Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William T. Kirn, O.D.
Optometrist in Sanford, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285659417
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Registry record
Entity type Individual (Type 1)
Name William T. Kirn
Credential O.D.
Sex Male
Practice address 272 Cottage St, Sanford, ME, 04073
Phone (207) 324-8888
Enumeration date Jul 12, 2006
Last updated in NPPES Oct 29, 2020
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 260530099 | Medicaid | ME | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does William Kirn practice?
The practice location on file with NPPES is in Sanford, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Kirn?
The National Provider Identifier (NPI) for William Kirn is 1285659417, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Dana Graichen Ophthalmology Physician · Sanford, ME NPI 1831176312 Northeast Retina Associates, PA Ophthalmology Physician · Sanford, ME NPI 1124005590 Associated Eye Care Ophthalmology, PA Ophthalmology Physician · Sanford, ME NPI 1639156011 Robert Rice Ophthalmology Physician · Sanford, ME NPI 1689651069 Associated Eye Care, P.A. Optometrist · Sanford, ME NPI 1144245150 David Lavoie Optometrist · Sanford, ME NPI 1942229398 Sara Gordon Optometrist · Sanford, ME NPI 1902046808 Sasha Bishop Optometrist · Sanford, ME NPI 1174823884
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-29.