Marcin Lys
Occupational Therapist · Chicago, IL
Marcin Lys is an occupational therapist with a practice address in Chicago, Illinois, and NPI 1659826691, issued on Aug 19, 2016. Check the license (Illinois 056.011342, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marcin Lys
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- 056.011342 IL
Self-reported in NPPES; status is on the state search - Practice location
- 345 E Wacker Dr Unit 3911, Chicago, IL 60601
- Phone
- (708) 341-4242
- Enumerated
- Aug 19, 2016
- Record last updated
- Aug 19, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 5,855 in Illinois → Look up another NPI →
Verify Marcin Lys in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 056.011342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marcin Lys among 5,855 occupational therapist records in Illinois
Marcin Lys is one of 5,855 occupational therapist records with a practice address in Illinois. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 50% of them.
- NPI issued2016 · 50% of these records are older, 47% newer
- In a Medicare fileNo · 13% of these records are
- In the CMS Doctors and Clinicians fileNo · 14% of these records are
- Record last updated2016 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,267 occupational therapist records list a practice address in Chicago
They are 1,267 of the 63,379 NPPES records with a practice address in Chicago, and 5,855 occupational therapist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,855 in Illinois → Every provider in Chicago → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Jodi Armitage, OTChicago, IL 606011114143831
- Chad Brady, OTDChicago, IL 606011487381927
- Anne Cain Sheban, OTR/LChicago, IL 606011659699478
- Darcy Stack, MS, OTRLChicago, IL 606011679774525
- Uma Kelkar, MOTChicago, IL 606021326507575
- Angela LynchChicago, IL 606021639987480
- Swati Patel, MS, OTR/LChicago, IL 606021437392743
- Elise Krause, OTD, OTR/LChicago, IL 606031407448079
Common questions
What is Marcin Lys's NPI number?
Marcin Lys's National Provider Identifier (NPI) is 1659826691, issued on Aug 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Marcin Lys located?
The NPPES record lists a practice address at 345 E Wacker Dr Unit 3911, Chicago, IL, 60601. Phone: (708) 341-4242. Providers update this record themselves, so call before visiting.
How can I verify Marcin Lys's license?
NPPES lists Illinois license number 056.011342, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.