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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DEBRA JEAN AMMONDSON OTR
NPI 1326252669
Occupational Therapist - Ergonomics in Great Falls, MT

Active since May 09, 2007
1401 25TH ST S, GREAT FALLS, MT 59405(406) 731-8930 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Debra Jean Ammondson Otr NPPES

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

DEBRA JEAN AMMONDSON OTR (NPI 1326252669) is an individual ergonomics provider in Great Falls, Montana, licensed in Montana (2) and active in the NPI registry since May 2007.

NPPES Registry Identity

NPI1326252669
Entity TypeIndividualFemale
Primary Taxonomy225XE1200X
Provider Legal NameDEBRA JEAN AMMONDSONCredential: OTR
Location Address1401 25TH ST SGreat Falls, MT 59405-5183
Mailing Address1401 25th St SGreat Falls, MT 59405-5183 · (406) 453-7151
Phone(406) 731-8930
Sole ProprietorNo
Enumeration DateMay 9, 2007
Last NPPES UpdateOctober 6, 20262 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1326252669 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyOccupational Therapist · ErgonomicsRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225XE1200X
License✔ Licensed in MT · 2
Also ListedOccupational TherapistTaxonomy 225X00000X · License 2 (MT)
Also ListedOccupational Therapist · HandTaxonomy 225XH1200X · License 2 (MT)
1401 25TH ST S, Great Falls, MT 59405
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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.

RETTE MARIE RILEY OLSEN DNP, APRN, FNP-C
Nurse Practitioner (Family)
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
ELIAS J. BAIED DO
Internal Medicine (Infectious Disease)
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
ADRIENNE MARY KRYSIAK
Emergency Medicine
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
KAYTLIN G DEVENEY PA
Physician Assistant
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 455-5000
SYDNE SKAER
Nurse Practitioner (Family)
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
MORRIS LYNN JESSOP M.D.
Urology
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
ANDREA LYNN DUDDINGTON
Physical Therapy Assistant
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8930
WILLIAM E HENNING DO
Psychiatry & Neurology (Neurology)
1401 25TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 731-8817

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 Debra Ammondson's NPI number?

The NPI number for Debra Ammondson is 1326252669. It was assigned to this individual provider in the NPPES registry on May 9, 2007.

Where is Debra Ammondson located?

Debra Ammondson practices at 1401 25th St S, Great Falls, MT 59405. The listed phone number is (406) 731-8930.

What is Debra Ammondson's specialty?

The primary specialty registered for this NPI is Occupational Therapist, specializing in Ergonomics, with taxonomy code 225XE1200X.

When was this NPI record last updated?

The NPPES record for Debra Ammondson was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.