Summary
Overview
Work History
Education
Skills
Certification
Professional Affiliations And Leadership
Continuing Education And Professional Development
Timeline
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Tammy Holzer

Cedarburg,WI

Summary

Clinical Educator and Registered Nurse with 20+ years of experience in emergency care, toxicology, and professional education. Proven leader in designing, implementing, and evaluating clinical education programs for healthcare professionals and the public. Expertise in adult learning principles, competency-based education, clinical quality improvement, and interdisciplinary collaboration. Recognized for improving clinical outcomes, reducing error rates, and advancing evidence-based practice at local and national levels.

Overview

22
22
years of professional experience
1
1
Certification

Work History

Clinical Educator

CHILDREN’S WISCONSIN – Wisconsin Poison Center
04.2025 - Current
  • Design and deliver structured onboarding and orientation programs for new clinical staff, ensuring competency benchmarks and patient safety standards are met.
  • Develop and present continuing education programs for poison center phone staff, aligned with evidence-based practice and regulatory requirements.
  • Create and deliver educational presentations for physicians, nurses, and allied health professionals on poison prevention, toxic exposure management, and poison center utilization.
  • Lead community and professional outreach initiatives targeting high-risk populations identified through data analysis.
  • Collaborate with interdisciplinary teams to support clinical excellence, staff development, and quality improvement initiatives.
  • Planned, submitted, and moderated four clinical symposia at the North American Congress of Clinical Toxicology (NACCT).
  • Coauthored and presented a clinical research abstract on group home medication errors at NACCT 2025; submitted for publication with the Wisconsin Chapter of the American College of Emergency Physicians.
  • Elected member of the Children’s Wisconsin REACH (Recognizing Excellence and Achievements) committee.

Certified Specialist in Poison Information (CSPI)

CHILDREN’S WISCONSIN – Wisconsin Poison Center
11.2016 - Current
  • Provide real-time emergency toxicology consultation and treatment recommendations to the public and healthcare professionals.
  • Perform clinical triage to determine the appropriate level of care, including home management or referral to healthcare facilities.
  • Manage complex poisoning cases in collaboration with board-certified medical toxicologists.
  • Maintain detailed, accurate clinical documentation including exposure data, laboratory values, and treatment outcomes.
  • Achieved board certification through America’s Poison Centers (2019).
  • Awarded REACH GOLD-level recognition for nursing excellence five times.
  • Coauthored and presented research on carbon monoxide exposure and hearing loss at NACCT 2022.
  • Developed and launched a structured mentorship program; successfully mentored five new employees during their first year.
  • Reduced charting and coding errors from >40% to

Registered Nurse – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
10.2014 - 06.2016
  • Delivered high-acuity emergency care for trauma and non-trauma patients.
  • Performed patient assessments, medication administration, IV therapy, cardiac monitoring, and emergency procedures.
  • Educated patients and families on diagnoses, treatment plans, and discharge instructions.

Clinical Nurse Educator – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2015 - 07.2015
  • Planned, developed, and delivered clinical education programs to support competency development of emergency department staff.
  • Evaluated educational effectiveness using learner outcomes and evidence-based practice metrics.
  • Partnered with interdisciplinary teams for strategic planning and departmental education initiatives.
  • Managed all educational activities to ensure alignment with organizational mission, vision, and goals.

Registered Nurse – Internal Medicine/Pediatrics/Triage

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2012 - 10.2014
  • Conducted in-person and telephone triage, coordinated care, and escalated patients to higher levels of care as indicated.
  • Provided patient and family education tailored to diagnosis and care plans.

Registered Nurse – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
11.2006 - 12.2012
  • Delivered high-acuity emergency care for trauma and non-trauma patients.
  • Performed patient assessments, medication administration, IV therapy, cardiac monitoring, and emergency procedures.
  • Educated patients and families on diagnoses, treatment plans, and discharge instructions.

Childbirth Educator

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2004 - 07.2007
  • Delivered childbirth and newborn care education to groups of 20–40 participants.
  • Designed and presented multimedia educational content.

Registered Nurse – Pediatrics/NICU

COLUMBIA ST. MARY’S HEALTH SYSTEM
05.2004 - 11.2006
  • Delivered comprehensive nursing care to neonatal and pediatric patients in acute and critical care settings.
  • Served as unit team leader when assigned.

Education

Associate Degree - Nursing

Cardinal Stritch University
Milwaukee, WI

Bachelor of Science - Education

University of Wisconsin–Whitewater
Whitewater, WI

Skills

  • Clinical Education & Training
  • Adult Learning Theory
  • Curriculum Development
  • Competency Assessment
  • Continuing Education (CE) Programs
  • Orientation & Onboarding
  • Clinical Quality Improvement
  • Evidence-Based Practice
  • Toxicology & Poison Information
  • Interdisciplinary Collaboration
  • Public & Professional Speaking
  • Data-Driven Outreach
  • Mentorship & Coaching
  • Regulatory & Accreditation Standards
  • Clinical Documentation

Certification

  • Registered Nurse, Wisconsin, Active
  • Certified Specialist in Poison Information (CSPI)
  • American Heart Association Basic Life Support (BLS)

Professional Affiliations And Leadership

  • America’s Poison Centers, SPI Advisory Council Chair, 2026–Present
  • America’s Poison Centers, SPI Advisory Council Jr. Chair, 2025
  • America’s Poison Centers, SPI Advisory Council Member, 2024–2025

Continuing Education And Professional Development

  • Advanced, Intermediate & Introductory Grant Writing, University of Wisconsin–Milwaukee, 2024
  • Coaching for Success & Developing Successful Coaching Relationships, Children’s Wisconsin, 2025
  • Total Tox Course, American College of Medical Toxicology, 2025

Timeline

Clinical Educator

CHILDREN’S WISCONSIN – Wisconsin Poison Center
04.2025 - Current

Certified Specialist in Poison Information (CSPI)

CHILDREN’S WISCONSIN – Wisconsin Poison Center
11.2016 - Current

Clinical Nurse Educator – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2015 - 07.2015

Registered Nurse – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
10.2014 - 06.2016

Registered Nurse – Internal Medicine/Pediatrics/Triage

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2012 - 10.2014

Registered Nurse – Emergency Department

COLUMBIA ST. MARY’S HEALTH SYSTEM
11.2006 - 12.2012

Registered Nurse – Pediatrics/NICU

COLUMBIA ST. MARY’S HEALTH SYSTEM
05.2004 - 11.2006

Childbirth Educator

COLUMBIA ST. MARY’S HEALTH SYSTEM
01.2004 - 07.2007

Bachelor of Science - Education

University of Wisconsin–Whitewater

Associate Degree - Nursing

Cardinal Stritch University