THIRUMAZHISAI GUNASEKARAN
NPI 1083651749
Pediatrics - Pediatric Gastroenterology in Park Ridge, IL
About Thirumazhisai Gunasekaran NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THIRUMAZHISAI GUNASEKARAN (NPI 1083651749) is an individual pediatric gastroenterology provider in Park Ridge, Illinois, licensed in Illinois (036084748) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Thirumazhisai Gunasekaran is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Thirumazhisai Gunasekaran reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60613
- Reassigned Medicare billing, Illinois enrollment
- 2,127 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PARK RIDGE, IL 60068
PARK RIDGE, IL 60068
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 Thirumazhisai Gunasekaran's NPI number?
The NPI number for Thirumazhisai Gunasekaran is 1083651749. It was assigned to this individual provider in the NPPES registry on June 1, 2006.
Where is Thirumazhisai Gunasekaran located?
Thirumazhisai Gunasekaran practices at 1675 Dempster St 3rd Floor, Park Ridge, IL 60068. The listed phone number is (847) 723-7700.
What is Thirumazhisai Gunasekaran's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.
Is Thirumazhisai Gunasekaran enrolled in Medicare?
Yes. Thirumazhisai Gunasekaran is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Thirumazhisai Gunasekaran's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thirumazhisai Gunasekaran reassigns Medicare benefits to The Board Of Trustees Of The University Of Illinois (Chicago, 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 Thirumazhisai Gunasekaran's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Thirumazhisai Gunasekaran was last updated on May 7, 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.
# Thirumazhisai Gunasekaran · NPI 1083651749
Pediatric Gastroenterology physician in Park Ridge, Illinois. Individual provider, active in the CMS NPPES registry since June 1, 2006.
## Identity
- **NPI:** 1083651749 (Entity type: Individual)
- **Enumerated:** June 1, 2006
- **Primary specialty:** Pediatrics - Pediatric Gastroenterology · taxonomy 2080P0206X
- **State license:** 036084748 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1675 DEMPSTER ST, 3RD FLOOR, Park Ridge, IL 60068-1110
- **Phone:** (847) 723-7700
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Board Of Trustees Of The University Of Illinois (NPI 1588815401, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 7, 2021
- **Other identifiers:** Medicaid 036084748 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1083651749) · Data from the CMS NPPES public registry.