JACEK LOUIS UBAKA MD
NPI 1699081646
Pediatrics - Neonatal-Perinatal Medicine in Chicago, IL
About Jacek Louis Ubaka Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACEK LOUIS UBAKA MD (NPI 1699081646) is an individual neonatal-perinatal medicine provider in Chicago, Illinois, licensed in Illinois (036125529) and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jacek Louis Ubaka Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Jacek Ubaka reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 1,047 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 2,127 clinicians in this Medicare group
Des Plaines, IL 60016
- Reassigned Medicare billing, Illinois enrollment
- 443 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAG, IL 60612
CHICAGO, IL 60612
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 Jacek Ubaka's NPI number?
The NPI number for Jacek Ubaka is 1699081646. It was assigned to this individual provider in the NPPES registry on August 27, 2010.
Where is Jacek Ubaka located?
Jacek Ubaka practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 864-6000.
What is Jacek Ubaka's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Jacek Ubaka enrolled in Medicare?
Yes. Jacek Ubaka is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jacek Ubaka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jacek Ubaka reassigns Medicare benefits to 3 organizations: Cook County (Chicago, IL), The Board Of Trustees Of The University Of Illinois (Chicago, IL) and Prime Healthcare Illinois Medical Group LLC (Des Plaines, IL). Each 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 Jacek Ubaka'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 Jacek Ubaka was last updated on May 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Jacek Louis Ubaka, MD · NPI 1699081646
Neonatal-Perinatal Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since August 27, 2010.
## Identity
- **NPI:** 1699081646 (Entity type: Individual)
- **Enumerated:** August 27, 2010
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** 036125529 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1901 W HARRISON ST, Chicago, IL 60612-3714
- **Phone:** (312) 864-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Cook County (NPI 1245350040, Chicago, IL); The Board Of Trustees Of The University Of Illinois (NPI 1043727571, Chicago, IL); Prime Healthcare Illinois Medical Group LLC (NPI 1023837689, Des Plaines, IL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 4, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1699081646) · Data from the CMS NPPES public registry.