Karen Vivian Jellen, N.P.
Family Nurse Practitioner · Chicago, IL
Karen Vivian 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 Vivian 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
- Record last updated
- Dec 22, 2025
- Fax
- (773) 866-8015
- Medicare enrollment
- Enrolled (PECOS I20040826001115); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
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 Vivian 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 1,305 among the 140,557 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.
Bills Medicare through one group practice
- Oak Street Health Physicians Group PCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Vivian Jellen among 7,639 family nurse practitioner records in Illinois
Karen Vivian Jellen, N.P. is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 95% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2003 · median 2018 among the 4,778 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,567 family nurse practitioner records list a practice address in Chicago
They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Chicago → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Khadra AljaziChicago, IL 606411427599265
- Jessica Antoni, APNChicago, IL 606411700276995
- Stacey Arackal, FNPChicago, IL 606411699422857
- Nancy Chavez, APRN, FNP-BCChicago, IL 606411649940982
- Karen CunninghamChicago, IL 606411609451251
- Roger John Golingan, FNPChicago, IL 606411487036752
- Bernadeta Kapustka, FNP NP-CChicago, IL 606411255898482
- Monica Lopez, FPA-APRNChicago, IL 606411952784605
Common questions
What is Karen Vivian Jellen, N.P.'s NPI number?
Karen Vivian 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 Vivian 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 Vivian 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 Vivian Jellen, N.P. prescribe under Medicare Part D?
In 2024, Karen Vivian Jellen, N.P. had 3,646 Medicare Part D claims for 108 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.