DR. MARK ROBERT KEATON M.D.
NPI 1477530533
Internal Medicine - Hematology & Oncology in Florence, SC
About Dr. Mark Robert Keaton M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ROBERT KEATON M.D. (NPI 1477530533) is an individual hematology & oncology provider in Florence, South Carolina, licensed in South Carolina (51420) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Wilcox Memorial Hospital, and maintains a secondary practice location in Aiken.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 6
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 Robert Keaton 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
10Medicare enrollment records show Mark Keaton reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Florence, SC 29505
- Reassigned Medicare billing, South Carolina enrollment
- 509 clinicians in this Medicare group
Augusta, GA 30912
- Reassigned Medicare billing, Georgia and South Carolina enrollments
- 1,151 clinicians in this Medicare group
Juneau, WI 53039
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Havre, MT 59501
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1427059070 (Montana)
- 81 clinicians in this Medicare group
Lihue, HI 96766
- Reassigned Medicare billing, Hawaii enrollment
- 298 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
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.
Wilcox Memorial Hospital
Acute Care Hospitals · Lihue, HIMarshfield Medical Center - Minocqua
Acute Care Hospitals · Minocqua, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FLORENCE, SC 29505
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 Keaton's NPI number?
The NPI number for Mark Keaton is 1477530533. It was assigned to this individual provider in the NPPES registry on December 29, 2005.
Where is Mark Keaton located?
Mark Keaton practices at 805 Pamplico Hwy Ste 315, Florence, SC 29505. The listed phone number is (843) 674-6460.
What is Mark Keaton's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Mark Keaton enrolled in Medicare?
Yes. Mark Keaton 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 Keaton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Keaton reassigns Medicare benefits to 10 organizations: Carolina Family Care, Inc (Florence, SC), Au Medical Associates Inc (Augusta, GA), Beaver Dam Community Hospitals Inc (Juneau, WI), Mchs Hospitals, Inc. (Plover, WI), Marshfield Clinic Inc (Marshfield, WI) and 5 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 Keaton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Keaton accept?
Health plans from Sanford Health Plan list Mark Keaton 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 Keaton affiliated with any hospitals?
According to CMS data, Mark Keaton is affiliated with Wilcox Memorial Hospital and Marshfield Medical Center - Minocqua.
When was this NPI record last updated?
The NPPES record for Mark Keaton was last updated on January 25, 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.
# Dr. Mark Robert Keaton, M.D. · NPI 1477530533
Hematology & Oncology physician in Florence, South Carolina. Individual provider, active in the CMS NPPES registry since December 29, 2005.
## Identity
- **NPI:** 1477530533 (Entity type: Individual)
- **Enumerated:** December 29, 2005
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 51420 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 805 PAMPLICO HWY STE 315, Florence, SC 29505-6047
- **Phone:** (843) 674-6460
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Carolina Family Care, Inc (NPI 1093076457, Florence, SC); Au Medical Associates Inc (NPI 1841230620, Augusta, GA); Beaver Dam Community Hospitals Inc (NPI 1831410521, Juneau, WI); Mchs Hospitals, Inc. (NPI 1386249894, Plover, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Georgia School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** January 25, 2022
- **Other identifiers:** Medicaid G28423 (SC); Other 221275 (GA); Other 830008428 (GA); and 3 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1477530533) · Data from the CMS NPPES public registry.