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Dr. Tom J Nienhaus, PHARMD

Pharmacist in Festus, MO · enumerated 2011 · practices at Walgreen Co.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255612420

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Registry record

Entity type Individual (Type 1)
Name Dr. Tom J Nienhaus
Credential PHARMD
Sex Male
Practice address 519 S Truman Blvd, Festus, MO, 63028
Phone (636) 937-3641
Fax (636) 937-6124
Enumeration date Sep 1, 2011
Last updated in NPPES Sep 1, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 2010025215 (MO) Primary
183500000X Pharmacist Pharmacy Service Providers · License 051.294405 (IL) Secondary
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.

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Frequently asked questions

What is the NPI number for Tom Nienhaus?
The National Provider Identifier (NPI) for Tom Nienhaus is 1255612420, a Type 1 (individual) record in the CMS NPPES registry.
Where does Tom Nienhaus practice?
The practice location on file with NPPES is in Festus, MO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-01.