NPPES file of Aug 9, 2026

Andrea Frances Merkler, APN, CDE

Clinical Nurse Specialist · Oak Lawn, IL

Andrea Frances Merkler, APN, CDE is a clinical nurse specialist with a practice address in Oak Lawn, Illinois, and NPI 1477613073, issued on Dec 12, 2006. Check the license (Illinois 209-001607, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477613073
Name
Andrea Frances Merkler
Credential
APN, CDE
Primary taxonomy
Clinical Nurse Specialist 364S00000X
License numbers
209-001607 IL
209001607 IL
Self-reported in NPPES; status is on the state search
Practice location
4440 W 95TH St, Oak Lawn, IL 60453
Phone
(708) 684-1678
Enumerated
Dec 12, 2006
Record last updated
Nov 13, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(708) 684-3371
Medicare enrollment
Enrolled (PECOS I20150109000575); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 4440 W 95TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
  2. Akram Abdoue, M.D.Anesthesiology Physician1992752489
  3. Ahmad Abdulla, MDEmergency Medicine Physician1467202556
  4. Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
  5. Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
  6. Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663

Verify Andrea Frances Merkler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209-001607
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

99% fewer Medicare Part D claims than the average clinical nurse specialist in 2024

13 Medicare Part D claims, against an average of 957 among the 361 providers of this specialty who prescribed in Part D.

  1. Andrea Merkler13
  2. Specialty average957

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

  1. 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).

Andrea Frances Merkler among 162 clinical nurse specialist records in Illinois

Andrea Frances Merkler, APN, CDE 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% newer
  • In a Medicare fileYes · 51% of these records are
  • In the CMS Doctors and Clinicians fileYes · 30% of these records are
  • Graduated1989 · median 2008 among the 48 with a school on file
  • Record last updated2017 · 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.

The 8 clinical nurse specialist records with the nearest ZIP codes

  1. Tom Blicharski, APNOak Lawn, IL 604531033460381
  2. Natalie Cates-Rudolph, APN/CNSOak Lawn, IL 604531336480359
  3. Maureen McCafferty, RN, APNOak Lawn, IL 604531669465480
  4. Renea McKeown, APN-BCOak Lawn, IL 604531720332125
  5. Maria Nilsson, M.S.N, A.P.N-BCOak Lawn, IL 604531881927457
  6. Judith Parker, R.N.Oak Lawn, IL 604531154410504
  7. Anne Gillian Roska, CNSOak Lawn, IL 604531548637804
  8. Roxanne Siemeck, APRN, CNS-BC, FNP-BCOak Lawn, IL 604531972774560

Common questions

What is Andrea Frances Merkler, APN, CDE's NPI number?

Andrea Frances Merkler, APN, CDE's National Provider Identifier (NPI) is 1477613073, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Frances Merkler, APN, CDE located?

The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-1678. Providers update this record themselves, so call before visiting.

How can I verify Andrea Frances Merkler, APN, CDE's license?

NPPES lists Illinois license number 209-001607, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Andrea Frances Merkler, APN, CDE prescribe under Medicare Part D?

In 2024, Andrea Frances Merkler, APN, CDE had 13 Medicare Part D claims; 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.