MARIA SANDRA CORTEZ
NPI 1134598758
Nurse Anesthetist, Certified Registered in Chicago, IL
About Maria Sandra Cortez NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA SANDRA CORTEZ (NPI 1134598758) is an individual nurse anesthetist, certified registered in Chicago, Illinois, licensed in Illinois (209013535) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with University Of Illinois Hospital And Clinics, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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
Maria Sandra Cortez 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
3Medicare enrollment records show Maria Cortez 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
- 2,127 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 385 clinicians in this Medicare group
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 67 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Illinois Hospital And Clinics
Acute Care Hospitals · Chicago, ILPhysician 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 4
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 Maria Cortez's NPI number?
The NPI number for Maria Cortez is 1134598758. It was assigned to this individual provider in the NPPES registry on September 24, 2015.
Where is Maria Cortez located?
Maria Cortez practices at 1740 W Taylor St Ste 3200, Chicago, IL 60612. The listed phone number is (312) 996-4020.
What is Maria Cortez's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Maria Cortez enrolled in Medicare?
Yes. Maria Cortez 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 Maria Cortez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Cortez reassigns Medicare benefits to 3 organizations: Board Of Trustees Of The University Of Illinois (Chicago, IL), Midwest Anesthesia Partners, LLC (Chicago, IL) and Encore Anesthesia Group LLC (Oak Park, 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 Maria Cortez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Maria Cortez affiliated with any hospitals?
According to CMS data, Maria Cortez is affiliated with University Of Illinois Hospital And Clinics.
When was this NPI record last updated?
The NPPES record for Maria Cortez was last updated on January 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Maria Sandra Cortez · NPI 1134598758
Nurse Anesthetist, Certified Registered physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since September 24, 2015.
## Identity
- **NPI:** 1134598758 (Entity type: Individual)
- **Enumerated:** September 24, 2015
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 209013535 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1740 W TAYLOR ST STE 3200, Chicago, IL 60612-7232
- **Phone:** (312) 996-4020
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Board Of Trustees Of The University Of Illinois (NPI 1013136282, Chicago, IL); Midwest Anesthesia Partners, LLC (NPI 1255380184, Chicago, IL); Encore Anesthesia Group LLC (NPI 1558987883, Oak Park, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** January 31, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1134598758) · Data from the CMS NPPES public registry.