Bartosz Piotr Leszczynski, D.O.
Emergency Medicine Physician · Olympia Fields, IL
Bartosz Piotr Leszczynski, D.O. is an emergency medicine physician with a practice address in Olympia Fields, Illinois, and NPI 1932586534, issued on May 3, 2015. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Bartosz Piotr Leszczynski
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A20209 CA
007953 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 20201 Crawford Ave, Olympia Fields, IL 60461
- Phone
- (708) 747-4000
- Enumerated
- May 3, 2015
- Record last updated
- Sep 21, 2022
- Medicaid ID
- 529225 AZ
- Medicare enrollment
- Enrolled (PECOS I20221005002296); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 20201 Crawford Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gremah Adam Aboubacar, DOStudent in an Organized Health Care Education/Training Program1619662392
- Tejaswini Addanki, DOStudent in an Organized Health Care Education/Training Program1306589163
- Saria Adnan Sultan, DOInternal Medicine Physician1679216196
Verify Bartosz Piotr Leszczynski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average emergency medicine physician in 2024
320 Medicare Part D claims for 211 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 32 claims were for opioids.
Most prescribed
- Cefdinir43 claims
- Ondansetron Odt36 claims
- Hydrocodone-Acetaminophen28 claims
- Amoxicillin-Clavulanate Potass21 claims
- Cephalexin20 claims
- Sulfamethoxazole-Trimethoprim16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cep America - CaliforniaRed Bluff, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bartosz Piotr Leszczynski among 3,291 emergency medicine physician records in Illinois
Bartosz Piotr Leszczynski, D.O. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 61% of them.
- NPI issued2015 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2015 · median 2012 among the 1,867 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 emergency medicine physician records list a practice address in Olympia Fields
They are 58 of the 684 NPPES records with a practice address in Olympia Fields, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Olympia Fields → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- April Brill, D.O.Olympia Fields, IL 604611396984324
- Christopher Colbert, DOOlympia Fields, IL 604611255444915
- Christina Deangelis, D.O.Olympia Fields, IL 604611942449715
- Sarah Green, DOOlympia Fields, IL 604611407849938
- Thomas Green, DOOlympia Fields, IL 604611689668808
- Brian Haag, M.D.Olympia Fields, IL 604611790732949
- Joanna Jackson, D.O.Olympia Fields, IL 604611841430139
- Martha Kelley, D.O.Olympia Fields, IL 604611942279252
Common questions
What is Bartosz Piotr Leszczynski, D.O.'s NPI number?
Bartosz Piotr Leszczynski, D.O.'s National Provider Identifier (NPI) is 1932586534, issued on May 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Bartosz Piotr Leszczynski, D.O. located?
The NPPES record lists a practice address at 20201 Crawford Ave, Olympia Fields, IL, 60461. Phone: (708) 747-4000. Providers update this record themselves, so call before visiting.
How can I verify Bartosz Piotr Leszczynski, D.O.'s license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bartosz Piotr Leszczynski, D.O. prescribe under Medicare Part D?
In 2024, Bartosz Piotr Leszczynski, D.O. had 320 Medicare Part D claims for 211 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Bartosz Piotr Leszczynski, D.O.'s MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.