NATHANIEL SCHWARTZ
NPI 1417530643
Internal Medicine in Chicago, IL
About Nathaniel Schwartz NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHANIEL SCHWARTZ (NPI 1417530643) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036180672) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Rush Medical College Of Rush University (2023).
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Nathaniel Schwartz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nathaniel Schwartz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: The Board Of Trustees Of The University Of Illinois
- 2,127 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 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.
CHICAGO, 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 Nathaniel Schwartz's NPI number?
The NPI number for Nathaniel Schwartz is 1417530643. It was assigned to this individual provider in the NPPES registry on May 5, 2021.
Where is Nathaniel Schwartz located?
Nathaniel Schwartz practices at 600 S Paulina St Ste 403, Chicago, IL 60612. The listed phone number is (312) 942-7100.
What is Nathaniel Schwartz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nathaniel Schwartz enrolled in Medicare?
Yes. Nathaniel Schwartz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nathaniel Schwartz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Schwartz reassigns Medicare benefits to Board Of Trustees Fo The University Of Illinois (Chicago, IL). The 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 Nathaniel Schwartz'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 Nathaniel Schwartz was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.