Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ASHLEY MARY SEIS-YANO RDN
NPI 1174428627
Dietitian, Registered in Napa, CA

Active since October 13, 2026
1443 MAIN ST STE 130B, NAPA, CA 94559(707) 200-1178 Get Directions Write a Review

NPPES record added: October 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ashley Mary Seis-yano Rdn NPPES

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

ASHLEY MARY SEIS-YANO RDN (NPI 1174428627) is an individual dietitian, registered in Napa, California and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1174428627
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameASHLEY MARY SEIS-YANOCredential: RDN
Location Address1443 MAIN ST STE 130BNapa, CA 94559-1939
Mailing Address1443 Main St Ste 130bNapa, CA 94559-1939 · (707) 200-1178
Sole ProprietorNo
Enumeration DateOctober 13, 2026
NPPES CertifiedOctober 13, 2026
✔ NPI 1174428627 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
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.
1443 MAIN ST STE 130B, Napa, CA 94559

Other Providers at the Same Location NPPES 6

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

Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559
Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559
Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559
Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559
Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559
Dietitian, Registered
1443 MAIN ST STE 130B
NAPA, CA 94559

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 Ashley Seis-yano's NPI number?

The NPI number for Ashley Seis-yano is 1174428627. It was assigned to this individual provider in the NPPES registry on October 13, 2026.

Where is Ashley Seis-yano located?

Ashley Seis-yano practices at 1443 Main St Ste 130B, Napa, CA 94559. The listed phone number is (707) 200-1178.

What is Ashley Seis-yano'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 Ashley Seis-yano was last updated on October 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.