John Elton Caswell, M.D.
Family Medicine Physician · Gentry, AR
John Elton Caswell, M.D. is a family medicine physician with a practice address in Gentry, Arkansas, and NPI 1336198365, issued on May 8, 2006. Check the license (Arkansas E4143, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Elton Caswell
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- E4143 AR
Self-reported in NPPES; status is on the state search - Practice location
- 643 E 3RD St, Gentry, AR 72734
- Phone
- (479) 736-2213
- Enumerated
- May 8, 2006
- Record last updated
- Mar 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (479) 736-2105
- Medicaid ID
- 157772001 AR
- Medicare enrollment
- Enrolled (PECOS I20050422001192); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,681 in Arkansas → Look up another NPI →
Also registered at 643 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine CaseyFamily Nurse Practitioner1861482739
- Ashish Mathur, MDFamily Medicine Physician1245329663
- Kindal Reynolds, APRNFamily Nurse Practitioner1477321917
Verify John Elton Caswell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E4143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family medicine physician in 2024
8,697 Medicare Part D claims for 599 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 508 claims were for opioids.
Most prescribed
- Lisinopril361 claims
- Atorvastatin Calcium347 claims
- Amlodipine Besylate336 claims
- Hydrocodone-Acetaminophen211 claims
- Rosuvastatin Calcium211 claims
- Levothyroxine Sodium203 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: $645.32
30 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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
- St. Francis House Nwa, Inc.Gentry, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Elton Caswell among 1,681 family medicine physician records in Arkansas
John Elton Caswell, M.D. is one of 1,681 family medicine 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 14% of them.
- NPI issued2006 · 14% of these records are older, 47% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2003 · median 2004 among the 1,156 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 family medicine physician records list a practice address in Gentry
They are 2 of the 37 NPPES records with a practice address in Gentry, and 1,681 family medicine physician records in Arkansas.
All 1,681 in Arkansas → Every provider in Gentry → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ashish Mathur, MDGentry, AR 727341245329663
- Rayetta Eaton, MDGravette, AR 727361467407056
- Nancy Jones, MDGravette, AR 727361346208527
- Vijay Kannam, M.D.Gravette, AR 727361699039610
- Kenneth Poemoceah, MDGravette, AR 727361881652592
- David Tucker, MDGravette, AR 727361023076619
- William Webb, MDGravette, AR 727361699723536
- Jamal Abdin, M.D.Farmington, AR 727301043201940
Common questions
What is John Elton Caswell, M.D.'s NPI number?
John Elton Caswell, M.D.'s National Provider Identifier (NPI) is 1336198365, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Elton Caswell, M.D. located?
The NPPES record lists a practice address at 643 E 3RD St, Gentry, AR, 72734. Phone: (479) 736-2213. Providers update this record themselves, so call before visiting.
How can I verify John Elton Caswell, M.D.'s license?
NPPES lists Arkansas license number E4143, 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 John Elton Caswell, M.D. prescribe under Medicare Part D?
In 2024, John Elton Caswell, M.D. had 8,697 Medicare Part D claims for 599 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.