Marilyn Tonneson, MFT
NPI 1679541486 · Marriage & Family Therapist · Atascadero, CA
Marilyn Tonneson, MFT is a Marriage & Family Therapist provider in Atascadero, CA (NPI 1679541486).
Provider details
- NPI number
- 1679541486
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- License
- MFC 19856 (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
20 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
Mailing address
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marilyn Tonneson's NPI number?
- Marilyn Tonneson's National Provider Identifier (NPI) is 1679541486, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Tonneson's specialty?
- Marilyn Tonneson is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marilyn Tonneson located?
- Marilyn Tonneson's practice location on file with NPPES is 4555 El Camino Real, Atascadero, CA 93422-2700.
- What is Marilyn Tonneson's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Tonneson is (805) 461-1711.
- Is Marilyn Tonneson's NPI active?
- Yes — Marilyn Tonneson's NPI (1679541486) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.