Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1871585729 Individual Practitioner Female Practitioner

Dr. Ethelyn Gail Thomason , DMD

Dentist - General Practice • Boulder, CO

Professional Overview & Biography Verified Profile Summary

Dr. Ethelyn Thomason, DMD is a registered healthcare professional specializing in Dentist - General Practice in Boulder, CO. Practice services are available at 4155 DARLEY AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4155 Darley Ave
Ste F

Boulder, CO 803056536

Telephone 3034999700
Fax 3034992528
Associated Practice Facility / Clinic
🏢 Perfect Teeth Boulder P.c. Facility NPI 1184744096

Specialty Benchmarks & Practice Insights

Comparative analytics for Dentist - General Practice in Boulder, CO

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 7.0 Yrs
State Avg: 18.5 Yrs
Regional Practice Density
101 Specialists

Practicing in Boulder, CO (2613 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Dentist - General Practice Primary Specialty

NUCC Taxonomy Code: 1223G0001X

State License CO 8399

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

2 Associated Practitioners
Kimberly Norquist

Dental Hygienist

NPI 1548629439
Dr. Elizabeth Lukens , DDS, MS

Dentist - Orthodontics and Dentofacial Orthopedics

NPI 1851120141

Doctor of Dental Surgery, Master of Science

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 4155 DARLEY AVE, STE F, BOULDER, CO 803056536 (Tel: 3034999700)

📍
Updated Business Mailing Address July 08, 2007

Registered at 4155 DARLEY AVE, STE F, BOULDER, CO 803056536 (Tel: 3034999700)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as ETHELYN THOMASON, DMD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Dentist (License #8399 in CO)

🟢
Initial NPI Registration & Enumeration August 17, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1871585729
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 17, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

4155 Darley Ave, Ste F

Boulder, CO 803056536

Phone: 3034999700

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.