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
Mailing address206 Spruce Ave Ne, Buffalo, MN 55313-2517