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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 (3)

The overall average patient rating of Dr. David Deregis is Below Average. Dr. Deregis has been reviewed by 8 patients who have provided 3 comments. The rating is 2 out of 5 stars.

Patient Ratings
Ease of Appointment 2.7
Promptness 2.3
Courteous Staff 2.3
Accurate Diagnosis 1.8
Bedside Manner 2.1
Spends Time with Me 2.7
Follows Up After Visit 2.0

Specialties & Research

Dr. David Deregis, MD is board certified in Internal Medicine.

Education & Awards

Dr. Deregis graduated from St. George's University, Bay Shore.


Dr. Deregis has 5 hospital affiliations:

  • Corning Hospital 
  • Owensboro Mercy Health System 

> > > > Dr. David Deregis, MD

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Additional Information
Dr. David L Deregis MD is a male Internist, has 14 years of experience and practices in Internal Medicine.
Where does Dr. David L. Deregis practice?
Dr. David Deregis has 4 office locations.
Dr. David Deregis practices Internal Medicine near Ithaca, NY.
Additional practice locations include: Sayre, PA and Springville, NY.
See Ithaca Internists.