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Registered Dietitians

Registered Dietitians

HealthProviders DB is a national database of registered dietitians. Profiles include, among other things, OIG Exclusions, Medicare Provider Terminations, Medicare Opt-out status, and the License active status. Search by NPI, license number, or provider name. Filter by specialty, credentials, location, and more. Download the complete nationwide or state-specific database of registered dietitians.

Dietary & Nutritional Service Provider Healthcare Taxonomy Code 133V00000X

The following are the total number of registered dietitians nationwide, in your state, and near your location, as of today.

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To filter by state, select it from the list below. Additionally, you can narrow the list by city, among other options, from the Filter Panel. Click the vertical ellipses ⋮ in the upper-right to open the filter panel.

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Medicare Exclusions

The following are the total number of registered dietitians who accept Medicare in your state, who have opted out of Medicare, and who are excluded from participation in Medicare nationwide.

Providers excluded by the OIG or terminated by a State Medicaid Agency cannot participate in federally funded healthcare programs. This includes Medicaid, TRICARE, and the Children’s Health Insurance Program (CHIP). Additionally, the CMS or a State Medicaid Agency can revoke billing privileges, prohibiting the provider from participating in Medicare.

The diagram below shows all the registered dietitians across the country, represented by blue bubbles. The larger the bubble, the greater the concentration of providers in that area. Red bubbles represent Medicare-excluded providers, with the larger bubbles indicating a higher percentage of excluded providers in that region. You can change the bubble size to be based on exclusions from the Size menu.

Download Registered Dietitians Database

Gerontological Nutrition

Healthcare Taxonomy Code 133VN1101X

An individual who is a Specialist in Gerontological Nutrition and provides nutrition care to promote quality of life and optimal health for older adults across the continuum of care, including: acute care, post-acute care, primary care, long-term care, assisted living, home care, palliative care, community-based nutrition, food service, correctional facilities, and government programs.

RDN who works indirectly with gerontological nutrition through roles in management, industry, education, and research.

Metabolic Nutrition

Healthcare Taxonomy Code 133VN1006X

A registered dietitian who achieves specialized competency in metabolic nutrition.

Obesity and Weight Management Nutrition

Healthcare Taxonomy Code 133VN1201X

An individual who is a Board Certified Specialist for Obesity and Weight Management and educates, supports, and advocates for patients and clients to understand and manage their weight and associated risks through the use of nutritional, behavioral health, medical, surgical, pharmacotherapeutic, and exercise and physical activity interventions.

Oncology Nutrition

Healthcare Taxonomy Code 133VN1301X

An individual who is a Board Certified Specialist in Oncology Nutrition and provides direct nutrition care for individuals at risk for or diagnosed with cancer.

RDNs working directly with individuals at risk for, or diagnosed with, any malignancy or pre-malignant condition, in a variety of settings (e.g., hospitals, clinics, cancer centers, hospices, public health), OR indirectly through roles in management, education, industry, and research practice linked specifically to oncology nutrition.

RDN who works indirectly with oncology nutrition through roles in management, education, industry, and research.

Pediatric Critical Care Nutrition

Healthcare Taxonomy Code 133VN1401X

An individual who is a Board Certified Specialist in Pediatric Critical Care Nutrition and applies evidence-based nutrition knowledge in providing medical nutrition therapy for critically ill infants, children, and adolescents.

Additional roles could include coordination, education, quality improvement, or research linked specifically to pediatric critical care nutrition.

Pediatric Nutrition

Healthcare Taxonomy Code 133VN1004X

An individual who is a Board Certified Specialist in Pediatric Nutrition and applies evidence-based nutrition knowledge in providing medical nutrition therapy for pediatric patients.

Specialists work directly with healthy and/or ill children (newborn up to 21 years of age) as well as children with special health care needs in a variety of settings (hospitals, community-based and/or family-centered programs, education programs, home, etc.), OR indirectly through management, care coordination, education, quality improvement, or research practice linked specifically to pediatric nutrition.

Renal Nutrition

Healthcare Taxonomy Code 133VN1005X

An individual who is a Board Certified Specialist in Renal Nutrition and works directly with adult and/or pediatric patients with acute kidney injury, chronic kidney disease (CKD) stages 1-5, or receiving renal replacement therapies (dialysis/transplant) in a variety of settings, OR works indirectly in management, education, or research practice linked specifically to renal nutrition.

The specialist in renal/nephrology nutrition is responsible for nutrition assessment, diagnosis, intervention, monitoring, and evaluation.

Sports Dietetics Nutrition

Healthcare Taxonomy Code 133VN1501X

An individual who is a Board Certified Specialist in Sports Dietetics and applies evidence-based nutrition knowledge in exercise and sports.

RDNs specializing in sports dietetics assess, educate, and counsel athletes and active individuals.

They design, implement, and manage safe and effective nutrition strategies that enhance lifelong health, fitness, and optimal performance.

Frequently Asked Questions

What is a registered dietitian?

Registered dietitians (RDs) are healthcare professionals who specialize in food and nutrition. 

What do registered dietitians do?

They use their expertise to help individuals and communities improve their health and well-being through evidence-based food and nutrition recommendations. 

Registered dietitians play a crucial role in promoting health and preventing disease through evidence-based nutrition interventions. 

They provide personalized support, education, and guidance to help individuals make informed food choices and achieve their nutritional goals. 

Nutritional Assessment: Conduct comprehensive assessments to identify dietary needs, deficiencies, and risks. 

Nutrition Counseling: Provide personalized guidance on dietary changes, meal planning, and food choices to address specific health conditions or goals. 

Medical Nutrition Therapy: Develop and implement therapeutic diets for individuals with medical conditions such as diabetes, heart disease, cancer, and eating disorders. 

Food Service Management: Oversee food service operations in hospitals, schools, and other institutions, ensuring safe, nutritious, and culturally appropriate meals. 

Education and Outreach: Conduct workshops, presentations, and media appearances to promote healthy eating habits and dispel nutrition myths. 

Research and Advocacy: Participate in research studies and advocate for policies that improve food access and nutrition for all. 

What do registered dietitians specialize in?

RDs can specialize in various areas of nutrition, including: 
Weight management
Sports nutrition
Pediatric nutrition
Geriatric nutrition
Oncology nutrition
Renal nutrition
Food allergies and intolerances

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