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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

AARON JOHNSTON
NPI 1376440560
Pharmacist - Emergency Medicine in Billings, MT

Active since October 21, 2026
2800 10TH AVE N, BILLINGS, MT 59101(406) 238-2500 Get Directions Write a Review

NPPES record added: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Aaron Johnston NPPES

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

AARON JOHNSTON (NPI 1376440560) is an individual emergency medicine provider in Billings, Montana, licensed in Montana (PHA-PHA-LIC-89159) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1376440560
Entity TypeIndividualMale
Primary Taxonomy1835E0208X
Provider Legal NameAARON JOHNSTON
Location Address2800 10TH AVE NBillings, MT 59101-0703
Mailing Address2800 10th Ave NBillings, MT 59101-0703
Phone(406) 238-2500
Sole ProprietorNo
Enumeration DateOctober 21, 2026
NPPES CertifiedOctober 21, 2026
✔ NPI 1376440560 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPharmacist · Emergency MedicinePharmacy Service Providers
Taxonomy Code1835E0208X
License✔ Licensed in MT · PHA-PHA-LIC-89159
Definition
A licensed pharmacist who has demonstrated specialized knowledge and skill in the care for patients at the bedside in emergency medicine settings.
2800 10TH AVE N, Billings, MT 59101
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Other Providers at the Same Location NPPES 20

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

ANNA VICTORIA NESOVIC DNP, FNP-BC
Nurse Practitioner (Family)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 672-0927
RODNEY JAKE TEICHROEB MD
Hospitalist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
BILLINGS CLINIC
Pharmacy (Community/Retail Pharmacy)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2084
BILLINGS CLINIC
Nursing Facility/Intermediate Care Facility
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 657-4000
DR. HEATHER I GALE MD
Radiology (Diagnostic Radiology)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-5046
MELINDA M TRUESDELL APRN
Nurse Practitioner (Psychiatric/Mental Health)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
EMILY BERENDTS ANDERSON M.S.
Speech-Language Pathologist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
KORBIN JOHNSON RN
Registered Nurse (Critical Care Medicine)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500

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 Aaron Johnston's NPI number?

The NPI number for Aaron Johnston is 1376440560. It was assigned to this individual provider in the NPPES registry on October 21, 2026.

Where is Aaron Johnston located?

Aaron Johnston practices at 2800 10th Ave N, Billings, MT 59101. The listed phone number is (406) 238-2500.

What is Aaron Johnston's specialty?

The primary specialty registered for this NPI is Pharmacist, specializing in Emergency Medicine, with taxonomy code 1835E0208X.

When was this NPI record last updated?

The NPPES record for Aaron Johnston was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.