Kathy Marren, GNP
Gerontology Nurse Practitioner · Champaign, IL
Kathy Marren, GNP is a gerontology nurse practitioner with a practice address in Champaign, Illinois, and NPI 1568430379, issued on Mar 8, 2006. Check the license (Illinois 041362173, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathy Marren
- Credential
- GNP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License numbers
- 041362173 IL
083575 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1801 Windsor RD, Champaign, IL 61822
- Phone
- (217) 366-5434
- Enumerated
- Mar 8, 2006
- Record last updated
- Sep 2, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (217) 366-6106
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 292 in Illinois → Look up another NPI →
Also registered at 1801 Windsor RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathy Marren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 041362173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average gerontology nurse practitioner in 2024
1,894 Medicare Part D claims for 109 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. 150 claims were for opioids.
Most prescribed
- Levothyroxine Sodium116 claims
- Hydrocodone-Acetaminophen92 claims
- Eliquis81 claims
- Furosemide69 claims
- Gabapentin61 claims
- Atorvastatin Calcium59 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.
Kathy Marren among 292 gerontology nurse practitioner records in Illinois
Kathy Marren, GNP is one of 292 gerontology nurse practitioner records with a practice address in Illinois. 80% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2011 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Illinois
There are 292 gerontology nurse practitioner records in Illinois.
All 292 in Illinois → Every provider in Champaign → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Omolara AyodeleDanville, IL 618321831582030
- Rosemarie Eck, APNDanville, IL 618321518361682
- Katie Wilson, AGACNP-BCDanville, IL 618321073031100
- Kelly Erke, APRNDanville, IL 618341891358222
- Amy O'Dell, NPUrbana, IL 618021043736788
- Romil Patel, NPUrbana, IL 618021376002816
- Taryn Rawdin, NPUrbana, IL 618021528617560
- Lori Moton, AGPCNP-BCUrbana, IL 618011154878098
Common questions
What is Kathy Marren, GNP's NPI number?
Kathy Marren, GNP's National Provider Identifier (NPI) is 1568430379, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Marren, GNP located?
The NPPES record lists a practice address at 1801 Windsor RD, Champaign, IL, 61822. Phone: (217) 366-5434. Providers update this record themselves, so call before visiting.
How can I verify Kathy Marren, GNP's license?
NPPES lists Illinois license number 041362173, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Kathy Marren, GNP prescribe under Medicare Part D?
In 2024, Kathy Marren, GNP had 1,894 Medicare Part D claims for 109 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.