SLUCare Physician Group
Carlos Portales Castillo, MD
Infectious Disease, Internal Medicine

SLUCare Physician Group
1225 S. Grand Blvd., Second Level St. Louis, MO 63104
Dr. Carlos Portales Castillo is an infectious disease specialist who provides consultations - both inpatient and outpatient - for patients ages 18 and older. Some of the infectious diseases he has treated include actinomycosis, osteomyelitis, and Lyme disease. He also specializes in transplant infectious diseases.
Dr. Portales Castillo provides the best, most up-to-date, evidence-based care for patients, particularly those with complicated infections and compromised immune systems. His clinical and research interests include infections in immunocompromised hosts; antimicrobial stewardship/infection control in transplant; cytomegalovirus (CMV) infection; and head and neck infections.
Dr. Portales Castillo is an assistant professor with the Division of Infectious Diseases, Allergy & Immunology in the Department of Internal Medicine at Saint Louis University School of Medicine. He is also a member of the Infectious Disease Society of America and the American College of Physicians.
Fun fact: Dr. Portales Castillo enjoys coffee, jazz, and spending time with his dogs.
Dr. Portales Castillo provides the best, most up-to-date, evidence-based care for patients, particularly those with complicated infections and compromised immune systems. His clinical and research interests include infections in immunocompromised hosts; antimicrobial stewardship/infection control in transplant; cytomegalovirus (CMV) infection; and head and neck infections.
Dr. Portales Castillo is an assistant professor with the Division of Infectious Diseases, Allergy & Immunology in the Department of Internal Medicine at Saint Louis University School of Medicine. He is also a member of the Infectious Disease Society of America and the American College of Physicians.
Fun fact: Dr. Portales Castillo enjoys coffee, jazz, and spending time with his dogs.
About Me
Specialties
Infectious Disease
Internal Medicine
Gender
Male
Languages
Spanish
Education
Universidad Autonoma de San Louis Potosi
Medical School, 2019
Universidad Autonoma De San Luis Potosi Facultad De Medicina
Medical School, 2019
Massachusetts General Hospital
Fellowship, 2025
Rochester General Hospital
Residency, 2023
Massachusetts General Hospital - Boston, MA
Fellowship, 2025
Hospital Affiliations
SSM Health Good Samaritan Hospital - Mt. Vernon
SSM Health Saint Louis University Hospital
SSM Health St. Mary's Hospital - Centralia
SSM Health St. Mary's Hospital - Jefferson City
Certifications
American Board of Internal Medicine
American Board of Internal Medicine/Infectious Disease
Drug Enforcement Administration
Illinois Department of Financial & Professional Regulation
Missouri Dept of Health/Narcotics&Dangerous Drugs
Missouri State Board of Registration
Medical Interests
Osteomyelitis
Tick borne infections
Bacterial infections
Infections in solid organ transplantation
Reviews
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Map & Directions
SLUCare Physician Group
1225 S. Grand Blvd., Second Level St. Louis, MO 63104
Mon
8:00 am - 4:30 pm
Tue
8:00 am - 4:30 pm
Wed
8:00 am - 4:30 pm
Thu
8:00 am - 4:30 pm
Fri
8:00 am - 4:30 pm
Sat
Closed
Sun
Closed



