Jonathan Willett, MA
NPI 1801102033 · Marriage & Family Therapist · Oakland, CA
Jonathan Willett, MA is a Marriage & Family Therapist provider in Oakland, CA (NPI 1801102033).
Provider details
- NPI number
- 1801102033
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MA
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
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
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
Mailing address
Registry dates
- Enumerated
- 2010-08-25
- Last updated
- 2014-12-15
Frequently asked questions
- What is Jonathan Willett's NPI number?
- Jonathan Willett's National Provider Identifier (NPI) is 1801102033, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Willett's specialty?
- Jonathan Willett is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Jonathan Willett located?
- Jonathan Willett's practice location on file with NPPES is 629 Oakland Ave, Oakland, CA 94611-4567.
- What is Jonathan Willett's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Willett is (510) 393-9882.
- Is Jonathan Willett's NPI active?
- Yes — Jonathan Willett's NPI (1801102033) is active in the NPPES registry as of the last update on 2014-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.