NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas A. Zimmerman, MD

Family Medicine Physician in Nevada, IA · enumerated 2005.

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

National Provider Identifier

1457333957

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Thomas A. Zimmerman
Credential MD
Sex Male
Practice address 230 S. 6th St., Nevada, IA, 50201
Phone (515) 382-5471
Fax (515) 382-5621
Enumeration date Nov 18, 2005
Last updated in NPPES Aug 27, 2015

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 24084 (IA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0216143 Medicaid IA -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Thomas Zimmerman practice?
The practice location on file with NPPES is in Nevada, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thomas Zimmerman?
The National Provider Identifier (NPI) for Thomas Zimmerman is 1457333957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-27.