BARTOSZ PIOTR LESZCZYNSKI D.O.
NPI 1932586534
Emergency Medicine in Olympia Fields, IL
About Bartosz Piotr Leszczynski D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARTOSZ PIOTR LESZCZYNSKI D.O. (NPI 1932586534) is an individual emergency medicine provider in Olympia Fields, Illinois, licensed in California (20A20209) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
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 and accepts Medicare assignment
Bartosz Piotr Leszczynski D.o. 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
5Medicare enrollment records show Bartosz Leszczynski reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 121 clinicians in this Medicare group
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 41 clinicians in this Medicare group
Tucson, AZ 85741
- Reassigned Medicare billing, Arizona enrollment
- 664 clinicians in this Medicare group
Mesa, AZ 85202
- Reassigned Medicare billing, Arizona enrollment
- 211 clinicians in this Medicare group
Blythe, CA 92225
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1073554002 (California)
- 2,323 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 4
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 60461 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
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 Bartosz Leszczynski's NPI number?
The NPI number for Bartosz Leszczynski is 1932586534. It was assigned to this individual provider in the NPPES registry on May 3, 2015.
Where is Bartosz Leszczynski located?
Bartosz Leszczynski practices at 20201 Crawford Ave Attn: Postdoctoral Education, Olympia Fields, IL 60461. The listed phone number is (708) 747-4000.
What is Bartosz Leszczynski's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Bartosz Leszczynski enrolled in Medicare?
Yes. Bartosz Leszczynski 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 Bartosz Leszczynski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bartosz Leszczynski reassigns Medicare benefits to 5 organizations: Ies Arizona PLLC (Tucson, AZ), Ies Obs Arizona PLLC (Tucson, AZ), Northwest Hbp Medical Services LLC (Tucson, AZ), Progressive Medical Associates PLLC (Mesa, AZ) and Cep America-California (Blythe, CA). 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 Bartosz Leszczynski'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 Bartosz Leszczynski was last updated on September 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.