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DR. GEORGE DENNIS ADRIAN O.D.
NPI 1659337145
Optometrist in Groton, CT

Active since April 24, 2006PECOS Enrolled
1041 POQUONNOCK RD, GROTON, CT 06340(860) 445-1000(860) 445-3347 Get Directions Write a Review

NPPES record last updated: December 11, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. George Dennis Adrian O.d. NPPES

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

DR. GEORGE DENNIS ADRIAN O.D. (NPI 1659337145) is an individual optometrist in Groton, Connecticut, licensed in Connecticut (CT1035) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659337145
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. GEORGE DENNIS ADRIANCredential: O.D.
Location Address1041 POQUONNOCK RDGroton, CT 06340-4211
Mailing Address1041 Poquonnock RdGroton, CT 06340-4211 · (860) 445-1000 · Fax (860) 445-3347
Phone(860) 445-1000
Fax(860) 445-3347
Sole ProprietorNo
Enumeration DateApril 24, 2006
Last NPPES UpdateDecember 11, 2014
✔ NPI 1659337145 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 · CT1035
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.
1041 POQUONNOCK RD, Groton, CT 06340
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Other Identifiers 3

Other06-1606726CT · Tax Id
Medicare UPINT-22032CT
Medicare ID-Type UnspecifiedC02790CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. George Dennis Adrian O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show George Adrian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kallinen Eye Care, LLC
Same address
Optometrist
1041 POQUONNOCK RD
Groton, CT 06340
  • Reassigned Medicare billing, Connecticut enrollment
  • 4 clinicians in this Medicare group
NPI 1114582129 (860) 445-1000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06340 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA FRETTO OD
Optometrist
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 445-1000
KALLINEN EYE CARE, LLC
Optometrist
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 445-1000
DR. MARC BRUCE KALLINEN O.D.
Optometrist
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 445-1000
SOUTHEAST CONNECTICUT EYE CARE, LLC
Ophthalmology
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 373-4148
PAMELA NARDELLA
Optometrist
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 445-1000
COASTAL COUNSELING LLC
Community/Behavioral Health
1041 POQUONNOCK RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 405-0005

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 George Adrian's NPI number?

The NPI number for George Adrian is 1659337145. It was assigned to this individual provider in the NPPES registry on April 24, 2006.

Where is George Adrian located?

George Adrian practices at 1041 Poquonnock Rd, Groton, CT 06340. The listed phone number is (860) 445-1000.

What is George Adrian's specialty?

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

Is George Adrian enrolled in Medicare?

Yes. George Adrian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for George Adrian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Adrian reassigns Medicare benefits to Kallinen Eye Care, LLC (Groton, 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 George Adrian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for George Adrian was last updated on December 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.