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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).

Patient Reviews

Patient comments (7)

The overall average patient rating of Dr. William Rosner is Average. Dr. Rosner has been reviewed by 8 patients who have provided 7 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 1.9
Promptness 1.4
Courteous Staff 1.7
Accurate Diagnosis 1.9
Bedside Manner 2.3
Spends Time with Me 2.6
Follows Up After Visit 2.1

Specialties & Research

Dr. William Rosner, MD is board certified in Internal Medicine.

  • He has special expertise in 9 areas:
  • Arthritis
  • Cholesterol Management
  • Diabetes
  • Hepatitis
  • Hiatal Hernia
  • High Blood Pressure (Hypertension)
  • Obesity
  • Thyroid Diseases
  • Viral Human Hepatitis

Education & Awards

Dr. Rosner graduated from Universita Degli Studi Di Bologna.


Dr. Rosner has 3 hospital affiliations:

  • Hospital Of St Raphael 
  • Yale-New Haven Hospital 
  • Hospital Of Saint Raphael, New Haven CT 


  • Italian
  • Spanish
  • Hindi

> > > > Dr. William Rosner, MD

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Additional Information
Dr. William Edward Rosner MD is a male Internist, has 35 years of experience and practices in Internal Medicine.
Where does Dr. William E. Rosner practice?
Dr. William Rosner has 3 office locations.
Dr. William Rosner practices Internal Medicine near West Haven, CT.
Additional practice locations include: Wallingford, CT and North Haven, CT.
See West Haven Internists.