DR. MARK ANDREW ELLIS MD
NPI 1780835298
Emergency Medicine in Spartanburg, SC
About Dr. Mark Andrew Ellis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ANDREW ELLIS MD (NPI 1780835298) is an individual emergency medicine provider in Spartanburg, South Carolina, licensed in South Carolina (33112) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS, is affiliated with Mountain Lakes Medical Center, and is a graduate of University Of Texas Medical School At Houston (2005).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Mark Andrew Ellis 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
9Medicare enrollment records show Mark Ellis reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Spartanburg, SC 29303
- Reassigned Medicare billing, South Carolina enrollment
- 754 clinicians in this Medicare group
Spartanburg, SC 29306
- Reassigned Medicare billing, South Carolina enrollment
- 413 clinicians in this Medicare group
Greer, SC 29651
- Reassigned Medicare billing, South Carolina enrollment
- 313 clinicians in this Medicare group
Greer, SC 29650
- Reassigned Medicare billing, South Carolina enrollment
- 3,281 clinicians in this Medicare group
Greenville, SC 29615
- Reassigned Medicare billing, South Carolina enrollment
- 735 clinicians in this Medicare group
Anderson, SC 29621
- Reassigned Medicare billing, South Carolina enrollment
- 116 clinicians in this Medicare group
Clayton, GA 30525
- Reassigned Medicare billing, Georgia enrollment
- 24 clinicians in this Medicare group
Hartsville, SC 29550
- Reassigned Medicare billing, South Carolina enrollment
- 160 clinicians in this Medicare group
Roswell, GA 30076
- Reassigned Medicare billing, Georgia enrollment
- 3,885 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mountain Lakes Medical Center
Critical Access Hospitals · Clayton, GASpartanburg Medical Center
Acute Care Hospitals · Spartanburg, SCCherokee Medical Center
Acute Care Hospitals · Gaffney, SCPelham Medical Center
Acute Care Hospitals · Greer, SCUnion Medical Center
Acute Care Hospitals · Union, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29303 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.
SPARTANBURG, SC 29303
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 Mark Ellis's NPI number?
The NPI number for Mark Ellis is 1780835298. It was assigned to this individual provider in the NPPES registry on October 2, 2008.
Where is Mark Ellis located?
Mark Ellis practices at 101 E Wood St, Spartanburg, SC 29303. The listed phone number is (864) 560-7025.
What is Mark Ellis's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Ellis enrolled in Medicare?
Yes. Mark Ellis 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 Mark Ellis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Ellis reassigns Medicare benefits to 9 organizations: Spartanburg Medical Center (Spartanburg, SC), Prisma Health-Upstate (Spartanburg, SC), Pelham Medical Center (Greer, SC), Prisma Health University Medical Group (Greer, SC), Greenville Health System (Greenville, SC) and 4 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 Mark Ellis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Ellis accept?
Health plans from First Choice Next list Mark Ellis 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 Mark Ellis affiliated with any hospitals?
According to CMS data, Mark Ellis is affiliated with Mountain Lakes Medical Center, Spartanburg Medical Center, Cherokee Medical Center, Pelham Medical Center and Union Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Ellis was last updated on December 28, 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.
# Dr. Mark Andrew Ellis, MD · NPI 1780835298
Emergency Medicine physician in Spartanburg, South Carolina. Individual provider, active in the CMS NPPES registry since October 2, 2008.
## Identity
- **NPI:** 1780835298 (Entity type: Individual)
- **Enumerated:** October 2, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 33112 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 E WOOD ST, Spartanburg, SC 29303-3040
- **Phone:** (864) 560-7025 · **Fax:** (864) 560-7388
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Spartanburg Medical Center (NPI 1144080227, Spartanburg, SC); Prisma Health-Upstate (NPI 1629432869, Spartanburg, SC); Pelham Medical Center (NPI 1245496983, Greer, SC); Prisma Health University Medical Group (NPI 1003619313, Greer, SC); Greenville Health System (NPI 1184049041, Greenville, SC); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At Houston, class of 2005
## Record status
- **NPPES last updated:** December 28, 2020
- **Other identifiers:** Medicaid 331126 (SC); Medicaid 5917294 (NC)
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Source: [NPI Profile](https://npiprofile.com/npi/1780835298) · Data from the CMS NPPES public registry.