MR. MARK HOWARD OVERTON M.D.
NPI 1568437184
Internal Medicine - Geriatric Medicine in Little River, SC
About Mr. Mark Howard Overton M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK HOWARD OVERTON M.D. (NPI 1568437184) is an individual geriatric medicine provider in Little River, South Carolina, licensed in South Carolina (32215) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Hugh Chatham Memorial Hospital, and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Mr. Mark Howard Overton 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
9Medicare enrollment records show Mark Overton reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Myrtle Beach, SC 29572
- Reassigned Medicare billing, South Carolina enrollment
- 529 clinicians in this Medicare group
Loris, SC 29569
- Reassigned Medicare billing, South Carolina enrollment
- 240 clinicians in this Medicare group
Murrells Inlet, SC 29576
- Reassigned Medicare billing, South Carolina enrollment
- 249 clinicians in this Medicare group
Georgetown, SC 29440
- Reassigned Medicare billing, South Carolina enrollment
- 261 clinicians in this Medicare group
Kinston, NC 28501
- Reassigned Medicare billing, North Carolina enrollment
- 1,653 clinicians in this Medicare group
Rocky Mount, NC 27804
- Reassigned Medicare billing, North Carolina enrollment
- 393 clinicians in this Medicare group
Aiken, SC 29801
- Reassigned Medicare billing, South Carolina enrollment
- 117 clinicians in this Medicare group
Elizabeth City, NC 27909
- Reassigned Medicare billing, North Carolina enrollment
- 176 clinicians in this Medicare group
Macon, GA 31210
- Reassigned Medicare billing, South Carolina enrollment
- 268 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.
Hugh Chatham Memorial Hospital
Acute Care Hospitals · Elkin, NCVidant Chowan Hospital
Critical Access Hospitals · Edenton, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29566 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Overton's NPI number?
The NPI number for Mark Overton is 1568437184. It was assigned to this individual provider in the NPPES registry on February 17, 2006.
Where is Mark Overton located?
Mark Overton practices at 4237 River Hills Drive, Suite 150 River Hills Medical Plaza, Little River, SC 29566. The listed phone number is (843) 281-2778.
What is Mark Overton's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Mark Overton enrolled in Medicare?
Yes. Mark Overton 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 Overton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Overton reassigns Medicare benefits to 9 organizations: Southeastern Hospitalist Services PC (Myrtle Beach, SC), Mcleod Loris Seacoast Hospital (Loris, SC), Waccamaw Community Hospital (Murrells Inlet, SC), Georgetown Memorial Hospital (Georgetown, SC), Vidant Medical Group LLC (Kinston, NC) 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 Overton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Overton accept?
Health plans from AmeriHealth Caritas Next, Cigna Healthcare and Oscar Health Plan of North Carolina, Inc list Mark Overton 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 Overton affiliated with any hospitals?
According to CMS data, Mark Overton is affiliated with Hugh Chatham Memorial Hospital and Vidant Chowan Hospital.
When was this NPI record last updated?
The NPPES record for Mark Overton was last updated on May 18, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Mr. Mark Howard Overton, M.D. · NPI 1568437184
Geriatric Medicine physician in Little River, South Carolina. Individual provider, active in the CMS NPPES registry since February 17, 2006.
## Identity
- **NPI:** 1568437184 (Entity type: Individual)
- **Enumerated:** February 17, 2006
- **Primary specialty:** Internal Medicine - Geriatric Medicine · taxonomy 207RG0300X
- **State license:** 32215 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 4237 RIVER HILLS DRIVE, SUITE 150, RIVER HILLS MEDICAL PLAZA, Little River, SC 29566-6444
- **Phone:** (843) 281-2778 · **Fax:** (843) 281-2785
## 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): Southeastern Hospitalist Services PC (NPI 1003280108, Myrtle Beach, SC); Mcleod Loris Seacoast Hospital (NPI 1265708119, Loris, SC); Waccamaw Community Hospital (NPI 1972503910, Murrells Inlet, SC); Georgetown Memorial Hospital (NPI 1982604021, Georgetown, SC); Vidant Medical Group LLC (NPI 1376049619, Kinston, NC); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1981
## Record status
- **NPPES last updated:** May 18, 2012
- **Other identifiers:** Medicare UPIN C85858 (SC); Medicare UPIN C85858 (PA); Medicare ID-Type Unspecified 732408JJF (PA); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1568437184) · Data from the CMS NPPES public registry.