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Michael K Harkins & Mark A Karsten Ptr

Optometrist in Alpena, MI · enumerated 2007 · authorized official Michael Harkins, Partner.

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

National Provider Identifier

1679611941

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Registry record

Entity type Organization (Type 2)
Legal business name Michael K Harkins & Mark A Karsten Ptr
Practice address 224 E Chisholm St Ste A, Alpena, MI, 49707
Phone (989) 354-5890
Fax (989) 356-6213
Enumeration date Feb 1, 2007
Last updated in NPPES Apr 27, 2018

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License MH002454 (MI) Primary
152W00000X Optometrist Eye and Vision Services Providers · License MK002883 (MI) Secondary

Authorized official

Name Michael Harkins
Title Partner
Phone (989) 354-5890

Other identifiers

Identifier Type State Issuer
MH002454 Other MI BLUE CROSS
MK002883 Other MI BLUE CROSS

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-04-27. Verify at npiregistry.cms.hhs.gov.
Where is Michael K Harkins & Mark A Karsten Ptr located?
The practice location on file with NPPES is in Alpena, MI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-27.