Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mrs. Mary-Martha Johnson, MSN, APRN, BC

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1861526683

Mrs. Mary-Martha Johnson, MSN, APRN, BC is a Psychiatric/Mental Health Registered Nurse in Bala Cynwyd, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2007
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
BC — Board Certified
Appended to another credential to show current board certification, as in APRN-BC.

See every abbreviation used in this directory →

Practice location Address checks out

555 E City Ave Ste 210
Bala Cynwyd, PA 19004-1115
Phone: (610) 660-8338
Fax: (610) 660-8339
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0808X · Licence RN242205L (PA)

Record details

NPI number1861526683
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APRN , BC
Sole proprietorYes
NPI enumeratedMarch 15, 2007
Last updated in NPPESJuly 8, 2007