NPPES file of Aug 9, 2026

Linda Squillace Gilligan, OD

Optometrist · Petersborough, NH

Linda Squillace Gilligan, OD is an optometrist with a practice address in Petersborough, New Hampshire, and NPI 1649264805, issued on Sep 2, 2005. Check the license (New Hampshire 0641, as entered in NPPES) with the New Hampshire 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
1649264805
Name
Linda Squillace Gilligan
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
0641 NH
Self-reported in NPPES; status is on the state search
Practice location
Our Town Eye Care, Petersborough, NH 03458
Phone
(603) 924-9591
Enumerated
Sep 2, 2005
Record last updated
Sep 8, 2025
Fax
(603) 924-9593
Medicare enrollment
Enrolled (PECOS I20051227000192); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 1996
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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Verify Linda Squillace Gilligan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 0641
    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 New Hampshire license search

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40% fewer Medicare Part D claims than the average optometrist in 2024

166 Medicare Part D claims for 51 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Linda Gilligan166
  2. Specialty average277

Most prescribed

  1. Latanoprost87 claims
  2. Lumigan16 claims
  3. Neomycin-Polymyxin-Dexameth11 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: $20.05

1 payment: 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. Linda Gilligan$20.05
  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. Robert Marc TyszkoPeterborough, NH

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

Linda Squillace Gilligan among 293 optometrist records in New Hampshire

Linda Squillace Gilligan, OD is one of 293 optometrist records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1996 · median 2007 among the 202 with a school on file
  • Record last updated2025 · 67% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in New Hampshire

There are 293 optometrist records in New Hampshire.

The 8 optometrist records with the nearest ZIP codes

  1. Michael Gordon, ODPeterborough, NH 034581265433429
  2. John Minteer, O.D.Peterborough, NH 034581295848455
  3. Robert TyszkoPeterborough, NH 034581467486852
  4. Marilynn Acker Ezell, ODJaffrey, NH 034521194799379
  5. Benjamin ChoiniereJaffrey, NH 034521386407898
  6. Joseph Alger, ODKeene, NH 034311457467367
  7. Janet Aug, O.D.Keene, NH 034311518914001
  8. Judson Dexter, ODKeene, NH 034311063484749

Common questions

What is Linda Squillace Gilligan, OD's NPI number?

Linda Squillace Gilligan, OD's National Provider Identifier (NPI) is 1649264805, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Linda Squillace Gilligan, OD located?

The NPPES record lists a practice address at Our Town Eye Care, Petersborough, NH, 03458. Phone: (603) 924-9591. Providers update this record themselves, so call before visiting.

How can I verify Linda Squillace Gilligan, OD's license?

NPPES lists New Hampshire license number 0641, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Linda Squillace Gilligan, OD prescribe under Medicare Part D?

In 2024, Linda Squillace Gilligan, OD had 166 Medicare Part D claims for 51 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.