WellMed at Pecan Valley
4243 E. Southcross, Suite 205
San Antonio, TX 78222
Phone (210) 304-3500
Fax (210) 337-2909

Richard Castillo, D.O. Board Certified Family Practice
- Osteopathic Medical Degree-Texas College of Osteopathic Medicine, Fort Worth, Texas
- Honors graduate-The University of Texas at San Antonio
- Residency, Family Practice-Scott-White Hospital, Temple, Texas
- Member of the clinical faculty at UTHSC preceptorship program
- Dr. Castillo is married and has two sons and one daughter
Sandra Guerrero, M.D. Board Certified Family Practice
- Medical Degree-The University of Texas Medical School, Houston, Texas
- Bachelor of Science degree, Biomedical Science-Texas A&M University, College Station, Texas
- Residency, Family Practice-Corpus Christi Family Practice Residency Program, Corpus Christi, Texas
- Dr. Guerrero enjoys bicycling, traveling and snorkeling
Richard Villafana, M.D. Board Certified Family Practice
- Medical Degree-University of Texas Health Science Center at San Antonio
- Undergraduate degrees-St. Mary’s University and Notre Dame
- Residency, Family Practice-University of Texas Houston SW General Hospital Family Practice program
Elenora Duke, M.D. Board Certified Internal Medicine
- Medical Degree, Internship and Residency – The University of Texas Health Science Center at San Antonio
- Bachelor’s degree, Biology (Magna Cum Laude) – St. Mary’s University, San Antonio
- Bilingual in English and Spanish
- Dr. Duke has three children
Christopher Pomelow, P.A.-C. Board Certified Physician Assistant
- Certification-Physician Assistant National Certifying Examination
- Master of Science degree, Physician Assistant Studies-Texas Tech University Health Science Center Physician Assistant Program, Midland, Texas
- Bachelor of Science degree, Biology-Angelo State University, San Angelo, Texas
- Member of the Texas Academy of Physician Assistants and Association of Family Practice Physician Assistants
- P.A. Pomelow is married
Aydin Ozan, M.D. Board Certified Internal Medicine
- Medical Degree-The University of Texas Health Science Center at San Antonio
- Bachelor of Science degree (Magna Cum Laude)-St. Mary's University, San Antonio
- Internal Medicine training-Medical College of Ohio, Toledo, Ohio
- Became a member of the faculty at The Medical College of Ohio, then worked in private practice in Northwest Ohio
- Dr. Ozan is married and has one child