What is Naoko Sumii's NPI number?

Naoko Sumii's National Provider Identifier (NPI) is 1336936988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Naoko Sumii's specialty?

Naoko Sumii is listed in the NPPES registry with a primary specialty of Doula (Nursing Service Related Providers).

Where is Naoko Sumii located?

Naoko Sumii's practice location on file with NPPES is 1221 Liberty St Unit B, El Cerrito, CA 94530-2308.

What is Naoko Sumii's phone number?

The practice phone number listed in the NPPES registry for Naoko Sumii is (510) 421-3002.

Is Naoko Sumii's NPI active?

Yes — Naoko Sumii's NPI (1336936988) is active in the NPPES registry as of the last update on 2025-04-24.

IndividualActive

Naoko Sumii

NPI 1336936988 · Doula · El Cerrito, CA

Naoko Sumii is a Doula provider in El Cerrito, CA (NPI 1336936988).

Provider details

NPI number: 1336936988
Entity type: Individual
Primary specialty: DoulaNursing Service Related Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

DoulaPrimary374J00000X
Nursing Service Related 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
1 yr 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

1221 Liberty St Unit B

El Cerrito, CA 94530-2308

Phone: (510) 421-3002

Street-level locationGet directions

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Mailing address