Registry data as of Aug 27, 2026

Ethelyn Thomason, DMD

General Practice Dentistry · Boulder, CO

Ethelyn Thomason, DMD is a general practice dentistry with a practice address in Boulder, Colorado, and NPI 1871585729, issued on Aug 17, 2005. Check the license with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1871585729
Name
Ethelyn Thomason
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
Practice location
4155 Darley Ave, Boulder, CO 80305
Phone
(303) 499-9700
Enumerated
Aug 17, 2005
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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Also registered at 4155 Darley Ave

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

  1. Miroslawa Hari, R.D.H.Dental Hygienist1962784751
  2. Joy Hicks, DMDGeneral Practice Dentistry1730490897
  3. Eve Luong, RDHDental Hygienist1821468877
  4. Lonnie Sibley, DDSOral and Maxillofacial Surgery (Dentist)1033287115

Verify Ethelyn Thomason in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this professionCheck 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 Colorado 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.

94 general practice dentistry records list a Boulder practice address

They are 94 of the 5,635 NPPES records with a Boulder practice address, and 2,463 general practice dentistry records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other general practice dentistry records in Colorado

  1. Kathryn Aasen, D.D.S.Usaf Academy, CO1508816109
  2. Danny Abboud, DDSBoulder, CO1285811679
  3. Andrew Abdelnour, DMDBroomfield, CO1689823346
  4. Sally Abouassaf, DDSParker, CO1659677805
  5. Alexander Acevedo, D.D.S.Westminster, CO1013131093
  6. Mayya Acherkan, D.D.S.Greenwood Village, CO1720124241
  7. Jess Adams, DDSColorado Springs, CO1033315627
  8. Larry Adams, DDSColorado Springs, CO1376545046
  9. Nana Adu AdjeiDenver, CO1750146668
  10. Michael Adler, DDSBoulder, CO1447351895

Common questions

What is Ethelyn Thomason, DMD's NPI number?

Ethelyn Thomason, DMD's National Provider Identifier (NPI) is 1871585729, issued on Aug 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ethelyn Thomason, DMD located?

The NPPES record lists a practice address at 4155 Darley Ave, Boulder, CO, 80305. Phone: (303) 499-9700. Providers update this record themselves, so call before visiting.

How can I verify Ethelyn Thomason, DMD's license?

Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.