CASSANDRA LORETTA SILVEYRA NP
NPI 1447789375
Nurse Practitioner - Family in Shawano, WI

Q: What is Cassandra Silveyra's NPI number?

The NPI number for Cassandra Silveyra is 1447789375. It was assigned to this individual provider in the NPPES registry on June 5, 2017.

Q: What is Cassandra Silveyra's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since June 05, 2017PECOS EnrolledAccepts Medicare Assignment

1300 E GREEN BAY ST, SHAWANO, WI 54166(920) 496-4700 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 8, 2026, Jul 21, 2022, Jun 5, 2017 (3 updates tracked since 2017).

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About Cassandra Loretta Silveyra Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CASSANDRA LORETTA SILVEYRA NP (NPI 1447789375) is an individual family provider in Shawano, Wisconsin, licensed in Wisconsin (18497-33) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS, is affiliated with St Vincent Hospital, and is a graduate of Other (2026).

NPPES Registry Identity

NPI1447789375

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameCASSANDRA LORETTA SILVEYRACredential: NP

Location Address1300 E GREEN BAY STShawano, WI 54166-2210

Mailing AddressPo Box 19070Green Bay, WI 54307-9070 · (920) 496-4700

Phone(920) 496-4700

Sole ProprietorNo

Medical School CMSOtherGraduated 2026

Enumeration DateJune 5, 2017

Last NPPES UpdateJuly 8, 20263 updates tracked since enumeration

NPPES CertifiedJuly 8, 2026

✔ NPI 1447789375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in WI · 18497-33

Also ListedRegistered NurseTaxonomy 163W00000X · License 170715-30 (WI)

1300 E GREEN BAY ST, Shawano, WI 54166

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Other Identifiers 1

Medicaid100419589WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Network Health, Security Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Cassandra Loretta Silveyra Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8921571696

PECOS Enrollment IDI20260624002022

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Cassandra Silveyra reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Vincent Hospital-Hospital Sisters-Third Order Of St Francis

5.0 mi

Otolaryngology

100 COUNTY ROAD B
Shawano, WI 54166

Reassigned Medicare billing, Wisconsin enrollment
742 clinicians in this Medicare group

NPI 1194314013 (920) 496-4700

Prevea Clinic, Inc.

32 mi

Internal Medicine

2710 EXECUTIVE DR
Green Bay, WI 54304

Reassigned Medicare billing, Wisconsin enrollment
190 clinicians in this Medicare group

NPI 1306869276 (920) 496-4700

St. Nicholas Hospital-Sisters Of The Third Order Of St Francis

81 mi

Internal Medicine

3113 SAEMANN AVE
Sheboygan, WI 53081

Reassigned Medicare billing, Wisconsin enrollment
673 clinicians in this Medicare group

NPI 1275799413 (920) 496-4700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Vincent Hospital

Acute Care Hospitals · Green Bay, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520075

Location835 S Van Buren StGreen Bay, WI 54301 · Brown County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54166 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ST VINCENT HOSPITAL-HOSPITAL SISTERS-THIRD ORDER OF ST FRANCIS

Clinic/Center (Mental Health (Including Community Mental Health Center))