DR. THOMAS G SHEAGREN M.D.
NPI 1255418703
Pediatrics - Neonatal-Perinatal Medicine in Park Ridge, IL
About Dr. Thomas G Sheagren M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS G SHEAGREN M.D. (NPI 1255418703) is an individual neonatal-perinatal medicine provider in Park Ridge, Illinois, licensed in Illinois (036-05555) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Thomas G Sheagren M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Thomas Sheagren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 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.
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 Thomas Sheagren's NPI number?
The NPI number for Thomas Sheagren is 1255418703. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Thomas Sheagren located?
Thomas Sheagren practices at 1775 Dempster St, Park Ridge, IL 60068. The listed phone number is (847) 723-5313.
What is Thomas Sheagren's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Thomas Sheagren enrolled in Medicare?
Yes. Thomas Sheagren is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Thomas Sheagren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Sheagren reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, 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 Thomas Sheagren'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 Thomas Sheagren was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.