Dr. Ian Stuart MacDonald, DO
- Medicare services, 2024
- 683
- Medicare patients, 2024
- 275
- Part D claims, 2024
- 132
- Hospital affiliations
- 2
- Industry payments
- $33
- Practice address
- 400 S Clark St, Butte, MT 59701
- Practice phone
- Call (406) 723-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Ian Stuart MacDonald is an internist in Butte, Montana
Dr. MacDonald practices at St. James Hospital in Butte, Montana, part of Intermountain Health.
Dr. MacDonald's NPI, 1093207318, was assigned on June 1, 2018. Dr. MacDonald holds Montana license 110660.
- NPI
- 1093207318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496082521
- NPI enumeration date
- June 1, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 723-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ian Stuart MacDonald practices at St. James Hospital in Butte, Montana
Dr. MacDonald's primary practice is St. James Hospital, at 400 S Clark St, Butte, MT 59701 in Silver Bow County. The practice phone is (406) 723-2500.
- St. James Hospital400 S Clark St, Butte, MT 59701 · Silver Bow CountyPhone(406) 723-2500
Source: Dmand AI Affiliation Data
Dr. Ian Stuart MacDonald is affiliated with 2 sites of care and 3 medical groups
Dr. MacDonald's primary practice is St. James Hospital in Butte, Montana, part of Intermountain Health. Dr. MacDonald is also affiliated with Bozeman Health Deaconess Regional Medical Center. The medical group on file is SCL Health Medical Group - Butte. Dmand AI also links Dr. MacDonald to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian Stuart MacDonald's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. MacDonald practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. James Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ian Stuart MacDonald is one of 311 internists in Montana
Internal medicine is Dr. MacDonald's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. MacDonald is licensed in Montana.
Specialties and state licenses
- Internal medicine, MontanaPrimary
Internists near Dr. MacDonald
Counts of internists 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
Dr. Ian Stuart MacDonald billed Medicare for 683 services in 2024
CMS data shows 683 Medicare services from Dr. MacDonald across 4 procedure codes in 2024, for 275 Medicare patients. Medicare paid $58,872 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. MacDonald's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6442024: 6836%
Dr. MacDonald compared with the Montana median for internists, 2024
- Dr. MacDonald
- Montana median
- Medicare services
- 683vs 47643% above
- Medicare patients
- 275vs 2539% above
- Part D claims
- 27vs 14381% below
Medians across 340 internists in Montana with Dmand AI profiles that report each measure.
Dr. MacDonald's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. MacDonald and other internists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian Stuart MacDonald treated 275 Medicare patients in 2024, average age 75
CMS counts 275 Medicare patients who saw Dr. MacDonald in 2024. The largest group is 75 to 84, with 108 patients. 75% of them have high blood pressure, and 65% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.73, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. MacDonald's median patient age at 75, with 61% women.
Dr. MacDonald's Medicare patients by age, 2024
Dr. MacDonald's Medicare patients by sex, 2024
- Women15657%
- Men11943%
Chronic conditions among Dr. MacDonald's Medicare patients, 2024
- High blood pressure75%
- High cholesterol65%
- Arthritis50%
- Mood disorders46%
- Diabetes43%
- Depression42%
- COPD37%
- Heart failure37%
Share of Medicare patients with each condition. A patient can have several.
Dr. MacDonald's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ian Stuart MacDonald wrote 132 Medicare Part D claims in 2024
In 2024, Dr. MacDonald wrote 132 Medicare Part D claims for 61 patients. 85% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $228 in total drug cost.
Dr. MacDonald's Part D claims by kind of drug, 2024
- Generic112 claims85%
- Brand-name20 claims15%
Dr. MacDonald's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. MacDonald's Part D claims, 2024
- Antibiotics20%27 of 132 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Ian Stuart MacDonald takes part in Medicare
Dr. MacDonald 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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Dr. Ian Stuart MacDonald received $33 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. MacDonald from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $33.
Companies that paid Dr. MacDonald the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ian Stuart MacDonald'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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 Dr. Ian Stuart MacDonald
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ian Stuart MacDonald's NPI number?
Dr. Ian Stuart MacDonald's NPI number is 1093207318. It was assigned on June 1, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian Stuart MacDonald?
Dr. Ian Stuart MacDonald is an internist in Butte, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ian Stuart MacDonald practice?
Dr. MacDonald practices at 400 S Clark St, Butte, MT 59701. Dr. MacDonald's primary practice is St. James Hospital in Butte, Montana, part of Intermountain Health. Dmand AI also links Dr. MacDonald to 2 medical groups.
What is Dr. Ian Stuart MacDonald's office phone number?
The practice phone on file for Dr. MacDonald is (406) 723-2500.
What is Dr. Ian Stuart MacDonald's medical license number?
Dr. MacDonald holds Montana license 110660.
Which hospitals is Dr. Ian Stuart MacDonald affiliated with?
Dr. MacDonald practices at St. James Hospital in Butte, Montana. Dr. MacDonald is also affiliated with Bozeman Health Deaconess Regional Medical Center.
What medical group is Dr. Ian Stuart MacDonald part of?
Dr. MacDonald is linked to SCL Health Medical Group - Butte. Dmand AI links Dr. MacDonald to 2 more medical groups.
Does Dr. Ian Stuart MacDonald accept Medicare?
Yes. CMS data shows Dr. MacDonald billed Medicare for 683 services in 2024, and Dr. MacDonald accepts Medicare assignment.
How many Medicare patients does Dr. Ian Stuart MacDonald see?
CMS counts 275 Medicare patients who saw Dr. MacDonald in 2024, with an average age of 75.
What services does Dr. Ian Stuart MacDonald bill to Medicare?
In 2024, Dr. MacDonald's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99233).
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What drugs does Dr. Ian Stuart MacDonald prescribe most?
In 2023 Medicare Part D data, Dr. MacDonald's most prescribed drugs by claims were Metoprolol Succinate and Furosemide.
Has Dr. Ian Stuart MacDonald received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. MacDonald from 1 company from 2022 to 2022. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Ian Stuart MacDonald been practicing?
Dr. MacDonald graduated from medical school in 2019, 7 years ago.
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