What is Ivy Warounthorn's NPI number?

Ivy Warounthorn's National Provider Identifier (NPI) is 1043193261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ivy Warounthorn's specialty?

Ivy Warounthorn is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Ivy Warounthorn located?

Ivy Warounthorn's practice location on file with NPPES is 1012 W Citrus St, Colton, CA 92324-6809.

What is Ivy Warounthorn's phone number?

The practice phone number listed in the NPPES registry for Ivy Warounthorn is (909) 763-9763.

Is Ivy Warounthorn's NPI active?

Yes — Ivy Warounthorn's NPI (1043193261) is active in the NPPES registry as of the last update on 2025-07-26.

IndividualActive

Ivy Warounthorn, MPH, RDN

NPI 1043193261 · Registered Dietitian · Colton, CA

Ivy Warounthorn, MPH, RDN is a Registered Dietitian provider in Colton, CA (NPI 1043193261).

Provider details

NPI number: 1043193261
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: MPH, RDN
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Registered DietitianPrimary133V00000X
Dietary & Nutritional Service Providers

Profile Score

Basic profile(48/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1012 W Citrus St

Colton, CA 92324-6809

Phone: (909) 763-9763

Street-level locationGet directions

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Mailing address