DR. KAREN RENEE WILLIAMS MD
NPI 1992727796
Pediatrics - Pediatric Infectious Diseases in Baton Rouge, LA
About Dr. Karen Renee Williams Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN RENEE WILLIAMS MD (NPI 1992727796) is an individual pediatric infectious diseases provider in Baton Rouge, Louisiana, licensed in Louisiana (014852) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Karen Renee Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karen Williams 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
- 548 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.
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 70806
BATON ROUGE, LA 70806
BATON ROUGE, LA 70806
BATON ROUGE, LA 70806
BATON ROUGE, LA 70806
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 Karen Williams's NPI number?
The NPI number for Karen Williams is 1992727796. It was assigned to this individual provider in the NPPES registry on July 24, 2006.
Where is Karen Williams located?
Karen Williams practices at 1401 N Foster Dr, Baton Rouge, LA 70806. The listed phone number is (225) 987-9179.
What is Karen Williams's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.
Is Karen Williams enrolled in Medicare?
Yes. Karen Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karen Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Williams reassigns Medicare benefits to Lsuhn Billing 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 Karen Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Karen Williams was last updated on October 28, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Karen Renee Williams, MD · NPI 1992727796
Pediatric Infectious Diseases physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since July 24, 2006.
## Identity
- **NPI:** 1992727796 (Entity type: Individual)
- **Enumerated:** July 24, 2006
- **Primary specialty:** Pediatrics - Pediatric Infectious Diseases · taxonomy 2080P0208X
- **State license:** 014852 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1401 N FOSTER DR, Baton Rouge, LA 70806-1818
- **Phone:** (225) 987-9179
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lsuhn Billing LLC (NPI 1306247556, Baton Rouge, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 28, 2013
- **Other identifiers:** Medicare ID-Type Unspecified 5M604; Medicaid 1319830 (LA); Medicare PIN 5M604DD21 (LA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1992727796) · Data from the CMS NPPES public registry.