WILLIAM DAVID LITTLETON
NPI 1699249953
Nurse Anesthetist, Certified Registered in Baton Rouge, LA
About William David Littleton NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DAVID LITTLETON (NPI 1699249953) is an individual nurse anesthetist, certified registered in Baton Rouge, Louisiana, licensed in Louisiana (151181) and active in the NPI registry since January 2019. He is affiliated with Our Lady Of The Lake Regional Medical Center and 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
William David Littleton 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
3Medicare enrollment records show William Littleton reassigns Medicare billing to 3 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
- 107 clinicians in this Medicare group
Baton Rouge, LA 70809
- Reassigned Medicare billing, Louisiana enrollment
- 357 clinicians in this Medicare group
La Place, LA 70068
- Reassigned Medicare billing, Louisiana enrollment
- 482 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 4
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 William Littleton's NPI number?
The NPI number for William Littleton is 1699249953. It was assigned to this individual provider in the NPPES registry on January 18, 2019.
Where is William Littleton located?
William Littleton practices at 8585 Picardy Ave, Baton Rouge, LA 70809. The listed phone number is (225) 906-2570.
What is William Littleton's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is William Littleton enrolled in Medicare?
Yes. William Littleton 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 Littleton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Littleton reassigns Medicare benefits to 3 organizations: The Capital City Anesthesia Group, LLC (Baton Rouge, LA), Anesthesiology Group Associates Inc (Baton Rouge, LA) and Zephyr Anesthesia, LLC (La Place, 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 Littleton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Littleton accept?
Health plans from HMO Louisiana list William Littleton 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 Littleton affiliated with any hospitals?
According to CMS data, William Littleton is affiliated with Our Lady Of The Lake Regional Medical Center.
When was this NPI record last updated?
The NPPES record for William Littleton was last updated on January 18, 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.
# William David Littleton · NPI 1699249953
Nurse Anesthetist, Certified Registered physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since January 18, 2019.
## Identity
- **NPI:** 1699249953 (Entity type: Individual)
- **Enumerated:** January 18, 2019
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 151181 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 8585 PICARDY AVE, Baton Rouge, LA 70809-3748
- **Phone:** (225) 906-2570
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): The Capital City Anesthesia Group, LLC (NPI 1245282466, Baton Rouge, LA); Anesthesiology Group Associates Inc (NPI 1255399598, Baton Rouge, LA); Zephyr Anesthesia, LLC (NPI 1891087458, La Place, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 18, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1699249953) · Data from the CMS NPPES public registry.