WILLIAM A COLLINS III MD
NPI 1851365605
Radiology - Radiation Oncology in Sumter, SC
About William A Collins Iii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM A COLLINS III MD (NPI 1851365605) is an individual radiation oncology provider in Sumter, South Carolina, licensed in South Carolina (16225) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mcleod Regional Medical Center-pee Dee, and maintains a secondary practice location in Charleston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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
William A Collins Iii Md 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 Reassignment
Medicare enrollment records show William Collins reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Columbia, SC 29201
- Reassigned Medicare billing, South Carolina enrollment
- 3,281 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 2
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.
Mcleod Regional Medical Center-Pee Dee
Acute Care Hospitals · Florence, SCPrisma Health Tuomey Hospital
Acute Care Hospitals · Sumter, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29150 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Collins's NPI number?
The NPI number for William Collins is 1851365605. It was assigned to this individual provider in the NPPES registry on February 16, 2006.
Where is William Collins located?
William Collins practices at 130 N Washington St, Sumter, SC 29150. The listed phone number is (803) 774-8888.
What is William Collins's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is William Collins enrolled in Medicare?
Yes. William Collins 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 organization bills Medicare for William Collins's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Collins reassigns Medicare benefits to Prisma Health University Medical Group (Columbia, 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 William Collins's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Collins accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and InStil Health list William Collins 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 Collins affiliated with any hospitals?
According to CMS data, William Collins is affiliated with Mcleod Regional Medical Center-Pee Dee and Prisma Health Tuomey Hospital.
When was this NPI record last updated?
The NPPES record for William Collins was last updated on February 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# William A Collins III, MD · NPI 1851365605
Radiation Oncology physician in Sumter, South Carolina. Individual provider, active in the CMS NPPES registry since February 16, 2006.
## Identity
- **NPI:** 1851365605 (Entity type: Individual)
- **Enumerated:** February 16, 2006
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** 16225 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 130 N WASHINGTON ST, Sumter, SC 29150-4920
- **Phone:** (803) 774-8888 · **Fax:** (803) 778-6376
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Prisma Health University Medical Group (NPI 1982292843, Columbia, SC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 1990
## Record status
- **NPPES last updated:** February 18, 2022
- **Other identifiers:** Medicaid GP1242 (SC); Medicaid 162255 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1851365605) · Data from the CMS NPPES public registry.