Dr. Dave R. Johnson, MD
- Medicare services, 2021
- 241
- Part D claims, 2024
- 21
- Hospital affiliations
- 1
- Industry payments
- $13
- Medical groups
- 2
- Practice address
- 301 W 7th Ave, Big Timber, MT 59011
- Practice phone
- Call (406) 932-4603
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Dave R. Johnson is an internist in Big Timber, Montana
Dr. Johnson practices at Pioneer Medical Center in Big Timber, Montana, part of Pioneer Medical Center.
Dr. Johnson's NPI, 1821038944, was assigned on June 7, 2006. Dr. Johnson graduated from Sanford School of Medicine of University of South Dakota in 1980. Dr. Johnson holds South Dakota license 1584.
- NPI
- 1821038944NPI Registry (opens in a new tab)
- NPI enumeration date
- June 7, 2006
- NPI status
- Active
- Practice phone
- (406) 932-4603
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Dave R. Johnson practices at Pioneer Medical Center in Big Timber, Montana
Dr. Johnson's primary practice is Pioneer Medical Center, at 301 W 7th Ave, Big Timber, MT 59011 in Sweet Grass County. The practice phone is (406) 932-4603.
- Pioneer Medical Center301 W 7th Ave, Big Timber, MT 59011 · Sweet Grass CountyPhone(406) 932-4603
Source: Dmand AI Affiliation Data
Dr. Dave R. Johnson is affiliated with 4 sites of care and 2 medical groups
Dr. Johnson's primary practice is Pioneer Medical Center in Big Timber, Montana, part of Pioneer Medical Center. The medical group on file is Black Hills Surgical Hospital. Dmand AI also links Dr. Johnson to 2 more group practices and clinics, 1 hospice 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 Dr. Dave R. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pioneer Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Pioneer Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Dave R. Johnson is one of 311 internists in Montana
Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in South Dakota.
Specialties and state licenses
- Internal medicine, South DakotaPrimary
Internists near Dr. Johnson
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. Dave R. Johnson billed Medicare for 241 services in 2021
CMS data shows 241 Medicare services from Dr. Johnson across 4 procedure codes in 2021. Medicare paid $9,198 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 4542021: 24147%
Dr. Johnson compared with the Montana median for internists, 2021
- Dr. Johnson
- Montana median
- Medicare services
- 241vs 47649% below
- Part D claims
- 12vs 14392% below
Medians across 340 internists in Montana with Dmand AI profiles that report each measure.
Dr. Johnson's most billed Medicare procedure codes, 2021
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. Johnson and other internists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dave R. Johnson's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 70, with 56% women.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women56%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Dave R. Johnson wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 21 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $77 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Johnson'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 12No change
Drugs named by CMS: 1 in 2023, 1 in 2022.
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
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Dr. Dave R. Johnson received $13 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Johnson from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Kowa Pharmaceuticals America, Inc. paid the most, $13.
Companies that paid Dr. Johnson the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dave R. Johnson graduated from Sanford School of Medicine of University of South Dakota
Dr. Johnson graduated from Sanford School of Medicine of University of South Dakota in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dave R. Johnson'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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Dave R. Johnson
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. Dave R. Johnson's NPI number?
Dr. Dave R. Johnson's NPI number is 1821038944. It was assigned on June 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Dave R. Johnson?
Dr. Dave R. Johnson is an internist in Big Timber, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Dave R. Johnson practice?
Dr. Johnson practices at 301 W 7th Ave, Big Timber, MT 59011. Dr. Johnson's primary practice is Pioneer Medical Center in Big Timber, Montana, part of Pioneer Medical Center. Dmand AI also links Dr. Johnson to 2 group practices and clinics, 1 hospice and 1 medical group.
What is Dr. Dave R. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (406) 932-4603.
What is Dr. Dave R. Johnson's medical license number?
Dr. Johnson holds South Dakota license 1584.
Which hospitals is Dr. Dave R. Johnson affiliated with?
Dr. Johnson practices at Pioneer Medical Center in Big Timber, Montana.
What medical group is Dr. Dave R. Johnson part of?
Dr. Johnson is linked to Black Hills Surgical Hospital. Dmand AI links Dr. Johnson to 1 more medical group.
Does Dr. Dave R. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 241 services in 2021.
What services does Dr. Dave R. Johnson bill to Medicare?
In 2021, Dr. Johnson's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99224).
Where did Dr. Dave R. Johnson go to medical school?
Dr. Johnson graduated from Sanford School of Medicine of University of South Dakota in 1980.
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What drugs does Dr. Dave R. Johnson prescribe most?
In 2023 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Finasteride.
Has Dr. Dave R. Johnson received payments from drug or device companies?
CMS Open Payments shows $13 in general payments to Dr. Johnson from 1 company from 2022 to 2022. The largest total came from Kowa Pharmaceuticals America, Inc.
How long has Dr. Dave R. Johnson been practicing?
Dr. Johnson graduated from medical school in 1980, 46 years ago.
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