Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Amanda O'Neil Mackinnon, PSYD

Individual provider Clinical Psychologist · NPI 1861633729

Dr. Amanda O'Neil Mackinnon, PSYD is a Clinical Psychologist in Great Falls, Montana. Qualified in 2021, 5 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California and Montana.

Years since qualifying
5
Licensed in
CA, MT
In the registry since
2009
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

425 Smelter Ave NE
Great Falls, MT 59404-1927
Phone: (406) 247-7130
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 5584 (MT)
Clinical Psychologist Taxonomy 103TC0700X · Licence 22582 (CA)

Record details

NPI number1861633729
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedMarch 23, 2009
Last updated in NPPESOctober 2, 2025
Certification dateOctober 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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