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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 Costello:

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Patient Reviews

Patient comments (0)

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

Specialties & Research

Dr. John Costello, MD, OD is board certified in Internal Medicine.

Education & Awards

Dr. Costello graduated from Johns Hopkins University, Baltimore.


Dr. Costello has 6 hospital affiliations:

  • Cayuga Medical Center at Ithaca 
  • Cayuga Medical Center Acute Care 

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Additional Information
Dr. John Edward Costello MD and OD is a male Internist, has 34 years of experience and practices in Internal Medicine.
Where does Dr. John E. Costello practice?
Dr. John Costello has 1 office location.
Dr. John Costello practices Internal Medicine near Ithaca, NY.
See Ithaca Internists.