Physician Profile
Unclaimed ProfileAbout HAYASAKA
Based in Honolulu, HI, Ruby Ann Hayasaka, RDN is listed in the NPI registry under registered dietitian or nutrition professional. Ruby is also listed as specialising in registered dietitian / nutritionist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Hayasaka's specialty?
Dr. Hayasaka is a registered dietitian or nutrition professional in Honolulu, HI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “REGISTERED DIETITIAN OR NUTRITION PROFESSIONAL”.
NPI registry
Where can I find Dr. Hayasaka?
Dr. Hayasaka is listed at 1357 KAPIOLANI BLVD STE 1460, Honolulu, HI 96814. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hayasaka?
The number on file is (808) 942-1852. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hayasaka?
Dr. Hayasaka's National Provider Identifier is 1831723071. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Hayasaka's medical education?
Dr. Hayasaka attended Other, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hayasaka have?
Dr. Hayasaka has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Hayasaka known for?
According to Medicare billing data, Dr. Hayasaka provides treatments such as therapy procedure reassessment for nutrition management, each 15 minutes and therapy procedure for nutrition management, each 15 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hayasaka's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hayasaka. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (808) 942-1852
- Email not available
Practice Locations
1357 KAPIOLANI BLVD STE 1460
Honolulu, HI 96814
Procedures Most Often Billed to Medicare
259 services · 59 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Therapy procedure reassessment for nutrition management, each 15 minutes | Treatment | 97803 |
176 |
| Therapy procedure for nutrition management, each 15 minutes | Treatment | 97802 |
83 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other registered dietitian or nutrition professionals in Honolulu 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 14 related providers in 2 groups
Class of 1971 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Therapy procedure reassessment for nutrition management, each 15 minutes 6
Providers in HI who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.