Towson (Bellona) Office

Phone: 410-337-7900
Fax: (410) 337-5321
8322 Bellona Ave.
Suite 100
Towson, MD 21204
UM St. Joseph Medical Center / Scoliosis and Spine Center

Phone: 410-337-8888
Fax: (410) 823-4833
7505 Osler Drive
Suite 104
Towson, MD 21204-7737

Bel Air Office

Phone: 410-337-7900
Fax: (410) 569-3551
201 Plumtree Rd
Suite 301
Bel Air, MD 21015
Rosedale Office

Phone: 410-337-7900
Fax: (410) 391-8084
9110 Philadelphia Rd
Suite 308
Rosedale, MD 21237

Our Locations


August 8th, 2017
Welcome Dr. Kenneth Crandall
Towson Orthopaedic Associates welcomes Dr. Kenneth Crandall, a board-eligible neurosurgeon. Read More

Hand injuryJune 29th, 2017
Effects of Sports Specialization on Children
They say practice makes perfect, but can too much practice be a bad thing?  Read More

Patient Portal Bill Pay

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