NPPES file of Aug 9, 2026

Marshall Patrick Stagg, MD

Hematology & Oncology Physician · Baton Rouge, LA

Marshall Patrick Stagg, MD is a hematology & oncology physician with a practice address in Baton Rouge, Louisiana, and NPI 1841281573, issued on Nov 2, 2005. Check the license (Louisiana 019154, 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
1841281573
Name
Marshall Patrick Stagg
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
019154 LA
Self-reported in NPPES; status is on the state search
Practice location
8585 Picardy Ave, Baton Rouge, LA 70809
Phone
(225) 341-8311
Enumerated
Nov 2, 2005
Record last updated
Apr 7, 2022
Fax
(844) 800-1476
Medicaid ID
1383121 LA
Medicare enrollment
Enrolled (PECOS I20100819000092); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1986
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 8585 Picardy Ave

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

  1. Tori AbbessFamily Nurse Practitioner1881433324
  2. Mokhtar AbdallahInterventional Cardiology Physician1285050799
  3. Gregory Altazan, MSN, FNP-C, CENNurse Practitioner1295366219
  4. Shiva Anaji, MBBSInternal Medicine Physician1063080026
  5. Nadira Aryal, M.DInternal Medicine Physician1356789911
  6. Stephanie Sue Awad, M.D.Family Medicine Physician1891967642

Verify Marshall Patrick Stagg 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 019154
    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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9% more Medicare Part D claims than the average hematology & oncology physician in 2024

957 Medicare Part D claims for 166 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 243 claims were for opioids.

  1. Marshall Stagg957
  2. Specialty average877

Most prescribed

  1. Hydrocodone-Acetaminophen97 claims
  2. Oxycodone Hcl55 claims
  3. Revlimid39 claims
  4. Dexamethasone34 claims
  5. Ondansetron Hcl34 claims
  6. Gabapentin29 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: $4,856.11

154 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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. Marshall Stagg$4,856.11
  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. Our Lady OF The Lake Physician Group LLCBaton Rouge, LA

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

Marshall Patrick Stagg among 188 hematology & oncology physician records in Louisiana

Marshall Patrick Stagg, MD is one of 188 hematology & oncology physician records with a practice address in Louisiana. 89% 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, 85% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1986 · median 2005 among the 144 with a school on file
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Louisiana

There are 188 hematology & oncology physician records in Louisiana.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Deborah Abernathy, MDBaton Rouge, LA 708091114905049
  2. Bryan Bienvenu, MDBaton Rouge, LA 708091932121795
  3. Frederic Billings, M.D.Baton Rouge, LA 708091063519072
  4. Burke Brooks, M.D.Baton Rouge, LA 708091518991975
  5. Ruben Fabrega, MDBaton Rouge, LA 708091083644041
  6. David Hanson, MDBaton Rouge, LA 708091063435071
  7. Deborah Johnson, M.D.Baton Rouge, LA 708091902809692
  8. Judd Patten, MDBaton Rouge, LA 708091659394583

Common questions

What is Marshall Patrick Stagg, MD's NPI number?

Marshall Patrick Stagg, MD's National Provider Identifier (NPI) is 1841281573, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Marshall Patrick Stagg, MD located?

The NPPES record lists a practice address at 8585 Picardy Ave, Baton Rouge, LA, 70809. Phone: (225) 341-8311. Providers update this record themselves, so call before visiting.

How can I verify Marshall Patrick Stagg, MD's license?

NPPES lists Louisiana license number 019154, 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 Marshall Patrick Stagg, MD prescribe under Medicare Part D?

In 2024, Marshall Patrick Stagg, MD had 957 Medicare Part D claims for 166 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), 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.