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

Mark Roy Harstad, RN

Individual provider Critical Care Medicine Registered Nurse · NPI 1023542255

Mark Roy Harstad, RN is a Critical Care Medicine Registered Nurse in Buffalo, Minnesota. Practices as a sole proprietor. Licensed in Minnesota.

Licensed in
MN
In the registry since
2017
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

206 Spruce Ave NE
Buffalo, MN 55313-2517
Phone: (763) 333-6075
Show map & directions

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

Specialties & licences

Critical Care Medicine Registered Nurse (primary) Taxonomy 163WC0200X · Licence R201897-7 (MN)

Record details

NPI number1023542255
Entity typeIndividual (Type 1)
GenderMale
Credentials RN
Sole proprietorYes
NPI enumeratedApril 13, 2017
Last updated in NPPESApril 13, 2017