Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tonja Marie Roland-Ludwig, RPH

Pharmacist in Waterloo, IA · enumerated 2018.

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

National Provider Identifier

1598267775

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Registry record

Entity type Individual (Type 1)

Name Tonja Marie Roland-Ludwig

Credential RPH

Sex Female

Practice address 2104 Kimball Ave, Waterloo, IA, 50702

Phone (319) 234-6673

Enumeration date Mar 5, 2018

Last updated in NPPES Mar 5, 2018

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 18064 (IA) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1598267775 active?

Yes, as of the latest NPPES snapshot, NPI 1598267775 is active (record last updated 2018-03-05).

How do I verify Tonja Roland-Ludwig's NPI record?

Cross-check NPI 1598267775 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-05.