Compassionate, credentialed, and dedicated — our clinical team brings expertise and heart to every individual we serve.
Our People
Meet the Faces Behind the Care

Katie Check
MS
VP of Clinical Services – MN & WI
About
The behavioral health field found Katie about 15 years ago, and she has dedicated her career to making a meaningful impact on people’s lives. She loves empowering her clinical team and is passionate about the work Beacon does for the individuals it serves.
“I love being able to share my love with my team and empower my clinicians to do the great work that we do. The work we do here is incredible — I can’t wait to see where Beacon goes!”

Megan Hoffman
RN BSN, PHN
Registered Nurse
Education
- BSN & PHN — Saint Catherine’s University
- Graduate student, Psychiatric Nurse Practitioner program (in progress)
Clinical Experience
- Charge nurse on a cardiac unit
- Elderly psychiatric acute care unit
- Travel nursing
“Psychiatric nursing has always been my calling and passion. I love working with the Beacon population in my local community and getting to know them individually. Outside of work I love to read, watch horror movies and go for long walks with my golden retriever, Moose!”

Matt Kaszas
RN
Registered Nurse
Education & Credentials
- ADN — Rasmussen School of Nursing (2018)
- Registered Nurse, State of Minnesota
- 8 years U.S. Army Infantry prior to nursing
Areas of Expertise
- Behavioral health support & crisis intervention
- Medication administration and monitoring
- Person-centered care planning
- Trauma-informed care
- Long-term, medical/surgical, hospice & nursing management
“What I find most meaningful is building real trust with the people I engage with — being someone they can rely on day in and day out. Seeing the small wins add up over time, whether that’s better routines, fewer rough moments, or more independence and joy — that’s everything.”

Kelli Christiana
LPN
Licensed Practical Nurse
Education & Credentials
- Practical Nursing — Central Susquehanna LPN Career Center
- AAS — Eastern Gateway Community College
- CPR, PA Train the Trainer, NIOSH Spirometry, TeamSTEPPS certified
Clinical Experience
- 20 years of nursing experience
- Gastroenterology, geriatrics, home health, behavioral health, hospice
- Hepatitis C educator/manager, nurse navigation, IDD
- Specialty in Hep C treatment and gastroenterology
“I have always looked at each individual with a holistic approach — everyone is unique. I love advocating for the individuals we serve so that they can receive the best quality care they deserve.”

Shanna Griffin
ABA
Behavior Specialist
Education
- Graduate Certificate in ABA — UMass Global (2022)
- MS in Healthcare Administration — Franklin University (2015)
- BS in Healthcare Management — Franklin University (2006)
- AAS in Human Services — North Central Missouri College (2004)
Experience & Expertise
- 15 years in mental health clinic (supervisor 2018–2025)
- ABA clinic and in-home services — preschool through adult populations
- Department of corrections and ISL adults
- ACT therapy · ABA adult population specialist
“The most fulfilling part of ABA work is watching individuals show pride in the progress they were able to make to improve functions of daily living.”

Sara Fiddelke
RBT
Behavior Specialist
Education & Credentials
- BS in Psychology (Clinical Counseling) — Regent University
- MS in General Psychology — Regent University
- Graduate Certificate in ABA — Walden University (in progress)
- Registered Behavior Technician (RBT) · Trauma-Informed Care certified · Crisis Intervention trained
Experience
- 4 years in ABA · 12 years in mental health · 11 years as a CNA
- Memory care and locked units, clinic and home-based ABA (ages 2–21)
- Habilitation center (ages 18–65+), parent training
- Expertise in crisis intervention, positive behavior supports & trauma-informed care
“My journey began as a parent who saw firsthand how ABA helped my own children. That experience inspired me to help other families see that while this approach can feel unfamiliar at first, it really does make a difference.”

Nica Hill
RBT
Behavioral Specialist
Education & Credentials
- BS in Psychology
- Master’s in ABA — in progress (BCBA track)
- Registered Behavior Technician (RBT)
- CPR Certified · CPI Certified · Level 1 Medication Aide
Experience
- Began career as a DSP with Beacon Specialized Living
- Advanced through RBT to Behavioral Specialist — all within Beacon
- Experience with individuals with developmental and behavioral needs
- Background in casework and ABA strategy implementation
“My journey began as a DSP with Beacon, where I discovered my passion for helping others and being part of meaningful change. Having started on the front lines, I place a strong emphasis on supporting both clients and staff — because DSPs are the foundation of care.”

Tiffani Little
LCSW
VP of Clinical Operations – Mid Atlantic
Education & Credentials
- Master of Social Work (MSW) – Marywood University, Scranton, PA
- Bachelor of Science in Psychology – DeSales University, Center Valley, PA
- Licensed Clinical Social Worker (LCSW) – Pennsylvania
Experience
- 18+ Years of Clinical Leadership: Extensive background in executive management, program development, and budgeting across residential, outpatient, and community-based settings.
- Multidisciplinary Expertise: Specialist in supporting individuals with intellectual/developmental disabilities (IDD), serious mental illness, and co-occurring diagnoses across the lifespan.
- Diverse System Navigation: Proven track record in foster care, corrections, school-based environments, and trauma-informed behavioral health.
“I am driven by a passion for helping families navigate complex systems and a firm belief in meeting every individual exactly where they are on their journey toward a meaningful, fulfilling life.”

Heidi Fleming
RN, BSN
Registered Nurse
Education & Credentials
- Bachelor of Science in Nursing (BSN) – Herzing University, Madison, WI
- Licensed Practical Nurse (LPN)
Experience
- 20+ Years of Clinical Expertise: A diverse medical career spanning long-term care, specialized surgical units, and psychiatric nursing.
- Operating Room Registered Nurse: Two years of high-acuity surgical experience, ensuring patient safety and procedural excellence.
- Psychiatric Nursing Specialist: Seven years of dedicated mental health service within a large county correctional facility, managing complex psychiatric needs.
- Outpatient & Long-Term Care: Extensive background in General Surgery and OBGYN clinics, built upon a decade of foundational experience in long-term care.
“I find deep joy in empowering care teams and supporting individuals through medical education, feeling truly fortunate to use my two decades of clinical experience to provide clarity and compassionate care.”