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Internist, Critical Care Specialist, Pulmonologist (lungs)
23 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Mario Castro:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Mario Castro is Good. Dr. Castro has been reviewed by 2 patients who have provided 0 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Mario Castro, MD is board certified in Critical Care Medicine and Pulmonary Disease.

  • He has special expertise in 13 areas:
  • Asthma
  • Bronchiectasis
  • Chronic Bronchitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Cough
  • Emphysema
  • Interstitial Lung Diseases
  • Pulmonary Emphysema (COPD)
  • Pulmonary Fibrosis
  • Pulmonary Hypertension
  • Pulmonary Sarcoidosis
  • Sarcoidosis
  • Vasculitis

Education & Awards

Dr. Castro graduated from University of Missouri at Kansas City.


Dr. Castro has 3 hospital affiliations:

  • Missouri Baptist Hospital Sullivan 
  • Barnes Jewish Hospital 
  • Siteman Cancer Center 


  • Spanish

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Additional Information
Dr. Mario Castro MD is a male Internist, has 23 years of experience and practices in Internal Medicine, Critical Care Medicine, and Pulmonary Disease.
Where does Dr. Mario Castro practice?
Dr. Mario Castro has 1 office location.
Dr. Mario Castro practices Internal Medicine, Critical Care Medicine, and Pulmonary Disease near Saint Louis, MO.
See Saint Louis Internists, Saint Louis Critical Care Practitioners, and Saint Louis Pulmonologists.