Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Derek J Harmelink, PA
Physician Assistant in Plymouth, WI · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548542897
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Registry record
Entity type Individual (Type 1)
Name Derek J Harmelink
Credential PA
Sex Male
Practice address 2600 Kiley Way, Plymouth, WI, 53073
Phone (920) 449-7000
Enumeration date Sep 13, 2011
Last updated in NPPES Oct 3, 2024
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2864 (WI) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100017705 | Medicaid | WI | - |
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 Derek Harmelink practice?
The practice location on file with NPPES is in Plymouth, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Derek Harmelink?
The National Provider Identifier (NPI) for Derek Harmelink is 1548542897, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Mauricio Palencia Emergency Medicine Physician · Plymouth, WI NPI 1770558264 David Osterwind Physician Assistant · Plymouth, WI NPI 1518924497 Sarah Jabs Physician Assistant · Plymouth, WI NPI 1659329423 Betty Van Leuven Emergency Medicine Physician · Plymouth, WI NPI 1598791881 Aurora Health Care Ventures, Inc. Eyewear Supplier · Plymouth, WI NPI 1245251016 Andrea Gavin Family Medicine Physician · Plymouth, WI NPI 1669587655 Dharmesh Murthy Family Medicine Physician · Plymouth, WI NPI 1942317375 Lynnett Wilderman Physician Assistant · Plymouth, WI NPI 1861509721
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-03.