RUSH OAK PARK NOCTURNIST
NPI 1518260165
Internal Medicine in Oak Park, IL
About Rush Oak Park Nocturnist NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUSH OAK PARK NOCTURNIST (NPI 1518260165) is a healthcare organization registered as an internal medicine in Oak Park, Illinois and active in the NPI registry since December 2010. The organization lists Scott A Halper, Authorized Official, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
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)
Rush Oak Park Nocturnist is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
59Medicare enrollment records show 59 clinicians reassign Medicare billing to Rush Oak Park Nocturnist, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 19 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 12
Nearest to this location (20)
See all 59Oak Park, IL 60304
Maywood, IL 60153
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 Rush Oak Park Nocturnist's NPI number?
The NPI number for Rush Oak Park Nocturnist is 1518260165. It was assigned to this organization in the NPPES registry on December 20, 2010.
Where is Rush Oak Park Nocturnist located?
Rush Oak Park Nocturnist is located at 520 S Maple Ave, Oak Park, IL 60304. The listed phone number is (708) 393-9300.
What is Rush Oak Park Nocturnist's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Rush Oak Park Nocturnist enrolled in Medicare?
Yes. Rush Oak Park Nocturnist is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Rush Oak Park Nocturnist?
According to the CMS Revalidation Reassignment List (October 2026 release), 59 clinicians in 12 Medicare specialties reassign their Medicare billing to Rush Oak Park Nocturnist. 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 Hospitalist (13), Pulmonary Disease (11) and Internal Medicine (7). Of these, 2 practice at this address and 19 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 Rush Oak Park Nocturnist was last updated on June 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Rush Oak Park Nocturnist · NPI 1518260165
Internal Medicine organization in Oak Park, Illinois. Organization record, active in the CMS NPPES registry since December 20, 2010.
## Identity
- **NPI:** 1518260165 (Entity type: Organization)
- **Enumerated:** December 20, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** Yes (part of Rush Medical Group)
- **Authorized official:** Scott Halper, AUTHORIZED OFFICIAL
## Practice location
- **Address:** 520 S MAPLE AVE, Oak Park, IL 60304-1022
- **Phone:** (708) 393-9300
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 59 clinicians in 12 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Hospitalist (13), Pulmonary Disease (11), Internal Medicine (7); 2 practice at this address and 19 within 10 miles; [full list](https://npiprofile.com/npi/1518260165/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 4, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1518260165) · Data from the CMS NPPES public registry.