Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Harold Vonk, M.D.
Rheumatology Physician in Logan, UT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023298882
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Registry record
Entity type Individual (Type 1)
Name Harold Vonk
Credential M.D.
Sex Male
Practice address 1350 N 500 E, Logan, UT, 84341
Phone (435) 716-1980
Enumeration date Nov 9, 2007
Last updated in NPPES Jun 24, 2016
Taxonomy & licenses
207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 169555-1205 (UT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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
What is the NPI number for Harold Vonk?
The National Provider Identifier (NPI) for Harold Vonk is 1023298882, a Type 1 (individual) record in the CMS NPPES registry.
Where does Harold Vonk practice?
The practice location on file with NPPES is in Logan, UT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Lawrence Gates Gastroenterology Physician · Logan, UT NPI 1770561425 Corey Walker Rheumatology Physician · Logan, UT NPI 1295707677 Mark Hansen Surgery Physician · Logan, UT NPI 1689646507 Stephen Ferney Gastroenterology Physician · Logan, UT NPI 1043270358 Dirk Davis Gastroenterology Physician · Logan, UT NPI 1134187263 Nordell Brown Pediatrics Physician · Logan, UT NPI 1144234659 Nathan Call Family Medicine Physician · Logan, UT NPI 1104830884 Allan Anderson General Practice Physician · Logan, UT NPI 1710991344
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-24.