Thomas Duffy
NPI 1639572977 · Dentist · Shelton, WA
Thomas Duffy is a Dentist provider in Shelton, WA (NPI 1639572977).
Provider details
- NPI number
- 1639572977
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Male
- Sole proprietor
- No
- License
- DE60477489 (WA)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Amoxicillin | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-10-01
- Last updated
- 2014-10-01
Frequently asked questions
- What is Thomas Duffy's NPI number?
- Thomas Duffy's National Provider Identifier (NPI) is 1639572977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Duffy's specialty?
- Thomas Duffy is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Thomas Duffy located?
- Thomas Duffy's practice location on file with NPPES is 717 W. Railroad Ave., Shelton, WA 98584.
- What is Thomas Duffy's phone number?
- The practice phone number listed in the NPPES registry for Thomas Duffy is (360) 426-1664.
- Is Thomas Duffy's NPI active?
- Yes — Thomas Duffy's NPI (1639572977) is active in the NPPES registry as of the last update on 2014-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.