DR. IRENEUSZ SZULAWSKI M.D.
NPI 1104874015
Internal Medicine in Lewistown, PA
About Dr. Ireneusz Szulawski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IRENEUSZ SZULAWSKI M.D. (NPI 1104874015) is an individual internal medicine provider in Lewistown, Pennsylvania, licensed in Pennsylvania (MD055201L) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ireneusz Szulawski M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ireneusz Szulawski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lewistown, PA 17044
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 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 17044 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
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.
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 Ireneusz Szulawski's NPI number?
The NPI number for Ireneusz Szulawski is 1104874015. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is Ireneusz Szulawski located?
Ireneusz Szulawski practices at 21 Geisinger Ln, Lewistown, PA 17044. The listed phone number is (717) 242-4200.
What is Ireneusz Szulawski's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ireneusz Szulawski enrolled in Medicare?
Yes. Ireneusz Szulawski is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ireneusz Szulawski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ireneusz Szulawski reassigns Medicare benefits to Geisinger Clinic (Lewistown, PA). 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 Ireneusz Szulawski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ireneusz Szulawski accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Ireneusz Szulawski 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.
When was this NPI record last updated?
The NPPES record for Ireneusz Szulawski was last updated on August 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.