Dr. William Parsons, MD


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Dermatology Associates of San Antonio
18540 Sigma Road
San Antonio, Texas 78258 [MAP]
For an appointment, call (210) 490-4661

Medical Expertise of Dr. William Parsons, MD

Diagnosis and treatment of skin conditions, including acne, eczema, rosacea, psoriasis and skin cancer.

About Dr. William Parsons, MD

Dr. William T. Parsons is a dermatologist providing medical care to patients in the San Antonio, Texas area.  After completing his medical degree at the Medical University of South Carolina, Dr. Parsons then completed his internship in internal medicine at the Medical College of Georgia Hospitals, followed by a residency in dermatology at the Brooke Army Medical Center.

Make an appointment with Dr. William T. Parsons by contacting Dermatology Associates of San Antonio in San Antonio.

Conditions Treated

Aging Skin & Wrinkles
Allergic Contact Dermatitis
Atopic Dermatitis
Hair Loss (Balding)
Seborrheic Keratosis
Skin Cancer

Patient Education Resources

Does the food I eat affect my acne?
There is some evidence to suggest that diet can play a role in the development of acne. Studies have found that a diet high in sugar and processed foods can increase the risk of developing acne. Diets...
How can I reduce the skin redness caused by rosacea?
There are several ways to reduce the skin redness caused by rosacea:Avoiding triggers: Triggers such as sun exposure, wind, high temperatures, stress, spicy foods, and alcohol, can worsen the symptoms...
How Does Isotretinoin Work to Treat Acne?
Isotretinoin, previously marketed as Accutane, is a medication that is used to treat severe cystic acne that has not responded to other treatments. Isotretinoin is a form of vitamin A and works by ...
How is atopic dermatitis different from eczema?
Atopic dermatitis and eczema are often used interchangeably, but they are not exactly the same thing. Atopic dermatitis is a type of eczema.Eczema is a general term that refers to a group of condition...
What is facial rejuvenation?
Facial rejuvenation refers to a variety of cosmetic treatments that are designed to improve the appearance of the face and make it look more youthful. These treatments can include a combination of non...

Education & Training

  • Residency: San Antonio Uniformed Services Health Education Consortium
  • Internship: Medical College of Georgia
  • Medical School: Medical University of South Carolina College of Medicine

Professional Affiliations

Dermatology Associates of San Antonio

Established in 1985, Dermatology Associates of San Antonio offers comprehensive care in medical, surgical and cosmetic dermatology. Our staff of board-certified dermatologists, led by Dr. William Parsons, can be relied on to provide you with the most current and trusted treatments for the Skin, Hair and Nails while offering the latest in dermatologic technology available. Our three convenient locations continue to grow, offering the latest techniques and time-tested resolutions. We have been serving the San Antonio community for over twenty-eight years and have physicians capable of meeting the needs of each patient, from children to grandparents, reaching any demographic. Three of our doctors have served in the military, and DermSA is proud to assist that special group.