OSAMA ALSAIED M.D.
NPI 1861635153
Surgery - Trauma Surgery in Chicago, IL
About Osama Alsaied M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OSAMA ALSAIED M.D. (NPI 1861635153) is an individual trauma surgery provider in Chicago, Illinois, licensed in Illinois (036-163631) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (2008).
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
Osama Alsaied 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
5Medicare enrollment records show Osama Alsaied reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 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 7
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 Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILAdvocate Condell Medical Center
Acute Care Hospitals · Libertyville, ILAdvocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILCommunity First Medical Center
Acute Care Hospitals · Chicago, ILMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60657
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 Osama Alsaied's NPI number?
The NPI number for Osama Alsaied is 1861635153. It was assigned to this individual provider in the NPPES registry on April 15, 2009.
Where is Osama Alsaied located?
Osama Alsaied practices at 3000 N Halsted St Ste 509, Chicago, IL 60657. The listed phone number is (773) 296-3390.
What is Osama Alsaied's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.
Is Osama Alsaied enrolled in Medicare?
Yes. Osama Alsaied 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 Osama Alsaied's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Osama Alsaied reassigns Medicare benefits to 5 organizations: Advocate Health And Hospitals Corp. (Chicago, IL), Aurora Medical Group, Inc. (Milwaukee, WI), Mchs Hospitals, Inc. (Plover, WI), Marshfield Clinic Inc (Marshfield, WI) and Memorial Hospital, Inc (Neillsville, WI). 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 Osama Alsaied's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Osama Alsaied accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, CareSource (Common Ground Healthcare) and Oscar Health list Osama Alsaied 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 Osama Alsaied affiliated with any hospitals?
According to CMS data, Osama Alsaied is affiliated with Advocate Illinois Masonic Medical Center, Advocate Condell Medical Center, Advocate Lutheran General Hospital and Community First Medical Center.
When was this NPI record last updated?
The NPPES record for Osama Alsaied was last updated on September 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.