Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Patrick Holser, O.D.
Optometrist in Grand Rapids, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558328526
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Registry record
Entity type Individual (Type 1)
Name Dr. Patrick Holser
Credential O.D.
Sex Male
Practice address 5258 Plainfield Ave Ne, Suite F, Grand Rapids, MI, 49525
Phone (616) 361-2020
Fax (616) 363-4355
Enumeration date Apr 26, 2006
Last updated in NPPES Sep 25, 2007
Taxonomy & licenses
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 4901004245 (MI) Secondary
152WP0200X Pediatric Optometrist Eye and Vision Services Providers · License 4901004245 (MI) Secondary
152WS0006X Sports Vision Optometrist Eye and Vision Services Providers · License 4901004245 (MI) Secondary
152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 4901004245 (MI) Secondary
152WX0102X Occupational Vision Optometrist Eye and Vision Services Providers · License 4901004245 (MI) Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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.
Frequently asked questions
How do I verify Patrick Holser's NPI record?
Cross-check NPI 1558328526 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1558328526 active?
Yes, as of the latest NPPES snapshot, NPI 1558328526 is active (record last updated 2007-09-25).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-25.