Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas C Riordan, PHARM D
Pharmacist in Zuni, NM · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003198243
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Registry record
Entity type Individual (Type 1)
Name Dr. Thomas C Riordan
Credential PHARM D
Sex Male
Practice address Zuni Hospital - Rt. 301 N. B. Ave, Zuni, NM, 87327
Phone (505) 782-7518
Enumeration date Sep 14, 2011
Last updated in NPPES Sep 14, 2011
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
Where does Thomas Riordan practice?
The practice location on file with NPPES is in Zuni, NM. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thomas Riordan?
The National Provider Identifier (NPI) for Thomas Riordan is 1003198243, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-14.