Browse Health
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).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Andrew Keller, Cardiologist is Good. Dr. Keller has been reviewed by 10 patients who have provided 3 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 2.7
Courteous Staff 3.2
Accurate Diagnosis 3.4
Bedside Manner 3.2
Spends Time with Me 3.4
Follows Up After Visit 3.4

Specialties & Research

Dr. Andrew Keller, MD is board certified in Cardiovascular Disease.

  • He has special expertise in 5 areas:
  • Acute Coronary Syndrome (ACS)
  • Echocardiography
  • Heart Block
  • High Blood Pressure (Hypertension)
  • Unstable Angina

Education & Awards

Dr. Keller graduated from The Ohio State University , Columbus. He has 1 awards.

Castle Connolly Top Doctors: New York Metro Area™ (2007 - 2008, 2010 - 2014)


Dr. Keller has 9 hospital affiliations:

  • Danbury Hospital 
  • New York Presbyterian Hospital / Columbia 


  • Portuguese
  • Spanish

> > > > Dr. Andrew Keller, MD

Similar doctors nearby

Dr. William Pearson

Internal Medicine
30 years experience
Southbury, CT

Dr. Mark Rosenberg

Internal Medicine
30 years experience
Woodbury, CT

Dr. Richard Berning

23 years experience
Sandy Hook, CT

Dr. Suphichaya Muangman

Internal Medicine
16 years experience
Middlebury, CT

Dr. George Antonopoulos

Internal Medicine
14 years experience

Dr. Michael Malinics

Cardiovascular Disease
23 years experience
Middlebury, CT
Search All Similar Doctors
Additional Information
Dr. Andrew M Keller MD is a male Internist, has 32 years of experience and practices in Cardiovascular Disease.
Where does Dr. Andrew M. Keller practice?
Dr. Andrew Keller has 5 office locations.
Dr. Andrew Keller practices Cardiovascular Disease near Southbury, CT.
Additional practice locations include: Danbury, CT and Ridgefield, CT.
See Southbury Cardiologists.