Kari Koster, R.N., A.P.R.N.
NPI 1952693731 · Psychiatric/Mental Health Nurse Practitioner · Harrisburg, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kari Koster, R.N., A.P.R.N. is a Psychiatric/Mental Health Nurse Practitioner provider in Harrisburg, IL (NPI 1952693731).
Provider details
- NPI number
- 1952693731
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N., A.P.R.N.
- Sex
- Female
- Sole proprietor
- No
- License
- 041380764 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 366 | 36 |
| Clonazepam | 165 | 25 |
| Quetiapine Fumarate | 147 | 12 |
| Aripiprazole | 144 | 19 |
| Buspirone Hcl | 143 | 18 |
| Trazodone Hcl | 139 | 22 |
| Duloxetine Hcl | 126 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,143 across 54 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-11
- Last updated
- 2020-02-10
- Certified
- 2020-02-10
Frequently asked questions
- What is Kari Koster's NPI number?
- Kari Koster's National Provider Identifier (NPI) is 1952693731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kari Koster's specialty?
- Kari Koster is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kari Koster located?
- Kari Koster's practice location on file with NPPES is 205 N Main St, Harrisburg, IL 62946-1256.
- What is Kari Koster's phone number?
- The practice phone number listed in the NPPES registry for Kari Koster is (630) 837-9000.
- Does Kari Koster accept Medicare?
- Kari Koster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kari Koster's NPI active?
- Yes — Kari Koster's NPI (1952693731) is active in the NPPES registry as of the last update on 2020-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.