RAJESH S PILLAI MD
NPI 1083836027
Internal Medicine - Gastroenterology in Elgin, IL
About Rajesh S Pillai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAJESH S PILLAI MD (NPI 1083836027) is an individual gastroenterology provider in Elgin, Illinois, licensed in Illinois (036109740) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
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
Rajesh S Pillai 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
2Medicare enrollment records show Rajesh Pillai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elgin, IL 60123
- Reassigned Medicare billing, Illinois enrollment
- 235 clinicians in this Medicare group
Maywood, IL 60153
- Reassigned Medicare billing, Illinois enrollment
- 1,138 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 21
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILPresence Saint Joseph Hospital - Elgin
Acute Care Hospitals · Elgin, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILLoyola University Medical Center
Acute Care Hospitals · Maywood, ILNorthwestern Medicine Kishwaukee Hospital
Acute Care Hospitals · Dekalb, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60123 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ELGIN, IL 60123
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 Rajesh Pillai's NPI number?
The NPI number for Rajesh Pillai is 1083836027. It was assigned to this individual provider in the NPPES registry on May 2, 2007.
Where is Rajesh Pillai located?
Rajesh Pillai practices at 745 Fletcher Dr Ste 202, Elgin, IL 60123. The listed phone number is (847) 888-1300.
What is Rajesh Pillai's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Rajesh Pillai enrolled in Medicare?
Yes. Rajesh Pillai 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 Rajesh Pillai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rajesh Pillai reassigns Medicare benefits to 2 organizations: Illinois Gastroenterology Group, LLC (Elgin, IL) and Loyola University Medical Center (Maywood, 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 Rajesh Pillai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Rajesh Pillai affiliated with any hospitals?
According to CMS data, Rajesh Pillai is affiliated with Advocate Sherman Hospital, Presence Saint Joseph Hospital - Elgin, Northwestern Medicine Central Dupage Hospital, Loyola University Medical Center and Northwestern Medicine Kishwaukee Hospital.
When was this NPI record last updated?
The NPPES record for Rajesh Pillai was last updated on January 19, 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.