Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John S Holoviak
Social Worker in Urbana, OH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720051360
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Registry record
Entity type Individual (Type 1)
Name John S Holoviak
Sex Male
Practice address 40 Monument Square, Urbana, OH, 43078
Phone (937) 653-5583
Fax (937) 653-4787
Enumeration date Feb 13, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License S0010314 (OH) Primary
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 John Holoviak?
The National Provider Identifier (NPI) for John Holoviak is 1720051360, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Holoviak practice?
The practice location on file with NPPES is in Urbana, OH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.