Our Locations


October 18, 2017
2017 Baltimore Top Docs
Congratulations UM SJMC & Towson Ortho Assoc. specialists named Top Docs by Baltimore Magazine.  …Read More

Dr. Tiffany Tsay, M.D.September 15, 2017
Welcome Dr. Tsay
Tiffany Tsay, MD, sports medicine specialist, joins Towson Orthopaedic Associates… Read More

Woman with ankle injurySeptember, 5, 2017
NEW After Hours Orthopaedic Care
Walk-ins with new Orthopaedic injuries welcome Mon.-Thurs., 4:30 – 7:30 p.m. …More

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Mary Jo Holloran, MS, CRNP


Mary Jo Holloran is a board certified Adult Nurse Practitioner with nearly 30 years of experience in patient care. She sees patients with complaints in:


  • Nursing School: University of Maryland St. Joseph Medical Center School of Nursing, 1980
  • Undergraduate: George Mason University
  • Nurse Practitioner Training: College of Notre Dame
  • Graduate Degree: Towson University

Professional Memberships & Certifications

Board and Licensure

  • State of Maryland, Registered Nurse 1980 to Present
  • State of Maryland, Adult Nurse Practitioner, 1983 to Present
  • State of Virginia, 1983-1990
  • Board Certified, American Nurses Credentialing Center, 1983
  • Recertified, American Nurses Credentialing Center, 2013
  • Certification Cardiopulmonary Resuscitation, 1983-2011

Professional Affiliations

  • Nurse Practitioner Association of Maryland
  • American Nurses Association
  • Maryland Nurses Association
  • NAON – National Association of Orthopaedic Nurses


  • Towson University, 2006-2008, Clinical Faculty, Nursing Program
  • Preceptor, Nurse Practitioner Program
  • Bowie State College
  • University of Maryland

What Mary Jo Holloran’s Patients Have to Say…

  • Dear Mary Jo: There’s a sincerity in everything you do that makes it clear that nursing is far more than just a job to you… You’re a wonderful nurse, and Nurses Day is the perfect time to let you know just how much you’re appreciated. Thank you very much for all your care.

    — Margie M.

    …Read More

  • Dear Mary Jo: Thank you (for allowing me) to shadow you in practice for two clinical days. I found the experience helpful for future practice. Also, thank you very much for allowing me to have several journals and providing me with two reference texts to borrow. I look forward to working with you in the future. Thank you again.


    — Brittany K.

    …Read More