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

Johanna Nielsen, PHD

Individual provider Clinical Psychologist · NPI 1861231847

Johanna Nielsen, PHD is a Clinical Psychologist in Concord, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2024.

Licensed in
MA
In the registry since
2024
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

801 Main St Ste 7
Concord, MA 01742-3319
Phone: (617) 539-6762
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY10000430 (MA)

Record details

NPI number1861231847
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 21, 2024
Last updated in NPPESMay 21, 2024
Certification dateMay 21, 2024

Other providers in Concord