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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).

Learn more about Dr. William Gaasch:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. William Gaasch is Excellent. Dr. Gaasch has been reviewed by 2 patients who have provided 1 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 4.3

Specialties & Research

Dr. William Gaasch, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 25 areas:
  • Acute Coronary Syndrome (ACS)
  • Aortic Valve Insufficiency
  • Aortic Valve Stenosis
  • Atrial Fibrillation
  • Bacterial Endocarditis
  • Cardiomegaly
  • Chest Pain (Angina)
  • Coronary Artery Bypass (Heart Bypass)
  • Coronary Disease
  • Heart Block
  • Heart Catheterization
  • Heart Disease (Myocardial Ischemia)
  • Heart Diseases
  • Heart Failure
  • Heart Valve Diseases
  • Heart Valve Prosthesis Implantation
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Hypertrophic Cardiomyopathy
  • Mitral Valve Insufficiency
  • > Show all expertise

Education & Awards

Dr. Gaasch graduated from University of Michigan Medical School, Ann Arbor. He has 9 awards.

One of America's Leading Experts on:
Aortic Valve Insufficiency
Aortic Valve Stenosis
Coronary Disease
Heart Catheterization
Heart Diseases
Heart Valve Diseases
Mitral Valve Insufficiency
Mitral Valve Stenosis


Dr. Gaasch has 3 hospital affiliations:

  • Lahey Clinic 
  • Baystate Franklin Medical Center 
  • Lahey Clinic Hospital, Inc 

> > > > Dr. William Gaasch, MD

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Additional Information
Dr. William Henry Gaasch MD is a male Internist, has 48 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. William H. Gaasch practice?
Dr. William Gaasch has 1 office location.
Dr. William Gaasch practices Internal Medicine and Cardiovascular Disease near Burlington, MA.
See Burlington Internists and Burlington Cardiologists.