Clanford Lyonel Johnson, M.D.
Family Medicine Physician · Greer, SC
Clanford Lyonel Johnson, M.D. is a family medicine physician with a practice address in Greer, South Carolina, and NPI 1750342879, issued on Mar 29, 2006. Check the license (South Carolina 25112, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Clanford Lyonel Johnson
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 25112 SC
200400688 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1305 S Suber RD, Greer, SC 29650
- Phone
- (864) 989-4609
- Enumerated
- Mar 29, 2006
- Record last updated
- Jul 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 5904663 NC
- Medicare enrollment
- Enrolled (PECOS I20041122001091); accepts Medicare assignment
- Medical or professional school
- University Of South Alabama College Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,700 in South Carolina → Look up another NPI →
Also registered at 1305 S Suber RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Luke Burchard, M.D.Family Medicine Physician1356689533
- Wade Harrell, PTPhysical Therapist1326454323
- Doralyn Jones, D.O.Family Medicine Physician1346404647
- Kerri Lively, OTOccupational Therapist1780763086
- Julia Maclay, CRNPFamily Nurse Practitioner1114582228
- Lizanne Olyarchuk, FNPAdult Health Nurse Practitioner1619280138
Verify Clanford Lyonel Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 25112Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average family medicine physician in 2024
633 Medicare Part D claims for 241 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 12 claims were for opioids.
Most prescribed
- Prednisone41 claims
- Eliquis39 claims
- Doxycycline Hyclate36 claims
- Furosemide31 claims
- Metoprolol Tartrate29 claims
- Pantoprazole Sodium28 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.
Bills Medicare through one group practice
- Moses Cone Physician Services, IncGreensboro, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clanford Lyonel Johnson among 2,700 family medicine physician records in South Carolina
Clanford Lyonel Johnson, M.D. 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
- Graduated2001 · median 2006 among the 1,638 with a school on file
- Record last updated2015 · 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).
66 family medicine physician records list a practice address in Greer
They are 66 of the 1,131 NPPES records with a practice address in Greer, and 2,700 family medicine physician records in South Carolina.
All 2,700 in South Carolina → Every provider in Greer → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jack Brunson, M.D.Greer, SC 296501316918253
- Maria Frisch, MDGreer, SC 296501639181662
- Allen Gamble, D.O.Greer, SC 296501265493605
- Rebecca Haskill-Strowd, MDGreer, SC 296501619995065
- Benjamin Hester, M.D.Greer, SC 296501538225206
- David Hudson, M.D.Greer, SC 296501104897891
- Frances Kunda, MDGreer, SC 296501609852391
- Lee Saindon, MDGreer, SC 296501821102575
Common questions
What is Clanford Lyonel Johnson, M.D.'s NPI number?
Clanford Lyonel Johnson, M.D.'s National Provider Identifier (NPI) is 1750342879, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clanford Lyonel Johnson, M.D. located?
The NPPES record lists a practice address at 1305 S Suber RD, Greer, SC, 29650. Phone: (864) 989-4609. Providers update this record themselves, so call before visiting.
How can I verify Clanford Lyonel Johnson, M.D.'s license?
NPPES lists South Carolina license number 25112, 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 Clanford Lyonel Johnson, M.D. prescribe under Medicare Part D?
In 2024, Clanford Lyonel Johnson, M.D. had 633 Medicare Part D claims for 241 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.