Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark A Kapphahn, OD

Optometrist in Saint Paul, MN · enumerated 2006.

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

National Provider Identifier

1912979006

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Registry record

Entity type Individual (Type 1)

Name Mark A Kapphahn

Credential OD

Sex Male

Practice address 401 Phalen Blvd, Saint Paul, MN, 55130

Phone (651) 254-7500

Enumeration date Feb 3, 2006

Last updated in NPPES Oct 17, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2866 (MN) 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
144842100	Medicaid	MN	-

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

What is the NPI number for Mark Kapphahn?

The National Provider Identifier (NPI) for Mark Kapphahn is 1912979006, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Kapphahn practice?

The practice location on file with NPPES is in Saint Paul, MN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-17.