NPPES file of Aug 9, 2026

Thomas Lynn Alexander, DDS

Dentist · Irvine, CA

Thomas Lynn Alexander, DDS is a dentist with a practice address in Irvine, California, and NPI 1962649723, issued on Jan 15, 2009. Check the license (California 23405, as entered in NPPES) with the California 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
1962649723
Name
Thomas Lynn Alexander
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
23405 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Osborn St Ste 140, Irvine, CA 92604
Phone
(949) 857-2004
Enumerated
Jan 15, 2009
Record last updated
Jun 2, 2022
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.
Download card Updates feed

Also registered at 2 Osborn St Ste 140

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

  1. Craig Ota, D.D.SGeneral Practice Dentistry1154534535
  2. Melissa Ota, DDSGeneral Practice Dentistry1821498940

Verify Thomas Lynn Alexander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 23405
    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 California 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $22.73

1 payment: food and beverage; the largest payer was Voco America 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. Thomas Alexander$22.73
  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.

Thomas Lynn Alexander among 14,729 dentist records in California

Thomas Lynn Alexander, DDS is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 48% of them.

  • NPI issued2009 · 48% of these records are older, 49% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2022 · 73% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

153 dentist records list a practice address in Irvine

They are 153 of the 7,778 NPPES records with a practice address in Irvine, and 14,729 dentist records in California.

The 8 dentist records with the nearest ZIP codes

  1. Manal Aziz, DDSIrvine, CA 926041972664985
  2. David Dudley, DDSIrvine, CA 926041578503637
  3. Jeevan Ghatnekar, DDSIrvine, CA 926041437161551
  4. Bokyung Han, DDSIrvine, CA 926041659417400
  5. William Hsiang, DMDIrving, CA 926041770694366
  6. Elaine Kim, D.D.S.Irvine, CA 926041194821827
  7. Jeffrey Kim, DDSIrvine, CA 926041033272927
  8. Sundi Lin, DDSIrvine, CA 926041629136668

Common questions

What is Thomas Lynn Alexander, DDS's NPI number?

Thomas Lynn Alexander, DDS's National Provider Identifier (NPI) is 1962649723, issued on Jan 15, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Lynn Alexander, DDS located?

The NPPES record lists a practice address at 2 Osborn St Ste 140, Irvine, CA, 92604. Phone: (949) 857-2004. Providers update this record themselves, so call before visiting.

How can I verify Thomas Lynn Alexander, DDS's license?

NPPES lists California license number 23405, as entered by the provider. Search the California 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.

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.