Clanford Johnson, M.D.
NPI 1750342879 · Family Medicine Physician · Greer, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clanford Johnson, M.D. is a Family Medicine Physician provider in Greer, SC (NPI 1750342879).
Provider details
- NPI number
- 1750342879
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 200400688 (NC)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
387 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 133 | $73 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 94 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 90 | $111 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 | $122 |
| Critical Care, First 30-74 Minutes99291 | 25 | $198 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 41 | 39 |
| Apixabanbrand: Eliquis | 39 | 24 |
| Doxycycline Hyclate | 36 | 36 |
| Furosemide | 31 | 20 |
| Metoprolol Tartrate | 29 | 16 |
| Pantoprazole Sodium | 28 | 21 |
| Amlodipine Besylate | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2015-07-29
Frequently asked questions
- What is Clanford Johnson's NPI number?
- Clanford Johnson's National Provider Identifier (NPI) is 1750342879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clanford Johnson's specialty?
- Clanford Johnson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Clanford Johnson located?
- Clanford Johnson's practice location on file with NPPES is 1305 S Suber Rd, Greer, SC 29650-0944.
- What is Clanford Johnson's phone number?
- The practice phone number listed in the NPPES registry for Clanford Johnson is (864) 989-4609.
- Does Clanford Johnson accept Medicare?
- Clanford Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clanford Johnson's NPI active?
- Yes — Clanford Johnson's NPI (1750342879) is active in the NPPES registry as of the last update on 2015-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.