Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Charles William Johnston, DC
Chiropractor in Greenville, OH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528051075
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Registry record
Entity type Individual (Type 1)
Name Dr. Charles William Johnston
Credential DC
Sex Male
Practice address 109 Rhoades Ave, Greenville, OH, 45331
Phone (937) 548-3610
Fax (937) 548-3615
Enumeration date Aug 30, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0299234 | Medicaid | OH | - |
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 Charles Johnston practice?
The practice location on file with NPPES is in Greenville, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Johnston?
The National Provider Identifier (NPI) for Charles Johnston is 1528051075, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.