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Edit this profileAt a glance
- 1357 Kapiolani Blvd Ste 1460, Honolulu, HI 96814
About Ruby Hayasaka
Based in Honolulu, HI, Ruby A. Hayasaka, RDN is listed in the NPI registry under registered dietitian or nutrition professional. Ruby is also listed as specializing in registered dietitian / nutritionist. Medicare claims data shows Ruby provided 259 services to 59 patients. The services billed most often include therapy procedure reassessment for nutrition management, each 15 minutes and therapy procedure for nutrition management, each 15 minutes. NPI 1831723071 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (808) 942-1852
- Email not available
Practice Locations
1357 KAPIOLANI BLVD STE 1460
Honolulu, HI 96814
Conditions Supported and Services
Within Registered Dietitian/Nutritionist generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Allergies & Immune
Behavioral nutrition
- Orthorexia
Bone Health
Chronic conditions
- Cystic Fibrosis Malabsorption
Digestive Health
- Acid reflux
- Chronic Bloating and Gas
- Chronic pancreatitis
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Eosinophilic esophagitis
- Gallstones
- Gastroparesis
- Inflammatory bowel disease
- Small intestinal bacterial overgrowth
Digestive health
- Candida Overgrowth
- Chronic diarrhea
- Fructose Malabsorption
- Gut Health Issues
- Lactose intolerance
- Post-Cholecystectomy Digestion Issues
- Swallowing difficulties
General nutrition
- Chronic fatigue
- Difficulty Gaining Weight
- Unexplained Weight Loss
General Nutrition
Heart & Circulation
Hormonal & Women's Health
- Menopause Weight Gain
- PCOS
- Thyroid problems
Immune & Allergy
Joint & Metabolic Health
Kidney Health
Kidney health
Liver & Metabolic Health
Liver health
- Cirrhosis of the Liver
Mental & Behavioral Health
Metabolic health
Metabolic Health
Neurological
- Food-Triggered Migraines
Nutritional Deficiencies
Oncology
Pediatric Health
- Picky Eating and Food Aversion
- Poor Infant Weight Gain
Pregnancy & Women's Health
Sports & Fitness
- Athlete Low Energy and Overtraining
Surgical Recovery
- Post-Bariatric Surgery Complications
Women's health
- Endometriosis Belly and Inflammation
Procedures & services
Most searched procedures
- Diabetes education
- Gut health coaching
- Meal planning
- Medical nutrition therapy
- Weight loss nutrition
Behavioral Counseling
- Eating Disorder Nutrition Therapy
- Intuitive Eating Coaching
Behavioral nutrition
- Mindful Eating Training
Clinical Nutrition
- Acid Reflux Diet Protocol
- Heart-Healthy DASH Diet Coaching
- IV Nutrition Support
- Kidney Disease Diet Planning
- Oncology Nutrition Consultation
- Senior Nutrition Assessment
- Tube Feeding Management
Coaching & Education
- Carb Counting Training
- Nutrition Fact Label Reading Training
Consultations
- Virtual Nutrition Counseling
Diet protocols
- Anti-Candida Diet Protocol
- Low-Oxalate Diet Coaching
- Low-Purine Diet Consultation
Diet Protocols
- Anti-Inflammatory Diet Coaching
- Autoimmune Protocol Coaching
- Elimination Diet Program
- Gluten-Free Diet Transition Guidance
- Histamine Elimination Diet Coaching
- Ketogenic Diet Coaching
- Low-FODMAP Diet Consultation
- Plant-Based and Vegan Diet Coaching
- SIBO Diet Coaching
Heart health
- Cholesterol-Lowering Portfolio Diet Coaching
Hormonal & Women's Health
- PCOS Diet Consultation
Lifestyle Coaching
- Guided Grocery Store Tour
- Kitchen and Pantry Makeover
Maternal & Infant
- Gestational Diabetes Diet Coaching
- Postpartum and Breastfeeding Nutrition Consultation
- Pregnancy Nutrition Consultation
Medical diet therapy
- Dialysis Nutrition Coaching
- Post-Gallbladder Removal Diet Plan
- Swallowing Problem Pureed Diet Planning
Pediatric nutrition
- Pediatric Dairy-Free Weaning Guidance
Pediatric Services
- Baby-Led Weaning Consultation
- Formula and Breastmilk Fortification Guidance
- Pediatric Picky Eating Therapy
Sports & Fitness
- Muscle Building Macro Planning
- Sports Nutrition Coaching
Surgical Consultations
- Bariatric Surgery Nutrition Clearance
Testing & Assessment
- Body Composition Analysis
- Continuous Glucose Monitor Coaching
- Diet Diary Analysis
- Dietary Supplement Review
- DNA Diet and Nutrigenomics Testing
- Food Sensitivity Testing
- Gut Microbiome Stool Test Review
- Nutrient Deficiency Testing and Review
- Resting Metabolic Rate Test
Weight & Lifestyle
- Intermittent Fasting Coaching
- Weight Gain Meal Planning
Women's health
- Hormone Balancing Diet Coaching
Procedures Most Often Billed to Medicare
259 services · 59 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure reassessment for nutrition management, each 15 minutes | Treatment | 97803 |
176 | More often than most peers in Registered Dietitian or… |
| Therapy procedure for nutrition management, each 15 minutes | Treatment | 97802 |
83 | As often as other peers in Registered Dietitian or… |
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 — 12 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 4
Providers in HI who bill this service to Medicare most often.
Common questions
What is Ruby A. Hayasaka's specialty?
Ruby A. Hayasaka is a registered dietitian or nutrition professional in Honolulu, HI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Ruby A. Hayasaka?
Ruby A. 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 Ruby A. Hayasaka?
The number on file is (808) 942-1852. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Ruby A. Hayasaka?
Ruby A. 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 Ruby A. Hayasaka's education?
Ruby A. Hayasaka attended Other, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Ruby A. Hayasaka have?
Ruby A. Hayasaka has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
What is Ruby A. Hayasaka known for?
According to Medicare billing data, Ruby A. 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 Ruby A. Hayasaka's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Ruby A. Hayasaka. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.