Nash John Hallfrisch, PA-C
- Medicare patients, 2024
- 467
- Part D claims, 2024
- 8,639
- MIPS score, 2024
- 91
- Hospital affiliations
- 2
- Industry payments
- $310
- Practice address
- 3010 15th Avenue South, Great Falls, MT 59405
- Practice phone
- Call (406) 216-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Nash Hallfrisch's professional email, personal email and mobile number
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Nash John Hallfrisch is a physician assistant in Great Falls, Montana
Nash Hallfrisch practices at Great Falls Hospital in Great Falls, Montana, part of Surgery Partners.
Nash Hallfrisch's NPI, 1184102162, was assigned on August 1, 2018. Nash Hallfrisch holds Montana license 69159.
- NPI
- 1184102162NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193063758
- NPI enumeration date
- August 1, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 216-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nash John Hallfrisch practices at Great Falls Hospital in Great Falls, Montana
Nash Hallfrisch's primary practice is Great Falls Hospital, at 3010 15th Avenue South, Great Falls, MT 59405 in Cascade County. The practice phone is (406) 216-8000.
- Great Falls Hospital3010 15th Avenue South, Great Falls, MT 59405 · Cascade CountyPhone(406) 216-8000
Source: Dmand AI Affiliation Data
Nash John Hallfrisch is affiliated with 6 sites of care and 2 medical groups
Nash Hallfrisch's primary practice is Great Falls Hospital in Great Falls, Montana, part of Surgery Partners. Nash Hallfrisch is also affiliated with Benefis East Campus. The medical group on file is Great Falls Clinic. Dmand AI also links Nash Hallfrisch to 2 more group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nash John Hallfrisch's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nash Hallfrisch practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Great Falls Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Nash John Hallfrisch is one of 236 physician assistants in Montana
Medical is Nash Hallfrisch's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Nash Hallfrisch is licensed in Montana.
Specialties and state licenses
- Medical physician assistant, MontanaPrimary
Physician assistants near Nash Hallfrisch
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
Nash John Hallfrisch treated 467 Medicare patients in 2024, average age 74
CMS counts 467 Medicare patients who saw Nash Hallfrisch in 2024. The largest group is 65 to 74, with 232 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nash Hallfrisch's median patient age at 68, with 28% women.
Nash Hallfrisch's Medicare patients by age, 2024
Nash Hallfrisch's Medicare patients by sex, 2024
- Women12226%
- Men34574%
Chronic conditions among Nash Hallfrisch's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Ischemic heart disease28%
- Diabetes27%
- Chronic kidney disease26%
- Mood disorders17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Nash Hallfrisch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women28%
- Men72%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nash John Hallfrisch wrote 8,639 Medicare Part D claims in 2024
In 2024, Nash Hallfrisch wrote 8,639 Medicare Part D claims for 604 patients. 89% of them were for generic drugs.
Nash Hallfrisch's Part D claims by kind of drug, 2024
- Generic7,656 claims89%
- Brand-name924 claims11%
- Other59 claims1%
Drug classes CMS tracks in Nash Hallfrisch's Part D claims, 2024
- Opioids0%42 of 8,639 claims
- Antibiotics1%63 of 8,639 claims
- Antipsychotics, patients 65 and over0%15 of 8,639 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
Nash John Hallfrisch scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Nash Hallfrisch for performance year 2024, reported through an alternative payment model (APM). Nash Hallfrisch accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Nash Hallfrisch's MIPS scores, performance year 2024
- 91of 100Final score
- 80.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Nash John Hallfrisch received $310 in industry payments in 2025
CMS Open Payments shows 20 general payments to Nash Hallfrisch from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $126.
Companies that paid Nash Hallfrisch the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Nash John Hallfrisch'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Nash John Hallfrisch
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nash John Hallfrisch's NPI number?
Nash John Hallfrisch's NPI number is 1184102162. It was assigned on August 1, 2018, and it is active in the NPI Registry.
What does Nash John Hallfrisch specialize in?
Nash John Hallfrisch is a physician assistant in Great Falls, Montana. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Nash John Hallfrisch practice?
Nash Hallfrisch practices at 3010 15th Avenue South, Great Falls, MT 59405. Nash Hallfrisch's primary practice is Great Falls Hospital in Great Falls, Montana, part of Surgery Partners. Dmand AI also links Nash Hallfrisch to 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Nash John Hallfrisch's office phone number?
The practice phone on file for Nash Hallfrisch is (406) 216-8000.
What is Nash John Hallfrisch's medical license number?
Nash Hallfrisch holds Montana license 69159.
Which hospitals is Nash John Hallfrisch affiliated with?
Nash Hallfrisch practices at Great Falls Hospital in Great Falls, Montana. Nash Hallfrisch is also affiliated with Benefis East Campus.
What medical group is Nash John Hallfrisch part of?
Nash Hallfrisch is linked to Great Falls Clinic. Dmand AI links Nash Hallfrisch to 1 more medical group.
Does Nash John Hallfrisch accept Medicare?
Yes. CMS lists Nash Hallfrisch as accepting Medicare assignment.
What is Nash John Hallfrisch's MIPS score?
Nash Hallfrisch's MIPS final score for performance year 2024 is 91 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Nash John Hallfrisch see?
CMS counts 467 Medicare patients who saw Nash Hallfrisch in 2024, with an average age of 74.
Has Nash John Hallfrisch received payments from drug or device companies?
CMS Open Payments shows $310 in general payments to Nash Hallfrisch from 8 companies from 2025 to 2025. The largest total came from Amgen Inc.
How long has Nash John Hallfrisch been practicing?
Nash Hallfrisch graduated from medical school in 2018, 8 years ago.
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