Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Duncan James Williams, DO

Individual provider Emergency Medicine Physician · NPI 1225730781

Duncan James Williams, DO is an Emergency Medicine in Las Vegas, Nevada. Qualified in 2023, 3 years ago. Practices as a sole proprietor. Licensed in Arizona and Nevada.

Years since qualifying
3
Licensed in
AZ, NV
In the registry since
2023
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3186 S Maryland Pkwy
Las Vegas, NV 89109-2306
Phone: (702) 961-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DO4122 (NV)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 012254 (AZ)

Record details

NPI number1225730781
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 20, 2023
Last updated in NPPESJuly 16, 2026
Certification dateJuly 16, 2026
Mailing address4637 Chabot Dr Ste 104, Pleasanton, CA 94588-2749

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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