NPPES file of Aug 9, 2026

Ruth A. Decker, MD

Surgery Physician · Chesterfield, MO

Ruth A. Decker, MD is a surgery physician with a practice address in Chesterfield, Missouri, and NPI 1538145552, issued on Dec 21, 2005. Check the license (Missouri R6H10, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538145552
Name
Ruth A. Decker
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
R6H10 MO
Self-reported in NPPES; status is on the state search
Practice location
224 S Woods Mill RD, Chesterfield, MO 63017
Phone
(314) 469-1300
Enumerated
Dec 21, 2005
Record last updated
Apr 15, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(314) 878-7661
Medicare enrollment
Enrolled (PECOS I20071109000012); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1986
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 224 S Woods Mill RD

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

  1. Patricia Abele, NPFamily Nurse Practitioner1265418057
  2. Jeremy Beatty, O.DOptometrist1225198013
  3. Keith Bernstein, MDRheumatology Physician1447273727
  4. Leanne Bockstruck, PHARM.D.Pharmacist1225918253
  5. Kae Chang, MDInternal Medicine Physician1316910243
  6. Imran Chishti, M.D.Psychiatry Physician1740220557

Verify Ruth A. 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 R6H10
    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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46% fewer Medicare Part D claims than the average surgery physician in 2024

79 Medicare Part D claims for 35 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 12 claims were for opioids.

  1. Ruth Decker79
  2. Specialty average147

Most prescribed

  1. Levothyroxine Sodium40 claims
  2. Hydrocodone-Acetaminophen12 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: $59.29

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ruth Decker$59.29
  2. Specialty average$3,513.80

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

Ruth A. Decker among 714 surgery physician records in Missouri

Ruth A. Decker, MD is one of 714 surgery physician records with a practice address in Missouri. 78% 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, 89% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1986 · median 2006 among the 410 with a school on file
  • Record last updated2013 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Missouri

There are 714 surgery physician records in Missouri.

The 8 surgery physician records with the nearest ZIP codes

  1. Harry Cole, M.D.Chesterfield, MO 630171790749968
  2. Christopher Cronin, M.D.Chesterfield, MO 630171043204597
  3. Mari Anne Fahrner, M.D.Chesterfield, MO 630171700870292
  4. Robert Heim, M.D.Chesterfield, MO 630171780648956
  5. Diana Jiang, MDChesterfield, MO 630171639673833
  6. John Mason, M.D.Chesterfield, MO 630171275528580
  7. Thomas Niesen, M.D.Chesterfield, MO 630171700870250
  8. Nanette Wendel, M.D.Chesterfield, MO 630171841289741

Common questions

What is Ruth A. Decker, MD's NPI number?

Ruth A. Decker, MD's National Provider Identifier (NPI) is 1538145552, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ruth A. Decker, MD located?

The NPPES record lists a practice address at 224 S Woods Mill RD, Chesterfield, MO, 63017. Phone: (314) 469-1300. Providers update this record themselves, so call before visiting.

How can I verify Ruth A. Decker, MD's license?

NPPES lists Missouri license number R6H10, 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 Ruth A. Decker, MD prescribe under Medicare Part D?

In 2024, Ruth A. Decker, MD had 79 Medicare Part D claims for 35 beneficiaries; the average among surgery physician prescribers was 147. 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.