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

Mr. Mark Gregory Smith, RRT

Individual provider Registered Respiratory Therapist · NPI 1629280599

Mr. Mark Gregory Smith, RRT is a Registered Respiratory Therapist in Rapid City, South Dakota. Practices as a sole proprietor. Licensed in District of Columbia and Pennsylvania.

Licensed in
DC, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
RRT — Registered Respiratory Therapist
Treats breathing disorders and manages ventilators.

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Practice location Address checks out

4549 Candlewood Pl Apt 305
Rapid City, SD 57702-1605
Phone: (240) 422-1979
Show map & directions

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

Specialties & licences

Registered Respiratory Therapist (primary) Taxonomy 227900000X · Licence YM006446L (PA)
Registered Respiratory Therapist Taxonomy 227900000X · Licence RC250 (DC)

Record details

NPI number1629280599
Entity typeIndividual (Type 1)
GenderMale
Credentials RRT
Sole proprietorYes
NPI enumeratedMay 4, 2007
Last updated in NPPESSeptember 11, 2025