SAMEH H ATTIA M.D.
NPI 1396085700
Internal Medicine - Critical Care Medicine in Mchenry, IL
About Sameh H Attia M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SAMEH H ATTIA M.D. (NPI 1396085700) is an individual critical care medicine provider in Mchenry, Illinois, licensed in Illinois (036140213) and active in the NPI registry since February 2013. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Other Identifiers 1
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
Sameh H Attia 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
2Medicare enrollment records show Sameh Attia reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 clinicians in this Medicare group
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 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 11
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILNorthwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60050 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 3
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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MCHENRY, IL 60050
MCHENRY, IL 60050
MCHENRY, IL 60050
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 Sameh Attia's NPI number?
The NPI number for Sameh Attia is 1396085700. It was assigned to this individual provider in the NPPES registry on February 21, 2013.
Where is Sameh Attia located?
Sameh Attia practices at 4309 W Medical Center Dr Ste B305, Mchenry, IL 60050. The listed phone number is (847) 802-7400.
What is Sameh Attia's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Sameh Attia enrolled in Medicare?
Yes. Sameh Attia 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 Sameh Attia's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sameh Attia reassigns Medicare benefits to 2 organizations: Central Dupage Physician Group (Carol Stream, IL) and Southern Illinois Medical Services, Nfp (Carbondale, 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 Sameh Attia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sameh Attia affiliated with any hospitals?
According to CMS data, Sameh Attia is affiliated with Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital and Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Sameh Attia was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.