DR. WILLIAM REGINALD SIGMON JR. M.D.
NPI 1750439519
Radiology - Radiation Oncology in Hickory, NC
About Dr. William Reginald Sigmon Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM REGINALD SIGMON JR. M.D. (NPI 1750439519) is an individual radiation oncology provider in Hickory, North Carolina, licensed in North Carolina (32862) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Frye Regional Medical Center, and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. William Reginald Sigmon Jr. 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
2Medicare enrollment records show William Sigmon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mooresville, NC 28117
- Reassigned Medicare billing, North Carolina enrollment
- 40 clinicians in this Medicare group
Charlotte, NC 28204
- Reassigned Medicare billing, North Carolina enrollment
- 56 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 15
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.
Frye Regional Medical Center
Acute Care Hospitals · Hickory, NCCatawba Valley Medical Center
Acute Care Hospitals · Hickory, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 28602 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HICKORY, NC 28602
HICKORY, NC 28602
HICKORY, NC 28602
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 William Sigmon's NPI number?
The NPI number for William Sigmon is 1750439519. It was assigned to this individual provider in the NPPES registry on January 8, 2007.
Where is William Sigmon located?
William Sigmon practices at 810 Fairgrove Church Rd, Hickory, NC 28602. The listed phone number is (828) 326-3856.
What is William Sigmon's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is William Sigmon enrolled in Medicare?
Yes. William Sigmon 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 William Sigmon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Sigmon reassigns Medicare benefits to 2 organizations: Radiation Oncology Centers Of The Carolinas, Inc. (Mooresville, NC) and Southeast Radiation Oncology Group, P.A. (Charlotte, 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 William Sigmon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Sigmon accept?
Health plans from Blue Cross and Blue Shield of NC, Oscar Health Plan of North Carolina, Inc and UnitedHealthcare list William Sigmon 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 William Sigmon affiliated with any hospitals?
According to CMS data, William Sigmon is affiliated with Frye Regional Medical Center and Catawba Valley Medical Center.
When was this NPI record last updated?
The NPPES record for William Sigmon was last updated on July 3, 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.