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

Dayone Centers Inc

Organization Lactation Consultant (Registered Nurse) · NPI 1366659799

Dayone Centers Inc is a Lactation Consultant (Registered Nurse) in San Francisco, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

3490 California St Ste 203
San Francisco, CA 94118-1891
Phone: (415) 440-3291
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Lactation Consultant (Registered Nurse) (primary) Taxonomy 163WL0100X · Licence RN393309 (CA)

Record details

NPI number1366659799
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Nancy Held — Co-Founder, Vp Clinical & Education · (415) 421-5300
NPI enumeratedMay 16, 2007
Last updated in NPPESAugust 22, 2020
Mailing address177 Post St, Suite 900, San Francisco, CA 94108-4705

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