Dr. Nicholas O'Neill, DO
- Medicare services, 2024
- 6,282
- Medicare patients, 2024
- 521
- Part D claims, 2024
- 744
- Hospital affiliations
- 5
- Industry payments
- $41,340
- Practice address
- 3000 32nd Ave S, Fargo, ND 58103
- Practice phone
- Call (701) 364-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Essentia Health-Fargo
Surgery Center - Not Medicare-Certified · Fargo, North Dakota
Find Dr. O'Neill'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. Nicholas O'Neill is an orthopedic surgeon in Fargo, North Dakota
Dr. O'Neill practices at Essentia Health-Fargo in Fargo, North Dakota.
Dr. O'Neill's NPI, 1437509387, was assigned on June 21, 2016. Dr. O'Neill holds South Carolina license 83559.
- NPI
- 1437509387NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224321922
- NPI enumeration date
- June 21, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (701) 364-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas O'Neill practices at Essentia Health-Fargo in Fargo, North Dakota
Dr. O'Neill's primary practice is Essentia Health-Fargo, at 3000 32nd Ave S, Fargo, ND 58103. The practice phone is (701) 364-8000.
- Essentia Health-Fargo3000 32nd Ave S, Fargo, ND 58103Phone(701) 364-8000
Source: Dmand AI Affiliation Data
Dr. Nicholas O'Neill is affiliated with 7 sites of care and 4 medical groups
Dr. O'Neill's primary practice is Essentia Health-Fargo in Fargo, North Dakota. Dr. O'Neill is also affiliated with Essentia Health-Fargo. The medical group on file is Essentia Health-Fargo. Dmand AI also links Dr. O'Neill to 4 more hospitals, 3 medical groups and 1 breast imaging center, 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. Nicholas O'Neill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Neill practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essentia Health-Fargo | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas O'Neill is one of 64 orthopedic surgeons in North Dakota
Orthopaedic surgery is Dr. O'Neill's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dmand AI has Dr. O'Neill's licenses on file in 2 states: South Carolina and Michigan.
Specialties and state licenses
- Orthopaedic surgery, South CarolinaPrimary
- Michigan license
Orthopedic surgeons near Dr. O'Neill
Counts of orthopedic surgeons 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. Nicholas O'Neill billed Medicare for 6,282 services in 2024
CMS data shows 6,282 Medicare services from Dr. O'Neill across 26 procedure codes in 2024, for 521 Medicare patients. Medicare paid $198,331 for them.
Dr. O'Neill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 722024: 4,4686106%
- Imaging
- 2023: 342024: 7302047%
- Office and hospital visits
- 2023: 2002024: 464132%
- Tests and treatments
- 2023: 02024: 334
- Surgery
- 2023: 872024: 286229%
Where Dr. O'Neill's Medicare services took place, 2024
- In an office6,15798%
- In a facility1252%
Dr. O'Neill compared with the North Dakota median for orthopedic surgeons, 2024
- Dr. O'Neill
- North Dakota median
- Medicare services
- 6,282vs 43614.4 times
- Medicare patients
- 521vs 2512.1 times
- Part D claims
- 703vs 828.6 times
Medians across 66 orthopedic surgeons in North Dakota with Dmand AI profiles that report each measure.
Dr. O'Neill'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. O'Neill and other orthopedic surgeons in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas O'Neill treated 521 Medicare patients in 2024, average age 74
CMS counts 521 Medicare patients who saw Dr. O'Neill in 2024. The largest group is 65 to 74, with 288 patients. 75% of them have arthritis, and 75% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Neill's median patient age at 72, with 59% women.
Dr. O'Neill's Medicare patients by age, 2024
Dr. O'Neill's Medicare patients by sex, 2024
- Women31460%
- Men20740%
Chronic conditions among Dr. O'Neill's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease26%
- Diabetes26%
- Mood disorders24%
- Anxiety23%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Neill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas O'Neill wrote 744 Medicare Part D claims in 2024
In 2024, Dr. O'Neill wrote 744 Medicare Part D claims for 232 patients. 98% of them were for generic drugs. CMS names the drug for 703 of them, across 13 drugs with 11 or more claims each, at $6,842 in total drug cost. In 2023, CMS named 86 claims across 3 drugs.
