Karen Jellen, N.P.
Family Nurse Practitioner · Chicago, IL
Karen Jellen, N.P. is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1790868347, issued on Oct 24, 2006. Check the license (Illinois 209005017, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Jellen
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209005017 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4848 W Irving Park RD, Chicago, IL 60641
- Phone
- (773) 866-8015
- Enumerated
- Oct 24, 2006
- Entity
- Type 1 · individual
Also registered at 4848 W Irving Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Antoni, APNFamily Nurse Practitioner1700276995
- Gabriela Ferrera, M.D.Internal Medicine Physician1992002711
- Shira Lerner, MDFamily Medicine Physician1609226869
- Rebecca Levine, M.D.Family Medicine Physician1841553294
- Daphne Martin, LCSWClinical Social Worker1801637020
- Rusalina Muntean-Mincu, MDInternal Medicine Physician1295782431
Verify Karen Jellen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209005017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.8 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,646 Medicare Part D claims for 108 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 16 claims were for opioids.
Most prescribed
- Atorvastatin Calcium285 claims
- Jardiance243 claims
- Amlodipine Besylate178 claims
- Metoprolol Succinate122 claims
- Lisinopril112 claims
- Pantoprazole Sodium110 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.
One hospital or facility affiliation
- Oak Street Health Physicians Group PCChicago, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1,479 family nurse practitioner records list a Chicago practice address
They are 1,479 of the 63,379 NPPES records with a Chicago practice address, and 7,207 family nurse practitioner records in Illinois.
All 1,479 in Chicago → All 7,207 in Illinois → Every provider in Chicago →
Other family nurse practitioner records in Illinois
- Deborah Aaron, FNPChicago, IL1114024916
- Lawrence Abah, APNAurora, IL1306305115
- 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
- Saima Abdul Karim, FNP-BCCoal City, IL1629498753
Common questions
What is Karen Jellen, N.P.'s NPI number?
Karen Jellen, N.P.'s National Provider Identifier (NPI) is 1790868347, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Jellen, N.P. located?
The NPPES record lists a practice address at 4848 W Irving Park RD, Chicago, IL, 60641. Phone: (773) 866-8015. Providers update this record themselves, so call before visiting.
How can I verify Karen Jellen, N.P.'s license?
NPPES lists Illinois license number 209005017, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Jellen, N.P. prescribe under Medicare Part D?
In 2024, Karen Jellen, N.P. had 3,646 Medicare Part D claims for 108 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.