NPPES file of Aug 9, 2026

Karen Marie Deem, APN

Family Nurse Practitioner · Belleville, IL

Karen Marie Deem, APN is a family nurse practitioner with a practice address in Belleville, Illinois, and NPI 1740626845, issued on May 15, 2013. Check the license (Illinois 209003852, 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
1740626845
Name
Karen Marie Deem
Credential
APN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209003852 IL
Self-reported in NPPES; status is on the state search
Practice location
211 S 3RD St, Belleville, IL 62220
Phone
(618) 234-2120
Enumerated
May 15, 2013
Record last updated
May 15, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20250814002276); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1998
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.
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Also registered at 211 S 3RD St

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

  1. Jan Axelbaum, MDHospitalist Physician1356581730
  2. Lynlee Barnhart, NPNurse Practitioner1417326430
  3. Neil Belanger, CRNAPain Management Registered Nurse1922037340
  4. Yashaswi Belvadi, MDCritical Care Medicine (Internal Medicine) Physician1104075035
  5. Pamela Brezger, M.S. CCC-SLPSpeech-Language Pathologist1356469597
  6. Akhil Chapagain, M.D.Hospitalist Physician1346525235

Verify Karen Marie Deem 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 209003852    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.

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85% fewer Medicare Part D claims than the average family nurse practitioner in 2024

191 Medicare Part D claims for 121 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Karen Deem191
  2. Specialty average1,305

Most prescribed

  1. Prednisone38 claims
  2. Azithromycin20 claims
  3. Amoxicillin16 claims
  4. Nitrofurantoin Mono-Macro14 claims
  5. Cephalexin13 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.

Bills Medicare through one group practice

  1. Clallam County Public Hospital District NO 1Forks, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

41 family nurse practitioner records list a practice address in Belleville

They are 41 of the 1,404 NPPES records with a practice address in Belleville, and 7,639 family nurse practitioner records in Illinois.

All 41 in Belleville → All 7,639 in Illinois → Every provider in Belleville →

Other family nurse practitioner records in Illinois

  1. Crystal Aandahl, FNPNorth Chicago, IL1316497068
  2. Deborah Aaron, FNPChicago, IL1114024916
  3. Roseviminda Abano, CNPGurnee, IL1215318555
  4. Theresa AbbaduskyPekin, IL1265892046
  5. Nadia Abbasi-Kling, FNP-BCChicago, IL1033767736
  6. Manar Abdalla, FNPChicago, IL1700632411
  7. Mahubah Abdallah, FNP-CRochelle, IL1841752284
  8. Rana Abdallah, DNP, APRN, FNP-CLake Villa, IL1851261887
  9. Servet Abdelhafez, APRNBrookfield, IL1790505048
  10. Nadia Abdessalam, FNP-BCOak Lawn, IL1356888283

Common questions

What is Karen Marie Deem, APN's NPI number?

Karen Marie Deem, APN's National Provider Identifier (NPI) is 1740626845, issued on May 15, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Karen Marie Deem, APN located?

The NPPES record lists a practice address at 211 S 3RD St, Belleville, IL, 62220. Phone: (618) 234-2120. Providers update this record themselves, so call before visiting.

How can I verify Karen Marie Deem, APN's license?

NPPES lists Illinois license number 209003852, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Karen Marie Deem, APN prescribe under Medicare Part D?

In 2024, Karen Marie Deem, APN had 191 Medicare Part D claims for 121 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.