Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Paul Larsen, O.D.

Optometrist in Auburn, MA · enumerated 2007 · practices at Auburn Vision Center Inc.

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

National Provider Identifier

1558415745

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Paul Larsen

Credential O.D.

Sex Male

Practice address 59 Auburn St, Auburn, MA, 01501

Phone (508) 832-8820

Fax (508) 721-5145

Enumeration date Jan 23, 2007

Last updated in NPPES Apr 30, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3972 (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
W201695	Other	MA	CIGNA
2202752	Other	MA	UNITED HEALTHCARE
0334880	Medicaid	MA	-
152161	Other	MA	HARVARD PILGRIM
W16214	Other	MA	BLUE CROSS SHIELD
0027653	Other	MA	NEIGHBORHOOD HEALTH
5393688	Other	MA	AETNA
973954	Other	MA	NETWORK HEALTH

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 NPI 1558415745 active?

Yes, as of the latest NPPES snapshot, NPI 1558415745 is active (record last updated 2010-04-30).

How do I verify Michael Larsen's NPI record?

Cross-check NPI 1558415745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Auburn Vision Center Inc Optometrist · Auburn, MA NPI 1346381563

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-30.