Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC
Clinical Nurse Specialist · Oak Lawn, IL
Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC is a clinical nurse specialist with a practice address in Oak Lawn, Illinois, and NPI 1972774560, issued on Mar 21, 2008. Check the license (Illinois 209-007019, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roxanne Jennifer Siemeck
- Credential
- APRN, CNS-BC, FNP-BC
- Primary taxonomy
- Clinical Nurse Specialist 364S00000X
- License numbers
- 209-007019 IL
209007019 IL
209013887 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4440 W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 684-9132
- Enumerated
- Mar 21, 2008
- Record last updated
- Jul 25, 2022
- Fax
- (708) 520-1871
- Medicare enrollment
- Enrolled (PECOS I20220714002161); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical nurse specialist records → All 162 in Illinois → Look up another NPI →
Also registered at 4440 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Akram Abdoue, M.D.Anesthesiology Physician1992752489
- Ahmad Abdulla, MDEmergency Medicine Physician1467202556
- Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
- Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
- Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663
Verify Roxanne Jennifer Siemeck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209-007019Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average clinical nurse specialist in 2024
474 Medicare Part D claims for 52 beneficiaries, against an average of 957 among the 361 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Warfarin Sodium53 claims
- Potassium Chloride45 claims
- Pantoprazole Sodium36 claims
- Spironolactone24 claims
- Digoxin22 claims
- Amoxicillin20 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: $503.61
12 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 457 providers of this specialty with any payment received $871.23 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 CorporationBuffalo Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roxanne Jennifer Siemeck among 162 clinical nurse specialist records in Illinois
Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC is one of 162 clinical nurse specialist records with a practice address in Illinois. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 36% of them.
- NPI issued2008 · 36% of these records are older, 60% newer
- In a Medicare fileYes · 51% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Graduated2007 · median 2008 among the 48 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364S00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Nurse Specialist providers in Illinois
There are 162 clinical nurse specialist records in Illinois.
All 162 in Illinois → Every provider in Oak Lawn → Clinical Nurse Specialist nationwide →
The 8 clinical nurse specialist records with the nearest ZIP codes
- Tom Blicharski, APNOak Lawn, IL 604531033460381
- Natalie Cates-Rudolph, APN/CNSOak Lawn, IL 604531336480359
- Maureen McCafferty, RN, APNOak Lawn, IL 604531669465480
- Renea McKeown, APN-BCOak Lawn, IL 604531720332125
- Andrea Merkler, APN, CDEOak Lawn, IL 604531477613073
- Maria Nilsson, M.S.N, A.P.N-BCOak Lawn, IL 604531881927457
- Judith Parker, R.N.Oak Lawn, IL 604531154410504
- Anne Gillian Roska, CNSOak Lawn, IL 604531548637804
Common questions
What is Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC's NPI number?
Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC's National Provider Identifier (NPI) is 1972774560, issued on Mar 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC located?
The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-9132. Providers update this record themselves, so call before visiting.
How can I verify Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC's license?
NPPES lists Illinois license number 209-007019, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC prescribe under Medicare Part D?
In 2024, Roxanne Jennifer Siemeck, APRN, CNS-BC, FNP-BC had 474 Medicare Part D claims for 52 beneficiaries; the average among clinical nurse specialist prescribers was 957. 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.