Dr. Brian E. O'Hara, MD
- Medicare services, 2023
- 31
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 5,584
- Hospital affiliations
- 2
- Industry payments
- $30,600
- Practice address
- 2500 Fairway Street, Dickinson, ND 58601
- Practice phone
- Call (701) 456-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Hara'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.
Dr. Brian E. O'Hara is an internist in Dickinson, North Dakota
Dr. O'Hara practices at CHI St. Alexius Health Dickinson in Dickinson, North Dakota, part of CommonSpirit Health.
Dr. O'Hara's NPI, 1568459113, was assigned on September 29, 2005. Dr. O'Hara graduated from University of North Dakota School of Medicine in 1985. Dr. O'Hara holds North Dakota license 5807.
- NPI
- 1568459113NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577469071
- NPI enumeration date
- September 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (701) 456-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian E. O'Hara practices at CHI St. Alexius Health Dickinson in Dickinson, North Dakota
Dr. O'Hara's primary practice is CHI St. Alexius Health Dickinson, at 2500 Fairway Street, Dickinson, ND 58601 in Stark County. The practice phone is (701) 456-4000.
- CHI St. Alexius Health Dickinson2500 Fairway Street, Dickinson, ND 58601 · Stark CountyPhone(701) 456-4000
Source: Dmand AI Affiliation Data
Dr. Brian E. O'Hara is affiliated with 5 sites of care and 3 medical groups
Dr. O'Hara's primary practice is CHI St. Alexius Health Dickinson in Dickinson, North Dakota, part of CommonSpirit Health. Dr. O'Hara is also affiliated with CHI St. Alexius Health Bismarck. The medical group on file is CHI St. Alexius Health Dickinson. Dmand AI also links Dr. O'Hara to 2 more skilled nursing facilities, 2 medical groups and 1 home health agency, 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. Brian E. O'Hara's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Hara practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHI St. Alexius Health Dickinson | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian E. O'Hara is one of 193 internists in North Dakota
Internal medicine is Dr. O'Hara's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. O'Hara is licensed in North Dakota.
Specialties and state licenses
- Internal medicine, North DakotaPrimary
Internists near Dr. O'Hara
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. Brian E. O'Hara billed Medicare for 31 services in 2023
CMS data shows 31 Medicare services from Dr. O'Hara across 2 procedure codes in 2023, for 27 Medicare patients. Medicare paid $2,341 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. O'Hara's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3672023: 3192%
- Tests and treatments
- 2022: 172023: 0100%
Dr. O'Hara compared with the North Dakota median for internists, 2023
- Dr. O'Hara
- North Dakota median
- Medicare services
- 31vs 44693% below
- Medicare patients
- 27vs 26490% below
- Part D claims
- 4,845vs 23121.0 times
Medians across 192 internists in North Dakota with Dmand AI profiles that report each measure.
Dr. O'Hara's most billed Medicare procedure codes, 2023
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. O'Hara and other internists in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian E. O'Hara treated 27 Medicare patients in 2024, average age 81
CMS counts 27 Medicare patients who saw Dr. O'Hara in 2024. The largest group is 85 and over, with 11 patients. 75% of them have high blood pressure, and 63% have alzheimer's and dementia. Their average risk score is 1.89, 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. O'Hara's median patient age at 65, with 42% women.
Dr. O'Hara's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. O'Hara's Medicare patients by sex, 2024
- Women1659%
- Men1141%
Chronic conditions among Dr. O'Hara's Medicare patients, 2024
- High blood pressure75%
- Alzheimer's and dementia63%
- High cholesterol63%
- Arthritis59%
- Anxiety48%
- Depression44%
- Heart failure44%
- Mood disorders44%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Hara's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian E. O'Hara wrote 5,584 Medicare Part D claims in 2024
In 2024, Dr. O'Hara wrote 5,584 Medicare Part D claims for 237 patients. 77% of them were for generic drugs. CMS names the drug for 4,845 of them, across 110 drugs with 11 or more claims each, at $744,118 in total drug cost. In 2023, CMS named 4,563 claims across 104 drugs.
