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Dr. Sidney Alexander, MD

Dr. Sidney Alexander, MD

Age 90 Cardiology M
Star rating icon (10) 10 reviews
Accepting New Patients


Dr. Sidney Alexander, MD is a cardiology specialist in Burlington, MA. Dr. Alexander completed a residency at Brigham & Women'S Hosp, Internal Medicine. He currently practices at Lahey Outpatient Center, Lexington and is affiliated with Emerson Hospital. He accepts multiple insurance plans. Dr. Alexander is board certified in Cardiovascular Disease.


  • Brigham & Women'S Hosp, Internal Medicine, Residency Hospital
  • Peter Bent Brigham Hosp-Har, Fellowship Hospital — 1962
  • Brigham and Womens Hospital, Internship Hospital — 1958
  • Harvard University / School Of Medicine, Medical School — 1957

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Massachusetts
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • MultiPlan
  • Tufts Health Plan
  • UnitedHealthCare

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Sid, I’m still going at 90 thanks to you. Alice and I live in Bozeman MT. Best to you and Susan. My bypasses are 46 years old. Carl
Carl Wathne — Nov 05, 2020
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Dr. Sidney Alexander, MD
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Frequently Asked Questions

Dr. Alexander frequently treats Adult Congenital Heart Conditions.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Emerson Hospital
  • Lahey Hospital and Medical Center


  1. Lahey Outpatient Center, Lexington

    1. 1
      Lahey Outpatient Center, Lexington
      41 Mall Rd, Burlington, MA 01805 (781) 744-2087
  1. Practice

    1. 2
      Lahey Hospital & Medical Center
      67 S BEDFORD ST, Burlington, MA 01803 (781) 744-7000