GENEVIEVE SAN NICOLAS APRN, AGACNP-BC, DNP
NPI 1174090500
Nurse Practitioner in Chicago, IL
About Genevieve San Nicolas Aprn, Agacnp-bc, Dnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GENEVIEVE SAN NICOLAS APRN, AGACNP-BC, DNP (NPI 1174090500) is an individual nurse practitioner in Chicago, Illinois, licensed in Illinois (209032944) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 3
Accepted Insurance
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
Genevieve San Nicolas Aprn, Agacnp-bc, Dnp 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 Genevieve San Nicolas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
West Palm Beach, FL 33409
- Reassigned Medicare billing, Florida enrollment
- 373 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.
Northwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 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 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
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 Genevieve San Nicolas's NPI number?
The NPI number for Genevieve San Nicolas is 1174090500. It was assigned to this individual provider in the NPPES registry on October 24, 2018.
Where is Genevieve San Nicolas located?
Genevieve San Nicolas practices at 251 E Huron St Ste 5-704, Chicago, IL 60611. The listed phone number is (312) 695-0061.
What is Genevieve San Nicolas's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Genevieve San Nicolas enrolled in Medicare?
Yes. Genevieve San Nicolas 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 Genevieve San Nicolas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Genevieve San Nicolas reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and MD Now Medical Centers Inc (West Palm Beach, FL). 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 Genevieve San Nicolas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Genevieve San Nicolas accept?
Health plans from 22 Health list Genevieve San Nicolas 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.
Is Genevieve San Nicolas affiliated with any hospitals?
According to CMS data, Genevieve San Nicolas is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Genevieve San Nicolas was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.