Karen Jellen, N.P.
NPI 1790868347 · Family Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Jellen, N.P. is a Family Nurse Practitioner provider in Chicago, IL (NPI 1790868347).
Provider details
- NPI number
- 1790868347
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 209005017 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 285 | 53 |
| Empagliflozinbrand: Jardiance | 243 | 40 |
| Amlodipine Besylate | 178 | 26 |
| Metoprolol Succinate | 122 | 24 |
| Lisinopril | 112 | 16 |
| Pantoprazole Sodium | 110 | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2025-12-22
- Certified
- 2025-12-22
Frequently asked questions
- What is Karen Jellen's NPI number?
- Karen Jellen's National Provider Identifier (NPI) is 1790868347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Jellen's specialty?
- Karen Jellen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Jellen located?
- Karen Jellen's practice location on file with NPPES is 4848 W Irving Park Rd, Chicago, IL 60641-2718.
- What is Karen Jellen's phone number?
- The practice phone number listed in the NPPES registry for Karen Jellen is (773) 866-8015.
- Does Karen Jellen accept Medicare?
- Karen Jellen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Jellen's NPI active?
- Yes — Karen Jellen's NPI (1790868347) is active in the NPPES registry as of the last update on 2025-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.