New Search Reuben Valentin MD Primary Specialties Nephrology South Texas Kidney Specialists, PA (MRTX) Address: 1901 S. 1st St., Suite 600 McAllen, TX 78503 Phone: (956) 631-6136 Fax: (956) 631-1848 Recommend this Physician Education Medical Education - Universidad Autonoma De Guadalajara Internship - Univ of TX Health Science Center of San Antonio Residency - Univ of Texas Medical School at San Antonio