WALTER A WARREN III CRNA
NPI 1982177390
Nurse Anesthetist, Certified Registered in Baton Rouge, LA
About Walter A Warren Iii Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WALTER A WARREN III CRNA (NPI 1982177390) is an individual nurse anesthetist, certified registered in Baton Rouge, Louisiana, licensed in Louisiana (202152) and active in the NPI registry since January 2019. He is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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
Walter A Warren Iii Crna 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
9Medicare enrollment records show Walter Warren reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 357 clinicians in this Medicare group
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 15 clinicians in this Medicare group
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 141 clinicians in this Medicare group
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 121 clinicians in this Medicare group
Baton Rouge, LA 70810
- Reassigned Medicare billing, Louisiana enrollment
- 36 clinicians in this Medicare group
Baton Rouge, LA 70810
- Reassigned Medicare billing, Louisiana enrollment
- 21 clinicians in this Medicare group
La Place, LA 70068
- Reassigned Medicare billing, Louisiana enrollment
- 482 clinicians in this Medicare group
New Iberia, LA 70563
- Reassigned Medicare billing, Louisiana enrollment
- 470 clinicians in this Medicare group
Metairie, LA 70001
- Reassigned Medicare billing, Louisiana enrollment
- 71 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.
Physician 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.
Other Providers at the Same Location NPPES 18
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 Walter Warren's NPI number?
The NPI number for Walter Warren is 1982177390. It was assigned to this individual provider in the NPPES registry on January 8, 2019.
Where is Walter Warren located?
Walter Warren practices at 7777 Hennessy Blvd Ste 301, Baton Rouge, LA 70808. The listed phone number is (225) 214-6438.
What is Walter Warren's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Walter Warren enrolled in Medicare?
Yes. Walter Warren 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 Walter Warren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walter Warren reassigns Medicare benefits to 9 organizations: Anesthesiology Group Associates Inc (Baton Rouge, LA), Letheon Anesthesia Services LLC (Baton Rouge, LA), Diversified Professionals, Inc. (Baton Rouge, LA), Dpi Of Louisiana LLC (Baton Rouge, LA), Nuedge Anesthesia LLC (Baton Rouge, LA) and 4 more organizations, listed in the Medicare section above. 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 Walter Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Walter Warren accept?
Health plans from HMO Louisiana list Walter Warren 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.
When was this NPI record last updated?
The NPPES record for Walter Warren was last updated on January 8, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Walter A Warren III, CRNA · NPI 1982177390
Nurse Anesthetist, Certified Registered physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since January 8, 2019.
## Identity
- **NPI:** 1982177390 (Entity type: Individual)
- **Enumerated:** January 8, 2019
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 202152 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 7777 HENNESSY BLVD STE 301, Baton Rouge, LA 70808-0319
- **Phone:** (225) 214-6438
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Anesthesiology Group Associates Inc (NPI 1255399598, Baton Rouge, LA); Letheon Anesthesia Services LLC (NPI 1619543055, Baton Rouge, LA); Diversified Professionals, Inc. (NPI 1700923992, Baton Rouge, LA); Dpi Of Louisiana LLC (NPI 1144083387, Baton Rouge, LA); Nuedge Anesthesia LLC (NPI 1629759782, Baton Rouge, LA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 8, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1982177390) · Data from the CMS NPPES public registry.