NPPES file of Aug 9, 2026

Dianna Maria O'Neill

Nurse Practitioner · West Des Moines, IA

Dianna Maria O'Neill is a nurse practitioner with a practice address in West Des Moines, Iowa, and NPI 1891173548, issued on May 14, 2015. Check the license (Iowa A121525, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891173548
Name
Dianna Maria O'Neill
Primary taxonomy
Nurse Practitioner 363L00000X
License number
A121525 IA
Self-reported in NPPES; status is on the state search
Practice location
5950 University Ave Ste 205, West Des Moines, IA 50266
Phone
(515) 875-9290
Enumerated
May 14, 2015
Record last updated
Jan 2, 2024
Fax
(515) 875-9291
Medicare enrollment
Enrolled (PECOS I20150724010071); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →

Also registered at 5950 University Ave Ste 205

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lyndsey Buhlmann, PA-CPhysician Assistant1356989891
  2. Katelyn Buhrow, MDObstetrics & Gynecology Physician1073957395
  3. Wanakee Carr, M.D.Obstetrics & Gynecology Physician1255742557
  4. Steven Keller, M.D.Obstetrics & Gynecology Physician1306831078
  5. Jenna Kubat, MDObstetrics & Gynecology Physician1437453321
  6. Evan OlsonObstetrics & Gynecology Physician1386140911

Verify Dianna Maria O'Neill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license A121525    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average nurse practitioner in 2024

37 Medicare Part D claims for 23 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Dianna O'Neill37
  2. Specialty average1,109

Most prescribed

  1. Clobetasol Propionate11 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: $169.24

9 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dianna O'Neill$169.24
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Kdp Management Services PLLCWest Des Moines, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dianna Maria O'Neill among 1,294 nurse practitioner records in Iowa

Dianna Maria O'Neill is one of 1,294 nurse practitioner records with a practice address in Iowa. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 44% of them.

  • NPI issued2015 · 44% of these records are older, 53% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2014 · median 2018 among the 873 with a school on file
  • Record last updated2024 · 46% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

77 nurse practitioner records list a practice address in West Des Moines

They are 77 of the 2,201 NPPES records with a practice address in West Des Moines, and 1,294 nurse practitioner records in Iowa.

All 1,294 in Iowa → Every provider in West Des Moines → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sarah Biscoglia, ARNPWest Des Moines, IA 502661487680195
  2. Sarah Brown, ARNPWest Des Moines, IA 502661730287772
  3. Bruce Burnett, A.R.N.P.C.West Des Moines, IA 502661699773945
  4. Kimberly Cain, ARNPWest Des Moines, IA 502661417919739
  5. Beth Chia, A.R.N.P.West Des Moines, IA 502661245212919
  6. Hermien Creger, DNPWest Des Moines, IA 502661477503621
  7. Joyce Harpham, ARNPWest Des Moines, IA 502661639244106
  8. Jennifer Kintzle, ARNPWest Des Moines, IA 502661427021617

Common questions

What is Dianna Maria O'Neill's NPI number?

Dianna Maria O'Neill's National Provider Identifier (NPI) is 1891173548, issued on May 14, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Dianna Maria O'Neill located?

The NPPES record lists a practice address at 5950 University Ave Ste 205, West Des Moines, IA, 50266. Phone: (515) 875-9290. Providers update this record themselves, so call before visiting.

How can I verify Dianna Maria O'Neill's license?

NPPES lists Iowa license number A121525, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Dianna Maria O'Neill prescribe under Medicare Part D?

In 2024, Dianna Maria O'Neill had 37 Medicare Part D claims for 23 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.