Mary Kathleen Simon, PA-C
Physician Assistant · Chicago, IL
Mary Kathleen Simon, PA-C is a physician assistant with a practice address in Chicago, Illinois, and NPI 1730709411, issued on Apr 22, 2020. Check the license (Illinois 085008158, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Kathleen Simon
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085008158 IL
Self-reported in NPPES; status is on the state search - Practice location
- 333 N Michigan Ave Ste 1400, Chicago, IL 60601
- Phone
- (312) 815-9660
- Enumerated
- Apr 22, 2020
- Record last updated
- Aug 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210902000818); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 333 N Michigan Ave Ste 1400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Kathleen Simon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085008158Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average physician assistant in 2024
385 Medicare Part D claims for 98 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium54 claims
- Amlodipine Besylate26 claims
- Metformin Hcl19 claims
- Losartan Potassium13 claims
- Lisinopril12 claims
- Metoprolol Succinate12 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.
Bills Medicare through one group practice
- Rush University Medical GroupChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Kathleen Simon among 4,926 physician assistant records in Illinois
Mary Kathleen Simon, PA-C is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 58% of them.
- NPI issued2020 · 58% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2019 among the 3,407 with a school on file
- Record last updated2021 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,445 physician assistant records list a practice address in Chicago
They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Chicago → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
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- Gayathri Ganesh, PA-CChicago, IL 606011801547120
- Catherine Hickey, PA-CChicago, IL 606011861964256
- Nathan Jent, PA-CChicago, IL 606011184296303
- Cyrus Ma, PA-CChicago, IL 606011669133369
- Kayla McCarthy, PA-CChicago, IL 606011386264992
Common questions
What is Mary Kathleen Simon, PA-C's NPI number?
Mary Kathleen Simon, PA-C's National Provider Identifier (NPI) is 1730709411, issued on Apr 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathleen Simon, PA-C located?
The NPPES record lists a practice address at 333 N Michigan Ave Ste 1400, Chicago, IL, 60601. Phone: (312) 815-9660. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathleen Simon, PA-C's license?
NPPES lists Illinois license number 085008158, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Kathleen Simon, PA-C prescribe under Medicare Part D?
In 2024, Mary Kathleen Simon, PA-C had 385 Medicare Part D claims for 98 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.