Doctor profile · Federal record

Dr. Cassi Rainier

Family Nurse Practitioner (CMS: Nurse Practitioner) · Lancaster, OH

  • NPI 1659021467
  • Accepts Medicare
  • MIPS 70.2 / 100 · 2023
  • 4 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1781 Countryside Dr
Lancaster, OH 431301186
(740) 687-8600
fax (740) 475-0598

Credentials & registration

NPPES · NUCC
NPI registered
March 2022 — 4 yrs on file
Profile last updated
March 25, 2024
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Ohio #RN.400759

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659021467. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$268
Transactions
16
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 3 $51.73
Novo Nordisk Inc 3 $44.76
ABBVIE INC. 2 $40.16
Phathom Pharmaceuticals, Inc. 2 $34.33
Lilly USA, LLC 2 $32.69
AstraZeneca Pharmaceuticals LP 2 $28.23
Dexcom, Inc. 1 $20.40
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $15.62

By nature of payment

Food and Beverage
$268

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
13
Patients
13
Total drug cost
$42
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 13 13 $42

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Cassi Rainier's medical specialty?
Dr. Cassi Rainier practices Family Nurse Practitioner in Lancaster, OH.
Where does Dr. Cassi Rainier practice?
Dr. Cassi Rainier practices at 1781 Countryside Dr, Lancaster, OH 431301186. Office phone: 7406878600.
What is Dr. Cassi Rainier's NPI?
Dr. Cassi Rainier's National Provider Identifier (NPI) is 1659021467, issued by NPPES.
Does Dr. Cassi Rainier accept Medicare assignment?
Yes. Dr. Cassi Rainier accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.