Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Douglas Lassiter, D.PH.
Pharmacist in Guthrie, OK · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003110586
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name John Douglas Lassiter
Credential D.PH.
Sex Male
Practice address 102 W Noble Ave, Guthrie, OK, 73044
Phone (405) 282-7800
Fax (405) 282-2244
Enumeration date Dec 27, 2010
Last updated in NPPES Dec 27, 2010
Taxonomy & licenses
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
How do I verify John Lassiter's NPI record?
Cross-check NPI 1003110586 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1003110586 active?
Yes, as of the latest NPPES snapshot, NPI 1003110586 is active (record last updated 2010-12-27).
Other providers at this practice address
Browse all → Cory'S Pharmacy Community/Retail Pharmacy · Guthrie, OK NPI 1477752004 Guthrie Pharmacy Inc Community/Retail Pharmacy · Guthrie, OK NPI 1780988907 Rodney Helms Pharmacist · Guthrie, OK NPI 1952643058 Simplified Rx Inc Community/Retail Pharmacy · Guthrie, OK NPI 1891278750 Kyle Nettleingham Pharmacist · Guthrie, OK NPI 1669940573 Simplified Rx Specialty Pharmacy · Guthrie, OK NPI 1326860438
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-27.