Registry data as of Aug 27, 2026

Ronald Leblanc, MD

Hematology & Oncology Physician · Slidell, LA

Ronald Leblanc, MD is a hematology & oncology physician with a practice address in Slidell, Louisiana, and NPI 1124183439, issued on Dec 27, 2006. Check the license (Louisiana 06459R, 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, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1124183439
Name
Ronald Leblanc
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
06459R LA
09146 MS
Self-reported in NPPES; status is on the state search
Practice location
1120 Robert Blvd, Slidell, LA 70458
Phone
(985) 646-2411
Enumerated
Dec 27, 2006
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 1120 Robert Blvd

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

  1. Mary Boyte, FNP-CFamily Nurse Practitioner1750756367
  2. Allen Calabresi, MDHematology & Oncology Physician1043375363
  3. Madeleine CarriereRegistered Dietitian1780400598
  4. Aurash Khoobehi, MDHematology & Oncology Physician1548535883
  5. Courtney Rasa, FNP-CHematology & Oncology Physician1811839335
  6. Sumathi Smith, M.D.Hematology & Oncology Physician1932189016

Verify Ronald Leblanc 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 06459R
    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.

2.3 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,029 Medicare Part D claims for 272 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 332 claims were for opioids.

  1. Ronald Leblanc2,029
  2. Specialty average877

Most prescribed

  1. Hydrocodone-Acetaminophen205 claims
  2. Eliquis201 claims
  3. Anastrozole128 claims
  4. Alprazolam126 claims
  5. Xarelto95 claims
  6. Warfarin Sodium67 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: $1,711.58

49 payments, mostly food and beverage; the largest payer was Janssen Biotech, Inc. 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. Ronald Leblanc$1,711.58
  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. Ochsner Clinic LLCSlidell, LA

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

Hematology & Oncology Physician providers in Louisiana

There are 188 hematology & oncology physician records in Louisiana.

Other hematology & oncology physician records in Louisiana

  1. Hossam Abdel-Rahman, MEDIAL DOCTORMamou, LA1164485173
  2. Deborah Abernathy, MDBaton Rouge, LA1114905049
  3. Bassam Abi-Rached, M.D.Alexandria, LA1285637314
  4. Sweekriti Adhikari, D.O.Lafayette, LA1568723716
  5. Sudhir Aggarwal, M.D.Lafayette, LA1972568715
  6. Shradha Ahuja, MDNew Orleans, LA1578904199
  7. Heather Alva, MDNew Orleans, LA1891159190
  8. Nelly Aoun, MDCovington, LA1285889675
  9. Gerardo Arias, M.D.Thibodaux, LA1447265178
  10. Thomas Atkinson, MDNew Orleans, LA1760758221

Common questions

What is Ronald Leblanc, MD's NPI number?

Ronald Leblanc, MD's National Provider Identifier (NPI) is 1124183439, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Leblanc, MD located?

The NPPES record lists a practice address at 1120 Robert Blvd, Slidell, LA, 70458. Phone: (985) 646-2411. Providers update this record themselves, so call before visiting.

How can I verify Ronald Leblanc, MD's license?

NPPES lists Louisiana license number 06459R, 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 Ronald Leblanc, MD prescribe under Medicare Part D?

In 2024, Ronald Leblanc, MD had 2,029 Medicare Part D claims for 272 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), loaded Aug 27, 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) 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 27, 2026.