1. Home
  2. Directory
  3. Illinois
  4. Peru
  5. Social Worker
  6. NPI Profile

KATHERINE ELIZABETH SIEMBAB
NPI 1598485377
Social Worker - Clinical in Peru, IL

Active since August 31, 2022PECOS Enrolled

NPPES record last updated: August 31, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Katherine Elizabeth Siembab NPPES

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

KATHERINE ELIZABETH SIEMBAB (NPI 1598485377) is an individual clinical provider in Peru, Illinois, licensed in Illinois (149024180) and active in the NPI registry since August 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598485377
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameKATHERINE ELIZABETH SIEMBAB
Location Address926 GRANT STPeru, IL 61354-2656
Mailing Address926 Grant StPeru, IL 61354-2656 · (815) 883-1383
Phone(815) 883-1383
Sole ProprietorNo
Enumeration DateAugust 31, 2022
NPPES CertifiedAugust 31, 2022
✔ NPI 1598485377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IL · 149024180
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
926 GRANT ST, Peru, IL 61354
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Quartz.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Elizabeth Siembab is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Katherine Siembab reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Life Solutions: Integrative Healing & Well Being LLC
45 mi
Mental Health
1500 E LINCOLN HWY STE 1
Dekalb, IL 60115
  • Reassigned Medicare billing, Illinois enrollment
  • 6 clinicians in this Medicare group
NPI 1720462799 (779) 777-7933

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61354 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
$0.00 typical visit price
range $54.80 – $168.44
Typical copayment $0.00 (range $13.70 – $42.11)
Most-billed visit code NA
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Siembab's NPI number?

The NPI number for Katherine Siembab is 1598485377. It was assigned to this individual provider in the NPPES registry on August 31, 2022.

Where is Katherine Siembab located?

Katherine Siembab practices at 926 Grant St, Peru, IL 61354. The listed phone number is (815) 883-1383.

What is Katherine Siembab's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Katherine Siembab enrolled in Medicare?

Yes. Katherine Siembab is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katherine Siembab's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Siembab reassigns Medicare benefits to Life Solutions: Integrative Healing & Well Being LLC (Dekalb, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Siembab's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Siembab accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Quartz list Katherine Siembab as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katherine Siembab was last updated on August 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.