Duncan Williams, DO
NPI 1225730781 · Emergency Medicine Physician · Las Vegas, NV
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duncan Williams, DO is a Emergency Medicine Physician provider in Las Vegas, NV (NPI 1225730781).
Provider details
- NPI number
- 1225730781
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 012254 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-20
- Last updated
- 2026-04-30
- Certified
- 2026-04-30
Frequently asked questions
- What is Duncan Williams's NPI number?
- Duncan Williams's National Provider Identifier (NPI) is 1225730781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duncan Williams's specialty?
- Duncan Williams is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Duncan Williams located?
- Duncan Williams's practice location on file with NPPES is 2880 N Tenaya Way, Las Vegas, NV 89128-0618.
- What is Duncan Williams's phone number?
- The practice phone number listed in the NPPES registry for Duncan Williams is (702) 962-9551.
- Does Duncan Williams accept Medicare?
- Duncan Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duncan Williams's NPI active?
- Yes — Duncan Williams's NPI (1225730781) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.