Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Jonathan Alexander, MD

Individual provider Cardiovascular Disease Physician · NPI 1710921754

Jonathan Alexander, MD is a Cardiovascular Disease (Cardiology) in Danbury, Connecticut. Graduated from Harvard Medical School in 1973, 53 years ago. Offers telehealth. Licensed in Connecticut.

Years since qualifying
53
Trained at
Harvard Medical School
Licensed in
CT
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

24 Hospital Ave
Danbury, CT 06810-6099
Phone: (203) 797-7379
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 018828 (CT)

Record details

NPI number1710921754
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESJuly 8, 2007
Mailing address24 Hospital Ave, Danbury, CT 06810-6099

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1973 (53 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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