Registry data as of Aug 27, 2026

John Armbruster, DDS

General Practice Dentistry · Woodruff, SC

John Armbruster, DDS is a general practice dentistry with a practice address in Woodruff, South Carolina, and NPI 1336174135, issued on Jul 11, 2006. Check the license (South Carolina 3509, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1336174135
Name
John Armbruster
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
3509 SC
Self-reported in NPPES; status is on the state search
Practice location
601 E. Georgia Street, Woodruff, SC 29388
Phone
(864) 476-8315
Enumerated
Jul 11, 2006
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 John Armbruster 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 3509
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

50% more Medicare Part D claims than the average general practice dentistry in 2024

126 Medicare Part D claims for 92 beneficiaries, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D.

  1. John Armbruster126
  2. Specialty average84

Most prescribed

  1. Amoxicillin67 claims
  2. Cephalexin11 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.

8 general practice dentistry records list a Woodruff practice address

They are 8 of the 125 NPPES records with a Woodruff practice address, and 1,705 general practice dentistry records in South Carolina.

Other general practice dentistry records in South Carolina

  1. Ahmed Abdelhadi, DDSRock Hill, SC1528635638
  2. Ryan Abdullah, DMDSimpsonville, SC1306525308
  3. Katherine Abell, DMDOkatie, SC1508299561
  4. Osama Aboulkhair, DMDColumbia, SC1053916064
  5. Liena Abreus, DDSLittle River, SC1467975136
  6. Steve Ackerman, D.M.D.Greenwood, SC1023070836
  7. William Ackerman, D.M.D.Greenwood, SC1689637910
  8. William Adair, DMDGaffney, SC1568623320
  9. Benjamin Adams, DMDGreenville, SC1427268556
  10. Francis Adams, D.M.D.Greenwood, SC1932345642

Common questions

What is John Armbruster, DDS's NPI number?

John Armbruster, DDS's National Provider Identifier (NPI) is 1336174135, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Armbruster, DDS located?

The NPPES record lists a practice address at 601 E. Georgia Street, Woodruff, SC, 29388. Phone: (864) 476-8315. Providers update this record themselves, so call before visiting.

How can I verify John Armbruster, DDS's license?

NPPES lists South Carolina license number 3509, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does John Armbruster, DDS prescribe under Medicare Part D?

In 2024, John Armbruster, DDS had 126 Medicare Part D claims for 92 beneficiaries; the average among general practice dentistry prescribers was 84. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.