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Due to interest in the COVID-19 vaccines, we are experiencing an extremely high call volume. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this website. Our vaccine supply remains limited. Read all COVID-19 Vaccine Information.

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Steven J Mason, M.D.


Languages: English, French




Johns Hopkins Cardiology - GBMC

6569 N. Charles Street
Suite 600
Baltimore, MD 21204 map
Phone: 443-849-8989 | Fax: 443-849-8988

Chesapeake Cardiovascular

9101 Franklin Square Drive
Suite 104
Baltimore, MD 21237 map
Phone: 410-574-1330 | Fax: 410-574-2691

Chesapeake Cardiovascular

120 Sister Pierre Drive
Suite 303
Baltimore, MD 21204 map
Phone: 410-825-2981 | Fax: 410-574-2691


Departments / Divisions



  • MD; Harvard Medical School (1972)


  • Internal Medicine; Beth Israel Deaconess Medical Center (1974)


  • Cardiology; Johns Hopkins University School of Medicine (1978)

Board Certifications

  • American Board of Internal Medicine (Cardiovascular Disease) (1979)
  • American Board of Internal Medicine (Internal Medicine) (1975)

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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