John Jack Cousineau, LMFT
NPI 1548570583 · Marriage & Family Therapist · Martinez, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Jack Cousineau, LMFT is a Marriage & Family Therapist provider in Martinez, CA (NPI 1548570583).
Provider details
- NPI number
- 1548570583
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 90191 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 1425 Oregon St Apt K4Berkeley, CA 94702-2547Phone: (510) 809-7350
- 595 Center Ave Ste 100Martinez, CA 94553-4629Phone: (510) 809-7350Fax: (877) 734-6906
Registry dates
- Enumerated
- 2010-10-08
- Last updated
- 2025-02-05
- Certified
- 2025-02-05
Frequently asked questions
- What is John Jack Cousineau's NPI number?
- John Jack Cousineau's National Provider Identifier (NPI) is 1548570583, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Jack Cousineau's specialty?
- John Jack Cousineau is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Jack Cousineau located?
- John Jack Cousineau's practice location on file with NPPES is 1340 Arnold Dr Ste 200, Martinez, CA 94553-4189.
- What is John Jack Cousineau's phone number?
- The practice phone number listed in the NPPES registry for John Jack Cousineau is (510) 809-7350.
- Does John Jack Cousineau accept Medicare?
- John Jack Cousineau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Jack Cousineau's NPI active?
- Yes — John Jack Cousineau's NPI (1548570583) is active in the NPPES registry as of the last update on 2025-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.