Quick answers
- Does William R. Sigmon Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William R. Sigmon Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does William R. Sigmon Jr. see?
- In 2024, CMS data shows 234 Original Medicare patients and 1,773 services for William R. Sigmon Jr.. This counts Original Medicare only and measures volume, not quality.
- What is William R. Sigmon Jr.'s NPI number?
- 1750439519. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for William R. Sigmon Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 234 |
|---|---|
| Services billed to Medicare | 1,773 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)508 services
- Calculation of radiation therapy dose (77300)224 services
- Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment (G6017)212 services
- Design and construction of complex radiation treatment device (77334)195 services
- Radiation treatment management, 5 treatment sessions (77427)187 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High blood pressure74%
- Arthritis46%
- Ischemic heart disease34%
- Diabetes33%
Hospitals where William R. Sigmon Jr. works
Medicare's Facility Affiliation Data lists William R. Sigmon Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Catawba Valley Medical CenterHickory, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340143
- Frye Regional Medical CenterHickory, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340116
Practice locations
Addresses where William R. Sigmon Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 920 Church N StConcord, NC 28025 (704) 333‑7376
Group practices
Medicare enrollment lists William R. Sigmon Jr. as a member of this group (CMS data updated October 2, 2026).
- Southeast Radiation Oncology Group, P.A.52 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in North Carolina
Clinicians with the same Medicare primary specialty in North Carolina — not a recommendation.
Other clinicians in Southeast Radiation Oncology Group, P.A.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Carolina At Chapel Hill School Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750439519 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians