DR. THOMAS J. SCHAFFER D.D.S.
NPI 1780052936
Dentist - Dentist Anesthesiologist in Chicago, IL
About Dr. Thomas J. Schaffer D.d.s. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS J. SCHAFFER D.D.S. (NPI 1780052936) is an individual dentist anesthesiologist in Chicago, Illinois, licensed in Illinois (019.034077) and active in the NPI registry since September 2015. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 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 J. Schaffer D.d.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Thomas Schaffer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60621
- Reassigned Medicare billing, Illinois enrollment
- 77 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60621 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.
CHICAGO, IL 60621
CHICAGO, IL 60621
CHICAGO, IL 60621
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 Schaffer's NPI number?
The NPI number for Thomas Schaffer is 1780052936. It was assigned to this individual provider in the NPPES registry on September 4, 2015.
Where is Thomas Schaffer located?
Thomas Schaffer practices at 326 W 64th St, Chicago, IL 60621. The listed phone number is (773) 962-3900.
What is Thomas Schaffer's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Dentist Anesthesiologist, with taxonomy code 1223D0004X.
Is Thomas Schaffer enrolled in Medicare?
Yes. Thomas Schaffer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Thomas Schaffer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Schaffer reassigns Medicare benefits to St Bernard Hospital (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 Thomas Schaffer'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 Schaffer was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.