Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassandra Loretta Silveyra, NP

Family Nurse Practitioner in Shawano, WI · enumerated 2017.

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

National Provider Identifier

1447789375

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Registry record

Entity type Individual (Type 1)

Name Cassandra Loretta Silveyra

Credential NP

Sex Female

Practice address 1300 E Green Bay St, Shawano, WI, 54166

Phone (920) 496-4700

Enumeration date Jun 5, 2017

Last updated in NPPES Jul 8, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 170715-30 (WI) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18497-33 (WI) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
100419589	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

Where does Cassandra Silveyra practice?

The practice location on file with NPPES is in Shawano, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Cassandra Silveyra?

The National Provider Identifier (NPI) for Cassandra Silveyra is 1447789375, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Vickiemarie Cloutier Family Medicine Physician · Shawano, WI NPI 1568467850 Yu Chin Fang Family Medicine Physician · Shawano, WI NPI 1780616896 St Vincent Hospital-Hospital Sisters-Third Order of St. Francis Durable Medical Equipment & Medical Supplies · Shawano, WI NPI 1528564507 Heidi Bruckert Nurse Practitioner · Shawano, WI NPI 1831681402 St Vincent Hospital-Hospital Sisters-Third Order of St Francis Mental Health Clinic/Center (Including Community Mental Health Center) · Shawano, WI NPI 1063075018

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