Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lee Edward Guertin III, O.D.

Optometrist in Somerset, MA · enumerated 2005 · practices at Riverside Eye Care PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326042995

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Registry record

Entity type Individual (Type 1)

Name Dr. Lee Edward Guertin III

Credential O.D.

Sex Male

Practice address 255 County St, Somerset, MA, 02726

Phone (508) 676-8167

Fax (508) 676-1434

Enumeration date Jun 10, 2005

Last updated in NPPES Dec 17, 2021

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License MG0358033M (TPA) (MA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 4074 (MA) Primary

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
110024738A	Medicaid	MA	-
W16263	Other	MA	BCBS MASSACHUSETTS
152748	Other	MA	HARVARD PILGRIM
22-00849	Other	MA	UNITED HEALTH CARE
454708	Other	MA	TUFTS HEALTH PLAN
411983	Other	RI	BCBS RI BLUE CHIP
0702102	Medicaid	MA	-
23640-7	Other	RI	BCBS RHODE ISLAND

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Lee Guertin?

Lee Guertin is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Riverside Eye Care PC Optometrist · Somerset, MA NPI 1992281091

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-17.