GREGORY HAFFNER M.D.
NPI 1407886450
Ophthalmology in Hamden, CT
About Gregory Haffner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY HAFFNER M.D. (NPI 1407886450) is an individual ophthalmology provider in Hamden, Connecticut, licensed in Connecticut (043419) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gregory Haffner M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Gregory Haffner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Waterbury, CT 06708
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Refocus Eye Health Of Central Connecticut PC
- 37 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 16
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06518 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HAMDEN, CT 06518
HAMDEN, CT 06518
HAMDEN, CT 06518
HAMDEN, CT 06518
HAMDEN, CT 06518
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Haffner's NPI number?
The NPI number for Gregory Haffner is 1407886450. It was assigned to this individual provider in the NPPES registry on July 4, 2006.
Where is Gregory Haffner located?
Gregory Haffner practices at 2200 Whitney Ave Suite 300, Hamden, CT 06518. The listed phone number is (203) 288-2020.
What is Gregory Haffner's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Gregory Haffner enrolled in Medicare?
Yes. Gregory Haffner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Gregory Haffner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Haffner reassigns Medicare benefits to Refocus Eye Health Of Central Connecticut, P.C. (Waterbury, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Haffner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Haffner accept?
Health plans from Anthem Blue Cross and Blue Shield list Gregory Haffner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gregory Haffner was last updated on June 14, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Gregory Haffner, M.D. · NPI 1407886450
Ophthalmology physician in Hamden, Connecticut. Individual provider, active in the CMS NPPES registry since July 4, 2006.
## Identity
- **NPI:** 1407886450 (Entity type: Individual)
- **Enumerated:** July 4, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 043419 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 2200 WHITNEY AVE, SUITE 300, Hamden, CT 06518-3691
- **Phone:** (203) 288-2020 · **Fax:** (203) 288-2470
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Refocus Eye Health Of Central Connecticut, P.C. (NPI 1548874936, Waterbury, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** June 14, 2011
- **Other identifiers:** Medicare ID-Type Unspecified 180001028; Medicare UPIN I33558
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Source: [NPI Profile](https://npiprofile.com/npi/1407886450) · Data from the CMS NPPES public registry.