NPPES file of Aug 9, 2026

Katharine Claussen Smith, D.M.D

Periodontics · Mc Clellanville, SC

Katharine Claussen Smith, D.M.D is a periodontics with a practice address in Mc Clellanville, South Carolina, and NPI 1588921860, issued on Apr 11, 2012. Check the license (South Carolina 920, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588921860
Name
Katharine Claussen Smith
Credential
D.M.D
Primary taxonomy
Periodontics 1223P0300X
License number
920 SC
Self-reported in NPPES; status is on the state search
Practice location
111 Baker St, Mc Clellanville, SC 29458
Phone
(843) 452-2454
Enumerated
Apr 11, 2012
Record last updated
Sep 28, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Katharine Claussen Smith in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 920
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Carolina license search

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26% more Medicare Part D claims than the average periodontics in 2024

348 Medicare Part D claims for 128 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 25 claims were for opioids.

  1. Katharine Smith348
  2. Specialty average277

Most prescribed

  1. Amoxicillin97 claims
  2. Ibuprofen73 claims
  3. Chlorhexidine Gluconate28 claims
  4. Doxycycline Hyclate21 claims
  5. Hydrocodone-Acetaminophen18 claims
  6. Amoxicillin-Clavulanate Potass14 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.

Katharine Claussen Smith among 92 periodontics records in South Carolina

Katharine Claussen Smith, D.M.D is one of 92 periodontics records with a practice address in South Carolina. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.

  • NPI issued2012 · 72% of these records are older, 22% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2016 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 periodontics record lists a practice address in Mc Clellanville

They are 1 of the 22 NPPES records with a practice address in Mc Clellanville, and 92 periodontics records in South Carolina.

The 8 periodontics records with the nearest ZIP codes

  1. Elizabeth Bjornson, DDS, MHSMt Pleasant, SC 294641750304176
  2. Michael Cuenin, DMDMount Pleasant, SC 294641043277684
  3. Luke Liszka, DMDMount Pleasant, SC 294641659686707
  4. Jennifer Lohse, DMD, MSMount Pleasant, SC 294641861496325
  5. David Oyster, DMD,MSMt Pleasant, SC 294661821113796
  6. Douglas Lancaster, DMDGoose Creek, SC 294451194704452
  7. Kelly Ford, DMDSummerville, SC 294831760534283
  8. David Ivey, DMDSummerville, SC 294831104935717

Common questions

What is Katharine Claussen Smith, D.M.D's NPI number?

Katharine Claussen Smith, D.M.D's National Provider Identifier (NPI) is 1588921860, issued on Apr 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Claussen Smith, D.M.D located?

The NPPES record lists a practice address at 111 Baker St, Mc Clellanville, SC, 29458. Phone: (843) 452-2454. Providers update this record themselves, so call before visiting.

How can I verify Katharine Claussen Smith, D.M.D's license?

NPPES lists South Carolina license number 920, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Katharine Claussen Smith, D.M.D prescribe under Medicare Part D?

In 2024, Katharine Claussen Smith, D.M.D had 348 Medicare Part D claims for 128 beneficiaries; the average among periodontics prescribers was 277. 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.