Mary L. Brown, APN
Family Nurse Practitioner · Chicago, IL
Mary L. Brown, APN is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1508127051, issued on May 31, 2012. Check the license (Illinois 209006041, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary L. Brown
- Credential
- APN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209006041 IL
Self-reported in NPPES; status is on the state search - Practice location
- 800 E 55TH St, Chicago, IL 60615
- Phone
- (773) 702-0660
- Enumerated
- May 31, 2012
- Record last updated
- Mar 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130627000785); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 800 E 55TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary L. Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209006041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family nurse practitioner in 2024
178 Medicare Part D claims for 21 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate13 claims
- Albuterol Sulfate Hfa12 claims
- Hydrochlorothiazide11 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.
Industry payments in 2024: $13.35
1 payment: food and beverage; the largest payer was Lundbeck LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pcc Community Wellness CenterOak Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary L. Brown among 7,639 family nurse practitioner records in Illinois
Mary L. Brown, APN is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 14% of them.
- NPI issued2012 · 14% of these records are older, 83% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1998 · median 2018 among the 4,778 with a school on file
- Record last updated2020 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,567 family nurse practitioner records list a practice address in Chicago
They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Chicago → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Julie-Ann Collins, NPChicago, IL 606151063800720
- Debra Conti, FNP-BCChicago, IL 606151063621589
- Tonya Cosby, FNP-CChicago, IL 606151134642770
- Germaine Desruisseaux, NPChicago, IL 606151578752051
- Theresa Flerick, N.P.Chicago, IL 606151689770695
- April Hamlet, APNChicago, IL 606151023412541
- Dianna Hilson, FNP-BCChicago, IL 606151487135208
- Leslie McLaurin, APNChicago, IL 606151548689367
Common questions
What is Mary L. Brown, APN's NPI number?
Mary L. Brown, APN's National Provider Identifier (NPI) is 1508127051, issued on May 31, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary L. Brown, APN located?
The NPPES record lists a practice address at 800 E 55TH St, Chicago, IL, 60615. Phone: (773) 702-0660. Providers update this record themselves, so call before visiting.
How can I verify Mary L. Brown, APN's license?
NPPES lists Illinois license number 209006041, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mary L. Brown, APN prescribe under Medicare Part D?
In 2024, Mary L. Brown, APN had 178 Medicare Part D claims for 21 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.