Expert skin care for New Hampshire’s coastal community.
With convenient locations in Exeter, Portsmouth, and Dover, NH, we combine state-of-the-art technology with over 20+ years of experience to offer you the highest standard of care. Trust us to safeguard your health and enhance your natural beauty every step of the way.
Your Dermatology Experts
Dr. James Dinulos, Dr. Andrew Werchniak, Dr. Robert Gordon, and Dr.Arthur Marka lead the expert team at Seacoast Dermatology to provide you with a full range of medical and surgical services for the treatment of all dermatologic conditions. We are proud to be a physician-led and locally operated dermatology practice with offices in Exeter, Portsmouth, and Dover, New Hampshire.



Careers at Seacoast Dermatology
When you join our dermatology team, you’re not just starting a job — you’re joining a close-knit family and vibrant community.
Patient Reviews
My annual physical at Seacoast Dermatology a few years ago saved my life. I cannot say enough about the quality of preventive medicine at this practice.
As soon as my melanoma was diagnosed my doctor had surgery scheduled within days. The doctor and nurse were very caring and assured that I was kept comfortable. Very clear directions were given for next steps.
Dr. Dinulos is an outstanding surgeon...thorough in thought and examination. His approach shows the fine academic teaching from Dartmouth.
I was able to get an annual preventative visit on short notice. The staff was accommodating as I know they are quick appointment times. They were able to answer my questions and explained procedures.
Very friendly staff! Knowledgeable and very efficient with time. After having a consult, I was able to walk right next-door and book my procedure. My mother had an appointment also, and we both feel we will recommend them to friends and family!
Doctor Gordon has a way of doing his job and he makes you feel comfortable. I find him refreshing he is smart and has a sense of humor!!!
SKINCARE SERVICES
Comprehensive Skincare Services
ARTICLES
From Our Skin Experts: Tips, Trends & Treatments
Make Seacoast Dermatology Part of Your Annual Routine
Dr. James Dinulos – Mohs Surgeon and the Seacoast Dermatology team specializes in diagnosis, prevention and skin cancer treatment.

Prevention Saves Lives
Skin cancer is one of the most common types of cancer, but when detected early, it is also highly treatable.
If you’ve noticed any changes in your skin, such as new moles, spots, or changes to existing ones don’t wait.

Skin Cancer Specialists
Dr. James Dinulos specializes in skin cancer treatment and is a board-certified expert in Mohs surgery.
He works closely with his team of advanced practitioners to provide a 360 treatment plan for patients.

Local Clinics
Seacoast Dermatology offers patients two state of the art skin cancer surgical centers one in Portsmouth (Lafayette Rd.) and in Exeter, NH.
All of our locations feature state of the art facilities, and highly trained dermatology teams.

Discover the Seacoast Dermatology Difference
We are an academically affiliated local practice that brings state-of-the-art dermatology training and years of clinical experience from top academic centers to our community, advancing dermatology through teaching, scholarly writing, and textbook contributions, while earning numerous patient and peer awards, including Best of the Seacoast, Best Doctor, and Best Nurse.