Registered Dietitian
Healthcare providers specializing in registered dietitian
Below are providers registered under the 133V00000X taxonomy in the official NPI Registry.
📊 Healthcare Market Snapshot for Registered Dietitian
Top States for Registered Dietitian
US states with the highest concentration of registered dietitian providers
Top Cities for Registered Dietitian
US cities with the highest concentration of registered dietitian providers
| Rank | City | State | Provider Count |
|---|---|---|---|
| #1 | Chicago | IL | 1,011 |
| #2 | Austin | TX | 1,009 |
| #3 | New York | NY | 992 |
| #4 | Seattle | WA | 630 |
| #5 | Houston | TX | 571 |
| #6 | San Diego | CA | 511 |
| #7 | Los Angeles | CA | 488 |
| #8 | Brooklyn | NY | 476 |
| #9 | San Francisco | CA | 442 |
| #10 | Phoenix | AZ | 431 |
Longest-Registered Registered Dietitian Providers
Providers with the most years of registration history as registered dietitian specialists
Janet Vecchione, RDN, LDN, CDCES
Susan Langevin, MS, RD, CDE, LDN
Karna Peterson
Evelyn King, R.D
Marilyn Mills, RD, CDE
Dena Shields, RD
Diane Hannon, R.D
Victoria Alwin, R.D
Patricia Severson-wager, RD, CDN, CDE
Michelle Satchfield, R.D
Recently Registered Registered Dietitian Providers
Newly registered healthcare providers specializing in registered dietitian
Laura Havard, RDN
Noelle Mauro
Maria Vilsack, RD, RDN
Iraides Campuzano Mondragon, RD
Zoe Habershaw, MS, RDN
Kandi Perazzo, RD, LDN
Anna Ogilvie, PHD, RD
Cassandra Callard, RD, LDN
Maria Amato, MS, RD
Vernice Rentas Teissonniere
Related Specialties in Dietary & Nutritional
Other healthcare specialties related to registered dietitian
About Registered Dietitian Providers
A registered dietitian (RD) or registered dietitian nutritionist (RDN) is a food and nutrition expert who designs medical nutrition therapy (MNT) programs for patients. They treat conditions like diabetes, obesity, kidney disease, and eating disorders, helping patients manage their health through personalized nutritional plans. RDs hold a bachelor's or master's degree in dietetics, complete an accredited supervised internship, and pass the Commission on Dietetic Registration (CDR) exam. They work in hospitals, clinics, private practices, and community programs, utilizing evidence-based science to improve patient health.
Locating a registered dietitian's NPI number is necessary for billing medical nutrition therapy services to health insurance plans, Medicare, and Medicaid. Many insurance policies cover dietary counseling, but claims must include the dietitian's valid NPI and taxonomy code to be processed. The NPI registry verifies the dietitian's registration and active license. Checking the NPI database ensures that nutritional counseling services are billed under the correct provider, avoiding denied claims and facilitating proper patient reimbursement.
Frequently Asked Questions about Registered Dietitian
How many Registered Dietitian providers are registered in the US?
There are currently 72,007 registered registered dietitian providers in the United States, according to the official CMS NPI registry database.
Which state has the most Registered Dietitian providers?
California has the highest concentration of registered dietitian specialists, with 7,315 registered providers.
What is the oldest registered Registered Dietitian provider?
The oldest registered registered dietitian provider in the database is Janet Vecchione, RDN, LDN, CDCES, who registered on 05/23/2005 with NPI number 1891798906.
How do I find a Registered Dietitian near me?
You can find registered dietitian providers near you by browsing our directory by state or city, or by using the search bar at the top of the page to filter by name and state.
What credentials do Registered Dietitian providers typically have?
A registered dietitian (RD) or registered dietitian nutritionist (RDN) is a food and nutrition expert who designs medical nutrition therapy (MNT) programs for patients. They treat conditions like diabetes, obesity, kidney disease, and eating disorders, helping patients manage their health through personalized nutritional plans. RDs hold a bachelor's or master's degree in dietetics, complete an accredited supervised internship, and pass the Commission on Dietetic Registration (CDR) exam. They work in hospitals, clinics, private practices, and community programs, utilizing evidence-based science to improve patient health.
How do I verify a Registered Dietitian's NPI number?
You can verify any Registered Dietitian's NPI number by searching on NPILookup using their name or NPI number. All data is sourced directly from the official CMS NPPES registry.
What is the taxonomy code for Registered Dietitian?
The primary taxonomy code for Registered Dietitian is 133V00000X.
Can Registered Dietitian providers bill insurance?
Yes, most Registered Dietitian providers can bill health insurance. Their National Provider Identifier (NPI) number is required to process claims, verify network status, and submit billing details to commercial insurance networks, Medicare, or Medicaid.