Gregory Haffner, MD - Medicare Ophthalmology in Hamden, CT

Gregory Haffner, MD is a medicare enrolled "Ophthalmology" physician in Hamden, Connecticut. He graduated from medical school in 2001 and has 23 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Refocus Eye Health Of Central Connecticut Pc and his current practice location is 2200 Whitney Ave, Suite 300, Hamden, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 288-2020.

Gregory Haffner is licensed to practice in Connecticut (license number 043419) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1407886450.

Contact Information

Gregory Haffner, MD
2200 Whitney Ave, Suite 300,
Hamden, CT 06518-3691
(203) 288-2020
(203) 288-2470

Map and Direction




Physician's Profile

Full NameGregory Haffner
GenderMale
SpecialityOphthalmology
Experience23 Years
Location2200 Whitney Ave, Hamden, Connecticut
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gregory Haffner graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1407886450
  • Provider Enumeration Date: 07/04/2006
  • Last Update Date: 06/14/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 1254368327
  • Enrollment ID: I20050720000545

Medical Identifiers

Medical identifiers for Gregory Haffner such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407886450NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 043419 (Connecticut)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Refocus Eye Health Of Central Connecticut Pc559717683442

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Gregory Haffner allows following entities to bill medicare on his behalf.
Entity NameNew England Retina Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497876502
PECOS PAC ID: 5991732083
Enrollment ID: O20050720000594
Entity NameRefocus Eye Health Of Central Connecticut Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548874936
PECOS PAC ID: 5597176834
Enrollment ID: O20201118000388

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Gregory Haffner is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Gregory Haffner, MD
2200 Whitney Ave, Suite 300,
Hamden, CT 06518-3691

Ph: (203) 288-2020
Gregory Haffner, MD
2200 Whitney Ave, Suite 300,
Hamden, CT 06518-3691

Ph: (203) 288-2020

Reviews and Comments


Ophthalmology Doctors in Hamden, CT

Jeffrey D Gold, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 2440 Whitney Ave, Hamden, CT 06518
Phone: 203-281-5745    Fax: 203-281-6442
Alice Kim, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2880 Old Dixwell Ave, Eye Center Of Southern Connecticut, Hamden, CT 06518
Phone: 203-248-6365    Fax: 203-281-2742
Andrew P Swan, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2880 Old Dixwell Ave, Hamden, CT 06518
Phone: 203-248-6365    Fax: 203-281-2742
Richard L. Petrelli, M.D.
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 3018 Dixwell Ave, 2nd Floor, Hamden, CT 06518
Phone: 203-281-5800    
Andrew J Fezza, MD
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 2880 Old Dixwell Ave, Hamden, CT 06518
Phone: 203-248-6365    Fax: 203-281-2742
John Siano,
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 2200 Whitney Ave Ste 300, Hamden, CT 06518
Phone: 203-288-2020    Fax: 203-288-2470
Dr. Matthew Dombrow, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2440 Whitney Ave, Suite 103, Hamden, CT 06518
Phone: 203-248-8080    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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