DR. KELLI WONG WILLIAMS M.D., M.P.H.
NPI 1902030042
Pediatrics - Pediatric Allergy/Immunology in Charleston, SC
About Dr. Kelli Wong Williams M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KELLI WONG WILLIAMS M.D., M.P.H. (NPI 1902030042) is an individual pediatric allergy/immunology provider in Charleston, South Carolina, licensed in South Carolina (31927) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and maintains a secondary practice location in North Charleston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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. Kelli Wong Williams M.d., M.p.h. 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 Kelli Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Charleston, SC 29407
- Reassigned Medicare billing, South Carolina enrollment
- 509 clinicians in this Medicare group
Charleston, SC 29414
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: University Medical Associates Of The Medical University Of South Carol
- 2,594 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Musc Medical Center
Acute Care Hospitals · Charleston, SCMusc Health Florence Medical Center
Acute Care Hospitals · Florence, SCReferred Medical Equipment & Supplies CMS DME claims 6
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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHARLESTON, SC 29407
CHARLESTON, SC 29407
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 Kelli Williams's NPI number?
The NPI number for Kelli Williams is 1902030042. It was assigned to this individual provider in the NPPES registry on May 4, 2009.
Where is Kelli Williams located?
Kelli Williams practices at 2060 Sam Rittenberg Blvd, Charleston, SC 29407. The listed phone number is (843) 792-1414.
What is Kelli Williams's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Allergy/Immunology, with taxonomy code 2080P0201X.
Is Kelli Williams enrolled in Medicare?
Yes. Kelli 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 Kelli Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kelli Williams reassigns Medicare benefits to 2 organizations: Carolina Family Care, Inc (Charleston, SC) and University Medical Associates (Charleston, SC). 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 Kelli Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kelli Williams accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina, First Choice Next and UnitedHealthcare list Kelli 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.
Is Kelli Williams affiliated with any hospitals?
According to CMS data, Kelli Williams is affiliated with Musc Medical Center and Musc Health Florence Medical Center.
When was this NPI record last updated?
The NPPES record for Kelli Williams was last updated on April 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.