CHICAGOLAND NEUROPSYCHOLOGY LLC
NPI 1275946048
Clinical Neuropsychologist in Oak Park, IL
About Chicagoland Neuropsychology Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHICAGOLAND NEUROPSYCHOLOGY LLC (NPI 1275946048) is a healthcare organization registered as a clinical neuropsychologist in Oak Park, Illinois and active in the NPI registry since June 2014. The organization lists Colin Brietzke, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Chicagoland Neuropsychology Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Chicagoland Neuropsychology LLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (4)
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 Chicagoland Neuropsychology LLC's NPI number?
The NPI number for Chicagoland Neuropsychology LLC is 1275946048. It was assigned to this organization in the NPPES registry on June 9, 2014.
Where is Chicagoland Neuropsychology LLC located?
Chicagoland Neuropsychology LLC is located at 101 N Marion St Ste 313, Oak Park, IL 60301. The listed phone number is (773) 931-3439.
What is Chicagoland Neuropsychology LLC's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Chicagoland Neuropsychology LLC enrolled in Medicare?
Yes. Chicagoland Neuropsychology LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Chicagoland Neuropsychology LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians in 2 Medicare specialties reassign their Medicare billing to Chicagoland Neuropsychology LLC. A 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 the clinician's services. The largest specialties are Clinical Psychologist (3) and Mental Health Counselor (1). Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Chicagoland Neuropsychology LLC was last updated on June 9, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Chicagoland Neuropsychology Llc · NPI 1275946048
Clinical Neuropsychologist organization in Oak Park, Illinois. Organization record, active in the CMS NPPES registry since June 9, 2014.
## Identity
- **NPI:** 1275946048 (Entity type: Organization)
- **Enumerated:** June 9, 2014
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **Organization subpart:** No
- **Authorized official:** Colin Brietzke, OWNER
## Practice location
- **Address:** 101 N MARION ST, STE 313, Oak Park, IL 60301-1167
- **Phone:** (773) 931-3439
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 4 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Psychologist (3), Mental Health Counselor (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 9, 2014
---
Source: [NPI Profile](https://npiprofile.com/npi/1275946048) · Data from the CMS NPPES public registry.