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Nicholas Leonardo, RD
NPI 1992398556 · Registered Dietitian · San Mateo, CA
Nicholas Leonardo, RD is a Registered Dietitian provider in San Mateo, CA (NPI 1992398556).
Provider details
- NPI number
- 1992398556
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES 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
3050 S Delaware St Ste 130
San Mateo, CA 94403-2394
Phone: (650) 319-8654
Street-level locationGet directions
Mailing address
1028 Lewelling Ct
Alameda, CA 94501-5314
Registry dates
- Enumerated
- 2021-02-15
- Last updated
- 2021-02-15
- Certified
- 2021-02-15
Frequently asked questions
- What is Nicholas Leonardo's NPI number?
- Nicholas Leonardo's National Provider Identifier (NPI) is 1992398556, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Leonardo's specialty?
- Nicholas Leonardo is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Nicholas Leonardo located?
- Nicholas Leonardo's practice location on file with NPPES is 3050 S Delaware St Ste 130, San Mateo, CA 94403-2394.
- What is Nicholas Leonardo's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Leonardo is (650) 319-8654.
- Is Nicholas Leonardo's NPI active?
- Yes — Nicholas Leonardo's NPI (1992398556) is active in the NPPES registry as of the last update on 2021-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.