Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Matthew Lehmann, OD

Optometrist in S Lake Tahoe, CA · enumerated 2006.

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

National Provider Identifier

1619936481

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Registry record

Entity type Individual (Type 1)

Name Mark Matthew Lehmann

Credential OD

Sex Male

Practice address 2074 Lake Tahoe Blvd Ste 2, S Lake Tahoe, CA, 96150

Phone (530) 541-2030

Fax (536) 541-3947

Enumeration date Mar 21, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 10225T (CA) 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
3111526	Medicaid	CA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1619936481 active?

Yes, as of the latest NPPES snapshot, NPI 1619936481 is active (record last updated 2023-03-07).

How do I verify Mark Lehmann's NPI record?

Cross-check NPI 1619936481 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.