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OEC WATERBURY LLC
NPI 1477097285
Optometrist in Waterbury, CT

Active since December 13, 2016
3528 E MAIN ST, WATERBURY, CT 06705(203) 377-3934 Get Directions Write a Review

NPPES record last updated: December 13, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Oec Waterbury Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OEC WATERBURY LLC (NPI 1477097285) is a healthcare organization registered as an optometrist in Waterbury, Connecticut and active in the NPI registry since December 2016. The organization lists Karen Bonnanzio, Member, as its authorized official.

NPPES Registry Identity

NPI1477097285
Entity TypeOrganization
Primary Taxonomy152W00000X
Legal Business NameOEC WATERBURY LLC
Location Address3528 E MAIN STWaterbury, CT 06705-3873
Mailing Address7365 Main StStratford, CT 06614-1300 · (203) 377-3937 · Fax (888) 741-0620
Phone(203) 377-3934
Organization SubpartYesParent: Oronoque Eye Care Inc
Authorized OfficialKaren BonnanzioMember · (203) 377-3937
Enumeration DateDecember 13, 2016
✔ NPI 1477097285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CT · 002346
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
3528 E MAIN ST, Waterbury, CT 06705
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Other Identifiers 2

Medicare UPINV08699CT
Medicaid004160983CT

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Oec Waterbury Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Oec Waterbury LLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Tiffany Deleon, OD
Optometry
NPI 1760969133
58 MAPLE ST
Naugatuck, CT 06770
(203) 729-2226
✔ PECOS✔ Accepts Medicare5.6 mi
Vicky Yiannoulis
Optometry
NPI 1225534936
555 WILLARD AVE
Newington, CT 06111
(860) 666-6951
✔ PECOS✔ Accepts Medicare16 mi
Karen Bonnanzio, O.D.
Optometry
NPI 1508955873
7365 MAIN ST
Stratford, CT 06614
(203) 377-3937
✔ PECOS✔ Accepts Medicare21 mi
Kurt Tichy, O.D.
Optometry
NPI 1750338414
7365 MAIN ST
Stratford, CT 06614
(203) 377-3937
✔ PECOS✔ Accepts Medicare21 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Oec Waterbury LLC's NPI number?

The NPI number for Oec Waterbury LLC is 1477097285. It was assigned to this organization in the NPPES registry on December 13, 2016.

Where is Oec Waterbury LLC located?

Oec Waterbury LLC is located at 3528 E Main St, Waterbury, CT 06705. The listed phone number is (203) 377-3934.

What is Oec Waterbury LLC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Oec Waterbury LLC enrolled in Medicare?

Yes. Oec Waterbury LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oec Waterbury LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Optometry, reassign their Medicare billing to Oec Waterbury LLC. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Oec Waterbury LLC accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 1 other insurer list Oec Waterbury LLC 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 Oec Waterbury LLC was last updated on December 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.