Mary Ellen O'Connor
Occupational Therapist · Chicago, IL
Mary Ellen O'Connor is an occupational therapist with a practice address in Chicago, Illinois, and NPI 1780064246, issued on May 31, 2015. Check the license (Illinois 056009875, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Ellen O'Connor
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- 056009875 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2450 N Central Ave, Chicago, IL 60639
- Phone
- (773) 889-1333
- Enumerated
- May 31, 2015
- Record last updated
- Feb 28, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210629000726); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 5,855 in Illinois → Look up another NPI →
Also registered at 2450 N Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Mooney, MS, CCC-SLPSpeech-Language Pathologist1720545791
- Tierra WilliamsAdult Health Nurse Practitioner1144977935
Verify Mary Ellen O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 056009875Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- The Board OF Trustees OF The University OF IllinoisChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Ellen O'Connor among 5,855 occupational therapist records in Illinois
Mary Ellen O'Connor 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. Its NPI, issued in 2015, is newer than 46% of them.
- NPI issued2015 · 46% of these records are older, 50% newer
- In a Medicare fileYes · 13% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated2012 · median 2014 among the 799 with a school on file
- Record last updated2019 · 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.
All 5,855 in Illinois → Every provider in Chicago → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Alma Garcia, OTR/LChicago, IL 606391730548991
- Samantha GouldChicago, IL 606391235925983
- Janie Mullins, MOTChicago, IL 606391447929526
- Nakema Williams, OTR/LChicago, IL 606391942553516
- Ashley Akiyama, MOT, OTR/LChicago, IL 606381114681533
- Roya BaharestaniChicago, IL 606401275862070
- Candace Buggs, MOTR/LChicago, IL 606401225358062
- Kathryn Champagne, OTR/LChicago, IL 606381528594611
Common questions
What is Mary Ellen O'Connor's NPI number?
Mary Ellen O'Connor's National Provider Identifier (NPI) is 1780064246, issued on May 31, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ellen O'Connor located?
The NPPES record lists a practice address at 2450 N Central Ave, Chicago, IL, 60639. Phone: (773) 889-1333. Providers update this record themselves, so call before visiting.
How can I verify Mary Ellen O'Connor's license?
NPPES lists Illinois license number 056009875, 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. 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.