Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jessica Jo Tomasiewicz

Certified Registered Nurse Anesthetist in Berlin, WI · enumerated 2015.

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

National Provider Identifier

1013399047

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Registry record

Entity type Individual (Type 1)

Name Jessica Jo Tomasiewicz

Sex Female

Practice address 225 Memorial Dr, Berlin, WI, 54923

Phone (920) 361-5538

Fax (920) 361-5499

Enumeration date Jun 26, 2015

Last updated in NPPES Mar 2, 2016

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 164565-30 (WI) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Jessica Tomasiewicz?

Jessica Tomasiewicz is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-02.