Jonathan Alexander, M.D.

Cardiovascular Disease Internal Medicine

Internal Medicine

(203) 797-7379Danbury, CT
Telehealth Available
NPI Active per CMS — Q2 2026

Jonathan Alexander, M.D. has practiced internal medicine for 53+ years, working in group practice. He graduated from Harvard Medical School in 1973 and has 53+ years of clinical experience. Cardiologists specialize in diagnosing and treating heart and blood vessel conditions including coronary artery disease, and more.

1 of 47 Internal Medicine providers in CTSee all Internal Medicine in Danbury53+ years experienceNPI since 2006

Data updated 2007-07-08 on CMS NPPES

Contact & Location

Practice Location

24 Hospital Ave, Danbury, CT 06810-6099

Patient Reviews

No patient reviews yet. If you've seen Jonathan Alexander, your feedback helps other patients.

Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →

Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Internal MedicineCardiovascular Disease in DanburyAllopathic & Osteopathic Physicians

Cardiologists specialize in diagnosing and treating heart and blood vessel conditions including coronary artery disease, heart failure, arrhythmias, valve disorders, and hypertension. They perform diagnostic procedures such as echocardiograms, stress tests, and cardiac catheterization.

Taxonomy: 207RC0000X

Education & Training

Harvard Medical School (Class of 1973)

Virtual Cardiovascular Disease Care With Jonathan Alexander

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Jonathan Alexander for follow-ups, medication reviews, and ongoing care — no travel to Danbury required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Jonathan Alexander

NPI records show Dr. Alexander as active with telehealth listed in Danbury, CT. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (203) 797-7379.

Is this your profile?

Verify credentials, update practice details, and manage telehealth.

Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

Related Providers

Cardiovascular Disease Internal Medicine in CT

See all