Sharon Brennan
Family Nurse Practitioner · Oak Lawn, IL
Sharon Brennan is a family nurse practitioner with a practice address in Oak Lawn, Illinois, and NPI 1982003109, issued on Aug 14, 2014. Check the license (Illinois 209-011414, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sharon Brennan
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209-011414 IL
209011414 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4440 West 95TH Street, Oak Lawn, IL 60464
- Phone
- (708) 684-4382
- Enumerated
- Aug 14, 2014
- Record last updated
- Feb 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210305001707); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 4440 West 95TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheryl Hager, APNMedical-Surgical Clinical Nurse Specialist1699000315
- Marie-Ellen Sarvida, M.D.Pediatric Hematology & Oncology Physician1801005848
- Dalia SawickiAcute Care Nurse Practitioner1477188449
- Brittany Vissepo, AGACNP-BCAcute Care Nurse Practitioner1144953977
- Karla WehrheimPediatric Cardiology Physician1013233022
Verify Sharon Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209-011414Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family nurse practitioner in 2024
102 Medicare Part D claims for 14 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium12 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: $101.21
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Advocate Health And Hospitals CorporationOak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
93 family nurse practitioner records list a practice address in Oak Lawn
They are 93 of the 2,993 NPPES records with a practice address in Oak Lawn, and 7,639 family nurse practitioner records in Illinois.
All 93 in Oak Lawn → All 7,639 in Illinois → Every provider in Oak Lawn →
Other family nurse practitioner records in Illinois
- Crystal Aandahl, FNPNorth Chicago, IL1316497068
- Deborah Aaron, FNPChicago, IL1114024916
- Roseviminda Abano, CNPGurnee, IL1215318555
- Theresa AbbaduskyPekin, IL1265892046
- Nadia Abbasi-Kling, FNP-BCChicago, IL1033767736
- Manar Abdalla, FNPChicago, IL1700632411
- Mahubah Abdallah, FNP-CRochelle, IL1841752284
- Rana Abdallah, DNP, APRN, FNP-CLake Villa, IL1851261887
- Servet Abdelhafez, APRNBrookfield, IL1790505048
- Nadia Abdessalam, FNP-BCOak Lawn, IL1356888283
Common questions
What is Sharon Brennan's NPI number?
Sharon Brennan's National Provider Identifier (NPI) is 1982003109, issued on Aug 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sharon Brennan located?
The NPPES record lists a practice address at 4440 West 95TH Street, Oak Lawn, IL, 60464. Phone: (708) 684-4382. Providers update this record themselves, so call before visiting.
How can I verify Sharon Brennan's license?
NPPES lists Illinois license number 209-011414, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Sharon Brennan prescribe under Medicare Part D?
In 2024, Sharon Brennan had 102 Medicare Part D claims for 14 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.