Mark Humphrey, MD
NPI 1801976402 · Family Medicine Physician · Winnsboro, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Humphrey, MD is a Family Medicine Physician provider in Winnsboro, SC (NPI 1801976402).
Provider details
- NPI number
- 1801976402
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R1133 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
434 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 171 | $96 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 73 | $65 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 59 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 47 | $130 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 43 | $78 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 238 | 63 |
| Amlodipine Besylate | 204 | 48 |
| Metformin Hcl | 139 | 32 |
| Omeprazole | 129 | 26 |
| Levothyroxine Sodium | 104 | 16 |
| Fluticasone Propionate | 104 | 27 |
| Hydrochlorothiazide | 92 |
Practice location
Mailing address
Additional practice locations (1)
- 3209 Colonial DrUniversity Specialty Clinics-Family & Preventive MediciColumbia, SC 29203-6930Phone: (803) 434-6113
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2024-07-15
- Certified
- 2024-07-15
Frequently asked questions
- What is Mark Humphrey's NPI number?
- Mark Humphrey's National Provider Identifier (NPI) is 1801976402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Humphrey's specialty?
- Mark Humphrey is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Humphrey located?
- Mark Humphrey's practice location on file with NPPES is 56 US Highway 321 Byp N, Winnsboro, SC 29180-7100.
- What is Mark Humphrey's phone number?
- The practice phone number listed in the NPPES registry for Mark Humphrey is (803) 635-6343.
- Does Mark Humphrey accept Medicare?
- Mark Humphrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Humphrey's NPI active?
- Yes — Mark Humphrey's NPI (1801976402) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.