Same-week surgical access available, including Mohs

OUR TEAM

James Dinulos, MD

James Dinulos, MD

Board-Certified Mohs Surgeon

Dr. Dinulos has been recognized as a New Hampshire Top Doctor for 6 years

Awards

James G. Dinulos, MD, founder, and Medical Director of Seacoast Dermatology, PLLC, specializes in dermatology and Mohs surgery. He and his knowledgeable team expertly care for patients in Portsmouth and Exeter and from the New Hampshire seacoast, Southern Maine, the north shore of Massachusetts, and beyond.

Dr. Dinulos is a former chief of dermatology and resident program director at Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire. He received his medical degree from Eastern Virginia Medical School in Norfolk. After medical school, he completed a residency at the University of Washington School of Medicine. He is also among the first to be board-certified by the American Board of Dermatology in the newly created sub-specialty of Micrographic Surgery & Dermatologic Oncology.

Currently, Dr. Dinulos is a clinical associate professor of surgery at the Geisel School of Medicine at Dartmouth and a clinical assistant professor of dermatology at the University of Connecticut.

As a respected clinical investigator, lecturer, and author, Dr. Dinulos has published over 50 scholarly articles, and many internationally recognized dermatology textbooks. He is a fellow of the American Academy of Dermatology, the American Society for Dermatologic Surgery, and the American Society for Mohs Surgery.

With over 20 years of experience in dermatology and dermatologic surgery, Dr. Dinulos has received numerous peer recognition for his services, such as Castle Connolly Top Doctors, America’s Best Doctors, and Top Doctor by New Hampshire Magazine.

Dr.Dinulos
Dr James G. Dinulos is among the first in the United States to be board-certified by the American Board of Dermatology in the newly created sub-specialty of Micrographic Surgery and Dermatologic Oncology.

Based on 418 patient reviews

Rated 5 out of 5 stars May 14, 2026
I was certainly impressed when he took the extra time to explain what he was doing and the treatment after. I certainly would recommend him to other friends and family members. He also made sure that I was not in any pain while the procedure was going on.
Rated 5 out of 5 stars May 6, 2026
Top notch pros all of them
Rated 5 out of 5 stars May 1, 2026
The experience was very positive from the check-in procedure through the checkout procedure. Everyone of the staff members was capable, competent, professional, attentive, and friendly throughout my visit. Highly recommended!
Rated 5 out of 5 stars April 24, 2026
Dr. Dinulos is the best. I came back from Florida early after a diagnosis that indicated surgery was needed as I didn't want anyone but Dr. Dinulos to do it.
Rated 5 out of 5 stars April 20, 2026
Absolutely great staff a very great experience for my first time with Seacoast dermatology.
Rated 5 out of 5 stars April 8, 2026
It is never a good thing to have to have Mohs procedures…but after just having my 5th one with Dr. Dinulos, I would not go to anyone else. He inspires confidence.
Rated 5 out of 5 stars April 1, 2026
Great team of medical professionals that are friendly caring and superb dermatologists. They are really saving lives every day. 🙏
Rated 5 out of 5 stars March 4, 2026
Great experience with Dr. Dinulos! His entire team are exceptional professionals who made for a quick, efficient and comfortable MOHS procedure! So very fortunate to have this practice as part of my healthcare team!
Rated 5 out of 5 stars March 3, 2026
Had mohs surgery on my nose 7 years ago and just had a surgical removal on my ear. Both experiences were great.
Rated 5 out of 5 stars February 26, 2026
Very professional and personable.
Rated 5 out of 5 stars February 13, 2026
Dr Dinulos and staff were great, minimal incision, no bleeding, and over in 5 minutes !
Rated 5 out of 5 stars November 18, 2025
Dr removed a squamous basal from my forehead. He was clear on action. Good game plan and got it all in first shot
Rated 5 out of 5 stars November 13, 2025
Friendly service, clean offices and easy parking. I checked in, had the procedure and was released as soon as the results arrived.
Rated 5 out of 5 stars October 30, 2025
A10 zero pain cut looks great day 2
Rated 5 out of 5 stars October 15, 2025
Very professional and staff is so pleasant to deal with. Dr. Dinulos is very personable and efficient.
Rated 5 out of 5 stars October 15, 2025
Dr. Dinulos was nice/pleasant and efficient. I had Mohs surgery for basal cells on my face. He made me feel comfortable during the procedure and was able to get all the cancerous cells on the first pass. I’d highly recommend Dr. Dinulos.
Rated 5 out of 5 stars October 15, 2025
Very efficient from check in to checkout Dr Dinoulos has excellent bedside manor broth he and his staff make you feel comfortable thru the entire surgical process - highly recommend
Rated 5 out of 5 stars October 2, 2025
He is very thorough he informed me to get a mri of my head so he can determine mohs procedure mapping I appreciate his concerns
Rated 5 out of 5 stars October 1, 2025
If you’re looking for a highly qualified, competent and experienced doctor to detect skin cancer and to treat it, you’ll want to see Dr. James Dinulos. Seacoast Dermatology is outstanding.
Rated 5 out of 5 stars September 28, 2025
Dr. Dinulos is amazing. He puts you at ease while he is fully explaining what is going to be done. His staff is professional, personable, and thorough.
Rated 5 out of 5 stars September 26, 2025
The entire team went above and beyond to make my visit as seamless as possible, thank you.
Rated 5 out of 5 stars September 24, 2025
Dr Dinulos was very thorough, explained two procedures that he could do and gave me the choice. He explained the procedure and did a great job. I was very happy with him and would recommend him to anyone.
Rated 5 out of 5 stars September 24, 2025
They have a great staff know what they’re doing. Made me feel very comfortable in an uncomfortable situation very professional !
Rated 5 out of 5 stars September 19, 2025
Dr. Dinulos is great. He has so much patience and gives you all the time you need to discuss your concerns. I really think he’s a perfectionist with an extremely broad understanding of skincare and skin issues. I’ll be going back!
Rated 5 out of 5 stars September 19, 2025
I had a laser treatment with Dr. Dinoulos, great experience!

Portsmouth, NH

330 Borthwick Ave.
Suite 303
Portsmouth, NH 03801

Portsmouth, NH

278 Lafayette Rd, Bldg E, PortsmouthNH 03801

Dover, NH

750 Central Ave, Suite O, DoverNH 03820

Exeter, NH

1 Hampton Rd
Building B, Suite 208
Exeter, NH 03833