IndividualActive
Matthew Siefert
NPI 1437099231 · Behavior Technician · San Diego, CA
Matthew Siefert is a Behavior Technician provider in San Diego, CA (NPI 1437099231).
Provider details
- NPI number
- 1437099231
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(46/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
3111 Camino Del Rio N Ste 400
San Diego, CA 92108-5724
Phone: (888) 922-2843
Street-level locationGet directions
Mailing address
100 N Pacific Coast Hwy Ste 1400
El Segundo, CA 90245-5602
Registry dates
- Enumerated
- 2026-03-31
- Last updated
- 2026-03-31
- Certified
- 2026-03-31
Frequently asked questions
- What is Matthew Siefert's NPI number?
- Matthew Siefert's National Provider Identifier (NPI) is 1437099231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Siefert's specialty?
- Matthew Siefert is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Matthew Siefert located?
- Matthew Siefert's practice location on file with NPPES is 3111 Camino Del Rio N Ste 400, San Diego, CA 92108-5724.
- What is Matthew Siefert's phone number?
- The practice phone number listed in the NPPES registry for Matthew Siefert is (888) 922-2843.
- Is Matthew Siefert's NPI active?
- Yes — Matthew Siefert's NPI (1437099231) is active in the NPPES registry as of the last update on 2026-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.