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MR. DAVID R O'BRIEN PHARMD, RPH
NPI 1497407613
Pharmacist - Ambulatory Care in Hardin, MT

Active since January 19, 2022

NPPES record last updated: January 19, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mr. David R O'brien Pharmd, Rph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. DAVID R O'BRIEN PHARMD, RPH (NPI 1497407613) is an individual ambulatory care provider in Hardin, Montana, licensed in Montana (PHA-PHA-LIC-12476) and active in the NPI registry since January 2022.

NPPES Registry Identity

NPI1497407613
Entity TypeIndividualMale
Primary Taxonomy1835P2201X
Provider Legal NameMR. DAVID R O'BRIENCredential: PHARMD, RPH
Location Address10 4TH ST WHardin, MT 59034-1802
Mailing Address3110 Rugby DrBillings, MT 59102-0750 · (406) 534-4939
Phone(496) 867-4141
Sole ProprietorYes
Enumeration DateJanuary 19, 2022
NPPES CertifiedJanuary 19, 2022
✔ NPI 1497407613 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPharmacist · Ambulatory CarePharmacy Service Providers
Taxonomy Code1835P2201X
License✔ Licensed in MT · PHA-PHA-LIC-12476
Definition

A licensed pharmacist who has demonstrated specialized knowledge and skill in the provision of integrated, accessible health care services by pharmacists and is accountable for addressing medication needs, developing sustained partnerships with patients, and practicing in the context of family and community.

10 4TH ST W, Hardin, MT 59034
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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBERT GORDON BYRON MD
Internal Medicine
10 4TH ST W, SUITE B
HARDIN, MT 59034
Big Horn County (406) 665-4103
ASHLEY R VANDEWARK RPH
Pharmacist (Ambulatory Care)
10 4TH ST W
HARDIN, MT 59034
Big Horn County (406) 208-4925
DR. MICHAEL RAY TILUS PSYD
Psychologist (Clinical)
10 4TH ST W
HARDIN, MT 59034
Big Horn County (406) 867-4105
PAUL JOHN MURTER III PHYSICIAN ASSISTANT
Physician Assistant
10 4TH ST W, B
HARDIN, MT 59034
Big Horn County (406) 665-4103
ROSALYN MARIE BIGBACK LAC
Counselor (Addiction (Substance Use Disorder))
10 4TH ST W
HARDIN, MT 59034
Big Horn County (406) 867-4105

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David O'brien's NPI number?

The NPI number for David O'brien is 1497407613. It was assigned to this individual provider in the NPPES registry on January 19, 2022.

Where is David O'brien located?

David O'brien practices at 10 4th St W, Hardin, MT 59034. The listed phone number is (496) 867-4141.

What is David O'brien's specialty?

The primary specialty registered for this NPI is Pharmacist, specializing in Ambulatory Care, with taxonomy code 1835P2201X.

When was this NPI record last updated?

The NPPES record for David O'brien was last updated on January 19, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.