Dr. O'Neill's Part D claims by kind of drug, 2024
- Generic732 claims98%
- Brand-name12 claims2%
Dr. O'Neill'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'Neill's Part D claims, 2024
- Opioids11%81 of 744 claims
- Antibiotics25%184 of 744 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: 862024: 703717%
Drugs named by CMS: 13 in 2024, 3 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
Dr. Nicholas O'Neill ranks in the 74th percentile for hip replacement in Medicare
Dr. O'Neill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 28 procedures of hip replacement by Dr. O'Neill, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. O'Neill ranks in Medicare procedure volume
- Knee replacement
- 63rd percentile29 procedures
- Hip replacement
- 74th percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nicholas O'Neill received $41,340 in industry payments from 2016 to 2025
CMS Open Payments shows 193 general payments to Dr. O'Neill from 14 drug and device companies from 2016 to 2025. Education make up the largest share, 53% of the total. Smith & Nephew, Inc. paid the most, $17,810.
General payments to Dr. O'Neill by program year, 2016 to 2025
General payments to Dr. O'Neill by kind, 2016 to 2025
- Education$22,10853%
- Food and beverage$10,25625%
- Travel and lodging$8,92922%
- Consulting fees$470%
Companies that paid Dr. O'Neill the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas O'Neill'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)Doctors and Clinicians Utilization Data (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. Nicholas O'Neill
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. Nicholas O'Neill's NPI number?
Dr. Nicholas O'Neill's NPI number is 1437509387. It was assigned on June 21, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas O'Neill?
Dr. Nicholas O'Neill is an orthopedic surgeon in Fargo, North Dakota. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Nicholas O'Neill practice?
Dr. O'Neill practices at 3000 32nd Ave S, Fargo, ND 58103. Dr. O'Neill's primary practice is Essentia Health-Fargo in Fargo, North Dakota. Dmand AI also links Dr. O'Neill to 4 hospitals, 3 medical groups and 1 breast imaging center.
What is Dr. Nicholas O'Neill's office phone number?
The practice phone on file for Dr. O'Neill is (701) 364-8000.
What is Dr. Nicholas O'Neill's medical license number?
Dr. O'Neill holds South Carolina license 83559, one of the licenses on file in 2 states.
Which states has Dr. Nicholas O'Neill been licensed in?
Dmand AI has state licenses on file for Dr. O'Neill in South Carolina and Michigan.
Which hospitals is Dr. Nicholas O'Neill affiliated with?
Dr. O'Neill is affiliated with Essentia Health-Fargo. Dmand AI links Dr. O'Neill to 4 more hospitals.
What medical group is Dr. Nicholas O'Neill part of?
Dr. O'Neill is linked to Essentia Health-Fargo. Dmand AI links Dr. O'Neill to 3 more medical groups.
Does Dr. Nicholas O'Neill accept Medicare?
Yes. CMS data shows Dr. O'Neill billed Medicare for 6,282 services in 2024, and Dr. O'Neill accepts Medicare assignment.
How many Medicare patients does Dr. Nicholas O'Neill see?
CMS counts 521 Medicare patients who saw Dr. O'Neill in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Nicholas O'Neill bill to Medicare?
In 2024, Dr. O'Neill's most billed Medicare services were injected or infused drug (J7328), injected or infused drug (J3301) and diagnostic imaging (73501).
What drugs does Dr. Nicholas O'Neill prescribe most?
In 2024 Medicare Part D data, Dr. O'Neill's most prescribed drugs by claims were Celecoxib, Ondansetron HCl and Cefadroxil.
Has Dr. Nicholas O'Neill received payments from drug or device companies?
CMS Open Payments shows $41,340 in general payments to Dr. O'Neill from 14 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Nicholas O'Neill been practicing?
Dr. O'Neill graduated from medical school in 2016, 10 years ago.
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