NABEEL SIDDIQUI MD
NPI 1154702116
Hospitalist in Elmhurst, IL
About Nabeel Siddiqui Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NABEEL SIDDIQUI MD (NPI 1154702116) is an individual hospitalist provider in Elmhurst, Illinois, licensed in Illinois (036-146676) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Nabeel Siddiqui Md 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 Nabeel Siddiqui reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Decatur, IL 62526
- Reassigned Medicare billing, Illinois enrollment
- 166 clinicians in this Medicare group
Mattoon, IL 61938
- Reassigned Medicare billing, Illinois enrollment
- 652 clinicians in this Medicare group
Taylorville, IL 62568
- Reassigned Medicare billing, Illinois enrollment
- 67 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 2
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.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILDecatur Memorial Hospital
Acute Care Hospitals · Decatur, ILTaylorville Memorial Hospital
Critical Access Hospitals · Taylorville, ILPana Community Hospital
Critical Access Hospitals · Pana, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60126 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ELMHURST, IL 60126
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 Nabeel Siddiqui's NPI number?
The NPI number for Nabeel Siddiqui is 1154702116. It was assigned to this individual provider in the NPPES registry on June 16, 2015.
Where is Nabeel Siddiqui located?
Nabeel Siddiqui practices at 155 E Brush Hill Rd, Elmhurst, IL 60126. The listed phone number is (331) 221-8952.
What is Nabeel Siddiqui's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Nabeel Siddiqui enrolled in Medicare?
Yes. Nabeel Siddiqui 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 Nabeel Siddiqui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nabeel Siddiqui reassigns Medicare benefits to 5 organizations: Endeavor Health Medical Group (Evanston, IL), Northwestern Medical Faculty Foundation (Carol Stream, IL), Decatur Memorial Hospital (Decatur, IL), Sarah Bush Lincoln Health Center (Mattoon, IL) and Taylorville Memorial Hospital (Taylorville, 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 Nabeel Siddiqui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nabeel Siddiqui accept?
Health plans from Oscar Health list Nabeel Siddiqui 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 Nabeel Siddiqui affiliated with any hospitals?
According to CMS data, Nabeel Siddiqui is affiliated with Northwestern Medicine Mchenry, Decatur Memorial Hospital, Taylorville Memorial Hospital and Pana Community Hospital.
When was this NPI record last updated?
The NPPES record for Nabeel Siddiqui was last updated on July 6, 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.
# Nabeel Siddiqui, MD · NPI 1154702116
Hospitalist physician in Elmhurst, Illinois. Individual provider, active in the CMS NPPES registry since June 16, 2015.
## Identity
- **NPI:** 1154702116 (Entity type: Individual)
- **Enumerated:** June 16, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036-146676 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 155 E BRUSH HILL RD, Elmhurst, IL 60126-5658
- **Phone:** (331) 221-8952
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); Decatur Memorial Hospital (NPI 1164477725, Decatur, IL); Sarah Bush Lincoln Health Center (NPI 1568581379, Mattoon, IL); Taylorville Memorial Hospital (NPI 1144292020, Taylorville, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1154702116) · Data from the CMS NPPES public registry.