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

Mr. Trey'vonne Marseille Williams-Seymore, RN

Individual provider Registered Nurse · NPI 1417615774

Mr. Trey'vonne Marseille Williams-Seymore, RN is a Registered Nurse in San Leandro, California. Licensed in Florida. Registered with an NPI since 2021.

Licensed in
FL
In the registry since
2021
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

2050 Fairmont Dr
San Leandro, CA 94578-1001
Phone: (425) 240-2943
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence RN9551729 (FL)

Record details

NPI number1417615774
Entity typeIndividual (Type 1)
GenderMale
Credentials RN
Sole proprietorNo
NPI enumeratedDecember 3, 2021
Last updated in NPPESSeptember 11, 2025
Certification dateDecember 3, 2021

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