NPPES file of Aug 9, 2026

William Travis Dierenfeldt, MD

Gastroenterology Physician · Manhattan, KS

William Travis Dierenfeldt, MD is a gastroenterology physician with a practice address in Manhattan, Kansas, and NPI 1477591634, issued on Jun 2, 2006. Check the license (Kansas 04-28673, as entered in NPPES) on the Kansas State Board of Healing Arts; 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
1477591634
Name
William Travis Dierenfeldt
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
04-28673 KS
Self-reported in NPPES; status is on the state search
Practice location
1325 Research Park Dr, Manhattan, KS 66502
Phone
(785) 537-2651
Enumerated
Jun 2, 2006
Record last updated
Jan 5, 2026
Medicare enrollment
Enrolled (PECOS I20101027000462); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 1994
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 1325 Research Park Dr

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

  1. Michelle Boggs, APRNPsychiatric/Mental Health Nurse Practitioner1750835070
  2. Holly Brannen, APRN-CNurse Practitioner1285034348
  3. Kaitlynn Christiansen, MDFamily Medicine Physician1558862490
  4. Scott Coonrod, MDInternal Medicine Physician1952379869
  5. Samantha Davis, DNPFamily Medicine Physician1548911605
  6. Brett Dawes, APRNNurse Practitioner1366972390

Verify William Travis Dierenfeldt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 04-28673    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 Kansas 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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5% fewer Medicare Part D claims than the average gastroenterology physician in 2024

767 Medicare Part D claims for 195 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. William Dierenfeldt767
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium340 claims
  2. Omeprazole140 claims
  3. Famotidine25 claims
  4. Budesonide Dr21 claims
  5. Dicyclomine Hcl21 claims
  6. Sucralfate20 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

  1. Cotton-O'Neil Clinic Revocable TrustManhattan, KS

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

Gastroenterology Physician providers in Kansas

There are 111 gastroenterology physician records in Kansas.

All 111 in Kansas → Every provider in Manhattan →

Other gastroenterology physician records in Kansas

  1. Khalil Abuamr, MDTopeka, KS1811203292
  2. James Allen, M.D.Overland Park, KS1922489244
  3. William Alsop, MDSalina, KS1043275886
  4. Phani Ashok Attaluri, M.D.Olathe, KS1417066499
  5. Madeline Vithya Barnaba Durairaj, MDKansas City, KS1316696610
  6. James BarnettKansas City, KS1023691714
  7. Thomas Barnett, M.D.Overland Park, KS1306998240
  8. Sanket Basida, MDKansas City, KS1821720970
  9. Curtis Baum, MDTopeka, KS1861401390
  10. John Bonino, M.D.Kansas City, KS1720297419

Common questions

What is William Travis Dierenfeldt, MD's NPI number?

William Travis Dierenfeldt, MD's National Provider Identifier (NPI) is 1477591634, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Travis Dierenfeldt, MD located?

The NPPES record lists a practice address at 1325 Research Park Dr, Manhattan, KS, 66502. Phone: (785) 537-2651. Providers update this record themselves, so call before visiting.

How can I verify William Travis Dierenfeldt, MD's license?

NPPES lists Kansas license number 04-28673, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Travis Dierenfeldt, MD prescribe under Medicare Part D?

In 2024, William Travis Dierenfeldt, MD had 767 Medicare Part D claims for 195 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.

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.