Andrew Charles Trunkhill, ARNP-C
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 3,019
- Hospital affiliations
- 5
- Industry payments
- $114
- Medical group
- 1
- Practice address
- 1233 N 30th St, Billings, MT 59101
- Practice phone
- Call (406) 237-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Vincent Healthcare
Billings, Montana
Find Andrew Trunkhill'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.
Andrew Charles Trunkhill is a primary care nurse practitioner in Billings, Montana
Andrew Trunkhill practices at St Vincent Healthcare in Billings, Montana.
Andrew Trunkhill's NPI, 1548783814, was assigned on July 19, 2017. Andrew Trunkhill holds Wyoming license 44335.
- NPI
- 1548783814NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820362635
- NPI enumeration date
- July 19, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 237-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Andrew Charles Trunkhill practices at St Vincent Healthcare in Billings, Montana
Andrew Trunkhill's primary practice is St Vincent Healthcare, at 1233 N 30th St, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 237-7000.
- St Vincent Healthcare1233 N 30th St, Billings, MT 59101 · Yellowstone CountyPhone(406) 237-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Andrew Charles Trunkhill is affiliated with 8 sites of care and 1 medical group
Andrew Trunkhill's primary practice is St Vincent Healthcare in Billings, Montana. Andrew Trunkhill is also affiliated with Billings Clinic Hospital. The medical group on file is Frontier NeuroHealth. Dmand AI also links Andrew Trunkhill to 4 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Andrew Charles Trunkhill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Andrew Trunkhill practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Vincent Healthcare | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Andrew Charles Trunkhill is one of 31 primary care nurse practitioners in Montana
Primary care is Andrew Trunkhill's primary specialty in the NPI Registry, under taxonomy code 363LP2300X. Dmand AI has Andrew Trunkhill's licenses on file in 3 states: Wyoming, Iowa and Montana.
Specialties and state licenses
- Primary care nurse practitioner, WyomingPrimary
- Iowa license
- Montana license
Primary care nurse practitioners near Andrew Trunkhill
Counts of primary care nurse practitioners 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
Andrew Charles Trunkhill treated 33 Medicare patients in 2024, average age 73
CMS counts 33 Medicare patients who saw Andrew Trunkhill in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have high blood pressure, and 42% have arthritis. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Andrew Trunkhill's median patient age at 73, with 54% women.
Andrew Trunkhill's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Andrew Trunkhill's Medicare patients by sex, 2024
- Women2164%
- Men1236%
Chronic conditions among Andrew Trunkhill's Medicare patients, 2024
- High blood pressure75%
- Arthritis42%
- High cholesterol39%
Share of Medicare patients with each condition. A patient can have several.
Andrew Trunkhill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Andrew Charles Trunkhill wrote 3,019 Medicare Part D claims in 2024
In 2024, Andrew Trunkhill wrote 3,019 Medicare Part D claims for 220 patients. 85% of them were for generic drugs.
Andrew Trunkhill's Part D claims by kind of drug, 2024
- Generic2,568 claims85%
- Brand-name430 claims14%
- Other21 claims1%
Drug classes CMS tracks in Andrew Trunkhill's Part D claims, 2024
- Opioids5%146 of 3,019 claims
- Antibiotics3%79 of 3,019 claims
- Antipsychotics, patients 65 and over1%16 of 3,019 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
How Andrew Charles Trunkhill takes part in Medicare
Andrew Trunkhill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Andrew Charles Trunkhill received $114 in industry payments in 2025
CMS Open Payments shows 5 general payments to Andrew Trunkhill from 5 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. C2N Diagnostics, LLC paid the most, $32.
Companies that paid Andrew Trunkhill 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 Andrew Charles Trunkhill'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 Andrew Charles Trunkhill
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Andrew Charles Trunkhill's NPI number?
Andrew Charles Trunkhill's NPI number is 1548783814. It was assigned on July 19, 2017, and it is active in the NPI Registry.
What does Andrew Charles Trunkhill specialize in?
Andrew Charles Trunkhill is a primary care nurse practitioner in Billings, Montana. The primary specialty in the NPI Registry is Primary Care Nurse Practitioner (taxonomy code 363LP2300X).
Where does Andrew Charles Trunkhill practice?
Andrew Trunkhill practices at 1233 N 30th St, Billings, MT 59101. Andrew Trunkhill's primary practice is St Vincent Healthcare in Billings, Montana. Dmand AI also links Andrew Trunkhill to 4 hospitals, 1 group practice or clinic and 1 home health agency.
What is Andrew Charles Trunkhill's office phone number?
The practice phone on file for Andrew Trunkhill is (406) 237-7000.
What is Andrew Charles Trunkhill's medical license number?
Andrew Trunkhill holds Wyoming license 44335, one of the licenses on file in 3 states.
Which states has Andrew Charles Trunkhill been licensed in?
Dmand AI has state licenses on file for Andrew Trunkhill in Wyoming, Iowa and Montana.
Which hospitals is Andrew Charles Trunkhill affiliated with?
Andrew Trunkhill is affiliated with Billings Clinic Hospital. Dmand AI links Andrew Trunkhill to 4 more hospitals.
What medical group is Andrew Charles Trunkhill part of?
Andrew Trunkhill is linked to Frontier NeuroHealth.
Does Andrew Charles Trunkhill accept Medicare?
Yes. CMS lists Andrew Trunkhill as accepting Medicare assignment.
How many Medicare patients does Andrew Charles Trunkhill see?
CMS counts 33 Medicare patients who saw Andrew Trunkhill in 2024, with an average age of 73.
Has Andrew Charles Trunkhill received payments from drug or device companies?
CMS Open Payments shows $114 in general payments to Andrew Trunkhill from 5 companies from 2025 to 2025. The largest total came from C2N Diagnostics, LLC.
How long has Andrew Charles Trunkhill been practicing?
Andrew Trunkhill graduated from medical school in 2017, 9 years ago.
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