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

Kristin Haley-Castillo Williams, RN

Individual provider Registered Nurse · NPI 1255091377

Kristin Haley-Castillo Williams, RN is a Registered Nurse in San Francisco, California. Licensed in California. Registered with an NPI since 2021.

Licensed in
CA
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

2681 28th Ave
San Francisco, CA 94116-2912
Phone: (415) 681-3211
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 95022522 (CA)

Record details

NPI number1255091377
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedDecember 30, 2021
Last updated in NPPESJune 9, 2022
Certification dateJune 9, 2022

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