Ian Mason, MFT
NPI 1679326110 · Marriage & Family Therapist · San Rafael, CA
Ian Mason, MFT is a Marriage & Family Therapist provider in San Rafael, CA (NPI 1679326110).
Provider details
- NPI number
- 1679326110
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 141012 (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
2 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
- 2024-04-05
- Last updated
- 2024-04-05
- Certified
- 2024-04-05
Frequently asked questions
- What is Ian Mason's NPI number?
- Ian Mason's National Provider Identifier (NPI) is 1679326110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Mason's specialty?
- Ian Mason is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Ian Mason located?
- Ian Mason's practice location on file with NPPES is 710 C St Ste 7d, San Rafael, CA 94901-3891.
- What is Ian Mason's phone number?
- The practice phone number listed in the NPPES registry for Ian Mason is (415) 483-2810.
- Is Ian Mason's NPI active?
- Yes — Ian Mason's NPI (1679326110) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.