DAYONE CENTERS INC
NPI 1366659799
Registered Nurse - Lactation Consultant in San Francisco, CA

Active since May 16, 2007
3490 CALIFORNIA ST, SUITE 203, SAN FRANCISCO, CA 94118(415) 440-3291 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dayone Centers Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAYONE CENTERS INC (NPI 1366659799) is a healthcare organization registered as a lactation consultant in San Francisco, California and active in the NPI registry since May 2007. The organization lists Nancy B Held, Co-founder, Vp Clinical & Education, as its authorized official.

NPPES Registry Identity

NPI1366659799
Entity TypeOrganization
Primary Taxonomy163WL0100X
Legal Business NameDAYONE CENTERS INC
Location Address3490 CALIFORNIA ST, SUITE 203San Francisco, CA 94118-1891
Mailing Address177 Post St, Suite 900San Francisco, CA 94108-4705 · (415) 421-5300
Organization SubpartNo
Authorized OfficialNancy B HeldCo-founder, Vp Clinical & Education · (415) 421-5300
Enumeration DateMay 16, 2007
Last NPPES UpdateAugust 22, 2020
NPI 1366659799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRegistered Nurse · Lactation ConsultantNursing Service Providers
Taxonomy Code163WL0100X
License Licensed in CA · RN393309
3490 CALIFORNIA ST, San Francisco, CA 94118

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
3490 CALIFORNIA ST
SAN FRANCISCO, CA 94118
Pediatrics
3490 CALIFORNIA ST, SUITE 200
SAN FRANCISCO, CA 94118
Family Medicine
3490 CALIFORNIA ST, SUITE 200
SAN FRANCISCO, CA 94118
Registered Nurse (Lactation Consultant)
3490 CALIFORNIA ST
SAN FRANCISCO, CA 94118
Internal Medicine (Cardiovascular Disease)
3490 CALIFORNIA ST, SUITE 200
SAN FRANCISCO, CA 94118
Registered Nurse (Ambulatory Care)
3490 CALIFORNIA ST
SAN FRANCISCO, CA 94118
Registered Nurse (Lactation Consultant)
3490 CALIFORNIA ST, SUITE 203
SAN FRANCISCO, CA 94118
Family Medicine
3490 CALIFORNIA ST, STE 200
SAN FRANCISCO, CA 94118

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dayone Centers Inc's NPI number?

The NPI number for Dayone Centers Inc is 1366659799. It was assigned to this organization in the NPPES registry on May 16, 2007.

Where is Dayone Centers Inc located?

Dayone Centers Inc is located at 3490 California St Suite 203, San Francisco, CA 94118. The listed phone number is (415) 440-3291.

What is Dayone Centers Inc's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Lactation Consultant, with taxonomy code 163WL0100X.

When was this NPI record last updated?

The NPPES record for Dayone Centers Inc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.