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Marissa Ontis

Registered Nurse Clinic

Nurse Alton, IL St Anthonys Health Center
[email protected] linkedin.com/in/...
Reveal Contact Info
Overview
Level
Staff
Tenure
10 years at St Anthonys Health Center
Gender
Female
Connections
18
Position in HealthTal Database
  • 649,767 healthcare professionals in HealthTal hold the Nurse specialty. Marissa Ontis is one of them.
  • 18,103 Nurses are based in IL (out of 48,672 total healthcare contacts in that state).
  • 3 contacts at St Anthonys Health Center are tracked in HealthTal.
  • Typical Nurse compensation in IL: $110,000 – $165,000 (median $128,000). Source: BLS OEWS adjusted for state cost of labor.
  • Top employers of Nurses in IL: Advocate Health Care (584), Rush University Medical Center (435), Osf Healthcare (331).
  • 5% of Nurses in IL hold a senior title (Director, Manager, Chief, VP, etc.).
  • 72% of Nurses in IL have verified education credentials on file.
  • Data refreshed July 2026.

Public records & verifications
  • Verify against the NPPES Provider Registry (HHS / CMS). Search NPPES →
  • Professional LinkedIn profile on file (subscribers only).
  • Data aggregated from public licensure databases, LinkedIn, and verified employer records. Cross-check via the registry link above.
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
Professional Overview

Marissa Ontis is a Registered Nurse Clinic, currently affiliated with St Anthonys Health Center, based in Alton, IL. As a nurse, Ontis contributes to patient care, clinical workflows, and healthcare operations in Alton, IL. They have been with St Anthonys Health Center for 10 years. Ontis holds academic credentials, including Master Of Science and Bachelor Of Science In Nursing, from Chamberlain University and Southern Illinois University Edwardsville. Core competencies include Nursing, Critical Care, Healthcare, Hospitals, Patient Safety. St Anthonys Health Center operates in the Hospital & Health Care sector with a workforce of 100 to 499 employees. Healthcare organizations seeking to recruit nurse professionals can use HealthTal to access verified direct email addresses and personal phone numbers sourced from NPI records and professional licensing databases. Direct outreach to nurse specialists consistently yields higher response rates than passive job board postings, particularly for roles requiring specific clinical credentials or state licensure. The Alton, IL healthcare market offers access to a concentrated pool of clinical professionals, making direct outreach particularly effective for organizations building local care teams or expanding service capacity in the region.

Recruiting Nurse

Registered nurses are among the most in-demand healthcare professionals in the US. Recruiting RNs directly via personal contact data significantly reduces time-to-fill compared to job boards. When recruiting nurses, highlighting shift flexibility, signing bonuses, and professional development opportunities increases response rates.

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Frequently Asked Questions

Where is Marissa Ontis located?
Marissa Ontis is based in Alton, IL. They are currently affiliated with St Anthonys Health Center.
What is Marissa Ontis's specialty?
Marissa Ontis specializes in Nurse. Their current role is Registered Nurse Clinic.
Where does Marissa Ontis currently work?
Marissa Ontis currently works at St Anthonys Health Center. They have been there for 10 years.
What is Marissa Ontis's educational background?
Marissa Ontis attended Chamberlain University and Southern Illinois University Edwardsville.
How do I contact Marissa Ontis for recruiting?
HealthTal provides verified direct email address and phone number for Marissa Ontis. Subscribe to access full contact details including personal email, direct dial, and LinkedIn profile.
How do I recruit a Nurse?
Recruiting nurses typically involves reaching out via direct email or phone. HealthTal's database provides verified contact data for nurses across all 50 states, allowing you to contact candidates directly without going through job boards.
What is the average salary for a Nurse in IL?
Nurses in IL typically earn $110,000 to $165,000 annually, with a median of $128,000. Figures derive from BLS OEWS data, adjusted for state cost of labor. Senior-titled roles (Director, Manager, Chief) and high-acuity practice settings push the upper end.

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