Carl Allen Johnson, MD
Dermatology Physician · Columbia, SC
Carl Allen Johnson, MD is a dermatology physician with a practice address in Columbia, South Carolina, and NPI 1700908670, issued on Apr 4, 2007. Check the license (South Carolina 11965, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Carl Allen Johnson
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 11965 SC
Self-reported in NPPES; status is on the state search - Practice location
- 2610 Blossom St, Columbia, SC 29205
- Phone
- (805) 740-1317
- Enumerated
- Apr 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 217 in South Carolina → Look up another NPI →
Verify Carl Allen 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 11965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average dermatology physician in 2024
16 Medicare Part D claims, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
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.
Carl Allen Johnson among 217 dermatology physician records in South Carolina
Carl Allen Johnson, MD is one of 217 dermatology physician records with a practice address in South Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2007 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in South Carolina
There are 217 dermatology physician records in South Carolina.
All 217 in South Carolina → Every provider in Columbia → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Mark Blaskis, MDColumbia, SC 292041841259124
- Allison Cashman, M.D.Columbia, SC 292041063433936
- Cody Connor, M.D.Columbia, SC 292041447631619
- Ann Harriott Ervin, MDColumbia, SC 292041134217565
- Mavinder GuramColumbia, SC 292041235768797
- Seth Howell, MDColumbia, SC 292041225532369
- Richard Laws, M.D.Columbia, SC 292041487602207
- Annette Lynn, M.D.Columbia, SC 292041194792010
Common questions
What is Carl Allen Johnson, MD's NPI number?
Carl Allen Johnson, MD's National Provider Identifier (NPI) is 1700908670, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Carl Allen Johnson, MD located?
The NPPES record lists a practice address at 2610 Blossom St, Columbia, SC, 29205. Phone: (805) 740-1317. Providers update this record themselves, so call before visiting.
How can I verify Carl Allen Johnson, MD's license?
NPPES lists South Carolina license number 11965, 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 Carl Allen Johnson, MD prescribe under Medicare Part D?
In 2024, Carl Allen Johnson, MD had 16 Medicare Part D claims; the average among dermatology physician prescribers was 797. 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.