Our San Antonio - Stone Oak location has closed. Dr. Petr will now see all patients at U.S. Dermatology Partners San Antonio.

U.S. Dermatology Partners Medical District

U.S. Dermatology Partners Medical District

1213 Hermann Dr #650
Houston, Texas 77004

We are located inside the Plaza Medical Center building in the Park Plaza Hospital complex. The building is located on the corner of Hermann Drive and Caroline. The parking garage is attached to our building, and the entrance is located on Caroline, which runs parallel to San Jacinto.

Get Directions

(713) 528-8882

Fax: (713) 528-8883


7:30AM - 4:00PM
7:30AM - 4:00PM
7:30AM - 4:00PM
7:30AM - 4:00PM
7:30AM - 12:00PM

About Us

We are Houston’s state-of-the-art dermatologic surgery practice, committed to every adult and pediatric patient. We work hard to ensure our patients receive the most effective treatment for their dermatologic issue or skin cancer in a caring and modern setting.

Our goal is to make our patients feel comfortable and at ease while receiving the newest and most sophisticated medial therapies available.

We Are Mohs Surgery Specialists

Mohs micrographic surgery is today’s preferred treatment for basal cell carcinoma and squamous cell carcinoma skin cancers. By allowing for the complete removal of skin cancer while preserving the most amount of healthy skin, Mohs leads to minimal scarring. When completed successfully, Mohs can result in a 99% cure rate.

What Our Patients Say

Ryan Ahern, MD
5 Stars  Ryan Ahern is a terrific doctor. He is professional, caring, good patient approach, explains what and why he is doing something. Actually listens to patients ( what a concept). Most importantly he is trustworthy. I will and have highly recommended as competent , decent caring, professional Ron Vardy –
Source : Healthgrades – Mar 20, 2018
Ryan Ahern, MD
5 Stars  After a disastrous experience trying to schedule elsewhere, I took control of who was going to do my excision. I landed with Ryan Ahern in Houston. Staff worked very hard to help me get moved from the other doctor and got me scheduled. A++ Medical Assistants were awesome. Thorough and genuinely nice. A+ Dr. efficient and completed the surgery in one pass. He was willing to wait for and use more lidocaine. And he has easy going nature that speaks,to why the staff are great, too. Recommend 100%. –
Source : Healthgrades – Apr 18, 2017
Ryan Ahern, MD
5 Stars  great doc. happy w quick same day service on procedures. –
Source : RateMDs – Oct 26, 2016

Services Offered at U.S. Dermatology Partners Medical District

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