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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I thought I recognized Dr. Dhir and it turns out he had done 2 surgeries on me at HealthySkin in 2017. We meet again thankfully. We also appreciated your air filter system and how cool your office is decorated. Very restful colors.

—JD
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We both want to thank you and your "cohorts"-not only for the surgery well done-but the sensitivity and thoughtfulness you provided. Thank you.

—MC
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We are grateful for your gifted surgical skills and thankful for your wonderful compassion.

—SM
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Thank you so much! Sorry I cried. I get hormonal sometimes! You all were great and I appreciate everything you did for me!

—MW
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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
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Your staff is amazing, so professional, caring, and kind.  Should you ever find yourself in Maine during the Summer, I'd like to treat you to a lobster dinner.  Thank you again for your amazing work.

—LD
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I just wanted to thank you for taking such good care of my mother through two separate procedures. You have a kind and calming manner that is very rare today in the medical field, especially with the elderly, the ones that need it the most. And it is very much appreciated. Thank you again. May God bless you and your family.

—DB
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Thank you for taking good care of me. Mohs surgery is difficult. You all made it easier.

—TD
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You have been absolutely wonderful during this surgery. Thanks so much for your genuine concern and kindness. All of us have been so impressed with your medical expertise, as well as your sincere (and almost forgotten) love for your profession and your patients. You truly are the epitome of a great physician—one to be highly recommended, respected, and recognized. Thanks so much for a job well done and for treating your patients as people, not simply a paycheck.

—RS
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Doctor Dhir and staff, I appreciated the high level of professional and personal care. Explanation of treatment, pathology, and care was thorough, appropriate, and excellently delivered. Thanks!

—DK
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