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Marissa Ontis

Registered Nurse Clinic

Registered Nurse Alton, IL St Anthonys Health Center
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Reveal Contact Info

Marissa Ontis is a Registered Nurse Clinic specializing in Registered Nurse. Currently working at St Anthonys Health Center in Alton, IL. Registered Nurses provide direct patient care, administer medications, and coordinate with physicians across hospitals, clinics, and community health settings.

Overview
Level
Staff
Tenure
10 years at St Anthonys Health Center
Gender
Female
Connections
18
Position in NurseSend Database
  • 783,930 healthcare professionals in NurseSend hold the Registered Nurse specialty. Marissa Ontis is one of them.
  • 21,830 Registered Nurses are based in IL (out of 27,277 total healthcare contacts in that state).
  • 3 contacts at St Anthonys Health Center are tracked in NurseSend.
  • Typical Registered Nurse compensation in IL: $72,000 – $130,000 (median $86,000). Source: BLS OEWS adjusted for state cost of labor.
  • Data refreshed June 2026 · Compiled from NPI public registry, state nursing licensing boards, and verified public LinkedIn data. Methodology & sources.

Education
Chamberlain University
Master Of Science
2022
Southern Illinois University Edwardsville
Bachelor Of Science In Nursing
2018
Lewis And Clark Community College
2009
Skills
Nursing Critical Care Healthcare Hospitals Patient Safety Basic Life Support Advanced Cardiac Life Support
About St Anthonys Health Center
Industry
Hospital & Health Care
Employees
100 to 499
Revenue
$10M to <$50M

Recruiting Registered Nurse

Registered Nurses (RNs) are the backbone of patient care in hospitals, clinics, and community health settings. When recruiting an RN like Marissa Ontis, highlight shift flexibility, specialty unit opportunities, and sign-on bonuses. High-demand units include ICU, ER, and OR. NurseSend surfaces verified RN contacts filtered by specialty and location.

Frequently Asked Questions

Where is Marissa Ontis located?

Marissa Ontis is based in Alton, IL and is a Registered Nurse.

Where does Marissa Ontis work?

Marissa Ontis is currently at St Anthonys Health Center in Alton, IL.

How do I get Marissa Ontis's contact information?

NurseSend Pro members can access verified email, phone, and LinkedIn for Marissa Ontis. Subscribe to NurseSend to unlock direct contact information for this Registered Nurse Clinic.

How do I recruit Registered Nurse like Marissa Ontis?

To recruit Marissa Ontis, use NurseSend to access their verified email and phone number. Personalize your outreach with their specialty, current location, and relevant role details. NurseSend has 1M+ healthcare contacts searchable by specialty and location.

What is the average salary for a Registered Nurse in IL?

Registered Nurses in IL typically earn $72,000 to $130,000 annually, with a median of $86,000. Figures derive from BLS OEWS data, adjusted for state cost of labor. Senior-titled roles (Charge Nurse, Manager, Director) and high-acuity practice settings push the upper end.

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