Our Story

Old School Surgeon, New School Knowledge

A Modern Practice with a Personal Touch

As modern medicine has become more impersonal and rushed, many of us miss the days when physicians and staff took the time to provide kinder, higher quality, and more individualized care.

Dr. Dhir and his wife of 28 years, Nathalie Dhir, BSN, created Arizona Mohs Surgery & Dermatology to provide the best of both worlds: top-quality, experienced surgical & dermatologic care in a personable, attentive, cost-effective setting.

Arizona Mohs Surgery & Dermatology's team has worked together for many years, and is committed to compassionate care and the pursuit of excellence. We pride ourselves on attention to detail. Our dedicated staff looks forward to treating you with the same kindness, respect, and concern that we would extend to our own family and friends.

Outside of medicine, Dr. Dhir and Nathalie enjoy physical fitness and cooking, and spend as much time as possible with their two grown children, Joshua and Emilie, who both live in New York City. Dr. Dhir has also pursued an amateur career in automotive racing, and Nathalie has produced an award-winning feature film, Burning Kentucky.

Shelby Coplen, PA-C, Taylor Foxworthy, PA-C, and Tabitha Bayne, PA-C, joined our experienced team from 2024-26.  Shelby has practiced medical & surgical dermatology in Tucson since 2018, and Taylor has worked in both dermatology and pediatrics. Tabitha has practiced Dermatology since 2015 at Massachusetts General Hospital, Tucson, and then Oregon.  They also previously all worked together at another local practice.  They are experts in skin cancer screenings, non-Mohs treatment of skin cancer, and treatment of rashes, psoriasis, rosacea, and acne.

Our facility was constructed using the highest quality, "Made-in-the-USA" components and local Tucson talent wherever possible. Over 94% of our building materials, furnishings, fixtures, and equipment is manufactured in the United States, with some surgical instruments and our Zeiss microscope sourced from Germany, Switzerland, and the United Kingdom. Other than our Apple iMacs and iPads, very few items were sourced from China and only when no other viable option was available. We would like to acknowledge the outstanding work done on our behalf by local businesses such as Eglin & Bresler Architects, Venture West Construction, Goodmans Interior Structures, National Bank of Arizona, Desert Lab Studio, AV Specialists, Stat Computer Services, Illuminations, Millwork by Design, Achilles, Aztec Flooring, Effective Signs, Hall Custom Painting, and Creative Printers. Many of these companies went the extra mile to achieve our Made-in-America goal.

Arizona Mohs Surgery & Dermatology demonstrates its commitment to community and country via support of several nonprofits, including Arizona Heroes Memorial, Los Charros Foundation (FFA and 4H), Therapeutic Riding of Tucson, the Jewish Community Center's Garden of Hope, Davis-Monthan Air Force Base, Camp Valor Outdoors, Wreaths Across America, and Angel Charity.

Mohs surgery infographic


Contact Us

See WhatOur Clients Are Saying

quote icon

Not only were the staff very kind and caring, but are a real credit to their profession. I was very impressed with the way they relate to their patients. Thank you for taking the time to explain everything to us. Your staff is very wonderful. You should be very proud of them.

—HH
quote icon

I am very grateful for the care and skill that has eliminated my cancer. Just as you said, it's been 6 months and there is very, very little marking and no numbness. I am very pleased with the results. Thank you.

—SS
quote icon

I feel that my surgery experience was much more pleasant than I had expected because of your expertise along with your gentle, caring nature. You can't know how much that unexpected phone call meant to me.  Comments from family and friends have been that they cannot believe that it has been only a week since the surgery when they saw my forehead. I think they consider you a magician, too!! I hope I never need this type of surgery again but will not be concerned. Thank you.

—GC
quote icon

I don't know anyone who says, "I'm so happy I'm going to the doctor today". However, your staff did an excellent job of making me very comfortable. I know I'm not the only patient and your call was appreciated. It brought back memories of my childhood and our family doctor. You are a good doctor and I would recommend your facility to anyone. I spent a lot of time with your staff and they support you with kindness and compassion.  You made it an experience I can remember with fondness.

—AS
quote icon

Thank you for the very professional and personal care you and your staff provided me yesterday. No one looks forward to surgery of any kind. But your manner and clarity of explanations help to set me at ease. Your staff was very warm, very caring, yet very professional. They explained each part of the process, leaving no uncertainties in my mind about what to expect next. It was very assuring as we moved through the procedure.

—S
quote icon

Thank you for sharing with our Young-At-Heart group. We gained much knowledge from your informative presentation. Your enthusiasm and individual attention will stay with us a long time. The ladies are using the cream and they are praising it highly. Thanks again for giving your time to talk to us.

—CY
quote icon

I just wanted to drop you all a note to say thanks for the treatment I received in your office this week. I was very pleasantly surprised to have everything run as smooth as it did. Also, the follow-up call that evening was appreciated. You all are to be commended on your professionalism and concern.

—BW
quote icon

Thank you so very much for taking such exceptional care of me. I was quite nervous being on the other side of the surgery. You completely put my mind at ease.

—HM
quote icon

I just wanted to let you know how much I appreciate all you've done for me. Since my birthmark is gone, I feel like a new person. I can't stop looking at myself. You and your staff have been so wonderful to me. I just wanted to let you know how much it means to me to have gotten to know all of you. Thanks.

—HS (following three staged surgeries to remove a giant birthmark measuring 8 x 6 inches on the left breast)
quote icon

Merry Christmas and a Happy Holiday to you!  I thank you so much for your thoughts, prayers, and wonderful cards. There is not another doctor like that. You care! That is wonderful.

—SH (after Mohs surgery)
gogoanime