Jon D. Harper, MD
Internal Medicine Physician · Fort Smith, AR
Jon D. Harper, MD is an internal medicine physician with a practice address in Fort Smith, Arkansas, and NPI 1548258361, issued on Oct 6, 2005. Check the license (Arkansas E2043, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jon D. Harper
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- E2043 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1120 Lexington Ave, Fort Smith, AR 72901
- Phone
- (479) 709-7260
- Enumerated
- Oct 6, 2005
- Record last updated
- Nov 23, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (479) 709-7261
- Medicaid IDs
- 137764001 AR
200045190A OK - Medicare enrollment
- Enrolled (PECOS I20040923000596); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 768 in Arkansas → Look up another NPI →
Also registered at 1120 Lexington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Hinkle, MDInternal Medicine Physician1346238441
- Charles Jennings, MDInternal Medicine Physician1558359398
- Holly Jennings, MDInternal Medicine Physician1083602825
- Samir Patel, MD, MPHInternal Medicine Physician1811339054
Verify Jon D. Harper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E2043Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,244 Medicare Part D claims for 804 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 188 claims were for opioids.
Most prescribed
- Amlodipine Besylate627 claims
- Atorvastatin Calcium558 claims
- Simvastatin522 claims
- Lisinopril507 claims
- Metoprolol Succinate498 claims
- Losartan Potassium403 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: $51.24
3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Baptist Health ServicesFort Smith, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jon D. Harper among 768 internal medicine physician records in Arkansas
Jon D. Harper, MD is one of 768 internal medicine physician records with a practice address in Arkansas. 84% 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, 92% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1996 · median 2010 among the 519 with a school on file
- Record last updated2016 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
68 internal medicine physician records list a practice address in Fort Smith
They are 68 of the 2,951 NPPES records with a practice address in Fort Smith, and 768 internal medicine physician records in Arkansas.
All 768 in Arkansas → Every provider in Fort Smith → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joel Cheong, M.D.Fort Smith, AR 729011255309159
- Richard Hinkle, MDFort Smith, AR 729011346238441
- Charles Jennings, MDFort Smith, AR 729011558359398
- Holly Jennings, MDFort Smith, AR 729011083602825
- Fareed Kannout, MDFort Smith, AR 729011144242892
- John Kientz, MDFort Smith, AR 729011568450393
- Thuylinh Pham, M.D.Fort Smith, AR 729011356396790
- Paul Pradel, MDFort Smith, AR 729011083602353
Common questions
What is Jon D. Harper, MD's NPI number?
Jon D. Harper, MD's National Provider Identifier (NPI) is 1548258361, issued on Oct 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jon D. Harper, MD located?
The NPPES record lists a practice address at 1120 Lexington Ave, Fort Smith, AR, 72901. Phone: (479) 709-7260. Providers update this record themselves, so call before visiting.
How can I verify Jon D. Harper, MD's license?
NPPES lists Arkansas license number E2043, 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 Jon D. Harper, MD prescribe under Medicare Part D?
In 2024, Jon D. Harper, MD had 14,244 Medicare Part D claims for 804 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.