MR. MARSHALL PATRICK STAGG II MD
NPI 1841281573
Internal Medicine - Hematology & Oncology in Baton Rouge, LA
About Mr. Marshall Patrick Stagg Ii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARSHALL PATRICK STAGG II MD (NPI 1841281573) is an individual hematology & oncology provider in Baton Rouge, Louisiana, licensed in Louisiana (019154) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Our Lady Of The Lake Regional Medical Center, and maintains a secondary practice location in Baton Rouge.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Marshall Patrick Stagg Ii Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Marshall Stagg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baton Rouge, LA 70808
- Reassigned Medicare billing, Louisiana enrollment
- 873 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Our Lady Of The Lake Regional Medical Center
Acute Care Hospitals · Baton Rouge, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70809 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BATON ROUGE, LA 70809
BATON ROUGE, LA 70809
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marshall Stagg's NPI number?
The NPI number for Marshall Stagg is 1841281573. It was assigned to this individual provider in the NPPES registry on November 2, 2005.
Where is Marshall Stagg located?
Marshall Stagg practices at 8585 Picardy Ave Suite 312, Baton Rouge, LA 70809. The listed phone number is (225) 341-8311.
What is Marshall Stagg's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Marshall Stagg enrolled in Medicare?
Yes. Marshall Stagg is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Marshall Stagg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marshall Stagg reassigns Medicare benefits to Our Lady Of The Lake Physician Group LLC (Baton Rouge, LA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marshall Stagg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marshall Stagg accept?
Health plans from AmeriHealth Caritas Next, Blue Cross and Blue Shield of Louisiana, HMO Louisiana and UnitedHealthcare list Marshall Stagg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Marshall Stagg affiliated with any hospitals?
According to CMS data, Marshall Stagg is affiliated with Our Lady Of The Lake Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Marshall Stagg was last updated on April 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Marshall Patrick Stagg II, MD · NPI 1841281573
Hematology & Oncology physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since November 2, 2005.
## Identity
- **NPI:** 1841281573 (Entity type: Individual)
- **Enumerated:** November 2, 2005
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 019154 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 8585 PICARDY AVE, SUITE 312, Baton Rouge, LA 70809-3748
- **Phone:** (225) 341-8311 · **Fax:** (844) 800-1476
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Our Lady Of The Lake Physician Group LLC (NPI 1033494943, Baton Rouge, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In New Orleans, class of 1986
## Record status
- **NPPES last updated:** April 7, 2022
- **Other identifiers:** Medicaid 1383121 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1841281573) · Data from the CMS NPPES public registry.