Mark Edward Humphrey, MD
Family Medicine Physician · Winnsboro, SC
Mark Edward Humphrey, MD is a family medicine physician with a practice address in Winnsboro, South Carolina, and NPI 1801976402, issued on Oct 17, 2006. Check the license (South Carolina 36168, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Edward Humphrey
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 36168 SC
R1133 KY
Self-reported in NPPES; status is on the state search - Practice location
- 56 US Highway 321 Byp N, Winnsboro, SC 29180
- Phone
- (803) 635-6343
- Enumerated
- Oct 17, 2006
- Record last updated
- Jul 15, 2024
- Fax
- (803) 635-6343
- Medicaid ID
- 361682 SC
- Medicare enrollment
- Enrolled (PECOS I20131030001039); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,700 in South Carolina → Look up another NPI →
Also registered at 56 US Highway 321 Byp N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brittany BorchersPhysician Assistant1275316887
- Stephen Brunton, M.D.Family Medicine Physician1134116957
- Kayleigh Rushford, FNPFamily Nurse Practitioner1275358244
- Mark Shaffer, MDFamily Medicine Physician1639308380
- Kylie Whittle, MDFamily Medicine Physician1528682622
Verify Mark Edward Humphrey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 36168Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average family medicine physician in 2024
3,837 Medicare Part D claims for 228 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 141 claims were for opioids.
Most prescribed
- Atorvastatin Calcium238 claims
- Amlodipine Besylate204 claims
- Metformin Hcl139 claims
- Omeprazole129 claims
- Fluticasone Propionate104 claims
- Levothyroxine Sodium104 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 99.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Prisma Health Medical Group-MidlandsColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Edward Humphrey among 2,700 family medicine physician records in South Carolina
Mark Edward Humphrey, MD is one of 2,700 family medicine physician records with a practice address in South Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2008 · median 2006 among the 1,638 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Winnsboro
They are 10 of the 97 NPPES records with a practice address in Winnsboro, and 2,700 family medicine physician records in South Carolina.
All 2,700 in South Carolina → Every provider in Winnsboro → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Stephen Brunton, M.D.Winnsboro, SC 291801134116957
- Roger Gaddy, MDWinnsboro, SC 291801669495917
- Susan Grosslight, NPWinnsboro, SC 291801821100835
- Harmon Patrick, MDWinnsboro, SC 291801174546287
- Mark Shaffer, MDWinnsboro, SC 291801639308380
- Deborah Stuck, MDWinnsboro, SC 291801912913435
- Gordon Weigle, M.D.Winnsboro, SC 291801093768616
- Kylie Whittle, MDWinnsboro, SC 291801528682622
Common questions
What is Mark Edward Humphrey, MD's NPI number?
Mark Edward Humphrey, MD's National Provider Identifier (NPI) is 1801976402, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Edward Humphrey, MD located?
The NPPES record lists a practice address at 56 US Highway 321 Byp N, Winnsboro, SC, 29180. Phone: (803) 635-6343. Providers update this record themselves, so call before visiting.
How can I verify Mark Edward Humphrey, MD's license?
NPPES lists South Carolina license number 36168, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Edward Humphrey, MD prescribe under Medicare Part D?
In 2024, Mark Edward Humphrey, MD had 3,837 Medicare Part D claims for 228 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark Edward Humphrey, MD's MIPS final score?
The 2023 MIPS final score is 99.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.