COURTNEY M SIEWAK LCPC
NPI 1346947033
Counselor - Professional in Bolingbrook, IL
About Courtney M Siewak Lcpc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COURTNEY M SIEWAK LCPC (NPI 1346947033) is an individual professional provider in Bolingbrook, Illinois and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Courtney M Siewak Lcpc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Courtney Siewak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rockford, IL 61107
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rockford Psychiatric Medical Services Sc
- 163 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Courtney Siewak's NPI number?
The NPI number for Courtney Siewak is 1346947033. It was assigned to this individual provider in the NPPES registry on February 13, 2023.
Where is Courtney Siewak located?
Courtney Siewak practices at 486 W Boughton Rd Ste B, Bolingbrook, IL 60440. The listed phone number is (630) 755-5278.
What is Courtney Siewak's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Courtney Siewak enrolled in Medicare?
Yes. Courtney Siewak is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Courtney Siewak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Courtney Siewak reassigns Medicare benefits to Rockford Psychiatric Medical Services, S.C. (Rockford, 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 Courtney Siewak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Courtney Siewak was last updated on February 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Courtney M Siewak, LCPC · NPI 1346947033
Professional provider in Bolingbrook, Illinois. Individual provider, active in the CMS NPPES registry since February 13, 2023.
## Identity
- **NPI:** 1346947033 (Entity type: Individual)
- **Enumerated:** February 13, 2023
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 486 W BOUGHTON RD STE B, Bolingbrook, IL 60440-2399
- **Phone:** (630) 755-5278
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for durable medical equipment
- **Bills Medicare through:** Rockford Psychiatric Medical Services, S.C. (NPI 1821391442, Rockford, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 13, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1346947033) · Data from the CMS NPPES public registry.