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Mayumi Saiki, NP
NPI 1396294898 · Occupational Health Registered Nurse · Downey, CA
Mayumi Saiki, NP is a Occupational Health Registered Nurse provider in Downey, CA (NPI 1396294898).
Provider details
- NPI number
- 1396294898
- Entity type
- Individual
- Primary specialty
- Occupational Health Registered NurseNursing Service Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95004609 (CA)
Specialties & taxonomies
Nursing 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
11500 Brookshire Ave
Downey, CA 90241-4917
Phone: (562) 904-5431
Fax: (562) 904-5054
Street-level locationGet directions
Mailing address
11500 Brookshire Ave
Downey, CA 90241-4917
Registry dates
- Enumerated
- 2016-09-25
- Last updated
- 2019-05-08
Frequently asked questions
- What is Mayumi Saiki's NPI number?
- Mayumi Saiki's National Provider Identifier (NPI) is 1396294898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mayumi Saiki's specialty?
- Mayumi Saiki is listed in the NPPES registry with a primary specialty of Occupational Health Registered Nurse (Nursing Service Providers).
- Where is Mayumi Saiki located?
- Mayumi Saiki's practice location on file with NPPES is 11500 Brookshire Ave, Downey, CA 90241-4917.
- What is Mayumi Saiki's phone number?
- The practice phone number listed in the NPPES registry for Mayumi Saiki is (562) 904-5431.
- Is Mayumi Saiki's NPI active?
- Yes — Mayumi Saiki's NPI (1396294898) is active in the NPPES registry as of the last update on 2019-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.