DR. WILLIAM BRITTON MURRILL MD
NPI 1285736173
Internal Medicine - Nephrology in Baton Rouge, LA
About Dr. William Britton Murrill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM BRITTON MURRILL MD (NPI 1285736173) is an individual nephrology provider in Baton Rouge, Louisiana, licensed in Louisiana (MD.200164) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Our Lady Of The Lake Regional Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2000).
NPPES Registry Identity
Specialties & Licenses
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
Dr. William Britton Murrill 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 Reassignments
2Medicare enrollment records show William Murrill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baton Rouge, LA 70808
- Reassigned Medicare billing, Louisiana enrollment
- 33 clinicians in this Medicare group
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 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 12
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 3
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, LABaton Rouge General Medical Center
Acute Care Hospitals · Baton Rouge, LAOchsner Medical Center - Baton Rouge
Acute Care Hospitals · Baton Rouge, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70808 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
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 William Murrill's NPI number?
The NPI number for William Murrill is 1285736173. It was assigned to this individual provider in the NPPES registry on September 2, 2006.
Where is William Murrill located?
William Murrill practices at 5131 Odonovan Dr Ste 100, Baton Rouge, LA 70808. The listed phone number is (225) 767-4893.
What is William Murrill's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is William Murrill enrolled in Medicare?
Yes. William Murrill 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 organizations bill Medicare for William Murrill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Murrill reassigns Medicare benefits to 2 organizations: Renal Associates Of Baton Rouge, LLC (Baton Rouge, LA) and Ochsner Clinic LLC (Baton Rouge, LA). Each 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 William Murrill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Murrill accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and AmeriHealth Caritas Next and 3 other insurers list William Murrill 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 William Murrill affiliated with any hospitals?
According to CMS data, William Murrill is affiliated with Our Lady Of The Lake Regional Medical Center, Baton Rouge General Medical Center and Ochsner Medical Center - Baton Rouge.
When was this NPI record last updated?
The NPPES record for William Murrill was last updated on July 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.