UNIVERSITY OF CHICAGO
NPI 1821048786
Clinic/Center - Multi-Specialty in Chicago, IL
About University Of Chicago NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
UNIVERSITY OF CHICAGO (NPI 1821048786) is a healthcare organization registered as a multi-specialty in Chicago, Illinois and active in the NPI registry since May 2006. The organization lists Mary Jean Ostrander, Manager - Provider Enrollment, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
University Of Chicago is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
2,301Medicare enrollment records show 2,301 clinicians reassign Medicare billing to University Of Chicago, which bills Medicare for the services they deliver. Of these, 1,533 practice at this address and 1,770 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 63
Nearest to this location (20)
See all 2,301Chicago, IL 60637
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 University Of Chicago's NPI number?
The NPI number for University Of Chicago is 1821048786. It was assigned to this organization in the NPPES registry on May 11, 2006.
Where is University Of Chicago located?
University Of Chicago is located at 5841 S Maryland Ave Ucpg/Mc 1099, Chicago, IL 60637. The listed phone number is (773) 702-9200.
What is University Of Chicago's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Multi-Specialty, with taxonomy code 261QM1300X.
Is University Of Chicago enrolled in Medicare?
Yes. University Of Chicago is registered in the Medicare PECOS enrollment system.
When is University Of Chicago's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Illinois, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through University Of Chicago?
According to the CMS Revalidation Reassignment List (October 2026 release), 2,301 clinicians in 63 Medicare specialties reassign their Medicare billing to University Of Chicago. 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 Nurse Practitioner (405), Pediatric Medicine (244) and Anesthesiology (146). Of these, 1,533 practice at this address and 1,770 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does University Of Chicago accept?
Health plans from Ambetter Health list University Of Chicago 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 University Of Chicago was last updated on November 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# University Of Chicago · NPI 1821048786
Multi-Specialty organization in Chicago, Illinois. Organization record, active in the CMS NPPES registry since May 11, 2006.
## Identity
- **NPI:** 1821048786 (Entity type: Organization)
- **Enumerated:** May 11, 2006
- **Primary specialty:** Clinic/Center - Multi-Specialty · taxonomy 261QM1300X
- **Organization subpart:** No
- **Authorized official:** Mary Ostrander, MANAGER - PROVIDER ENROLLMENT
## Practice location
- **Address:** 5841 S MARYLAND AVE, UCPG/MC 1099, Chicago, IL 60637-1447
- **Phone:** (773) 702-9200
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Illinois, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2,301 clinicians in 63 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (405), Pediatric Medicine (244), Anesthesiology (146); 1,533 practice at this address and 1,770 within 10 miles; [full list](https://npiprofile.com/npi/1821048786/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 3, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1821048786) · Data from the CMS NPPES public registry.