NPPES file of Aug 9, 2026

William E. Decker, MD

Radiation Oncology Physician · Sedalia, MO

William E. Decker, MD is a radiation oncology physician with a practice address in Sedalia, Missouri, and NPI 1457349755, issued on Oct 11, 2005. Check the license (Missouri 2004005486, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457349755
Name
William E. Decker
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
2004005486 MO
Self-reported in NPPES; status is on the state search
Practice location
601 E 14TH St, Sedalia, MO 65301
Phone
(660) 827-9538
Enumerated
Oct 11, 2005
Record last updated
Feb 17, 2025
Fax
(660) 826-7698
Medicaid ID
208741306 MO
Medicare enrollment
Enrolled (PECOS I20040603001045); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1995
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 601 E 14TH St

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

  1. Kathy Ahern, RN BSN CDEDiabetes Educator Registered Nurse1407013352
  2. Elizabeth Ambrose, M.S., CCC-SLPSpeech-Language Pathologist1386784403
  3. Chase BelnapCertified Registered Nurse Anesthetist1396129722
  4. Cassandra CaedoAdvanced Practice Midwife1013765304
  5. Janet Chance-Hetzler, DNP, MSN, RN, APRNAdult Health Clinical Nurse Specialist1003278276
  6. Logan Chronister, FNP-BCNurse Practitioner1245037217

Verify William E. Decker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2004005486
    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 Missouri 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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31% more Medicare Part D claims than the average radiation oncology physician in 2024

176 Medicare Part D claims for 67 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 11 claims were for opioids.

  1. William Decker176
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl46 claims
  2. Lidocaine Hcl Viscous16 claims
  3. Pantoprazole Sodium12 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.

The MIPS final score for 2023 (Medicare payment program): 95.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score99.3
  2. Costout of 100 · 30%86.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $247.01

7 payments; by number, the most common kind was food and beverage; the largest payer was Brainlab, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Decker$247.01
  2. Specialty average$1,897.85

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

Bills Medicare through 2 group practices

  1. Missouri Cancer Associates LLCColumbia, MO
  2. The Curators OF The University OF MissouriColumbia, MO

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

William E. Decker among 136 radiation oncology physician records in Missouri

William E. Decker, MD is one of 136 radiation oncology physician records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1995 · median 2004 among the 96 with a school on file
  • Record last updated2025 · 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 2085R0001X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Missouri

There are 136 radiation oncology physician records in Missouri.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Mohamed Abdelhakiem, MDColumbia, MO 652121073017216
  2. Steven Gresswell, M.D.Columbia, MO 652121932548484
  3. Bo Lu, MD, PHDColumbia, MO 652121245314343
  4. Steven Westgate, M.D.Columbia, MO 652031750379053
  5. Gregory Biedermann, MDColumbia, MO 652011851463756
  6. Mark Bryer, MDColumbia, MO 652011144217324
  7. Reed Cope, MDColumbia, MO 652011801214267
  8. Roger Good, M.D.Columbia, MO 652011881652915

Common questions

What is William E. Decker, MD's NPI number?

William E. Decker, MD's National Provider Identifier (NPI) is 1457349755, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William E. Decker, MD located?

The NPPES record lists a practice address at 601 E 14TH St, Sedalia, MO, 65301. Phone: (660) 827-9538. Providers update this record themselves, so call before visiting.

How can I verify William E. Decker, MD's license?

NPPES lists Missouri license number 2004005486, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William E. Decker, MD prescribe under Medicare Part D?

In 2024, William E. Decker, MD had 176 Medicare Part D claims for 67 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is William E. Decker, MD's MIPS final score?

The 2023 MIPS final score is 95.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.