Larry J. Oneill, D.M.D.
General Practice Dentistry · Elizabeth, CO
Larry J. Oneill, D.M.D. is a general practice dentistry with a practice address in Elizabeth, Colorado, and NPI 1174521348, issued on Jul 12, 2005. Check the license (Colorado 7544, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Larry J. Oneill
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 7544 CO
Self-reported in NPPES; status is on the state search - Practice location
- 779 Crossroads CR, Elizabeth, CO 80107
- Phone
- (303) 646-3935
- Enumerated
- Jul 12, 2005
- Record last updated
- Apr 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (303) 379-5380
- Entity
- Type 1 · individual
Verify Larry J. Oneill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 7544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average general practice dentistry in 2024
36 Medicare Part D claims for 31 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin20 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: $112.07
2 payments; by number, the most common kind was education; the largest payer was Zest Holdings, LLC. The 41,669 providers of this specialty with any payment received $597.01 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.
2 general practice dentistry records list a practice address in Elizabeth
They are 2 of the 115 NPPES records with a practice address in Elizabeth, and 2,488 general practice dentistry records in Colorado.
All 2 in Elizabeth → All 2,488 in Colorado → Every provider in Elizabeth →
Other general practice dentistry records in Colorado
- Kathryn Aasen, D.D.S.Usaf Academy, CO1508816109
- Danny Abboud, DDSBoulder, CO1285811679
- Andrew Abdelnour, DMDBroomfield, CO1689823346
- Anna Abele, DMDLakewood, CO1477125185
- Sally Abouassaf, DDSParker, CO1659677805
- Alexander Acevedo, D.D.S.Westminster, CO1013131093
- Mayya Acherkan, D.D.S.Greenwood Village, CO1720124241
- Jess Adams, DDSColorado Springs, CO1033315627
- Larry Adams, DDSColorado Springs, CO1376545046
- Nana Adu AdjeiDenver, CO1750146668
Common questions
What is Larry J. Oneill, D.M.D.'s NPI number?
Larry J. Oneill, D.M.D.'s National Provider Identifier (NPI) is 1174521348, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Larry J. Oneill, D.M.D. located?
The NPPES record lists a practice address at 779 Crossroads CR, Elizabeth, CO, 80107. Phone: (303) 646-3935. Providers update this record themselves, so call before visiting.
How can I verify Larry J. Oneill, D.M.D.'s license?
NPPES lists Colorado license number 7544, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Larry J. Oneill, D.M.D. prescribe under Medicare Part D?
In 2024, Larry J. Oneill, D.M.D. had 36 Medicare Part D claims for 31 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.