Stone Oak Clinic

Evening Clinic

Hours: Mon. 8A.M-5P.M
Tue. 8A.M-8P.M
Wed-Fri 8A.M-5P.M
20821 U.S. 281 | San Antonio, TX 78258-7593
Telephone: (210) 546-1600 | Fax: (210) 546-1610

Aaron King M.D. is a board certified family practice physician with interests in the areas of diabetes, hyperlipidemia and metabolic syndrome. Dr. King started his career as a physician in the United States Navy from 2001 until 2007, serving in both domestic and overseas locations.


Dr. Dan Powell was born in Amarillo, Texas and was raised in the Dallas-Fort Worth area. Dr. Powell attended medical school at the University of Texas Health Science Center, where he received his degree in 1991 and completed his residency program at St. Joseph's Hospital in Denver, Colorado.


Mr. Hernandez was born and raised in Mission City, Texas of the beautiful Rio Grande Valley. Upon graduating high school, he attended undergraduate school to earn his Bachelor of Science in Biology at the University of Texas-Pan American. He continued his Physician Assistant degree at the University of Texas Rio Grande Valley.


Ms. Stauffer grew up in the Virginia Beach, Virginia area. Having been raised in a military family, she had the opportunity to live in Mississippi, Florida and Georgia.



Dr Powell was wonderful, attentive, respectful and thorough. I'm extremely happy with his services!

Dr. King is helpful and truly cares about my well being. He is the best Doctor that I have had.

Dr. Dan Powell is consistently caring and congenial--pretty much the ideal physician.

Dr. King is outstanding. I followed him from his last organization to yours. I will keep following him where ever he goes. Excellent doctor, great guy.

Dr Powell exemplifies the meaning of "at your service"!!!!! He has always shown the care and concern for my issues and always gets me back to par. I've never been to any doctor office that treats me as well as Dr Powell and Team. You're very fortunate to have him on your Team.

Dr. King is a great doctor, easy to talk to. He answers all my questions. My daughter, Naomi Bott is also his patient!

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