IndividualActive
Maria Kostouros
NPI 1679738553 · Mental Health Counselor · San Jose, CA
Maria Kostouros is a Mental Health Counselor provider in San Jose, CA (NPI 1679738553).
Provider details
- NPI number
- 1679738553
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
2001 the Alameda
San Jose, CA 95126-1136
Phone: (408) 261-7777
Fax: (408) 254-9960
Street-level locationGet directions
Mailing address
2387 N Rock Creek Dr
Los Banos, CA 93635-8814
Registry dates
- Enumerated
- 2008-07-21
- Last updated
- 2008-07-21
Frequently asked questions
- What is Maria Kostouros's NPI number?
- Maria Kostouros's National Provider Identifier (NPI) is 1679738553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Kostouros's specialty?
- Maria Kostouros is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Maria Kostouros located?
- Maria Kostouros's practice location on file with NPPES is 2001 the Alameda, San Jose, CA 95126-1136.
- What is Maria Kostouros's phone number?
- The practice phone number listed in the NPPES registry for Maria Kostouros is (408) 261-7777.
- Is Maria Kostouros's NPI active?
- Yes — Maria Kostouros's NPI (1679738553) is active in the NPPES registry as of the last update on 2008-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.