New Search Juan A. Guardia MD Primary Specialties Internal Medicine 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 - University of Panama Medical School Residency - Jackson Memorial Hospital Medical Education - Jackson Memorial Hospital