Marianne K. Butler, APN
Family Nurse Practitioner · Chicago, IL
Marianne K. Butler, APN is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1518228915, issued on Jun 1, 2012. Check the license (Illinois 209009171, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marianne K. Butler
- Credential
- APN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209009171 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1431 N Western Ave, Chicago, IL 60622
- Phone
- (312) 633-5841
- Enumerated
- Jun 1, 2012
- Record last updated
- May 14, 2024
- Fax
- (312) 491-5020
- Medicaid ID
- 209009171 IL
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 1431 N Western Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marianne K. Butler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209009171Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average family nurse practitioner in 2024
1,899 Medicare Part D claims for 109 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium161 claims
- Albuterol Sulfate Hfa92 claims
- Lisinopril76 claims
- Metformin Hcl58 claims
- Fluticasone Propionate51 claims
- Omeprazole50 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.
Marianne K. Butler among 7,639 family nurse practitioner records in Illinois
Marianne K. Butler, 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 fileNo · 63% of these records are
- Record last updated2024 · 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
- Amy Becklenberg, APNChicago, IL 606221760558589
- Evelyn Cato, A.P.N.Chicago, IL 606221982911327
- Katherine Flechet, APNChicago, IL 606221255752192
- Staci Gorson, FNP-BCChicago, IL 606221306274022
- Emily Hendel, CNP, MSChicago, IL 606221417118613
- Ann McCormick, APNChicago, IL 606221063436889
- Mary-Anne Meyer, APNChicago, IL 606221811918402
- Loretta Mohr, RN-C APNChicago, IL 606221841380193
Common questions
What is Marianne K. Butler, APN's NPI number?
Marianne K. Butler, APN's National Provider Identifier (NPI) is 1518228915, issued on Jun 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Marianne K. Butler, APN located?
The NPPES record lists a practice address at 1431 N Western Ave, Chicago, IL, 60622. Phone: (312) 633-5841. Providers update this record themselves, so call before visiting.
How can I verify Marianne K. Butler, APN's license?
NPPES lists Illinois license number 209009171, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Marianne K. Butler, APN prescribe under Medicare Part D?
In 2024, Marianne K. Butler, APN had 1,899 Medicare Part D claims for 109 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.