Dr. O'Hara's Part D claims by kind of drug, 2024
- Generic4,273 claims77%
- Brand-name1,238 claims22%
- Other73 claims1%
Dr. O'Hara's 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. O'Hara's Part D claims, 2024
- Opioids3%195 of 5,584 claims
- Antibiotics1%50 of 5,584 claims
- Antipsychotics, patients 65 and over0%14 of 5,584 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: 4,5632024: 4,8456%
Drugs named by CMS: 110 in 2024, 104 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. Brian E. O'Hara takes part in Medicare
Dr. O'Hara 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. Brian E. O'Hara received $30,600 in industry payments from 2016 to 2025
CMS Open Payments shows 468 general payments to Dr. O'Hara from 30 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 68% of the total. Janssen Pharmaceuticals, Inc paid the most, $25,506.
General payments to Dr. O'Hara by program year, 2016 to 2025
General payments to Dr. O'Hara by kind, 2016 to 2025
- Speaker and faculty fees$20,86568%
- Food and beverage$6,24620%
- Travel and lodging$3,46811%
- Education$220%
Companies that paid Dr. O'Hara the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian E. O'Hara graduated from University of North Dakota School of Medicine
Dr. O'Hara graduated from University of North Dakota School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian E. O'Hara'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. Brian E. O'Hara
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. Brian E. O'Hara's NPI number?
Dr. Brian E. O'Hara's NPI number is 1568459113. It was assigned on September 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian E. O'Hara?
Dr. Brian E. O'Hara is an internist in Dickinson, North Dakota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Brian E. O'Hara practice?
Dr. O'Hara practices at 2500 Fairway Street, Dickinson, ND 58601. Dr. O'Hara's primary practice is CHI St. Alexius Health Dickinson in Dickinson, North Dakota, part of CommonSpirit Health. Dmand AI also links Dr. O'Hara to 2 skilled nursing facilities, 2 medical groups and 1 home health agency.
What is Dr. Brian E. O'Hara's office phone number?
The practice phone on file for Dr. O'Hara is (701) 456-4000.
What is Dr. Brian E. O'Hara's medical license number?
Dr. O'Hara holds North Dakota license 5807.
Which hospitals is Dr. Brian E. O'Hara affiliated with?
Dr. O'Hara practices at CHI St. Alexius Health Dickinson in Dickinson, North Dakota. Dr. O'Hara is also affiliated with CHI St. Alexius Health Bismarck.
What medical group is Dr. Brian E. O'Hara part of?
Dr. O'Hara is linked to CHI St. Alexius Health Dickinson. Dmand AI links Dr. O'Hara to 2 more medical groups.
Does Dr. Brian E. O'Hara accept Medicare?
Yes. CMS data shows Dr. O'Hara billed Medicare for 31 services in 2023, and Dr. O'Hara accepts Medicare assignment.
How many Medicare patients does Dr. Brian E. O'Hara see?
CMS counts 27 Medicare patients who saw Dr. O'Hara in 2024, with an average age of 81.
What services does Dr. Brian E. O'Hara bill to Medicare?
In 2023, Dr. O'Hara's most billed Medicare services were hospital inpatient care (99232) and hospital inpatient care (99239).
Show 4 more questionsShow fewer questions
Where did Dr. Brian E. O'Hara go to medical school?
Dr. O'Hara graduated from University of North Dakota School of Medicine in 1985.
What drugs does Dr. Brian E. O'Hara prescribe most?
In 2024 Medicare Part D data, Dr. O'Hara's most prescribed drugs by claims were Levothyroxine Sodium, Rosuvastatin Calcium and Allopurinol.
Has Dr. Brian E. O'Hara received payments from drug or device companies?
CMS Open Payments shows $30,600 in general payments to Dr. O'Hara from 30 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Brian E. O'Hara been practicing?
Dr. O'Hara graduated from medical school in 1985, 41 years ago.
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