Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. David R O'Brien, PHARMD, RPH

Individual provider Ambulatory Care Pharmacist · NPI 1497407613

Mr. David R O'Brien, PHARMD, RPH is an Ambulatory Care Pharmacist in Hardin, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
In the registry since
2022
What do these letters mean?
PHARMD — Doctor of Pharmacy
The professional degree required to practise as a pharmacist in the United States.
RPH — Registered Pharmacist
A pharmacist licensed by a state board.

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Practice location Address checks out

10 4th St W
Hardin, MT 59034-1802
Phone: (496) 867-4141
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ambulatory Care Pharmacist (primary) Taxonomy 1835P2201X · Licence PHA-PHA-LIC-12476 (MT)

Record details

NPI number1497407613
Entity typeIndividual (Type 1)
GenderMale
Credentials PHARMD , RPH
Sole proprietorYes
NPI enumeratedJanuary 19, 2022
Last updated in NPPESJanuary 19, 2022
Certification dateJanuary 19, 2022

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