KATHERINE RIORDAN MD
NPI 1225923329
Neurological Surgery in Chicago, IL
About Katherine Riordan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE RIORDAN MD (NPI 1225923329) is an individual neurological surgery provider in Chicago, Illinois, licensed in Illinois (125086087) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Katherine Riordan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Katherine Riordan's NPI number?
The NPI number for Katherine Riordan is 1225923329. It was assigned to this individual provider in the NPPES registry on June 10, 2025.
Where is Katherine Riordan located?
Katherine Riordan practices at 1725 W Harrison St Ste 855, Chicago, IL 60612. The listed phone number is (312) 942-6644.
What is Katherine Riordan's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Katherine Riordan enrolled in Medicare?
Yes. Katherine Riordan is registered in the Medicare PECOS enrollment system.
When was this NPI record last updated?
The NPPES record for Katherine Riordan was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.