NPPES file of Aug 9, 2026

Thomas P. Melancon, M.D.

Internal Medicine Physician · Marrero, LA

Thomas P. Melancon, M.D. is an internal medicine physician with a practice address in Marrero, Louisiana, and NPI 1811989197, issued on Aug 22, 2005. Check the license (Louisiana 18656, 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
1811989197
Name
Thomas P. Melancon
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
18656 LA
Self-reported in NPPES; status is on the state search
Practice location
1111 Medical Center Blvd, Marrero, LA 70072
Phone
(504) 392-7999
Enumerated
Aug 22, 2005
Record last updated
Aug 25, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(504) 392-6100
Medicaid ID
1397610 LA
Medicare enrollment
Enrolled (PECOS I20100202000073); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1985
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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Also registered at 1111 Medical Center Blvd

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

  1. John Balart, M.D.Diagnostic Radiology Physician1518130756
  2. Charles Ballay, M.D.Otolaryngology Physician1043306392
  3. Robert Batson, M.D.Vascular Surgery Physician1790780823
  4. Harris Blackman, M.D.Specialist1629041116
  5. Jonathan Boraski, M.D.Plastic Surgery Physician1245231612
  6. William Borron, MDPulmonary Disease Physician1790786861

Verify Thomas P. Melancon 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 18656
    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

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3.0 times the Medicare Part D claims of the average internal medicine physician in 2024

9,655 Medicare Part D claims for 577 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 175 claims were for opioids.

  1. Thomas Melancon9,655
  2. Specialty average3,176

Most prescribed

  1. Alprazolam743 claims
  2. Rosuvastatin Calcium514 claims
  3. Amlodipine Besylate462 claims
  4. Levothyroxine Sodium381 claims
  5. Montelukast Sodium265 claims
  6. Losartan Potassium234 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.

Thomas P. Melancon among 1,749 internal medicine physician records in Louisiana

Thomas P. Melancon, M.D. is one of 1,749 internal medicine physician records with a practice address in Louisiana. 85% 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, 90% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1985 · median 2008 among the 1,216 with a school on file
  • Record last updated2010 · 56% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 internal medicine physician records list a practice address in Marrero

They are 46 of the 1,117 NPPES records with a practice address in Marrero, and 1,749 internal medicine physician records in Louisiana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Scott Acosta, MDMarrero, LA 700721023018199
  2. Lauren Barial, M.D.Marrero, LA 700721699758821
  3. Walter Bortz, M.D.Marrero, LA 700721225012016
  4. Alan Bowers, MDMarrero, LA 700721306832886
  5. Craig Ehrensing, MDMarrero, LA 700721538127618
  6. Constance Gistand, MDMarrero, LA 700721225014327
  7. Shaunda Jones, M.D.Marrero, LA 700721891734190
  8. Yvens Laborde, MDMarrero, LA 700721891744264

Common questions

What is Thomas P. Melancon, M.D.'s NPI number?

Thomas P. Melancon, M.D.'s National Provider Identifier (NPI) is 1811989197, issued on Aug 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas P. Melancon, M.D. located?

The NPPES record lists a practice address at 1111 Medical Center Blvd, Marrero, LA, 70072. Phone: (504) 392-7999. Providers update this record themselves, so call before visiting.

How can I verify Thomas P. Melancon, M.D.'s license?

NPPES lists Louisiana license number 18656, 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 Thomas P. Melancon, M.D. prescribe under Medicare Part D?

In 2024, Thomas P. Melancon, M.D. had 9,655 Medicare Part D claims for 577 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.