BRIAN R YBARRA MD
NPI 1396328787
Hospitalist in Oak Park, IL
About Brian R Ybarra Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN R YBARRA MD (NPI 1396328787) is an individual hospitalist provider in Oak Park, Illinois, licensed in Illinois (036.180112) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and maintains a secondary practice location in Lake Forest.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Brian R Ybarra Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Brian Ybarra reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 548 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush Oak Park Hospital
Acute Care Hospitals · Oak Park, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
OAK PARK, IL 60304
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 Brian Ybarra's NPI number?
The NPI number for Brian Ybarra is 1396328787. It was assigned to this individual provider in the NPPES registry on May 3, 2021.
Where is Brian Ybarra located?
Brian Ybarra practices at 520 S Maple Ave, Oak Park, IL 60304. The listed phone number is (708) 660-4445.
What is Brian Ybarra's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Brian Ybarra enrolled in Medicare?
Yes. Brian Ybarra is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Brian Ybarra's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Ybarra reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Oak Brook, IL) and Rush Medical Group (Chicago, 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 Brian Ybarra's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Brian Ybarra affiliated with any hospitals?
According to CMS data, Brian Ybarra is affiliated with Rush Oak Park Hospital.
When was this NPI record last updated?
The NPPES record for Brian Ybarra was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 days 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.
# Brian R Ybarra, MD · NPI 1396328787
Hospitalist physician in Oak Park, Illinois. Individual provider, active in the CMS NPPES registry since May 3, 2021.
## Identity
- **NPI:** 1396328787 (Entity type: Individual)
- **Enumerated:** May 3, 2021
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036.180112 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 S MAPLE AVE, Oak Park, IL 60304-1022
- **Phone:** (708) 660-4445
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Rush University Medical Center (NPI 1801375696, Oak Brook, IL); Rush Medical Group (NPI 1467312850, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2023
## Record status
- **NPPES last updated:** October 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1396328787) · Data from the CMS NPPES public registry.