NPPES file of Aug 9, 2026

Michael D. Riordan, DMD

Orthodontics and Dentofacial Orthopedics Dentistry · Fort Mill, SC

Michael D. Riordan, DMD is an orthodontics and dentofacial orthopedics dentistry with a practice address in Fort Mill, South Carolina, and NPI 1093880676, issued on Nov 21, 2006. Check the license (South Carolina 3554, 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
1093880676
Name
Michael D. Riordan
Credential
DMD
Primary taxonomy
Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
License number
3554 SC
Self-reported in NPPES; status is on the state search
Practice location
1741 Gold Hill RD, Fort Mill, SC 29708
Phone
(803) 802-2580
Enumerated
Nov 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(803) 802-3075
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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8 nearest orthodontics and dentofacial orthopedics dentistry records → All 154 in South Carolina → Look up another NPI →

Also registered at 1741 Gold Hill RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Priya Chougule, DMDDentist1619175957
  2. James Finley, D.D.S.General Practice Dentistry1871792267
  3. Michael Sloan, D.M.D.General Practice Dentistry1942409347

Verify Michael D. Riordan 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 3554    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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Industry payments in 2024: $7.00

2 payments; by number, the most common kind was gift; the largest payer was American Orthodontics Corporation. The 7,622 providers of this specialty with any payment received $1,641.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Riordan$7.00
  2. Specialty average$1,641.73

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

Michael D. Riordan among 154 orthodontics and dentofacial orthopedics dentistry records in South Carolina

Michael D. Riordan, DMD is one of 154 orthodontics and dentofacial orthopedics dentistry records with a practice address in South Carolina. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 73% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthodontics and Dentofacial Orthopedics Dentistry providers in South Carolina

There are 154 orthodontics and dentofacial orthopedics dentistry records in South Carolina.

All 154 in South Carolina → Every provider in Fort Mill → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →

The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes

  1. Jeffrey Mokris, D.M.D., M.S.Fort Mill, SC 297081568625515
  2. Christina Quarterman, DDSIndian Land, SC 297071578956991
  3. Laura Vaccariello, D.M.D.Fort Mill, SC 297151083053060
  4. Wayne BauknightLancaster, SC 297201730249244
  5. Jennifer Garza, DDSLancaster, SC 297201851557680
  6. John Murdock, D.D.S., M.S.Lancaster, SC 297201235342668
  7. Lance Fogle, DMDTaylors, SC 296871689891277
  8. Jeffery Summers, D.M.D.Taylors, SC 296871154534030

Common questions

What is Michael D. Riordan, DMD's NPI number?

Michael D. Riordan, DMD's National Provider Identifier (NPI) is 1093880676, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael D. Riordan, DMD located?

The NPPES record lists a practice address at 1741 Gold Hill RD, Fort Mill, SC, 29708. Phone: (803) 802-2580. Providers update this record themselves, so call before visiting.

How can I verify Michael D. Riordan, DMD's license?

NPPES lists South Carolina license number 3554, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.