NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Melissa Storm Gerszewski, RPH

Pharmacist in Marshfield, WI · enumerated 2024.

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

National Provider Identifier

1831922079

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Registry record

Entity type Individual (Type 1)
Name Melissa Storm Gerszewski
Credential RPH
Sex Female
Practice address Marshfield, WI, 54449
Enumeration date Aug 22, 2024
Last updated in NPPES Aug 22, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 13125-40 (WI) 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 1831922079 active?
Yes, as of the latest NPPES snapshot, NPI 1831922079 is active (record last updated 2024-08-22).
How do I verify Melissa Gerszewski's NPI record?
Cross-check NPI 1831922079 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 2024-08-22.