Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Charles Thomas Clark, D.O.
Pediatrics Physician in Athens, OH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568434397
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Registry record
Entity type Individual (Type 1)
Name Dr. Charles Thomas Clark
Credential D.O.
Sex Male
Practice address 313 Parks Hall, Athens, OH, 45701
Phone (740) 593-2444
Fax (740) 593-0905
Enumeration date Feb 6, 2006
Last updated in NPPES May 31, 2011
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 34--003631 (OH) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0542158 | 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
Is NPI 1568434397 active?
Yes, as of the latest NPPES snapshot, NPI 1568434397 is active (record last updated 2011-05-31).
How do I verify Charles Clark's NPI record?
Cross-check NPI 1568434397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-31.