Doctor profile · Federal record

Dr. Rachel Koster, PA-C

Physician Assistant · Chubbuck, ID

  • NPI 1437469830
  • Accepts Medicare
  • MIPS 72.4 / 100 · 2023
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4650 Hawthorne Road,, Suite 3B
Chubbuck, ID 83202
(208) 237-9833
Mailing address
2255 E Mossy Oaks RD, Ste 500
Spring, TX 773891813

Credentials & registration

NPPES · NUCC
NPI registered
October 2010 — 16 yrs on file
Profile last updated
October 23, 2017
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Idaho #PA-867

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437469830. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$492
Transactions
22
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 7 $190.21
Lilly USA, LLC 4 $75.72
Pfizer INC. 3 $63.20
Astellas Pharma US INC 2 $53.17
Novo Nordisk INC 2 $30.40
Boehringer Ingelheim Pharmaceuticals, INC. 1 $29.23
Abbvie INC. 1 $20.04
GlaxoSmithKline, LLC. 1 $16.23
Amgen INC. 1 $14.19

By nature of payment

Food and Beverage
$492

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,162
Patients
754
Total drug cost
$30,448
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 371 101 $5,064
Atorvastatin Calcium Generic 259 83 $3,393
Rosuvastatin Calcium Generic 186 61 $4,965
Amlodipine Besylate Generic 167 50 $1,334
Metformin Hcl Generic 149 49 $1,794
Losartan Potassium Generic 124 51 $1,511
Lisinopril Generic 120 32 $1,228
Gabapentin Generic 109 55 $2,279
Hydrochlorothiazide Generic 103 43 $519
Montelukast Sodium Generic 100 34 $1,477

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Rachel Koster's medical specialty?
Dr. Rachel Koster practices Physician Assistant in Chubbuck, ID.
Where does Dr. Rachel Koster practice?
Dr. Rachel Koster practices at 4650 Hawthorne Road,, Chubbuck, ID 83202. Office phone: 2082379833.
What is Dr. Rachel Koster's NPI?
Dr. Rachel Koster's National Provider Identifier (NPI) is 1437469830, issued by NPPES.
Does Dr. Rachel Koster accept Medicare assignment?
Yes. Dr. Rachel Koster accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.