Karen Johnson, DDS, MHS
NPI 1114921491 · Periodontics · Columbia, SC
Karen Johnson, DDS, MHS is a Periodontics provider in Columbia, SC (NPI 1114921491).
Provider details
- NPI number
- 1114921491
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DDS, MHS
- Sex
- Female
- Sole proprietor
- No
- License
- 11759 (MD)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Amoxicillin | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 741 Greenlawn DrColumbia, SC 29209-2630Phone: (803) 606-9011Fax: (803) 630-1529
Registry dates
- Enumerated
- 2005-06-02
- Last updated
- 2023-10-10
- Certified
- 2023-10-10
Frequently asked questions
- What is Karen Johnson's NPI number?
- Karen Johnson's National Provider Identifier (NPI) is 1114921491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Johnson's specialty?
- Karen Johnson is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is Karen Johnson located?
- Karen Johnson's practice location on file with NPPES is 2757 Laurel St Ste 1, Columbia, SC 29204-2037.
- What is Karen Johnson's phone number?
- The practice phone number listed in the NPPES registry for Karen Johnson is (803) 606-9011.
- Is Karen Johnson's NPI active?
- Yes — Karen Johnson's NPI (1114921491) is active in the NPPES registry as of the last update on 2023-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.