DR. ABRAHIM UDDIN SYED M.D.
NPI 1932546249
Internal Medicine - Rheumatology in Warrenville, IL
About Dr. Abrahim Uddin Syed M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ABRAHIM UDDIN SYED M.D. (NPI 1932546249) is an individual rheumatology provider in Warrenville, Illinois, licensed in Illinois (036153475) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Palos Community Hospital, and maintains a secondary practice location in Geneva.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Dr. Abrahim Uddin Syed 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 Reassignment
Medicare enrollment records show Abrahim Syed reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 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 6
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.
Palos Community Hospital
Acute Care Hospitals · Palos Heights, ILNorthwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60555 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WARRENVILLE, IL 60555
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 Abrahim Syed's NPI number?
The NPI number for Abrahim Syed is 1932546249. It was assigned to this individual provider in the NPPES registry on May 28, 2013.
Where is Abrahim Syed located?
Abrahim Syed practices at 27650 Ferry Rd Ste 210, Warrenville, IL 60555. The listed phone number is (630) 933-7400.
What is Abrahim Syed's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Abrahim Syed enrolled in Medicare?
Yes. Abrahim Syed 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 organization bills Medicare for Abrahim Syed's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abrahim Syed reassigns Medicare benefits to Central Dupage Physician Group (Carol Stream, IL). The 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 Abrahim Syed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Abrahim Syed affiliated with any hospitals?
According to CMS data, Abrahim Syed is affiliated with Palos Community Hospital, Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Abrahim Syed was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.