Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Mastbergen
Registered Nurse in Hudsonville, MI · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518323807
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Registry record
Entity type Individual (Type 1)
Name Karen Mastbergen
Sex Female
Practice address 6810 Rollingview Dr, Hudsonville, MI, 49426
Phone (616) 350-2677
Enumeration date Jan 3, 2016
Last updated in NPPES Jan 3, 2016
Taxonomy & licenses
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
Where does Karen Mastbergen practice?
The practice location on file with NPPES is in Hudsonville, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Mastbergen?
The National Provider Identifier (NPI) for Karen Mastbergen is 1518323807, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-03.