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ALEJANDRA MARIA CASAR BERAZALUCE MD, MSC
NPI 1518329077
Surgery - Pediatric Surgery in Chicago, IL

Active since March 24, 2016PECOS Enrolled
5841 S MARYLAND AVE, CHICAGO, IL 60637(773) 702-6175(773) 702-1192 Get Directions Write a Review

NPPES record last updated: December 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 9, 2025, Nov 14, 2025, Jul 11, 2023 and 3 more (6 updates tracked since 2016).

About Alejandra Maria Casar Berazaluce Md, Msc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEJANDRA MARIA CASAR BERAZALUCE MD, MSC (NPI 1518329077) is an individual pediatric surgery provider in Chicago, Illinois, licensed in Illinois (036176871) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Park Ridge, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1518329077
Entity TypeIndividualFemale
Primary Taxonomy2086S0120X
Provider Legal NameALEJANDRA MARIA CASAR BERAZALUCECredential: MD, MSC
Location Address5841 S MARYLAND AVEChicago, IL 60637-1443
Mailing Address150 Harvester Dr Ste 300Burr Ridge, IL 60527-5965
Phone(773) 702-6175
Fax(773) 702-1192
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateMarch 24, 2016
Last NPPES UpdateDecember 9, 20256 updates tracked since enumeration
NPPES CertifiedDecember 9, 2025
✔ NPI 1518329077 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
License✔ Licensed in IL · 036176871
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
5841 S MARYLAND AVE, Chicago, IL 60637
Open in Google Maps ↗

Secondary Practice Location 1

Location 11675 Dempster St Fl 3Park Ridge, IL 60068-1110 · Phone (847) 318-9330

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alejandra Maria Casar Berazaluce Md, Msc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8820395981
PECOS Enrollment IDI20251125002586
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Alejandra Casar Berazaluce reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200
Advocate Health & Hospitals Corporation
8.1 mi
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. DON MARTINEZ M.D.
Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 926-8318
ALEXANDRA DUMITRESCU
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
PELEG HOROWITZ
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
SANDEEP GURBUXANI
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
DR. NIREN GANDRA M.D.
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-0240
ALLIE DAKROUB MD MS
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
SCOTT VASHER MD
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
DR. NATHAN CHARLES NOWALK M.D.
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200

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 Alejandra Casar Berazaluce's NPI number?

The NPI number for Alejandra Casar Berazaluce is 1518329077. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Where is Alejandra Casar Berazaluce located?

Alejandra Casar Berazaluce practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (773) 702-6175.

What is Alejandra Casar Berazaluce's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Alejandra Casar Berazaluce enrolled in Medicare?

Yes. Alejandra Casar Berazaluce is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alejandra Casar Berazaluce's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alejandra Casar Berazaluce reassigns Medicare benefits to 3 organizations: The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL) and Advocate Health & Hospitals Corporation (Oak Lawn, 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 Alejandra Casar Berazaluce's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alejandra Casar Berazaluce accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Alejandra Casar Berazaluce 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.

When was this NPI record last updated?

The NPPES record for Alejandra Casar Berazaluce was last updated on December 9, 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.