William Marshall Gilbert, M.D
Hospitalist Physician · New Orleans, LA
William Marshall Gilbert, M.D is a hospitalist physician with a practice address in New Orleans, Louisiana, and NPI 1508210204, issued on Apr 19, 2016. Check the license (Louisiana 323356, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Marshall Gilbert
- Credential
- M.D
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 323356 LA
38275 AL
Self-reported in NPPES; status is on the state search - Practice location
- 1415 Tulane Ave, New Orleans, LA 70112
- Phone
- (504) 988-5263
- Enumerated
- Apr 19, 2016
- Record last updated
- Jul 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200727001927); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 340 in Louisiana → Look up another NPI →
Also registered at 1415 Tulane Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abella, DOStudent in an Organized Health Care Education/Training Program1255035572
- Eric Abraham, MDAnesthesiology Physician1639140114
- Ibrahim Aburiziq, M.DAnatomic Pathology & Clinical Pathology Physician1134359771
- Prateek Adhikari, M.D.Emergency Medicine Physician1083788004
- Tanjeev Ahmad, MDStudent in an Organized Health Care Education/Training Program1457091795
- Muhammad Ahmed, MDPsychiatry Physician1588724561
Verify William Marshall Gilbert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 323356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average hospitalist physician in 2024
144 Medicare Part D claims for 36 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium14 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: $18.80
1 payment: food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- East Jefferson Physicians Group LLCMetairie, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Marshall Gilbert among 340 hospitalist physician records in Louisiana
William Marshall Gilbert, M.D 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 2016, is newer than 52% of them.
- NPI issued2016 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2016 · median 2014 among the 271 with a school on file
- Record last updated2020 · 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
- Robert Andres, M.D.New Orleans, LA 701121043653686
- Deepa Bhatnagar, M.D.New Orleans, LA 701121205039294
- Chayan Chakraborti, M.D.New Orleans, LA 701121457300535
- Heather ChauNew Orleans, LA 701121144647298
- Mariano Iberico, M.D.New Orleans, LA 701121831431238
- Jacey Jones, MDNew Orleans, LA 701121225472707
- John Marker, M.D.New Orleans, LA 701121942477583
- Marlowe Maylin, MDNew Orleans, LA 701121669572558
Common questions
What is William Marshall Gilbert, M.D's NPI number?
William Marshall Gilbert, M.D's National Provider Identifier (NPI) is 1508210204, issued on Apr 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Marshall Gilbert, M.D located?
The NPPES record lists a practice address at 1415 Tulane Ave, New Orleans, LA, 70112. Phone: (504) 988-5263. Providers update this record themselves, so call before visiting.
How can I verify William Marshall Gilbert, M.D's license?
NPPES lists Louisiana license number 323356, 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 William Marshall Gilbert, M.D prescribe under Medicare Part D?
In 2024, William Marshall Gilbert, M.D had 144 Medicare Part D claims for 36 beneficiaries; 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.