Marianne Crowley, MSN, APRN, FNP-BC
Family Nurse Practitioner
Accepts New Patients
Offers Virtual Visits
Languages Spoken
English
Biography
Marianne Crowley is a board-certified Family Nurse Practitioner with a strong clinical background in critical care, progressive care, and primary care settings. She has extensive experience managing acutely and chronically ill patients, particularly in cardiac, respiratory, and metabolic conditions. Marianne has worked across multiple high-acuity hospital environments and has also served as a clinical instructor, training nursing students in acute care settings. Her practice emphasizes evidence-based care, interdisciplinary collaboration, and patient safety.
Board Certifications
- Family Nurse Practitioner – Board Certified (ANCC)
- Advanced Practice Registered Nurse – Virginia
- Registered Nurse – Virginia
- Registered Nurse – California
- Advanced Cardiac Life Support (ACLS)
- Basic Life Support (BLS)
- DEA License
Areas of Expertise
- Critical and progressive care nursing
- Cardiac and telemetry patient management
- Acute and chronic disease management
- Ventilator and respiratory support care
- Hemodynamic monitoring
- Patient education and interdisciplinary care
- Clinical instruction and nursing education
Education
2025
Medical School
Master of Science in Nursing – Family Nurse Practitioner The George Washington University
2018
Graduate Education
Bachelor of Science in Nursing Chamberlain College of Nursing
2017
Undergraduate School
Associate of Applied Science in Nursing Lord Fairfax Community College
Hospitals Affiliated With
- Inova Loudoun Hospital
- Inova Fairfax Hospital
- St. John’s Hospital Camarillo
- St. John’s Regional Medical Center
- University of San Diego Medical Facilities
- Reston Hospital Center









