Sevan Tahmassian
NPI 1699238311 · Marriage & Family Therapist · Glendale, CA
Sevan Tahmassian is a Marriage & Family Therapist provider in Glendale, CA (NPI 1699238311).
Provider details
- NPI number
- 1699238311
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
Mailing address
Registry dates
- Enumerated
- 2019-04-09
- Last updated
- 2025-06-02
- Certified
- 2025-06-02
Frequently asked questions
- What is Sevan Tahmassian's NPI number?
- Sevan Tahmassian's National Provider Identifier (NPI) is 1699238311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sevan Tahmassian's specialty?
- Sevan Tahmassian is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sevan Tahmassian located?
- Sevan Tahmassian's practice location on file with NPPES is 100 N Brand Blvd Ste 528, Glendale, CA 91203-2614.
- What is Sevan Tahmassian's phone number?
- The practice phone number listed in the NPPES registry for Sevan Tahmassian is (818) 331-5520.
- Is Sevan Tahmassian's NPI active?
- Yes — Sevan Tahmassian's NPI (1699238311) is active in the NPPES registry as of the last update on 2025-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.