Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Cassi Niccole Rainier

Nurse Practitioner - Family โ€ข Lancaster, OH

Active NPI 1659021467 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1781 Countryside Dr
Lancaster, OH 431301186

Call 7406878600 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1781 Countryside Dr

Lancaster, OH 431301186

Telephone 7406878600
Fax 7404750598
Organization at the Same NPPES Address or Phone
Fairfield Medical Associates, Llc Facility NPI 1740317981

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Central Ohio Primary Care Physicians, Inc.. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2022

Medicare patients

110 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $13,651 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $11,018 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

513 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$14,570 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $1,333.84 across 76 records.

By nature of payment

  • Food and Beverage: $1,333.84 across 76 records.

Reporting-company totals (3 largest of 24)

  • Pfizer Inc.: $209.45 across 12 records.
  • Novo Nordisk Inc: $190.72 across 14 records.
  • AstraZeneca Pharmaceuticals LP: $175.14 across 7 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

4 years (graduated 2022)

CMS Doctors and Clinicians data list 2022 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Cassi Rainier has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Cassi Rainier as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Lancaster and Ohio

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Nurse Practitioner - Family in Lancaster, OH (2024, 32 clinicians with data). Median for this group: 227. Middle half: 103 to 419.

Close to the middle for clinicians listed under Nurse Practitioner - Family in Ohio (2024, 5,011 clinicians with data). Median for this group: 221. Middle half: 93 to 446.

Medicare-allowed amount

Close to the middle for clinicians listed under Nurse Practitioner - Family in Lancaster, OH (2024, 32 clinicians with data). Median for this group: $13,914. Middle half: $9,412 to $40,069.

Close to the middle for clinicians listed under Nurse Practitioner - Family in Ohio (2024, 5,011 clinicians with data). Median for this group: $15,459. Middle half: $6,744 to $29,892.

Paid by Medicare

Close to the middle for clinicians listed under Nurse Practitioner - Family in Lancaster, OH (2024, 32 clinicians with data). Median for this group: $10,659. Middle half: $7,377 to $29,906.

Close to the middle for clinicians listed under Nurse Practitioner - Family in Ohio (2024, 5,011 clinicians with data). Median for this group: $11,036. Middle half: $4,831 to $21,936.

Medicare Part D prescriptions

Fewer Part D prescriptions than 65% of clinicians listed under Nurse Practitioner - Family in Lancaster, OH (2024, 33 clinicians with data). Median for this group: 605. Middle half: 143 to 2,548.

Close to the middle for clinicians listed under Nurse Practitioner - Family in Ohio (2024, 5,624 clinicians with data). Median for this group: 422. Middle half: 107 to 1,892.

Part D drug cost

Close to the middle for clinicians listed under Nurse Practitioner - Family in Lancaster, OH (2024, 33 clinicians with data). Median for this group: $38,771. Middle half: $2,657 to $229,688.

Close to the middle for clinicians listed under Nurse Practitioner - Family in Ohio (2024, 5,624 clinicians with data). Median for this group: $19,066. Middle half: $1,221 to $159,046.

54 active clinicians are listed under Nurse Practitioner - Family with a practice address in Lancaster, OH (9,655 in Ohio).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Lancaster

13% of these 54 clinicians have the CMS telehealth indicator.

68.5% of these 54 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 76 records totaling $1,333.84.

Manufacturer Payment Nature Product Type Amount ($)
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
FARXIGA General $69.69
Otsuka America Pharmaceutical, Inc.
Food and Beverage
In-kind items and services
REXULTI General $32.10
Pfizer Inc.
Food and Beverage
In-kind items and services
NURTEC ODT General $27.77
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $26.44
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
BREZTRI General $25.87
Verona Pharma, Inc.
Food and Beverage
Cash or cash equivalent
Ohtuvayre General $25.80
Pfizer Inc.
Food and Beverage
In-kind items and services
ELIQUIS General $25.20
Dexcom, Inc.
Food and Beverage
In-kind items and services
Dexcom G6 Transmitter General $24.71
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $23.77
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $23.30
Exact Sciences Corporation
Food and Beverage
In-kind items and services
Cologuard Collection Kit General $23.12
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $22.55
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
AREXVY General $21.97
Pfizer Inc.
Food and Beverage
In-kind items and services
ELIQUIS General $21.53
VERTEX PHARMACEUTICALS INCORPORATED
Food and Beverage
In-kind items and services
JOURNAVX General $21.50
Xeris Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
GVOKE HYPOPEN General $21.34
Pfizer Inc.
Food and Beverage
In-kind items and services
ELIQUIS General $21.00
Pfizer Inc.
Food and Beverage
In-kind items and services
NURTEC ODT General $20.99
Exact Sciences Corporation
Food and Beverage
In-kind items and services
Cologuard Collection Kit General $20.53
Pfizer Inc.
Food and Beverage
In-kind items and services
VYNDAQEL General $19.83
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $19.72
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $19.71
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $19.46
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Symbravo General $19.29
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Auvelity General $18.78

