Robert Lawrence Marier, MD
Hospitalist Physician · New Orleans, LA
Robert Lawrence Marier, MD is a hospitalist physician with a practice address in New Orleans, Louisiana, and NPI 1013021302, issued on Aug 17, 2006. Check the license (Louisiana MD04314R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Lawrence Marier
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD04314R LA
Self-reported in NPPES; status is on the state search - Practice location
- 1514 Jefferson Hwy, New Orleans, LA 70121
- Phone
- (504) 842-4000
- Enumerated
- Aug 17, 2006
- Record last updated
- Sep 6, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid IDs
- 00176709 MS
1186309 LA - Medicare enrollment
- Enrolled (PECOS I20050121000033); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 340 in Louisiana → Look up another NPI →
Also registered at 1514 Jefferson Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Lawrence Marier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD04314RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average hospitalist physician in 2024
39 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate12 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.
Bills Medicare through one group practice
- Belle Chasse Physician Services LLCNew Orleans, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Lawrence Marier among 340 hospitalist physician records in Louisiana
Robert Lawrence Marier, MD is one of 340 hospitalist physician records with a practice address in Louisiana. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 86% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1969 · median 2014 among the 271 with a school on file
- Record last updated2007 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Louisiana
There are 340 hospitalist physician records in Louisiana.
All 340 in Louisiana → Every provider in New Orleans → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Michael Boucree, M.D.New Orleans, LA 701211912066309
- William Carter, M.D.New Orleans, LA 701211942404454
- Michael Davis, ANPNew Orleans, LA 701211487876421
- Marianne Maumus, MDNew Orleans, LA 701211013944487
- Stacy McDonald, MDNew Orleans, LA 701211407825557
- Arup Nath, MDNew Orleans, LA 701211558525642
- Jeremiah Newsom, MDNew Orleans, LA 701211245434612
- Moira Ogden, MDNew Orleans, LA 701211598861239
Common questions
What is Robert Lawrence Marier, MD's NPI number?
Robert Lawrence Marier, MD's National Provider Identifier (NPI) is 1013021302, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Lawrence Marier, MD located?
The NPPES record lists a practice address at 1514 Jefferson Hwy, New Orleans, LA, 70121. Phone: (504) 842-4000. Providers update this record themselves, so call before visiting.
How can I verify Robert Lawrence Marier, MD's license?
NPPES lists Louisiana license number MD04314R, 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 Robert Lawrence Marier, MD prescribe under Medicare Part D?
In 2024, Robert Lawrence Marier, MD had 39 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.