NPPES file of Aug 9, 2026

James Sidney Lopez, M.D.

Hematology & Oncology Physician · Rogers, AR

James Sidney Lopez, M.D. is a hematology & oncology physician with a practice address in Rogers, Arkansas, and NPI 1699206946, issued on Mar 27, 2017. Check the license (Arkansas E-13379, as entered in NPPES) on the Arkansas State Medical Board; 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
1699206946
Name
James Sidney Lopez
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
E-13379 AR
Self-reported in NPPES; status is on the state search
Practice location
808 S 52ND St, Rogers, AR 72758
Phone
(479) 587-1700
Enumerated
Mar 27, 2017
Record last updated
Jul 6, 2026
Fax
(479) 587-1366
Medicare enrollment
Enrolled (PECOS I20200721000424); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2017
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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8 nearest hematology & oncology physician records → All 103 in Arkansas → Look up another NPI →

Also registered at 808 S 52ND St

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

  1. Dana Abbott, APRNAcute Care Nurse Practitioner1164101564
  2. Michaela Berndt, FNP-CFamily Nurse Practitioner1598315913
  3. Daniel Bradford, M.D.Hematology & Oncology Physician1033180229
  4. Ginny Cato, APRN NP-CFamily Nurse Practitioner1245635507
  5. Jillian Hewlett, APRNAdult Health Nurse Practitioner1295113272
  6. Rachel Hudman, MSN, APRN, FNP-CFamily Nurse Practitioner1871084087

Verify James Sidney Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E-13379    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 Arkansas 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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49% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

444 Medicare Part D claims for 159 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 55 claims were for opioids.

  1. James Lopez444
  2. Specialty average877

Most prescribed

  1. Hydrocodone-Acetaminophen32 claims
  2. Eliquis21 claims
  3. Brukinsa17 claims
  4. Hydroxyurea16 claims
  5. Amlodipine Besylate15 claims
  6. Ondansetron Odt14 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: $487.06

28 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Lopez$487.06
  2. Specialty average$7,481.41

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

  1. Highlands Oncology Group PASpringdale, AR

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

James Sidney Lopez among 103 hematology & oncology physician records in Arkansas

James Sidney Lopez, M.D. is one of 103 hematology & oncology physician records with a practice address in Arkansas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 88% of them.

  • NPI issued2017 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2017 · median 2002 among the 80 with a school on file
  • Record last updated2026 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Arkansas

There are 103 hematology & oncology physician records in Arkansas.

All 103 in Arkansas → Every provider in Rogers → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Daniel Bradford, M.D.Rogers, AR 727581033180229
  2. Eric Schaefer, M.D.Rogers, AR 727581558325118
  3. J Beck, M.D., F.A.C.P.Springdale, AR 727621952372120
  4. John Esther, M.D.Springdale, AR 727621174056121
  5. Ashley Hickman, MDSpringdale, AR 727621356803944
  6. Ewa Matczak, MDSpringdale, AR 727621346478468
  7. Jennifer Porta, D.OSpringdale, AR 727621699209478
  8. Patrick Travis, M.D.Springdale, AR 727621104897099

Common questions

What is James Sidney Lopez, M.D.'s NPI number?

James Sidney Lopez, M.D.'s National Provider Identifier (NPI) is 1699206946, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is James Sidney Lopez, M.D. located?

The NPPES record lists a practice address at 808 S 52ND St, Rogers, AR, 72758. Phone: (479) 587-1700. Providers update this record themselves, so call before visiting.

How can I verify James Sidney Lopez, M.D.'s license?

NPPES lists Arkansas license number E-13379, 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 James Sidney Lopez, M.D. prescribe under Medicare Part D?

In 2024, James Sidney Lopez, M.D. had 444 Medicare Part D claims for 159 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.