William Stephen Dyer, M.D.
Gastroenterology Physician · Mountain Home, AR
William Stephen Dyer, M.D. is a gastroenterology physician with a practice address in Mountain Home, Arkansas, and NPI 1437114717, issued on Apr 19, 2006. Check the license (Arkansas R3839, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Stephen Dyer
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- R3839 AR
Self-reported in NPPES; status is on the state search - Practice location
- 228 Bucher Dr, Mountain Home, AR 72653
- Phone
- (870) 425-4416
- Enumerated
- Apr 19, 2006
- Record last updated
- Apr 25, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (870) 425-8615
- Medicaid ID
- 114723001 AR
- Medicare enrollment
- Enrolled (PECOS I20051214000886); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 119 in Arkansas → Look up another NPI →
Also registered at 228 Bucher Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Acklin, APRNFamily Nurse Practitioner1184293383
- Abodunrin Badejo, M.D.Gastroenterology Physician1831157551
- Kirsten Cotter, APRNGastroenterology Physician1851218192
- Carmel Kruse, FNPBCNurse Practitioner1720271711
- Amanda Stricklin, APRNGerontology Nurse Practitioner1326857863
Verify William Stephen Dyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license R3839Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average gastroenterology physician in 2024
872 Medicare Part D claims for 262 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Pantoprazole Sodium254 claims
- Metoclopramide Hcl75 claims
- Peg-3350 And Electrolytes43 claims
- Omeprazole42 claims
- Sucralfate34 claims
- Azathioprine30 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: $14.48
1 payment: food and beverage; the largest payer was Medtronic, 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.
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
- Baxter County Regional Hospital IncMountain Home, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Stephen Dyer among 119 gastroenterology physician records in Arkansas
William Stephen Dyer, M.D. is one of 119 gastroenterology physician records with a practice address in Arkansas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.
- NPI issued2006 · 18% of these records are older, 45% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1985 · median 2001 among the 89 with a school on file
- Record last updated2017 · 57% 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 Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Arkansas
There are 119 gastroenterology physician records in Arkansas.
All 119 in Arkansas → Every provider in Mountain Home → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Abodunrin Badejo, M.D.Mountain Home, AR 726531831157551
- Kirsten Cotter, APRNMountain Home, AR 726531851218192
- Jeffrey Ellison, MDFayetteville, AR 727031407040488
- Stephen Hicks, M.D.Fayetteville, AR 727031225492531
- William Martin, MDFayetteville, AR 727031609811603
- Chad Paschall, MDFayetteville, AR 727031780627034
- Parth Patel, M.D.Fayetteville, AR 727031083140164
- Michael Rogers, MDFayetteville, AR 727031992731707
Common questions
What is William Stephen Dyer, M.D.'s NPI number?
William Stephen Dyer, M.D.'s National Provider Identifier (NPI) is 1437114717, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Stephen Dyer, M.D. located?
The NPPES record lists a practice address at 228 Bucher Dr, Mountain Home, AR, 72653. Phone: (870) 425-4416. Providers update this record themselves, so call before visiting.
How can I verify William Stephen Dyer, M.D.'s license?
NPPES lists Arkansas license number R3839, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Stephen Dyer, M.D. prescribe under Medicare Part D?
In 2024, William Stephen Dyer, M.D. had 872 Medicare Part D claims for 262 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.