightening; skin wellness and rejuvenation, and far more with terrific patient satisfaction.

Please book your appointment or consultation now with Cindy! You will be delighted by her warmth, kind personality, expertise in virtually all areas of the Dermatology, and her dedication to providing the best possible care for her patients.



Conditions Treated Include

  • Neuromodulators (Botox R, Xeomin R)
  • Soft Tissue Fillers (Restylane R, Juvederm R, Voluma R, Belotero Balance R)
  • Acne Blue Light
  • Acne Scars
  • BBL BroadBand Light
  • Blood Vessel Treatments (broken capillaries, facial redness, rosacea)
  • Brown Spots (sun damage, “liver spots,” melasma, pigmented lesions)
  • Chemical Peels
  • Enlarged pores
  • (“Halo”) Non-ablative and Ablative Skin Fractional Resurfacing
  • Hyperhidrosis
  • Permanent Hair Reduction/Laser Hair Removal (certain skin types)
  • Photo Skin Rejuvenation/Photo Facial
  • Scar Revision
  • SculpSure Non-Invasive Fat Destruction and Body Contouring
  • Skin Firming/Tightening
  • Skin Texture/Tone Improvement
  • Stretch marks
  • Vascular Lesions
  • Wrinkles (Superficial and Deep)
  • Customized Skin Care Evaluations and Recommendations.
  • Obagi Skin Care Product Line

Office Hours

Monday: 8:00 am - 5:15 pm
Tuesday: 8:00 am - 4:45 pm
Wednesday: 8:00 am - 4:45 pm
Thursday: 8:00 am - 4:45 pm
Friday: 8:00 am - 3:30 pm

Chester Office

310 Route 24 East, Ste B1A
PO Box 399 Chester NJ, 07930

Tel: 908 - 879 - 8800

Fax: 908 - 879 - 2955

Hackettstown Office

176 Mountain Avenue, Suite 2A
Hackettstown, NJ 07840

Tel: 908 - 452 - 5917

Fax: 908 - 879 - 2955

Dermatology in NJ

Compassionate total body skin care is our #1 priority treating Dermatology in Warren County NJ and Morris County NJ.


When you are suffering the discomfort of a skin condition or are worried about what it might be, the last thing you need is to be kept waiting for an appointment. Dr. Geller’s team of receptionists will do all they can to book your appointment as soon as possible, and his team of nurses, medical assistants, and physician assistants will work hard to put you at ease and provide timely and compassionate care.


To provide your skin biopsy results as soon as possible, Dr. Geller’s outstanding team of laboratory technicians arrive early each morning to prepare your slides in the state-of-the-art histopathology laboratory for Dr. Geller to read that day. In most cases, the turnaround time from skin biopsy to receiving your results is one to two days.


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Conditions Treated Include

  • TAGS
  • ACNE

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*There will be a $125.00 cancellation free if not made within 24 hours.

Office Update

In these uncertain times we would like to assure our patients that we are open to serve your dermatologic needs.

Protecting your health now is more important than ever, and the safety for our patients and staff is our utmost concern. We are adhering to Centers for Disease Control and Prevention (CDC) and American Academy of Dermatology safety guidelines to ensure the safety of your visit to our office.

We have implemented the following procedures and steps:

  • You can now check in for appointments directly from your car, and a nurse will escort straight to your exam room.
  • Masks are required for all patients and staff, and staff members are required to wear gloves.
  • Office appointments will be spread out to minimize interactions with others and to maintain social distancing.
  • Sanitary office environment. The office is sanitized and disinfected multiple times a day, including before and after each patient visit.
  • Staff are required to wash their hands before and after every patient with soap and water or alcohol-based hand rubs.
  • Telehealth Visits. We can also see patients virtually from the privacy and safety of their homes. For more information on the ease and convenience of a telehealth visit, please see below. Depending on your condition, we may need to see you at the office.
  • The Dermatology Specialists can now order COVID-19 antibody testing for all patients through local labs such as LabCorp and Quest. There is no cost to you per the 4/11/20 Press Release at www.cms.gov regarding Expanded Coverage for Essential Diagnostic Services Amid COVID-19 Public Health Emergency.
  • Patient and staff safety remain our number one concern.

For telehealth instructions, download the following PDF Here