NPPES file of Aug 9, 2026

Michael C. Armstrong, D.D.S.

Dentist · Greenville, SC

Michael C. Armstrong, D.D.S. is a dentist with a practice address in Greenville, South Carolina, and NPI 1184781007, issued on Jan 2, 2007. Check the license (South Carolina 9303, 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
1184781007
Name
Michael C. Armstrong
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
9303 SC
Self-reported in NPPES; status is on the state search
Practice location
40 Pointe Circle, Greenville, SC 29615
Phone
(864) 233-4166
Enumerated
Jan 2, 2007
Record last updated
Oct 4, 2023
Fax
(864) 242-3041
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 Michael C. Armstrong 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 9303
    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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3.0 times the Medicare Part D claims of the average dentist in 2024

259 Medicare Part D claims for 112 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Michael Armstrong259
  2. Specialty average86

Most prescribed

  1. Amoxicillin122 claims
  2. Ibuprofen17 claims
  3. Azithromycin13 claims
  4. Carvedilol13 claims
  5. Methylprednisolone12 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.

Industry payments in 2024: $66.14

2 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Armstrong$66.14
  2. Specialty average$540.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Michael C. Armstrong among 1,124 dentist records in South Carolina

Michael C. Armstrong, D.D.S. is one of 1,124 dentist records with a practice address in South Carolina. 66% 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 21% of them.

  • NPI issued2007 · 21% of these records are older, 62% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in South Carolina

There are 1,124 dentist records in South Carolina.

The 8 dentist records with the nearest ZIP codes

  1. Patrick Breaux, DDS,PAGreenville, SC 296151124266853
  2. Hubert Burton, DMDGreenville, SC 296151689894172
  3. Earl Cherry, DMDGreenville, SC 296151801954367
  4. Thomas Clark, DDSGreenville, SC 296151558675249
  5. Jill Colson, DMDGreenville, SC 296151306055405
  6. Clarence Hamrick, DMDGreenville, SC 296151033251426
  7. Ernest Howard, DMDGreenville, SC 296151386704153
  8. Leor Lindner, D.M.D.Greenville, SC 296151033279336

Common questions

What is Michael C. Armstrong, D.D.S.'s NPI number?

Michael C. Armstrong, D.D.S.'s National Provider Identifier (NPI) is 1184781007, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael C. Armstrong, D.D.S. located?

The NPPES record lists a practice address at 40 Pointe Circle, Greenville, SC, 29615. Phone: (864) 233-4166. Providers update this record themselves, so call before visiting.

How can I verify Michael C. Armstrong, D.D.S.'s license?

NPPES lists South Carolina license number 9303, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Michael C. Armstrong, D.D.S. prescribe under Medicare Part D?

In 2024, Michael C. Armstrong, D.D.S. had 259 Medicare Part D claims for 112 beneficiaries; the average among dentist prescribers was 86. 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.