SANJEEV SIVAKUMAR M.D.,
NPI 1639458805
Psychiatry & Neurology - Neurocritical Care in Greer, SC
About Sanjeev Sivakumar M.d., NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANJEEV SIVAKUMAR M.D., (NPI 1639458805) is an individual neurocritical care provider in Greer, South Carolina, licensed in South Carolina (39931) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS, is affiliated with Prisma Health Baptist Easley Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Sanjeev Sivakumar 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
8Medicare enrollment records show Sanjeev Sivakumar reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Taylors, SC 29687
- Reassigned Medicare billing, South Carolina enrollment
- 3,281 clinicians in this Medicare group
Alcoa, TN 37701
- Reassigned Medicare billing, Tennessee enrollment
- 295 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, South Carolina enrollment
Sheboygan, WI 53081
- Reassigned Medicare billing, Wisconsin enrollment
- 36 clinicians in this Medicare group
Green Bay, WI 54301
- Reassigned Medicare billing, Wisconsin and South Carolina enrollments
- Also billed through NPI 1851477913 (South Carolina)
- 216 clinicians in this Medicare group
Green Bay, WI 54301
- Reassigned Medicare billing, Wisconsin enrollment
- 79 clinicians in this Medicare group
Green Bay, WI 54303
- Reassigned Medicare billing, Wisconsin enrollment
- 57 clinicians in this Medicare group
Norway, MI 49870
- Reassigned Medicare billing, Michigan and South Carolina enrollments
- Also billed through NPI 1891751186 (South Carolina)
- 136 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 5
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.
Prisma Health Baptist Easley Hospital
Acute Care Hospitals · Easley, SCPrisma Health Greenville Memorial Hospital
Acute Care Hospitals · Greenville, SCOther Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREER, SC 29650
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 Sanjeev Sivakumar's NPI number?
The NPI number for Sanjeev Sivakumar is 1639458805. It was assigned to this individual provider in the NPPES registry on August 5, 2011.
Where is Sanjeev Sivakumar located?
Sanjeev Sivakumar practices at 109 Physicians Dr Ste C, Greer, SC 29650. The listed phone number is (864) 797-8800.
What is Sanjeev Sivakumar's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.
Is Sanjeev Sivakumar enrolled in Medicare?
Yes. Sanjeev Sivakumar 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 Sanjeev Sivakumar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sanjeev Sivakumar reassigns Medicare benefits to 8 organizations: Prisma Health University Medical Group (Taylors, SC), Blount Memorial Physician Group, Inc (Alcoa, TN), Osf Multi-Specialty Group (Peoria, IL), St Nicholas Hospital-Sisters Of The Third Order Of St Francis (Sheboygan, WI), St. Clare Memorial Hospital, Inc. (Green Bay, WI) and 3 more organizations, listed in the Medicare section above. 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 Sanjeev Sivakumar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sanjeev Sivakumar accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Anthem Blue Cross and Blue Shield and Aspirus Health Plan and 6 other insurers list Sanjeev Sivakumar 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 Sanjeev Sivakumar affiliated with any hospitals?
According to CMS data, Sanjeev Sivakumar is affiliated with Prisma Health Baptist Easley Hospital and Prisma Health Greenville Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Sanjeev Sivakumar was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Sanjeev Sivakumar, M.D., · NPI 1639458805
Neurocritical Care physician in Greer, South Carolina. Individual provider, active in the CMS NPPES registry since August 5, 2011.
## Identity
- **NPI:** 1639458805 (Entity type: Individual)
- **Enumerated:** August 5, 2011
- **Primary specialty:** Psychiatry & Neurology - Neurocritical Care · taxonomy 2084A2900X
- **State license:** 39931 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 109 PHYSICIANS DR STE C, Greer, SC 29650-2446
- **Phone:** (864) 797-8800 · **Fax:** (864) 797-8805
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Prisma Health University Medical Group (NPI 1801524392, Taylors, SC); Blount Memorial Physician Group, Inc (NPI 1699710194, Alcoa, TN); Osf Multi-Specialty Group (NPI 1922445527, Peoria, IL); St Nicholas Hospital-Sisters Of The Third Order Of St Francis (NPI 1447737762, Sheboygan, WI); St. Clare Memorial Hospital, Inc. (NPI 1093173791, Green Bay, WI); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** August 25, 2026
- **Other identifiers:** Medicaid Q115430 (TN); Medicaid 399312 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1639458805) · Data from the CMS NPPES public registry.