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MOHAMMED ABDULAZIZ HAMZAH MD
NPI 1861711632
Pediatrics - Pediatric Critical Care Medicine in Oak Lawn, IL

Active since May 19, 2010PECOS Enrolled
4440 W 95TH ST STE 3192H, OAK LAWN, IL 60453(708) 684-5685 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 8, 2025, Jun 10, 2024, Nov 10, 2021 (3 updates tracked since 2021).

About Mohammed Abdulaziz Hamzah Md NPPES

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

MOHAMMED ABDULAZIZ HAMZAH MD (NPI 1861711632) is an individual pediatric critical care medicine provider in Oak Lawn, Illinois, licensed in Ohio (128472) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1861711632
Entity TypeIndividualMale
Primary Taxonomy2080P0203X
Provider Legal NameMOHAMMED ABDULAZIZ HAMZAHCredential: MD
Location Address4440 W 95TH ST STE 3192HOak Lawn, IL 60453-2600
Mailing Address29373 Network PlChicago, IL 60673-1293
Phone(708) 684-5685
Sole ProprietorNo
Enumeration DateMay 19, 2010
Last NPPES UpdateFebruary 23, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2026
✔ NPI 1861711632 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
Licenses✔ Licensed in OH · 128472✔ Licensed in WI · 56372✔ Licensed in TX · V5409✔ Licensed in IL · 036-168860
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Also ListedPediatricsTaxonomy 208000000X · License V5409 (TX)
4440 W 95TH ST STE 3192H, Oak Lawn, IL 60453
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1333 N Santa RosaSan Antonio, TX 78207-3108 · Phone (210) 704-4100
Location 29500 Euclid AveCleveland, OH 44195-0001 · Phone (216) 217-8583 · Fax (414) 266-3563

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mohammed Abdulaziz Hamzah Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

4

Medicare enrollment records show Mohammed Hamzah reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health & Hospitals Corporation
Same address
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
The Medical College Of Wisconsin, Inc.
93 mi
Internal Medicine
8701 WATERTOWN PLANK RD
Milwaukee, WI 53226
  • Reassigned Medicare billing, Wisconsin enrollment
  • 3,983 clinicians in this Medicare group
NPI 1699720086 (414) 955-7101
Shriners Hospitals For Children
669 mi
Orthopaedic Surgery
3551 N BROAD ST
Philadelphia, PA 19140
  • Reassigned Medicare billing, Texas enrollment
  • 112 clinicians in this Medicare group
NPI 1275271462 (813) 518-7679
Baylor College Of Medicine
1,040 mi
Pediatrics
333 N SANTA ROSA
San Antonio, TX 78207
  • Reassigned Medicare billing, Texas enrollment
  • 453 clinicians in this Medicare group
NPI 1285079764 (210) 704-3030

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 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERIN EILEEN GORDON DO
Pediatrics (Pediatric Critical Care Medicine)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
IRA HOROWITZ MD
Pediatrics (Pediatric Critical Care Medicine)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
CHINNAMMAL C KANDASWAMY M.D.
Internal Medicine
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
DR. TRAVIS JORDAN MATICS D.O.
Pediatrics
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
DR. ENRIQUE GUILLERMO CIFUENTES M.D.
Pediatrics (Pediatric Critical Care Medicine)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
NINA MARIA CENSOPLANO D.O.
Pediatrics (Pediatric Critical Care Medicine)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
AMY ELIZABETH MCCLAREY
Nurse Practitioner (Pediatrics, Critical Care)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685
DR. EMILY CATHERINE DAWSON MD
Pediatrics (Pediatric Critical Care Medicine)
4440 W 95TH ST STE 3192H
OAK LAWN, IL 60453
Cook County (708) 684-5685

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 Mohammed Hamzah's NPI number?

The NPI number for Mohammed Hamzah is 1861711632. It was assigned to this individual provider in the NPPES registry on May 19, 2010.

Where is Mohammed Hamzah located?

Mohammed Hamzah practices at 4440 W 95th St Ste 3192H, Oak Lawn, IL 60453. The listed phone number is (708) 684-5685.

What is Mohammed Hamzah's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Mohammed Hamzah enrolled in Medicare?

Yes. Mohammed Hamzah is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mohammed Hamzah's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mohammed Hamzah reassigns Medicare benefits to 4 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Shriners Hospitals For Children (Philadelphia, PA) and Baylor College Of Medicine (San Antonio, TX). 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 Mohammed Hamzah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mohammed Hamzah accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and AmeriHealth Caritas Next and 7 other insurers list Mohammed Hamzah 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 Mohammed Hamzah was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.