ROBERT C GREAVES MD
NPI 1629003546
Emergency Medicine in Charleston, SC
About Robert C Greaves Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT C GREAVES MD (NPI 1629003546) is an individual emergency medicine provider in Charleston, South Carolina, licensed in South Carolina (28303) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Bon Secours-st Francis Xavier Hospital, and maintains a secondary practice location in Charleston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Robert C Greaves 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
5Medicare enrollment records show Robert Greaves reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Charleston, SC 29425
- Reassigned Medicare billing, South Carolina enrollment
- 2,594 clinicians in this Medicare group
Charleston, SC 29403
- Reassigned Medicare billing, South Carolina enrollment
- 129 clinicians in this Medicare group
North Charleston, SC 29405
- Reassigned Medicare billing, South Carolina enrollment
- 409 clinicians in this Medicare group
Mt Pleasant, SC 29466
- Reassigned Medicare billing, South Carolina enrollment
- 114 clinicians in this Medicare group
Summerville, SC 29486
- Reassigned Medicare billing, South Carolina enrollment
- 72 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 4
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bon Secours-St Francis Xavier Hospital
Acute Care Hospitals · Charleston, SCRoper Hospital
Acute Care Hospitals · Charleston, SCMount Pleasant Hospital
Acute Care Hospitals · Mount Pleasant, SCRoper St Francis Hospital-Berkeley Inc
Acute Care Hospitals · Summerville, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29425 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHARLESTON, SC 29425
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 Robert Greaves's NPI number?
The NPI number for Robert Greaves is 1629003546. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Robert Greaves located?
Robert Greaves practices at 171 Ashley Ave, Charleston, SC 29425. The listed phone number is (843) 792-1414.
What is Robert Greaves's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Robert Greaves enrolled in Medicare?
Yes. Robert Greaves 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 Robert Greaves's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Greaves reassigns Medicare benefits to 5 organizations: University Medical Associates Of The Medical University Of South Carol (Charleston, SC), Bon Secours St Francis Xavier Hospital, Inc. (Charleston, SC), Curana Health Of South Carolina PC (North Charleston, SC), Roper St. Francis Mount Pleasant Hospital (Mt Pleasant, SC) and Broad River Physicians Group, LLC (Summerville, SC). 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 Robert Greaves's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Robert Greaves affiliated with any hospitals?
According to CMS data, Robert Greaves is affiliated with Bon Secours-St Francis Xavier Hospital, Roper Hospital, Mount Pleasant Hospital and Roper St Francis Hospital-Berkeley Inc.
When was this NPI record last updated?
The NPPES record for Robert Greaves was last updated on November 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Robert C Greaves, MD · NPI 1629003546
Emergency Medicine physician in Charleston, South Carolina. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1629003546 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 28303 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 171 ASHLEY AVE, Charleston, SC 29425-8908
- **Phone:** (843) 792-1414
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): University Medical Associates Of The Medical University Of South Carol (NPI 1013934629, Charleston, SC); Bon Secours St Francis Xavier Hospital, Inc. (NPI 1851035075, Charleston, SC); Curana Health Of South Carolina PC (NPI 1316477896, North Charleston, SC); Roper St. Francis Mount Pleasant Hospital (NPI 1629499298, Mt Pleasant, SC); Broad River Physicians Group, LLC (NPI 1295443000, Summerville, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** November 19, 2020
- **Other identifiers:** Medicaid 283035 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1629003546) · Data from the CMS NPPES public registry.