Rachel Koster, PA-C
NPI 1437469830 · Physician Assistant · Chubbuck, ID
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel Koster, PA-C is a Physician Assistant provider in Chubbuck, ID (NPI 1437469830).
Provider details
- NPI number
- 1437469830
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA-867 (ID)
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 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 · 126 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 421 | 130 |
| Atorvastatin Calcium | 310 | 104 |
| Amlodipine Besylate | 209 | 70 |
| Rosuvastatin Calcium | 204 | 70 |
| Metformin Hcl | 170 | 61 |
| Losartan Potassium | 160 | 62 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$492 across 22 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
- 2010-10-19
- Last updated
- 2017-10-23
Frequently asked questions
- What is Rachel Koster's NPI number?
- Rachel Koster's National Provider Identifier (NPI) is 1437469830, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Koster's specialty?
- Rachel Koster is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rachel Koster located?
- Rachel Koster's practice location on file with NPPES is 4650 Hawthorne Road,, Chubbuck, ID 83202.
- What is Rachel Koster's phone number?
- The practice phone number listed in the NPPES registry for Rachel Koster is (208) 237-9833.
- Does Rachel Koster accept Medicare?
- Rachel Koster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel Koster's NPI active?
- Yes — Rachel Koster's NPI (1437469830) is active in the NPPES registry as of the last update on 2017-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.