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


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See WhatOur Clients Are Saying

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Just a note to thank you for my surgery. The graft has taken well and it seems to be healing nicely. Since I was diagnosed with myeloma and lymphoma, I have been treated by a number of doctors and surgeons. You have been one of the very best. You were friendly, took time to explain things in easy-to-understand terms. You are a very skilled surgeon. I was treated more as a friend, not just another number. It's never fun to go to doctors, but you make it as enjoyable as possible. Thanks.

—PS
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Looking back on 2003, my family and I have faced many stressful and trying times traveling back and forth from doctor's office to office.  We are very fortunate to have such a caring doctor along with staff who are always willing to help in anyway possible. Thank you and your staff for not giving up and traveling down this long, hard road with me. You have always been straight up and honest with me and had my best interest in mind, not many doctors are like that and take things as personal.

—PE
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Just want you to know how pleased I was with the exceptional care received.  Never in my 84 years have I felt so comfortable in a medical setting!

—EK
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Wanted to say thank you for what you did on my behalf.  I could see why you were voted one of the Best Doctors.  You're kind, considerate, thoughtful, and make your patients comfortable.

—LS
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A royal thank you for treating me like a queen.

—EC
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A young lady at the entrance greeted me in such a friendly manner that the expression on her face, her posture, and her words caught my attention. The instructions are also striking: "you may bathe", "please try to stop smoking", "we would prefer", "please perform a few days", "please be patient as you heal." And finally, "We wish you a speedy recovery." These instructions come from doctors and nurses who are authorities in dermatology. Yet, they are delightfully modest.

—W
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Thank you all for being so kind, compassionate, and caring.

—PR
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Your husband is a super surgeon! Also a super person! The entire office is very super! My experience there has been wonderful. I appreciate all the knowledge and friendly atmosphere.

—NT
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