IndividualActive
Ethan Tonomura
NPI 1598317604 · Mental Health Counselor · San Jose, CA
Ethan Tonomura is a Mental Health Counselor provider in San Jose, CA (NPI 1598317604).
Provider details
- NPI number
- 1598317604
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 160594 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
3588 Zanker Rd
San Jose, CA 95134-2201
Phone: (408) 423-2000
Street-level locationGet directions
Mailing address
216 Fernwood Dr
Moraga, CA 94556-2116
Registry dates
- Enumerated
- 2019-07-10
- Last updated
- 2026-01-20
- Certified
- 2026-01-20
Frequently asked questions
- What is Ethan Tonomura's NPI number?
- Ethan Tonomura's National Provider Identifier (NPI) is 1598317604, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Tonomura's specialty?
- Ethan Tonomura is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Ethan Tonomura located?
- Ethan Tonomura's practice location on file with NPPES is 3588 Zanker Rd, San Jose, CA 95134-2201.
- What is Ethan Tonomura's phone number?
- The practice phone number listed in the NPPES registry for Ethan Tonomura is (408) 423-2000.
- Is Ethan Tonomura's NPI active?
- Yes — Ethan Tonomura's NPI (1598317604) is active in the NPPES registry as of the last update on 2026-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.