Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary-Clare Piontek, RPH

Pharmacist in Green Bay, WI · enumerated 2006.

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

National Provider Identifier

1518903889

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Registry record

Entity type Individual (Type 1)

Name Mary-Clare Piontek

Credential RPH

Sex Female

Practice address 744 South Webster Ave, Green Bay, WI, 54305

Phone (920) 431-5696

Fax (920) 431-5677

Enumeration date Jun 22, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 0009843-040 (WI) Primary

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

Other identifiers

Identifier	Type	State	Issuer
33233700	Medicaid	WI	-

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 1518903889 active?

Yes, as of the latest NPPES snapshot, NPI 1518903889 is active (record last updated 2007-07-08).

How do I verify Mary-Clare Piontek's NPI record?

Cross-check NPI 1518903889 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.