Doctor profile · Federal record
Dr. Ruby Hayasaka, RDN
Registered Dietitian (CMS: Registered Dietitian or Nutrition Professional) · Honolulu, HI
- NPI 1831723071
- Accepts Medicare
- 55 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1357 Kapiolani Blvd Ste 1460
Honolulu, HI 968144509
(808) 942-1852 - Mailing address
-
41-1694 Kalanianaole Hwy
Waimanalo, HI 967951142
Credentials & registration
- NPI registered
- February 2020 — 6 yrs on file
- Year of graduation
- 1971 — 55 yrs since
- Specialty taxonomy
- 133V00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831723071. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
230
Distinct HCPCS
2
Medicare allowed
$6,656
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
97803 |
Therapy procedure reassessment for nutrition management, each 15 minutes | 180 | 38 | $28 | |
97802 |
Therapy procedure for nutrition management, each 15 minutes | 50 | 13 | $33 |
In context: peer comparison
Among 3 peers in Honolulu Registered Dietitian, average services per provider: 153. This provider delivers 1.5× the peer median.Frequently asked questions
What is Dr. Ruby Hayasaka's medical specialty?
Dr. Ruby Hayasaka practices Registered Dietitian in Honolulu, HI.
Where does Dr. Ruby Hayasaka practice?
Dr. Ruby Hayasaka practices at 1357 Kapiolani Blvd Ste 1460, Honolulu, HI 968144509. Office phone: 8089421852.
What is Dr. Ruby Hayasaka's NPI?
Dr. Ruby Hayasaka's National Provider Identifier (NPI) is 1831723071, issued by NPPES.
Does Dr. Ruby Hayasaka accept Medicare assignment?
Yes. Dr. Ruby Hayasaka accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ruby Hayasaka commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure reassessment for nutrition management (HCPCS 97803); Therapy procedure for nutrition management (HCPCS 97802). Source: CMS Medicare Physician & Other Practitioners file.