Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ronald L Detwiler, O.D.
Optometrist in East Liverpool, OH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609956655
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Registry record
Entity type Individual (Type 1)
Name Dr. Ronald L Detwiler
Credential O.D.
Sex Male
Practice address 15655 State Route 170, Ste. C, East Liverpool, OH, 43920
Phone (330) 385-3895
Fax (330) 385-5772
Enumeration date Oct 16, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0324741 | 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 1609956655 active?
Yes, as of the latest NPPES snapshot, NPI 1609956655 is active (record last updated 2007-07-09).
How do I verify Ronald Detwiler's NPI record?
Cross-check NPI 1609956655 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.