NPPES file of Aug 9, 2026

David W.r. Dierks, D.O.

Emergency Medicine Physician · Davenport, IA

David W.r. Dierks, D.O. is an emergency medicine physician with a practice address in Davenport, Iowa, and NPI 1457519191, issued on May 29, 2008. Check the license (Iowa 4042, as entered in NPPES) on the Iowa Board of Medicine; 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
1457519191
Name
David W.r. Dierks
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
4042 IA
R-8344 IA
Self-reported in NPPES; status is on the state search
Practice location
1227 E Rusholme St, Davenport, IA 52803
Phone
(563) 421-7701
Enumerated
May 29, 2008
Record last updated
Apr 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1227 E Rusholme St

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

  1. Shivon Abdullah, MDAnesthesiology Physician1538394150
  2. Abiy Abebe, M.DHospitalist Physician1154855104
  3. Ifeoma Achebe, MDInternal Medicine Physician1578085700
  4. Gaurav Ahuja, M.D.Internal Medicine Physician1518144195
  5. Omar Alazem, DOEmergency Medicine Physician1780320697
  6. Andrea Archer, N.P.Acute Care Nurse Practitioner1023145208

Verify David W.r. Dierks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 4042
    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
Open 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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About as many Medicare Part D claims as the average emergency medicine physician in 2024

226 Medicare Part D claims for 160 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 61 claims were for opioids.

  1. David Dierks226
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen55 claims
  2. Prednisone19 claims
  3. Cephalexin14 claims
  4. Cyclobenzaprine Hcl13 claims
  5. Sulfamethoxazole-Trimethoprim12 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.

David W.r. Dierks among 509 emergency medicine physician records in Iowa

David W.r. Dierks, D.O. is one of 509 emergency medicine physician records with a practice address in Iowa. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 47% of them.

  • NPI issued2008 · 47% of these records are older, 50% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2021 · 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 207P00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 emergency medicine physician records list a practice address in Davenport

They are 25 of the 2,058 NPPES records with a practice address in Davenport, and 509 emergency medicine physician records in Iowa.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Morgan Barnell, M.D.Davenport, IA 528031821401506
  2. Steven Bashor, D.O.Davenport, IA 528031730140435
  3. Michael Craddick, D.O.Davenport, IA 528031831503820
  4. Destinee Delemos, MDDavenport, IA 528031356635858
  5. Charles Holt, D.O.Davenport, IA 528031477638005
  6. Jacqueline Kitchen, M.D.Davenport, IA 528031700144813
  7. Eric MohrDavenport, IA 528031477647469
  8. Christopher Posey, D.O.Davenport, IA 528031982666301

Common questions

What is David W.r. Dierks, D.O.'s NPI number?

David W.r. Dierks, D.O.'s National Provider Identifier (NPI) is 1457519191, issued on May 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is David W.r. Dierks, D.O. located?

The NPPES record lists a practice address at 1227 E Rusholme St, Davenport, IA, 52803. Phone: (563) 421-7701. Providers update this record themselves, so call before visiting.

How can I verify David W.r. Dierks, D.O.'s license?

NPPES lists Iowa license number 4042, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David W.r. Dierks, D.O. prescribe under Medicare Part D?

In 2024, David W.r. Dierks, D.O. had 226 Medicare Part D claims for 160 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.