Patrick T. Armstrong, PA-C
- Part D claims, 2024
- 3,750
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 315 W Madison Ave, Chester, MT 59522
- Practice phone
- Call (406) 759-5181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Patrick Armstrong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Patrick T. Armstrong is a physician assistant in Great Falls, Montana
Patrick Armstrong practices at Logan Health - Chester in Chester, Montana, part of Billings Clinic.
Patrick Armstrong's NPI, 1063468015, was assigned on May 25, 2006. Patrick Armstrong holds Montana license 129.
- NPI
- 1063468015NPI Registry (opens in a new tab)
- NPI enumeration date
- May 25, 2006
- NPI status
- Active
- Practice phone
- (406) 759-5181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Patrick T. Armstrong practices in Chester and Great Falls
Patrick Armstrong's primary practice is Logan Health - Chester, at 315 W Madison Ave, Chester, MT 59522 in Liberty County. The practice phone is (406) 759-5181. The NPI Registry lists Patrick Armstrong's practice address as 1101 26th S St, Great Falls, MT 59405.
- Logan Health - ChesterPrimary315 W Madison Ave, Chester, MT 59522 · Liberty CountyPhone(406) 759-5181
- NPI Registry address1101 26th S St, Great Falls, MT 59405 · Cascade County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Patrick T. Armstrong is affiliated with 1 site of care and 1 medical group
Patrick Armstrong's primary practice is Logan Health - Chester in Chester, Montana, part of Billings Clinic. The medical group on file is Logan Health Rural Health Clinic, Chester.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Patrick T. Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Patrick Armstrong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Logan Health - Chester | Available with a free account |
Source: Dmand AI Technology Install Data
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Patrick T. Armstrong is one of 656 physician assistants in Montana
Physician assistant is Patrick Armstrong's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Patrick Armstrong is licensed in Montana.
Specialties and state licenses
- Physician assistant, MontanaPrimary
Physician assistants near Patrick Armstrong
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Patrick T. Armstrong's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Patrick Armstrong's median patient age at 58, with 0% women.
Patrick Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Patrick T. Armstrong wrote 3,750 Medicare Part D claims in 2024
In 2024, Patrick Armstrong wrote 3,750 Medicare Part D claims for 179 patients. 88% of them were for generic drugs.
Patrick Armstrong's Part D claims by kind of drug, 2024
- Generic3,317 claims88%
- Brand-name420 claims11%
- Other13 claims0%
Drug classes CMS tracks in Patrick Armstrong's Part D claims, 2024
- Opioids1%28 of 3,750 claims
- Antibiotics1%35 of 3,750 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Sources for Patrick T. Armstrong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Patrick T. Armstrong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Patrick T. Armstrong's NPI number?
Patrick T. Armstrong's NPI number is 1063468015. It was assigned on May 25, 2006, and it is active in the NPI Registry.
What does Patrick T. Armstrong specialize in?
Patrick T. Armstrong is a physician assistant in Great Falls, Montana. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Patrick T. Armstrong practice?
Patrick Armstrong practices at 315 W Madison Ave, Chester, MT 59522. Patrick Armstrong also practices at 1101 26th S St, Great Falls, MT 59405. Patrick Armstrong's primary practice is Logan Health - Chester in Chester, Montana, part of Billings Clinic.
What is Patrick T. Armstrong's office phone number?
The practice phone on file for Patrick Armstrong is (406) 759-5181.
What is Patrick T. Armstrong's medical license number?
Patrick Armstrong holds Montana license 129.
Which hospitals is Patrick T. Armstrong affiliated with?
Patrick Armstrong practices at Logan Health - Chester in Chester, Montana.
What medical group is Patrick T. Armstrong part of?
Patrick Armstrong is linked to Logan Health Rural Health Clinic, Chester.
How long has Patrick T. Armstrong been practicing?
Patrick Armstrong graduated from medical school in 1995, 31 years ago.
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