Dr. Mark Koone, MD

Dr. Mark Koone, MD

Dermatologist
230 E Sycamore St, Ste 305, Sherman, TX
Dr. Mark Koone is board-certified by the American Board of Dermatology and has been in private dermatology practice since 1990. Dr. Koone has practiced in Sherman and Paris, Texas since 1993. He also served for 25 years as a dermatologist for the Austin College Student Clinic. Dr. Mark Koone earned a bachelor’s degree magna cum laude from Houston Baptist University with majors in chemistry and biology. He earned a Doctor of Medicine with high honor at Baylor College of Medicine and served an internal medicine internship with Baylor College of Medicine–St. Luke’s Episcopal Hospital. His dermatology residency was served at Duke University Medical Center, where he finished as Chief Resident. While in practice in Sherman, he has been selected to “Hall of Fame” and “Best of Texoma” in 2023, “Best Doctors in America” every year from 1995 to 2020, has been named a “Texas Super Doctor” in Texas Monthly each year from 2008 to present, putting him in the “Texas Super Doctors Legacy Hall of Fame”. He currently is a member of the Texas Dermatological Society, where he has been a trustee. He has served as an advisory board member of the American Academy of Dermatology and as president of the Dallas Dermatologic Society. He and his wife have one adult son, daughter-in-law, and grandson that live in Houston.
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About Dr. Mark Koone

Dr. Mark Koone is board-certified by the American Board of Dermatology and has been in private dermatology practice since 1990. Dr. Koone has practiced in Sherman and Paris, Texas since 1993. He also served for 25 years as a dermatologist for the Austin College Student Clinic. Dr. Mark Koone earned a bachelor’s degree magna cum laude from Houston Baptist University with majors in chemistry and biology. He earned a Doctor of Medicine with high honor at Baylor College of Medicine and served an internal medicine internship with Baylor College of Medicine–St. Luke’s Episcopal Hospital. His dermatology residency was served at Duke University Medical Center, where he finished as Chief Resident. While in practice in Sherman, he has been selected to “Hall of Fame” and “Best of Texoma” in 2023, “Best Doctors in America” every year from 1995 to 2020, has been named a “Texas Super Doctor” in Texas Monthly each year from 2008 to present, putting him in the “Texas Super Doctors Legacy Hall of Fame”. He currently is a member of the Texas Dermatological Society, where he has been a trustee. He has served as an advisory board member of the American Academy of Dermatology and as president of the Dallas Dermatologic Society. He and his wife have one adult son, daughter-in-law, and grandson that live in Houston.

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Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Benign or precancerous skin growths
Psoriasis
Acute skin infection
Benign or precancerous skin growths
Psoriasis
Acute skin infection

Office location

Texoma Associated Dermatologists
230 E Sycamore St, Ste 305, Sherman, TX 75090

Education and background

Practice names

Board certifications

  • American Board of Dermatology

Education and training

  • Medical School - Medical School - Baylor College of Medicine, Doctor of Medicine
  • Houston Christian University (Bachelor's)
  • Baylor St. Luke's Medical Center - Houston, TX, Internship in Internal Medicine

Professional memberships

  • Texas Dermatological Society
  • American Academy of Dermatology

Languages spoken

  • English

Provider's gender

Male

NPI number

1720055833

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Frequently asked questions

How soon can I make an appointment with Dr. Mark Koone?

Generally, Dr. Mark Koone has appointments available on Zocdoc within 1 week. You can see Dr. Koone's earliest availability on Zocdoc and make an appointment online.

Is Dr. Mark Koone accepting new patients?

Dr. Mark Koone generally accepts new patients on Zocdoc. You can see Dr. Koone's earliest availability on Zocdoc and schedule an appointment online.

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Can I make an appointment with Dr. Mark Koone online?

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What practice does Dr. Mark Koone work with?

Where is Dr. Mark Koone's office located?

Dr. Mark Koone's office is located at 230 E Sycamore St, Sherman, TX 75090.

Which board certifications does Dr. Mark Koone have?

Dr. Mark Koone is certified by American Board of Dermatology.

What are common reasons for patients to see Dr. Mark Koone?

Dr. Mark Koone frequently sees patients for Acne, Allergy Consultation, Annual Skin Screening, Dermatology Consultation, and Sexually Transmitted Infection (STI). You can see other visit reasons for Dr. Mark Koone on their profile.

What languages does Dr. Mark Koone speak?

Dr. Mark Koone speaks English.

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