David Oneill, DO
Family Medicine Physician · Belleville, IL
David Oneill, DO is a family medicine physician with a practice address in Belleville, Illinois, and NPI 1922092394, issued on Aug 31, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Oneill
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 311 W Lincoln St Ste 200, Belleville, IL 62220
- Phone
- (618) 213-7943
- Enumerated
- Aug 31, 2005
- Entity
- Type 1 · individual
Also registered at 311 W Lincoln St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wallace Abel, MDFamily Medicine Physician1003808858
- Douglas Despain, MDFamily Medicine Physician1275525024
- Maegan Korte, FNP-CFamily Nurse Practitioner1972903862
- Frances Perkins, PA-CPhysician Assistant1972778710
- James Wade, MDFamily Medicine Physician1386640399
- Melinda Walker, DOFamily Medicine Physician1306838156
Verify David Oneill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
5.4 times the Medicare Part D claims of the average family medicine physician in 2024
18,922 Medicare Part D claims for 1,274 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 553 claims were for opioids.
Most prescribed
- Atorvastatin Calcium956 claims
- Amlodipine Besylate932 claims
- Levothyroxine Sodium727 claims
- Losartan Potassium638 claims
- Metoprolol Succinate539 claims
- Montelukast Sodium457 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $823.13
43 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Southern Illinois Health Care Foundation IncEast Saint Louis, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
44 family medicine physician records list a Belleville practice address
They are 44 of the 1,404 NPPES records with a Belleville practice address, and 5,925 family medicine physician records in Illinois.
All 44 in Belleville → All 5,925 in Illinois → Every provider in Belleville →
Other family medicine physician records in Illinois
- Jon Aagaard, MDWheaton, IL1750496923
- Napoleon Abando, MDWoodstock, IL1003972753
- Nikka Abaricia, MDChicago, IL1790366342
- Mohemmed AbbasChicago, IL1609612522
- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ashraf Abdeljaber, M.DNormal, IL1023472636
- Ahmed Abdelkader, MDChicago, IL1659104230
Common questions
What is David Oneill, DO's NPI number?
David Oneill, DO's National Provider Identifier (NPI) is 1922092394, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Oneill, DO located?
The NPPES record lists a practice address at 311 W Lincoln St Ste 200, Belleville, IL, 62220. Phone: (618) 213-7943. Providers update this record themselves, so call before visiting.
How can I verify David Oneill, DO's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Oneill, DO prescribe under Medicare Part D?
In 2024, David Oneill, DO had 18,922 Medicare Part D claims for 1,274 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.