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
69 64 $170.00 $103.08
36415 Insertion of needle into vein for collection of blood sample
40 35 $13.00 $8.65
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
32 27 $120.00 $72.84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
23 23 $189.35 $103.95
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
22 22 $16.00 $7.61
80053 Blood test, comprehensive group of blood chemicals
17 17 $25.00 $10.35
82306 Vitamin d-3 level
16 16 $70.00 $29.01
81002 Urinalysis, manual test
13 13 $9.00 $3.41
87088 Bacterial urine culture
13 13 $22.00 $7.93
84443 Blood test, thyroid stimulating hormone (tsh)
11 11 $35.00 $16.46
G0008 Administration of influenza virus vaccine
11 11 $45.00 $30.39

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Prednisone Prednisone 37 376 $66.43 34
Levothyroxine Sodium Levothyroxine Sodium 31 2,232 $176.08 23
Fluticasone Propionate Fluticasone Propionate 22 1,020 $210.39 20
Amlodipine Besylate Amlodipine Besylate 21 1,650 $106.32 15
Omeprazole Omeprazole 20 1,800 $196.25 18
Gabapentin Gabapentin 19 1,007 $225.00 16
Alprazolam Alprazolam 18 477 $67.36 16
Atorvastatin Calcium Atorvastatin Calcium 17 1,530 $288.33 17
Cyclobenzaprine Hcl Cyclobenzaprine Hcl 16 155 $20.93 12
Tramadol Hcl Tramadol Hcl 15 316 $84.39 โ€”
Doxycycline Monohydrate Doxycycline Monohydrate 14 136 $181.48 14
Lisinopril Lisinopril 13 870 $55.90 โ€”
Ozempic Semaglutide 12 406 $12,552.90 โ€”
Azithromycin Azithromycin 11 55 $36.55 โ€”
Furosemide Furosemide 11 504 $14.71 โ€”
Duloxetine Hcl Duloxetine Hcl 11 840 $287.27 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-03-25
Nurse Practitioner - Family Primary Specialty

NUCC Taxonomy Code: 363LF0000X

License # reported to NPPES OH RN.400759
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: State Medical Board of Ohio.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20220919002215

Enrollment State Jurisdiction

OH

PECOS Control ID

0941685572

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Central Ohio Primary Care Physicians, Inc.

1781 Countryside Dr, Lancaster, OH 431301186

Phone: 7406878600

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

3 listed
Dr. Sarah Alley , MD

Family Medicine

NPI 1902882095

Doctor of Medicine (M.D.)

NPI 1164408258

Doctor of Medicine (M.D.)

Michele Messerly , CNP

Nurse Practitioner - Family

NPI 1447715081

Certified Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
๐Ÿ“
Updated Practice Location March 25, 2024

Registered at 1781 COUNTRYSIDE DR, LANCASTER, OH 431301186 (Tel: 7406878600)

๐Ÿ“
Updated Business Mailing Address March 25, 2024

Registered at 1781 COUNTRYSIDE DR, LANCASTER, OH 431301186 (Tel: 7406878600)

โœ…
NPI Profile Active March 25, 2022

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) March 25, 2022

Registered at 6675 WESTFALL RD SW, LANCASTER, OH 431309218 (Tel: 7407778793)

๐Ÿ“
Business Mailing Address (Initial Record) March 25, 2022

Registered at 6675 WESTFALL RD SW, LANCASTER, OH 431309218 (Tel: 7407778793)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) March 25, 2022

Recorded as CASSI RAINIER

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 25, 2022

Nurse Practitioner (license number reported to NPPES: OH RN.400759)

๐ŸŸข
Initial NPI Registration & Enumeration March 25, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1659021467
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 25, 2022
Last Update: March 25, 2024
Sole Proprietor: No

Other Nurse Practitioner - Family Specialists in Lancaster

All Nurse Practitioner - Family Specialists in Lancaster

Mailing Address

1781 Countryside Dr

Lancaster, OH 431301186

Phone: 7406878600

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.