NPPES file of Aug 9, 2026

Tyler David Aasen, D.O.

Gastroenterology Physician · West Des Moines, IA

Tyler David Aasen, D.O. is a gastroenterology physician with a practice address in West Des Moines, Iowa, and NPI 1740690205, issued on May 5, 2014. Check the license (Iowa DO-05509, 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
1740690205
Name
Tyler David Aasen
Credential
D.O.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
DO-05509 IA
Self-reported in NPPES; status is on the state search
Practice location
5950 University Ave Ste 221, West Des Moines, IA 50266
Phone
(515) 875-9115
Enumerated
May 5, 2014
Record last updated
Dec 11, 2023
Fax
(515) 875-9117
Medicare enrollment
Enrolled (PECOS I20200522000106); 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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Also registered at 5950 University Ave Ste 221

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

  1. Amber Dvorak, ARNPNurse Practitioner1275073108
  2. Jonathan Fahler, DOGastroenterology Physician1780905729
  3. Kjersten Ferriss, FNP-CNurse Practitioner1679019178
  4. Christopher Gibbs, MDGastroenterology Physician1619021144
  5. Shawn Hancock, D.O.Gastroenterology Physician1467410720
  6. Clayton Jordan, D.O.Gastroenterology Physician1518306323

Verify Tyler David Aasen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license DO-05509
    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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22% more Medicare Part D claims than the average gastroenterology physician in 2024

986 Medicare Part D claims for 475 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Tyler Aasen986
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium258 claims
  2. Omeprazole149 claims
  3. Peg 3350-Electrolyte146 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf142 claims
  5. Famotidine36 claims
  6. Colestipol Hcl16 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: $381.53

6 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tyler Aasen$381.53
  2. Specialty average$5,015.95

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. The Iowa Clinic PCWest Des Moines, IA

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

Tyler David Aasen among 122 gastroenterology physician records in Iowa

Tyler David Aasen, D.O. is one of 122 gastroenterology physician records with a practice address in Iowa. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 20% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2014 · median 2000 among the 84 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Iowa

There are 122 gastroenterology physician records in Iowa.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Laura Dakovich, DOWest Des Moines, IA 502661992826432
  2. Jonathan Fahler, DOWest Des Moines, IA 502661780905729
  3. Christopher Gibbs, MDWest Des Moines, IA 502661619021144
  4. Jon Gibson, M.D.West Des Moines, IA 502661720072507
  5. Joel Hade, M.D.West Des Moines, IA 502661184618720
  6. Shawn Hancock, D.O.West Des Moines, IA 502661467410720
  7. Clayton Jordan, D.O.West Des Moines, IA 502661518306323
  8. Charles Larson, M.D.West Des Moines, IA 502661518952209

Common questions

What is Tyler David Aasen, D.O.'s NPI number?

Tyler David Aasen, D.O.'s National Provider Identifier (NPI) is 1740690205, issued on May 5, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Tyler David Aasen, D.O. located?

The NPPES record lists a practice address at 5950 University Ave Ste 221, West Des Moines, IA, 50266. Phone: (515) 875-9115. Providers update this record themselves, so call before visiting.

How can I verify Tyler David Aasen, D.O.'s license?

NPPES lists Iowa license number DO-05509, 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 Tyler David Aasen, D.O. prescribe under Medicare Part D?

In 2024, Tyler David Aasen, D.O. had 986 Medicare Part D claims for 475 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.