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DR. DANIEL CLAY WILLIAMS M.D.
NPI 1124223326
Pediatrics in Charleston, SC

Active since June 18, 2007PECOS Enrolled
165 ASHLEY AVE # MSC561, MUSC CHILDREN'S HOSPITAL, CHARLESTON, SC 29425(843) 792-0435 Get Directions Write a Review

NPPES record last updated: October 15, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Daniel Clay Williams M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DANIEL CLAY WILLIAMS M.D. (NPI 1124223326) is an individual pediatrics provider in Charleston, South Carolina, licensed in South Carolina (29945) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124223326
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. DANIEL CLAY WILLIAMSCredential: M.D.
Location Address165 ASHLEY AVE # MSC561, MUSC CHILDREN'S HOSPITALCharleston, SC 29425-0001
Mailing AddressPo Box 751461Charlotte, NC 28275-1461 · (843) 792-6200
Phone(843) 792-0435
Sole ProprietorNo
Enumeration DateJune 18, 2007
Last NPPES UpdateOctober 15, 2020
NPPES CertifiedOctober 15, 2020
✔ NPI 1124223326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in SC · 29945
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
165 ASHLEY AVE # MSC561, Charleston, SC 29425
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Daniel Clay Williams M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Daniel Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Medical Associates
Same address
Pediatric Emergency Medicine
171 ASHLEY AVE
Charleston, SC 29425
  • 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
NPI 1548413453 (843) 792-1414

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29425 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Daniel Williams's NPI number?

The NPI number for Daniel Williams is 1124223326. It was assigned to this individual provider in the NPPES registry on June 18, 2007.

Where is Daniel Williams located?

Daniel Williams practices at 165 Ashley Ave # Msc561 Musc Children's Hospital, Charleston, SC 29425. The listed phone number is (843) 792-0435.

What is Daniel Williams's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Daniel Williams enrolled in Medicare?

Yes. Daniel Williams is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Daniel Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Williams reassigns Medicare benefits to University Medical Associates (Charleston, SC). 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 Daniel Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Daniel Williams accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and First Choice Next and 1 other insurer list Daniel 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 Daniel Williams was last updated on October 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.