MOUSAB ALMUSADDY M.D.
NPI 1699720896
Internal Medicine - Critical Care Medicine in Joliet, IL
About Mousab Almusaddy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOUSAB ALMUSADDY M.D. (NPI 1699720896) is an individual critical care medicine provider in Joliet, Illinois, licensed in Illinois (036-102603) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Trinity Hospital, and maintains a secondary practice location in Oak Lawn.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 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
Mousab Almusaddy M.d. 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
9Medicare enrollment records show Mousab Almusaddy reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palos Heights, IL 60463
- Reassigned Medicare billing, Illinois enrollment
- 52 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1629441027 (Illinois)
- 4,870 clinicians in this Medicare group
Aurora, IL 60506
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Chicago, IL 60620
- Reassigned Medicare billing, Illinois enrollment
- 2,127 clinicians in this Medicare group
Des Plaines, IL 60016
- Reassigned Medicare billing, Illinois enrollment
- 443 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 clinicians in this Medicare group
West Liberty, KY 41472
- Reassigned Medicare billing, Kentucky and Illinois enrollments
- Also billed through NPI 1962520312 (Illinois)
- 419 clinicians in this Medicare group
Burkesville, KY 42717
- Reassigned Medicare billing, Kentucky enrollment
- 66 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 17
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Trinity Hospital
Acute Care Hospitals · Chicago, ILOsf Little Company Of Mary Medical Center
Acute Care Hospitals · Evergreen Park, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILMiddlesboro Arh Hospital
Acute Care Hospitals · Middlesboro, KYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60435 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 18
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
JOLIET, IL 60435
JOLIET, IL 60435
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 Mousab Almusaddy's NPI number?
The NPI number for Mousab Almusaddy is 1699720896. It was assigned to this individual provider in the NPPES registry on May 24, 2006.
Where is Mousab Almusaddy located?
Mousab Almusaddy practices at 1600 Plainfield Rd, Joliet, IL 60435. The listed phone number is (815) 729-0111.
What is Mousab Almusaddy's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Mousab Almusaddy enrolled in Medicare?
Yes. Mousab Almusaddy 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 Mousab Almusaddy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mousab Almusaddy reassigns Medicare benefits to 9 organizations: Midwest Pulmonary Critical Care & Sleep Consultants LLC (Palos Heights, IL), Advocate Health And Hospitals Corporation (Downers Grove, IL), Cep America Illinois Intensivists (Aurora, IL), The Board Of Trustees Of The University Of Illinois (Chicago, IL), Prime Healthcare Illinois Medical Group LLC (Des Plaines, IL) and 4 more organizations, listed in the Medicare section above. 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 Mousab Almusaddy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mousab Almusaddy accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and CareSource list Mousab Almusaddy 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 Mousab Almusaddy affiliated with any hospitals?
According to CMS data, Mousab Almusaddy is affiliated with Advocate Trinity Hospital, Osf Little Company Of Mary Medical Center, Advocate Christ Hospital & Medical Center and Middlesboro Arh Hospital.
When was this NPI record last updated?
The NPPES record for Mousab Almusaddy was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.