IndividualActive
Mary Nieraeth, RD
NPI 1881045870 · Registered Dietitian · Downey, CA
Mary Nieraeth, RD is a Registered Dietitian provider in Downey, CA (NPI 1881045870).
Provider details
- NPI number
- 1881045870
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- No
- License
- 535763 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(71/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% 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
8311 Florence Ave
Downey, CA 90240-3928
Phone: (562) 943-4911
Street-level locationGet directions
Mailing address
5600 Wagner Ave
Lakewood, CA 90712-1467
Registry dates
- Enumerated
- 2016-06-30
- Last updated
- 2016-06-30
Frequently asked questions
- What is Mary Nieraeth's NPI number?
- Mary Nieraeth's National Provider Identifier (NPI) is 1881045870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nieraeth's specialty?
- Mary Nieraeth is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mary Nieraeth located?
- Mary Nieraeth's practice location on file with NPPES is 8311 Florence Ave, Downey, CA 90240-3928.
- What is Mary Nieraeth's phone number?
- The practice phone number listed in the NPPES registry for Mary Nieraeth is (562) 943-4911.
- Is Mary Nieraeth's NPI active?
- Yes — Mary Nieraeth's NPI (1881045870) is active in the NPPES registry as of the last update on 2016-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.