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. Gregory Haffner:
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- Currently 3 of 4 stars
The overall average patient rating of Dr. Gregory Haffner is Good.
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Specialties & Research
Dr. Gregory Haffner, MD is board certified in Ophthalmology.
- He has special expertise in 1 area:
- Retinal Disorders
Education & Awards
Dr. Haffner graduated from Royal College Of Surgeons In Ireland, Dublin.
Dr. Haffner has 4 hospital affiliations:
- William W Backus Hospital
- Hospital Of St Raphael
Accepted Insurance Plans
Dr. Haffner accepts these health insurances in at least one office:
- United Healthcare - 21 plans
- Anthem - 17 plans
- Empire Blue Cross Blue Shield - 3 plans
- Community Health Network of Connecticut - 3 plans
- Humana - 6 plans
- Cigna - 7 plans
- The Empire Plan (UHC) - 1 plan
- Aetna - 3 plans
Similar doctors nearby
- Additional Information
- Where does Dr. Gregory M. Haffner practice?
Dr. Gregory Haffner practices Ophthalmology near Hamden, CT.
Additional practice locations include: Westport, CT and Old Greenwich, CT.
See Hamden Ophthalmologists.