Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Registered Dietitian or Nutrition Professional

Ruby A. Hayasaka

Sees patients in Honolulu, HI · Hawaii

Summary

Ruby A. Hayasaka (Registered Dietitian or Nutrition Professional) is enrolled with Medicare at 1 practice location in Honolulu, HI. NPI 1831723071. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ruby A. Hayasaka, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Registered Dietitian or Nutrition ProfessionalPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
55Years since medical school (graduated 1971)
FemaleGender (as listed)
Malama Kidney Center, LLC.Group practice

Quick answers

Where does Ruby A. Hayasaka see patients?
Medicare's clinician data lists 1 practice location in Honolulu, HI. Call before your visit to confirm the address.
What is Ruby A. Hayasaka's specialty?
Medicare lists Registered Dietitian or Nutrition Professional as the primary specialty.
Does Ruby A. Hayasaka accept Medicare assignment?
Yes. Medicare's clinician data says Ruby A. Hayasaka accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Ruby A. Hayasaka offer telehealth?
Medicare's clinician data says Ruby A. Hayasaka offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ruby A. Hayasaka?
(808) 953-2502, as listed in official Medicare / NPI Registry data.
What is Ruby A. Hayasaka's NPI number?
1831723071. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ruby A. Hayasaka is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ruby A. Hayasaka as a member of this group (CMS data updated 2026-10-02).

  • Malama Kidney Center, LLC.2 clinicians in the group

Specialties

Find other clinicians: Registered Dietitian or Nutrition Professional, Hawaii →

Other dietitians in Honolulu

Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.

All dietitians in Honolulu →

Clinician information

Graduation year1971
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1831723071
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians