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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. John Leavens:

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  1. Qualifications
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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Leavens is Good. Dr. Leavens has been reviewed by 2 patients who have provided 0 comments. The rating is 4 out of 5 stars.

Specialties & Research

Dr. John Leavens, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Leavens graduated from Stony Brook University.


Dr. Leavens has 4 hospital affiliations:

  • Hartford Hospital 
  • Good Samaritan Hospital Medical Center 


  • Polish
  • Spanish
  • Creole

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Additional Information
Dr. John E Leavens MD is a male Emergency Medicine Specialist, has 10 years of experience and practices in Emergency Medicine.
Where does Dr. John E. Leavens practice?
Dr. John Leavens has 2 office locations.
Dr. John Leavens practices Emergency Medicine near Hartford, CT.
Additional practice locations include: Smithtown, NY.
See Hartford Emergency Physicians.