Jack Mayhall, LMFT
NPI 1336379171 · Marriage & Family Therapist · Northridge, CA
Jack Mayhall, LMFT is a Marriage & Family Therapist provider in Northridge, CA (NPI 1336379171).
Provider details
- NPI number
- 1336379171
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC33009 (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
16 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
- 2009-07-14
- Last updated
- 2023-12-28
- Certified
- 2023-12-28
Frequently asked questions
- What is Jack Mayhall's NPI number?
- Jack Mayhall's National Provider Identifier (NPI) is 1336379171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Mayhall's specialty?
- Jack Mayhall is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Jack Mayhall located?
- Jack Mayhall's practice location on file with NPPES is 9325 White Oak Ave, Northridge, CA 91325-2347.
- What is Jack Mayhall's phone number?
- The practice phone number listed in the NPPES registry for Jack Mayhall is (310) 422-6803.
- Is Jack Mayhall's NPI active?
- Yes — Jack Mayhall's NPI (1336379171) is active in the NPPES registry as of the last update on 2023-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.