Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Steven Guenthner, PHARMD
Pharmacist in Island City, OR · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366994253
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Registry record
Entity type Individual (Type 1)
Name Steven Guenthner
Credential PHARMD
Sex Male
Practice address 11619 Island Ave, Island City, OR, 97850
Phone (541) 963-5460
Enumeration date Oct 26, 2016
Last updated in NPPES Oct 26, 2016
Taxonomy & licenses
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD 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
Is NPI 1366994253 active?
Yes, as of the latest NPPES snapshot, NPI 1366994253 is active (record last updated 2016-10-26).
How do I verify Steven Guenthner's NPI record?
Cross-check NPI 1366994253 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 → Walmart Inc. Community/Retail Pharmacy · Island City, OR NPI 1134146277 Wal-Mart Stores, Inc. Eyewear Supplier · La Grande, OR NPI 1720169261 Thuyngoc Hoang Pharmacist · Island City, OR NPI 1295945822 Greta Book Pharmacist · Island City, OR NPI 1598164501 Arsany Hanna Pharmacist · Island City, OR NPI 1063964328 Crystal Spang Pharmacist · La Grande, OR NPI 1396319414 Ihab Wagdi Amin Tadros Pharmacist · Island City, OR NPI 1164276689 Michko Namper Optician · Island City, OR NPI 1861350332
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-26.