Dr. John Ellis, DO
- Medicare services, 2024
- 601
- Medicare patients, 2024
- 458
- Part D claims, 2024
- 341
- Hospital affiliations
- 4
- Industry payments
- $183
- Practice address
- 1101 26th St S, Great Falls, MT 59405
- Practice phone
- Call (406) 455-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. John Ellis is an emergency medicine physician in Great Falls, Montana
Dr. Ellis practices at Benefis East Campus in Great Falls, Montana, part of Benefis Health System.
Dr. Ellis' NPI, 1003221037, was assigned on June 28, 2014. Dr. Ellis graduated from Lake Erie College of Osteopathic Medicine Bradenton Campus in 2014. Dr. Ellis holds California license 22891.
- NPI
- 1003221037NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012244882
- NPI enumeration date
- June 28, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 455-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Ellis practices at Benefis East Campus in Great Falls, Montana
Dr. Ellis' primary practice is Benefis East Campus, at 1101 26th St S, Great Falls, MT 59405 in Cascade County. The practice phone is (406) 455-5000.
- Benefis East Campus1101 26th St S, Great Falls, MT 59405 · Cascade CountyPhone(406) 455-5000
Source: Dmand AI Affiliation Data
Dr. John Ellis is affiliated with 4 sites of care and 7 medical groups
Dr. Ellis' primary practice is Benefis East Campus in Great Falls, Montana, part of Benefis Health System. Dr. Ellis is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. The medical group on file is Benefis Health System. Dmand AI also links Dr. Ellis to 2 more hospitals and 6 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. John Ellis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ellis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Benefis East Campus | Available with a free account |
| +3 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Benefis Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Ellis is one of 245 emergency medicine physicians in Montana
Emergency medicine is Dr. Ellis' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Ellis' licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Florida license
Emergency medicine physicians near Dr. Ellis
Counts of emergency medicine physicians 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. John Ellis billed Medicare for 601 services in 2024
CMS data shows 601 Medicare services from Dr. Ellis across 4 procedure codes in 2024, for 458 Medicare patients. Medicare paid $61,410 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ellis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3312024: 45136%
- Tests and treatments
- 2023: 1072024: 15040%
Dr. Ellis compared with the Montana median for emergency medicine physicians, 2024
- Dr. Ellis
- Montana median
- Medicare services
- 601vs 30498% above
- Medicare patients
- 458vs 30252% above
- Part D claims
- 213vs 454.7 times
Medians across 269 emergency medicine physicians in Montana with Dmand AI profiles that report each measure.
Dr. Ellis' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Ellis treated 458 Medicare patients in 2024, average age 74
CMS counts 458 Medicare patients who saw Dr. Ellis in 2024. The largest group is 65 to 74, with 160 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.03, 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. Ellis' median patient age at 52, with 58% women.
Dr. Ellis' Medicare patients by age, 2024
Dr. Ellis' Medicare patients by sex, 2024
- Women27560%
- Men18340%
Chronic conditions among Dr. Ellis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease43%
- Chronic kidney disease41%
- Mood disorders41%
- Anxiety40%
- Depression40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ellis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Ellis wrote 341 Medicare Part D claims in 2024
In 2024, Dr. Ellis wrote 341 Medicare Part D claims for 206 patients. 96% of them were for generic drugs. CMS names the drug for 213 of them, across 9 drugs with 11 or more claims each, at $960 in total drug cost. In 2023, CMS named 125 claims across 6 drugs.
Dr. Ellis' Part D claims by kind of drug, 2024
- Generic327 claims96%
- Brand-name and other14 claims4%
Dr. Ellis' most prescribed drugs by claims, 2024
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. Ellis' Part D claims, 2024
- Opioids10%33 of 341 claims
- Antibiotics23%79 of 341 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1252024: 21370%
Drugs named by CMS: 9 in 2024, 6 in 2023.
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. John Ellis takes part in Medicare
Dr. Ellis 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. John Ellis received $183 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Ellis from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $183.
Companies that paid Dr. Ellis the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Ellis graduated from Lake Erie College of Osteopathic Medicine Bradenton Campus
Dr. Ellis graduated from Lake Erie College of Osteopathic Medicine Bradenton Campus in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Ellis'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) |
| 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. John Ellis
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. John Ellis' NPI number?
Dr. John Ellis' NPI number is 1003221037. It was assigned on June 28, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. John Ellis?
Dr. John Ellis is an emergency medicine physician in Great Falls, Montana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. John Ellis practice?
Dr. Ellis practices at 1101 26th St S, Great Falls, MT 59405. Dr. Ellis' primary practice is Benefis East Campus in Great Falls, Montana, part of Benefis Health System. Dmand AI also links Dr. Ellis to 2 hospitals and 6 medical groups.
What is Dr. John Ellis' office phone number?
The practice phone on file for Dr. Ellis is (406) 455-5000.
What is Dr. John Ellis' medical license number?
Dr. Ellis holds California license 22891, one of the licenses on file in 2 states.
Which states has Dr. John Ellis been licensed in?
Dmand AI has state licenses on file for Dr. Ellis in California and Florida.
Which hospitals is Dr. John Ellis affiliated with?
Dr. Ellis practices at Benefis East Campus in Great Falls, Montana. Dr. Ellis is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. Dmand AI links Dr. Ellis to 2 more hospitals.
What medical group is Dr. John Ellis part of?
Dr. Ellis is linked to Benefis Health System. Dmand AI links Dr. Ellis to 6 more medical groups.
Does Dr. John Ellis accept Medicare?
Yes. CMS data shows Dr. Ellis billed Medicare for 601 services in 2024, and Dr. Ellis accepts Medicare assignment.
How many Medicare patients does Dr. John Ellis see?
CMS counts 458 Medicare patients who saw Dr. Ellis in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. John Ellis bill to Medicare?
In 2024, Dr. Ellis' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. John Ellis go to medical school?
Dr. Ellis graduated from Lake Erie College of Osteopathic Medicine Bradenton Campus in 2014.
What drugs does Dr. John Ellis prescribe most?
In 2024 Medicare Part D data, Dr. Ellis' most prescribed drugs by claims were Ondansetron ODT, Ibuprofen and Cephalexin.
Has Dr. John Ellis received payments from drug or device companies?
CMS Open Payments shows $183 in general payments to Dr. Ellis from 1 company from 2020 to 2020. The largest total came from Inari Medical, Inc.
How long has Dr. John Ellis been practicing?
Dr. Ellis graduated from medical school in 2014, 12 years ago.
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