Elizabeth Ann O'Neill, MS ARNP-BC
Nurse Practitioner · Sioux Falls, SD
Elizabeth Ann O'Neill, MS ARNP-BC is a nurse practitioner with a practice address in Sioux Falls, South Dakota, and NPI 1215135348, issued on Jul 10, 2007. Check the license (South Dakota CP000514, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Ann O'Neill
- Credential
- MS ARNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- CP000514 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1000 E 23RD St, Sioux Falls, SD 57105
- Phone
- (605) 322-7334
- Enumerated
- Jul 10, 2007
- Record last updated
- Oct 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (605) 322-6738
- Medicaid ID
- 6833380 SD
- Medicare enrollment
- Enrolled (PECOS I20080723000643); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 465 in South Dakota → Look up another NPI →
Also registered at 1000 E 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Elizabeth Ann O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license CP000514Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average nurse practitioner in 2024
237 Medicare Part D claims for 45 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 18 claims were for opioids.
Most prescribed
- Potassium Chloride23 claims
- Eliquis22 claims
- Ondansetron Odt19 claims
- Diphenoxylate-Atropine16 claims
- Prochlorperazine Maleate15 claims
- Everolimus13 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.
Bills Medicare through one group practice
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Ann O'Neill among 465 nurse practitioner records in South Dakota
Elizabeth Ann O'Neill, MS ARNP-BC is one of 465 nurse practitioner records with a practice address in South Dakota. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 16% of them.
- NPI issued2007 · 16% of these records are older, 80% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2007 · median 2018 among the 331 with a school on file
- Record last updated2015 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
239 nurse practitioner records list a practice address in Sioux Falls
They are 239 of the 6,563 NPPES records with a practice address in Sioux Falls, and 465 nurse practitioner records in South Dakota.
All 465 in South Dakota → Every provider in Sioux Falls → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Suzanne Bakken, NPSioux Falls, SD 571051558309211
- Denise Boraas, CNPSioux Falls, SD 571051750396560
- Donna Dickey, CNPSioxu Falls, SD 571051558317628
- Lisa Duncan, CNPSioux Falls, SD 571051285600965
- Julie Elson, CNPSioux Falls, SD 571051306842034
- Nancy Foss, CNPSioux Falls, SD 571051932105590
- Melinda Frost, CNPSioux Falls, SD 571051144296930
- Karen Hanisch, FNPSioux Falls, SD 571051881647774
Common questions
What is Elizabeth Ann O'Neill, MS ARNP-BC's NPI number?
Elizabeth Ann O'Neill, MS ARNP-BC's National Provider Identifier (NPI) is 1215135348, issued on Jul 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Ann O'Neill, MS ARNP-BC located?
The NPPES record lists a practice address at 1000 E 23RD St, Sioux Falls, SD, 57105. Phone: (605) 322-7334. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Ann O'Neill, MS ARNP-BC's license?
NPPES lists South Dakota license number CP000514, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Ann O'Neill, MS ARNP-BC prescribe under Medicare Part D?
In 2024, Elizabeth Ann O'Neill, MS ARNP-BC had 237 Medicare Part D claims for 45 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.