Tamara Johnstone, LMFT
NPI 1598998114 · Marriage & Family Therapist · Alta Loma, CA
Tamara Johnstone, LMFT is a Marriage & Family Therapist provider in Alta Loma, CA (NPI 1598998114).
Provider details
- NPI number
- 1598998114
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC46267 (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
- 2009-08-30
- Last updated
- 2009-08-30
Frequently asked questions
- What is Tamara Johnstone's NPI number?
- Tamara Johnstone's National Provider Identifier (NPI) is 1598998114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tamara Johnstone's specialty?
- Tamara Johnstone is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Tamara Johnstone located?
- Tamara Johnstone's practice location on file with NPPES is 6691 Beryl St, Alta Loma, CA 91701-4605.
- What is Tamara Johnstone's phone number?
- The practice phone number listed in the NPPES registry for Tamara Johnstone is (909) 996-4845.
- Is Tamara Johnstone's NPI active?
- Yes — Tamara Johnstone's NPI (1598998114) is active in the NPPES registry as of the last update on 2009-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.