HAYLEY SEGAL ROSENFIELD RDN, LDN
NPI 1124404678
Dietitian, Registered in San Francisco, CA

Active since August 07, 2015
425 CALIFORNIA ST STE 1400, SAN FRANCISCO, CA 94104(786) 489-9079 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Hayley Segal Rosenfield Rdn, Ldn NPPES

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

HAYLEY SEGAL ROSENFIELD RDN, LDN (NPI 1124404678) is an individual dietitian, registered in San Francisco, California, licensed in Minnesota (4562) and active in the NPI registry since August 2015.

NPPES Registry Identity

NPI1124404678
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameHAYLEY SEGAL ROSENFIELDCredential: RDN, LDN
Location Address425 CALIFORNIA ST STE 1400San Francisco, CA 94104-2116
Mailing Address425 California St Ste 1400San Francisco, CA 94104-2116 · (786) 489-9079
Sole ProprietorNo
Enumeration DateAugust 7, 2015
Last NPPES UpdateJanuary 26, 2026
NPPES CertifiedJanuary 26, 2026
NPI 1124404678 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License Licensed in MN · 4562
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
425 CALIFORNIA ST STE 1400, San Francisco, CA 94104

Other Providers at the Same Location NPPES 20

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

Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Nurse Practitioner
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104
Dietitian, Registered
425 CALIFORNIA ST STE 1400
SAN FRANCISCO, CA 94104

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 Hayley Rosenfield's NPI number?

The NPI number for Hayley Rosenfield is 1124404678. It was assigned to this individual provider in the NPPES registry on August 7, 2015.

Where is Hayley Rosenfield located?

Hayley Rosenfield practices at 425 California St Ste 1400, San Francisco, CA 94104. The listed phone number is (786) 489-9079.

What is Hayley Rosenfield's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

When was this NPI record last updated?

The NPPES record for Hayley Rosenfield was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.