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12 years of experience
Accepting new patients
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. Alison Leff is Good. Dr. Leff has been reviewed by 7 patients who have provided 3 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 5.0
Courteous Staff 4.6
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 4.6

Specialties & Research

Dr. Alison Leff, DO is board certified in Internal Medicine.

Education & Awards

Dr. Leff graduated from Philadelphia College of Osteopathic Medicine. She has 5 awards.

Nominee, Louis Dinon Teaching Award
Patients' Choice Award (2015)
Bridges to Excellence Recognition
Bridges to Excellence Medical Home Recognition (2014 - 2017)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2014 - 2017)
On-Time Doctor Award (2015)


Dr. Leff has 3 hospital affiliations:

  • Griffin Hospital 
  • Norwalk Hospital Association 
  • Norwalk Hospital 


  • Spanish
  • English

> > > > Dr. Alison Leff, DO

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Additional Information
Dr. Alison Joy Leff DO is a female Internist, has 12 years of experience and practices in Internal Medicine.
Where does Dr. Alison J. Leff practice?
Dr. Alison Leff has 1 office location.
Dr. Alison Leff practices Internal Medicine near Norwalk, CT.
See Norwalk Internists.