NPPES file of Aug 9, 2026

John Neville Harrington, MD

Gastroenterology Physician · Kenner, LA

John Neville Harrington, MD is a gastroenterology physician with a practice address in Kenner, Louisiana, and NPI 1437154259, issued on Jun 17, 2005. Check the license (Louisiana 05350R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; 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
1437154259
Name
John Neville Harrington
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
05350R LA
Self-reported in NPPES; status is on the state search
Practice location
200 W Esplanade Ave, Kenner, LA 70065
Phone
(504) 842-8546
Enumerated
Jun 17, 2005
Record last updated
Jan 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicaid IDs
1312118 LA
09385505 MS
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 200 W Esplanade Ave

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

  1. Mariam Ahmed, M.D.Geriatric Medicine (Family Medicine) Physician1578983029
  2. Aya Al-Abduladheem, MDInternal Medicine Physician1922567742
  3. Gregory Baird, CRNACertified Registered Nurse Anesthetist1932220936
  4. Suzette Ball, CRNACertified Registered Nurse Anesthetist1245362318
  5. Jose Barrientos PazInterventional Cardiology Physician1699120063
  6. Christopher Barrilleaux, MDGastroenterology Physician1639174881

Verify John Neville Harrington in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license 05350R
    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 Louisiana 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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96% fewer Medicare Part D claims than the average gastroenterology physician in 2024

36 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of claims.

  1. John Harrington36
  2. Specialty average811

Most prescribed

  1. Trulance11 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.

John Neville Harrington among 263 gastroenterology physician records in Louisiana

John Neville Harrington, MD is one of 263 gastroenterology physician records with a practice address in Louisiana. 88% 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, 83% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 79% of these records are
  • Record last updated2016 · 61% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Louisiana

There are 263 gastroenterology physician records in Louisiana.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Aderonke Akingbola, M.D.Kenner, LA 700651033154406
  2. Christopher Barrilleaux, MDKenner, LA 700651639174881
  3. Kevin Cowley, M.D.Kenner, LA 700651548603533
  4. Conar Fitton, M.D.Kenner, LA 700651316182744
  5. Daniel Raines, M.D.Kenner, LA 700651316081367
  6. David Dulitz, M.D.Luling, LA 700701073547592
  7. James Campbell, MDMarrero, LA 700721053331421
  8. Shantiprakash Kedia, M.D.Marrero, LA 700721295738557

Common questions

What is John Neville Harrington, MD's NPI number?

John Neville Harrington, MD's National Provider Identifier (NPI) is 1437154259, issued on Jun 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Neville Harrington, MD located?

The NPPES record lists a practice address at 200 W Esplanade Ave, Kenner, LA, 70065. Phone: (504) 842-8546. Providers update this record themselves, so call before visiting.

How can I verify John Neville Harrington, MD's license?

NPPES lists Louisiana license number 05350R, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Neville Harrington, MD prescribe under Medicare Part D?

In 2024, John Neville Harrington, MD had 36 Medicare Part D claims; 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.