DR. JULIE LYN WILLIAMS M.D.
NPI 1033409529
Anesthesiology in Lafayette, LA
About Dr. Julie Lyn Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JULIE LYN WILLIAMS M.D. (NPI 1033409529) is an individual anesthesiology provider in Lafayette, Louisiana, licensed in Louisiana (308335) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 2
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. Julie Lyn Williams M.d. 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 Julie Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Iberia, LA 70563
- Reassigned Medicare billing, Louisiana enrollment
- 470 clinicians in this Medicare group
New Orleans, LA 70118
- Reassigned Medicare billing, Louisiana enrollment
- 519 clinicians in this Medicare group
New Orleans, LA 70112
- Reassigned Medicare billing, Louisiana enrollment
- 931 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 2
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.
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 Julie Williams's NPI number?
The NPI number for Julie Williams is 1033409529. It was assigned to this individual provider in the NPPES registry on April 18, 2011.
Where is Julie Williams located?
Julie Williams practices at Olol 4801 Ambassador Caffery Parkway, Lafayette, LA 70508. The listed phone number is (337) 478-2000.
What is Julie Williams's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Julie Williams enrolled in Medicare?
Yes. Julie Williams 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 Julie Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julie Williams reassigns Medicare benefits to 3 organizations: Youngs Professional Services LLC (New Iberia, LA), Childrens Hospital Anesthesia Corporation (New Orleans, LA) and Louisiana State University School Of Medicine In New Orleans Faculty G (New Orleans, 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 Julie Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Julie Williams accept?
Health plans from HMO Louisiana list Julie Williams 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 Julie Williams was last updated on March 21, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Julie Lyn Williams, M.D. · NPI 1033409529
Anesthesiology physician in Lafayette, Louisiana. Individual provider, active in the CMS NPPES registry since April 18, 2011.
## Identity
- **NPI:** 1033409529 (Entity type: Individual)
- **Enumerated:** April 18, 2011
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 308335 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** OLOL, 4801 AMBASSADOR CAFFERY PARKWAY, Lafayette, LA 70508
- **Phone:** (337) 478-2000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Youngs Professional Services LLC (NPI 1922178599, New Iberia, LA); Childrens Hospital Anesthesia Corporation (NPI 1649362740, New Orleans, LA); Louisiana State University School Of Medicine In New Orleans Faculty G (NPI 1477582526, New Orleans, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 21, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1033409529) · Data from the CMS NPPES public registry.