Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Derek Messmer, PD
Pharmacist in Lowell, AR · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205430600
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Registry record
Entity type Individual (Type 1)
Name Derek Messmer
Credential PD
Sex Male
Practice address 114 Harrison Ave, Lowell, AR, 72745
Phone (479) 770-0111
Fax (479) 770-0113
Enumeration date Nov 25, 2020
Last updated in NPPES Nov 25, 2020
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
What is the NPI number for Derek Messmer?
The National Provider Identifier (NPI) for Derek Messmer is 1205430600, a Type 1 (individual) record in the CMS NPPES registry.
Where does Derek Messmer practice?
The practice location on file with NPPES is in Lowell, AR. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Tripharma Inc Community/Retail Pharmacy · Lowell, AR NPI 1881670818 Gretchen Brannon Family Nurse Practitioner · Lowell, AR NPI 1376806760 Custom Rx Pharmacy · Lowell, AR NPI 1336569227 Petty Medical Clinic, LLC Primary Care Clinic/Center · Lowell, AR NPI 1255746772 John Lykins Pharmacist · Lowell, AR NPI 1154925543
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-25.