DEREK ADAM WILLIAMS DO
NPI 1568577633
Internal Medicine - Adult Congenital Heart Disease in Charlotte, NC
About Derek Adam Williams Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK ADAM WILLIAMS DO (NPI 1568577633) is an individual adult congenital heart disease provider in Charlotte, North Carolina, licensed in North Carolina (2006-01306) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with North Carolina Baptist Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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
Derek Adam Williams Do 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 Derek Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Charlotte, NC 28204
- Reassigned Medicare billing, North Carolina enrollment
- 1,646 clinicians in this Medicare group
Lexington, NC 27295
- Reassigned Medicare billing, North Carolina enrollment
- 3,003 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
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.
North Carolina Baptist Hospital
Acute Care Hospitals · Winston-Salem, NCOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
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 Derek Williams's NPI number?
The NPI number for Derek Williams is 1568577633. It was assigned to this individual provider in the NPPES registry on August 20, 2006.
Where is Derek Williams located?
Derek Williams practices at 1001 Blythe Blvd Ste 500, Charlotte, NC 28203. The listed phone number is (704) 373-1813.
What is Derek Williams's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Adult Congenital Heart Disease, with taxonomy code 207RA0002X.
Is Derek Williams enrolled in Medicare?
Yes. Derek 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 Derek Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Williams reassigns Medicare benefits to 2 organizations: Carolinas Physicians Network, Inc. (Charlotte, NC) and Wake Forest University Health Sciences (Lexington, NC). 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 Derek Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derek Williams accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and AmeriHealth Caritas Next and 4 other insurers list Derek 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 Derek Williams affiliated with any hospitals?
According to CMS data, Derek Williams is affiliated with North Carolina Baptist Hospital.
When was this NPI record last updated?
The NPPES record for Derek Williams was last updated on July 15, 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.