Kari Nicole Koster, R.N., A.P.R.N.
Psychiatric/Mental Health Nurse Practitioner · Harrisburg, IL
Kari Nicole Koster, R.N., A.P.R.N. is a psychiatric/mental health nurse practitioner with a practice address in Harrisburg, Illinois, and NPI 1952693731, issued on May 11, 2011. Check the license (Illinois 277000492, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kari Nicole Koster
- Credential
- R.N., A.P.R.N.
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 277000492 IL
041380764 IL
209012601 IL
Self-reported in NPPES; status is on the state search - Practice location
- 205 N Main St, Harrisburg, IL 62946
- Phone
- (630) 837-9000
- Enumerated
- May 11, 2011
- Record last updated
- Feb 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (630) 837-2639
- Medicare enrollment
- Enrolled (PECOS I20161031000033); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2014
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,530 in Illinois → Look up another NPI →
Also registered at 205 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Bebout, PACPhysician Assistant1740298280
- Randall Bell, DMDGeneral Practice Dentistry1093775652
- Melodi Ewing, MDFamily Medicine Physician1780643338
- Jacqueline Lewis, PHDHDental Hygienist1891416863
- Pennie Smith, PAPhysician Assistant1194732271
- James Tucka, LCSWClinical Social Worker1205154028
Verify Kari Nicole Koster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 277000492Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
3,403 Medicare Part D claims for 118 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Alprazolam366 claims
- Clonazepam165 claims
- Quetiapine Fumarate147 claims
- Aripiprazole144 claims
- Buspirone Hcl143 claims
- Trazodone Hcl139 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.
Industry payments in 2024: $1,143.43
54 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Community Health And Emergency Services IncHarrisburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kari Nicole Koster among 1,530 psychiatric/mental health nurse practitioner records in Illinois
Kari Nicole Koster, R.N., A.P.R.N. is one of 1,530 psychiatric/mental health nurse practitioner records with a practice address in Illinois. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 7% of them.
- NPI issued2011 · 7% of these records are older, 91% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2014 · median 2021 among the 917 with a school on file
- Record last updated2020 · 17% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 psychiatric/mental health nurse practitioner records list a practice address in Harrisburg
They are 3 of the 194 NPPES records with a practice address in Harrisburg, and 1,530 psychiatric/mental health nurse practitioner records in Illinois.
All 1,530 in Illinois → Every provider in Harrisburg → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Jessica Jackson, MSN, APRN, PMHNPHarrisburg, IL 629461871120600
- Amy Stevens, NPHarrisburg, IL 629461932919073
- Leslie Jones, N.P. - CHerrin, IL 629481982070942
- Rebecca Sloan, NPJohnston City, IL 629511770812976
- Alexandria Brown, APRNMarion, IL 629591124780929
- Kasey Khan, APNMarion, IL 629591093206856
- Lisa Lyell, APNMarion, IL 629591164719738
- Crystal McCabe, NPMarion, IL 629591780538389
Common questions
What is Kari Nicole Koster, R.N., A.P.R.N.'s NPI number?
Kari Nicole Koster, R.N., A.P.R.N.'s National Provider Identifier (NPI) is 1952693731, issued on May 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kari Nicole Koster, R.N., A.P.R.N. located?
The NPPES record lists a practice address at 205 N Main St, Harrisburg, IL, 62946. Phone: (630) 837-9000. Providers update this record themselves, so call before visiting.
How can I verify Kari Nicole Koster, R.N., A.P.R.N.'s license?
NPPES lists Illinois license number 277000492, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Kari Nicole Koster, R.N., A.P.R.N. prescribe under Medicare Part D?
In 2024, Kari Nicole Koster, R.N., A.P.R.N. had 3,403 Medicare Part D claims for 118 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.