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Our Doctors

Our highly-accomplished doctors were recognized in Oklahoma Magazine's Top Doctors 2018, Best of the Best 2018 and 2017 Top Doctors, as well as Tulsa People's A-List 2017: Head to Toe.

Donald R. Seidel, M.D.

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Dr. Seidel is a 1989 graduate of the University of Kansas School of Medicine. He completed his dermatology residency at the University of New Mexico School of Medicine in 1993. Dr. Seidel joined Tulsa Dermatology Clinic, Inc. in 1993. He is board certified in dermatology. In addition to our Tulsa office, Dr. Seidel practices in Claremore on Thursdays. He treats all medical and surgical dermatology diseases.

Dr. Seidel is certified by the American Board of Dermatology.

Dr. Seidel and his staff are awesome! My family and I have been patients for several years and I am impressed with their dedication and professionalism. HIGHLY RECOMMEND!

-Via Healthgrades

Mark D. Lehman, M.D.

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Dr. Lehman is a 1992 graduate of Texas Tech University School of Medicine. He completed his dermatology residency at the University of New Mexico School of Medicine in 1996. He joined Tulsa Dermatology Clinic, Inc. in 1996. Dr. Lehman is board certified in dermatology. Dr. Lehman treats all medical and surgical dermatology diseases with a special interest in laser surgery.

Dr. Lehman is certified by the American Board of Dermatology.

I just met Dr Lehman this week (my previous derm in this office, Dr. Gregg retired). Dr. Lehman is INCREDIBLE!! He listens and he explains things extremely well and makes things easy to understand. He is the 3rd new dermatologist I have tried in the past couple of months and will definitely be the one that I stick with! He is a true caring professional, which seems to be difficult to find these days.

-Via RateMDs

George W. Monks, M.D.

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Dr. Monks is a 1999 graduate of the University of Oklahoma School of Medicine. He completed his dermatology residency at O. U. in 2003. He joined Tulsa Dermatology Clinic, Inc. in 2003. Dr. Monks is board certified in dermatology. Dr. Monks treats all medical and surgical dermatology diseases with a special interest in skin cancer, psoriasis and Botox.

Dr. Monks is certified by the American Board of Dermatology.

Dr. Monks was great, very kind, nurse was awesome. Took care of me. Very happy!

-Ed via Healthgrades

Kelli A. Lovelace, M.D.

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Dr. Lovelace is a 2003 graduate of the University of Oklahoma School of Medicine. She completed her dermatology residency at O.U. in 2007. She joined Tulsa Dermatology Clinic, Inc. in 2007. Dr. Lovelace is board certified in dermatology. In addition to our Tulsa office, Dr, Lovelace is seeing patients at our Claremore location on Tuesdays. Dr. Lovelace treats all medical and surgical dermatology diseases with a special interest in Botox and daily anti-aging skin care.

Dr. Lovelace is certified by the American Board of Dermatology.

A friend recommended Dr. Lovelace to me and I am so thankful! Dr. Lovelace is wonderful. She is friendly, knowledgeable and attentive. My daughter (14) has seen her now too and absolutely loves her as well!

-KJA via Healthgrades

Christina G. Kendrick, M.D.

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Dr. Kendrick holds an undergraduate degree from Harvard University. She completed her M.D. at the University of Oklahoma Health Sciences Center. After her preliminary year of residency in Internal Medicine at OUHSC, she completed her Dermatology residency at Louisiana State University in New Orleans. Dr. Kendrick practiced with Harvard Medical Physicians Group in Boston for 3 years and with Dermatology Consultants of Marin in San Rafael, California for 1 year before returning to Oklahoma. She has experience in medical, surgical and cosmetic dermatology.

Dr. Kendrick is certified by the American Board of Dermatology.

My husband and I both are patients. She as well as her staff are friendly, and thorough. Her treatments of us were superb. We would recommend her very highly who needs this type of professional care. She has been our doctor for several years.

-Via Healthgrades

Ashwini K. Vaidya, M.D.

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Dr. Vaidya holds an undergraduate degree from Duke University. She completed her M.D. at the University of Oklahoma College of Medicine. After her internship in Internal Medicine at Evanston Northwestern Healthcare in Evanston, Illinois, she completed her Dermatology residency at the University of Illinois at Chicago. Dr. Vaidya practiced with Dermatology Associates of Tulsa for 9 years before joining Tulsa Dermatology Clinic, Inc., in 2013. She has experience in medical, surgical and cosmetic dermatology.

Dr. Vaidya is certified by the American Board of Dermatology.

Before Dr. Vaidya I had seen several different dermatologists. She found what I was allergic to and a medication to control it. If you have a serious problem save yourself some misery and start with her! Plus, she is super nice and compassionate. I wish I could give her 10 stars.

-Acy via Healthgrades

Emily L. Kollmann, D.O.

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Dr. Kollmann attended medical school at Oklahoma State University and completed her residency in dermatology at Northeast Regional Medical Center in Kirksville, Missouri. Dr. Kollmann joined Tulsa Dermatology Clinic, Inc. in 2017. She is seeing patients at our Claremore location on Wednesdays.

Dr. Kollmann is certified by the American Board of Dermatology.

Total pro. My vote for best doctor in Oklahoma!

-Via Healthgrades

Creed Stewart, M.D.

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Dr. Stewart attended medical school and completed his dermatology residency at the University of Oklahoma College of Medicine. He is a member of the Alpha Omega Alpha medical honor society. He recently moved to Owasso from North Texas and has been practicing dermatology for over 19 years. Dr. Stewart has extensive experience in general dermatology and skin cancer treatment. In addition to our Tulsa office, Dr. Stewart is seeing patients at our Claremore location on Mondays and Fridays.

Dr. Stewart is certified by the American Board of Dermatology.

Dr. Stewart was awesome as was my overall visit to Tulsa Dermatology; they were professional, thorough and timely. All in all, a great experience.

-Amanda W. via Healthgrades

Courtney Cook, D.O.

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Dr. Cook is a 2020 graduate of the Oklahoma State University College of Medicine. She completed her dermatology residency at the University of Oklahoma in 2024. She just recently joined Tulsa Dermatology Clinic, Inc. in July of 2024. Dr. Cook is board certified in dermatology. Dr. Cook treats all medical and surgical dermatology diseases with a special interest in skin cancer, Botox, and rashes (including psoriasis and eczema).

Dr. Cook is certified by the American Board of Dermatology.