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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. Louis Heisler:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Louis Heisler, Internist is Excellent. Dr. Heisler has been reviewed by 6 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 4.3
Courteous Staff 3.9
Accurate Diagnosis 3.7
Bedside Manner 3.9
Spends Time with Me 4.3
Follows Up After Visit 3.3

Specialties & Research

Dr. Louis Heisler, MD is board certified in Internal Medicine.

  • He has special expertise in 1 area:
  • Clinical Pharmacology

Education & Awards

Dr. Heisler graduated from Virginia Commonwealth University, Richmond. He has 1 awards.

Patients' Choice Award (2011 - 2013)


Dr. Heisler has 6 hospital affiliations:

  • North Shore/Long Island Jewish Hospital System - Franklin Hospital Med Ctr 
  • University Hospital of Brooklyn at Long Island Hospital 


  • Spanish
  • Italian
  • Greek

> > > > Dr. Louis Heisler, MD

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Additional Information
Dr. Louis Ralph Heisler MD is a male Internist, has 38 years of experience and practices in Internal Medicine.
Where does Dr. Louis R. Heisler practice?
Dr. Louis Heisler has 1 office location.
Dr. Louis Heisler practices Internal Medicine near New Hyde Park, NY.
See New Hyde Park Internists.