Cassi Rainier
NPI 1659021467 · Family Nurse Practitioner · Lancaster, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassi Rainier is a Family Nurse Practitioner provider in Lancaster, OH (NPI 1659021467).
Provider details
- NPI number
- 1659021467
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- RN.400759 (OH)
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 tenure25% of score
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
267 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $103 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 40 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $73 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 23 | $104 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 22 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 37 | 34 |
| Levothyroxine Sodium | 31 | 23 |
| Fluticasone Propionate | 22 | 20 |
| Amlodipine Besylate | 21 | 15 |
| Omeprazole | 20 | 18 |
| Gabapentin | 19 | 16 |
| Alprazolam | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$268 across 16 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
- 2022-03-25
- Last updated
- 2024-03-25
- Certified
- 2024-03-25
Frequently asked questions
- What is Cassi Rainier's NPI number?
- Cassi Rainier's National Provider Identifier (NPI) is 1659021467, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassi Rainier's specialty?
- Cassi Rainier is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassi Rainier located?
- Cassi Rainier's practice location on file with NPPES is 1781 Countryside Dr, Lancaster, OH 43130-1186.
- What is Cassi Rainier's phone number?
- The practice phone number listed in the NPPES registry for Cassi Rainier is (740) 687-8600.
- Does Cassi Rainier accept Medicare?
- Cassi Rainier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassi Rainier's NPI active?
- Yes — Cassi Rainier's NPI (1659021467) is active in the NPPES registry as of the last update on 2024-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.