Cornel Thiersen, AMFT
NPI 1013882356 · Marriage & Family Therapist · San Clemente, CA
Cornel Thiersen, AMFT is a Marriage & Family Therapist provider in San Clemente, CA (NPI 1013882356).
Provider details
- NPI number
- 1013882356
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- AMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- PENDING (CA)
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
Under 1 yr in 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
Mailing address
Registry dates
- Enumerated
- 2025-10-07
- Last updated
- 2025-10-07
- Certified
- 2025-10-07
Frequently asked questions
- What is Cornel Thiersen's NPI number?
- Cornel Thiersen's National Provider Identifier (NPI) is 1013882356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cornel Thiersen's specialty?
- Cornel Thiersen is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Cornel Thiersen located?
- Cornel Thiersen's practice location on file with NPPES is 302 N El Camino Real Ste 216, San Clemente, CA 92672-4778.
- What is Cornel Thiersen's phone number?
- The practice phone number listed in the NPPES registry for Cornel Thiersen is (949) 212-3266.
- Is Cornel Thiersen's NPI active?
- Yes — Cornel Thiersen's NPI (1013882356) is active in the NPPES registry as of the last update on 2025-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.