WILLIAM EUGENE SPEARS IV MD
NPI 1780187567
Psychiatry & Neurology - Neurocritical Care in Greenville, SC
About William Eugene Spears Iv Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM EUGENE SPEARS IV MD (NPI 1780187567) is an individual neurocritical care provider in Greenville, South Carolina, licensed in South Carolina (91854) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Spartanburg Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
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
William Eugene Spears Iv 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 Reassignments
3Medicare enrollment records show William Spears reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenville, SC 29607
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Prisma Health University Medical Group
- 3,281 clinicians in this Medicare group
Hendersonville, NC 28792
- Reassigned Medicare billing, North Carolina enrollment
- Medicare enrollment name: Novant Health Medical Group, LLC
- 2,998 clinicians in this Medicare group
Hagerstown, MD 21740
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,080 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.
Spartanburg Medical Center
Acute Care Hospitals · Spartanburg, SCPrisma Health Greenville Memorial Hospital
Acute Care Hospitals · Greenville, SCFrequently 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 Spears's NPI number?
The NPI number for William Spears is 1780187567. It was assigned to this individual provider in the NPPES registry on March 17, 2018.
Where is William Spears located?
William Spears practices at 200 Patewood Drive Ste B350, Greenville, SC 29615. The listed phone number is (864) 454-4500.
What is William Spears's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.
Is William Spears enrolled in Medicare?
Yes. William Spears 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 Spears's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Spears reassigns Medicare benefits to 3 organizations: Ghs Partners In Health, Inc. (Greenville, SC), Novant Medical Group, Inc. (Hendersonville, NC) and Wellspan Medical Group (Hagerstown, MD). 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 Spears's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Spears accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Blue Cross and Blue Shield of NC and BlueCross BlueShield of South Carolina and 2 other insurers list William Spears 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 Spears affiliated with any hospitals?
According to CMS data, William Spears is affiliated with Spartanburg Medical Center and Prisma Health Greenville Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Spears was last updated on March 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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 Eugene Spears IV, MD · NPI 1780187567
Neurocritical Care physician in Greenville, South Carolina. Individual provider, active in the CMS NPPES registry since March 17, 2018.
## Identity
- **NPI:** 1780187567 (Entity type: Individual)
- **Enumerated:** March 17, 2018
- **Primary specialty:** Psychiatry & Neurology - Neurocritical Care · taxonomy 2084A2900X
- **State license:** 91854 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 PATEWOOD DRIVE STE B350, Greenville, SC 29615-2307
- **Phone:** (864) 454-4500
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Ghs Partners In Health, Inc. (NPI 1235446337, Greenville, SC); Novant Medical Group, Inc. (NPI 1124892765, Hendersonville, NC); Wellspan Medical Group (NPI 1588249668, Hagerstown, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2018
## Record status
- **NPPES last updated:** March 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1780187567) · Data from the CMS NPPES public registry.