NPPES file of Aug 9, 2026

Gregory James Nigrelli, O.D.

Optometrist · Manchester, CT

Gregory James Nigrelli, O.D. is an optometrist with a practice address in Manchester, Connecticut, and NPI 1891195830, issued on Aug 27, 2014. Check the license (Connecticut 002923, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891195830
Name
Gregory James Nigrelli
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
002923 CT
Self-reported in NPPES; status is on the state search
Practice location
29 Buckland St, Manchester, CT 06042
Phone
(860) 646-6655
Enumerated
Aug 27, 2014
Record last updated
Nov 27, 2023
Fax
(860) 647-7872
Medicare enrollment
Enrolled (PECOS I20150114000038); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 29 Buckland St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Motto, O.D.Optometrist1861586562
  2. Mark Sturgis, O.D.Optometrist1740226752

Verify Gregory James Nigrelli in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 002923
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Connecticut license search

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52% fewer Medicare Part D claims than the average optometrist in 2024

133 Medicare Part D claims for 55 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Gregory Nigrelli133
  2. Specialty average277

Most prescribed

  1. Moxifloxacin17 claims
  2. Neomycin-Polymyxin-Dexameth16 claims
  3. Tobramycin-Dexamethasone15 claims
  4. Latanoprost13 claims
  5. Lumigan12 claims
  6. Restasis12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $621.27

11 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Nigrelli$621.27
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Myeyedr Optometry OF Connecticut LLCAnsonia, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory James Nigrelli among 675 optometrist records in Connecticut

Gregory James Nigrelli, O.D. is one of 675 optometrist records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 66% of them.

  • NPI issued2014 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2014 · median 2008 among the 447 with a school on file
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 optometrist records list a practice address in Manchester

They are 24 of the 2,184 NPPES records with a practice address in Manchester, and 675 optometrist records in Connecticut.

The 8 optometrist records with the nearest ZIP codes

  1. Haajra Ahmed, ODManchester, CT 060421972164010
  2. Brian Courtemanche, O.D.Manchester, CT 060421386673648
  3. Anthony Gioscia, O.D.Manchester, CT 060421962657288
  4. Taryn Gonthier, ODManchester, CT 060421902540107
  5. Ryan Herron, ODManchester, CT 060421174413926
  6. Gina Lippi, O.D.Manchester, CT 060421811913593
  7. Nicholas Motto, O.D.Manchester, CT 060421861586562
  8. Regan Prudhomme, ODManchester, CT 060421548450588

Common questions

What is Gregory James Nigrelli, O.D.'s NPI number?

Gregory James Nigrelli, O.D.'s National Provider Identifier (NPI) is 1891195830, issued on Aug 27, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Gregory James Nigrelli, O.D. located?

The NPPES record lists a practice address at 29 Buckland St, Manchester, CT, 06042. Phone: (860) 646-6655. Providers update this record themselves, so call before visiting.

How can I verify Gregory James Nigrelli, O.D.'s license?

NPPES lists Connecticut license number 002923, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory James Nigrelli, O.D. prescribe under Medicare Part D?

In 2024, Gregory James Nigrelli, O.D. had 133 Medicare Part D claims for 55 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.