Justine Mastin, LMFT, LADC
NPI 1023564093 · Marriage & Family Therapist · Minneapolis, MN
Justine Mastin, LMFT, LADC is a Marriage & Family Therapist provider in Minneapolis, MN (NPI 1023564093).
Provider details
- NPI number
- 1023564093
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT, LADC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 303216 (MN)
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
9 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
- 2016-08-30
- Last updated
- 2018-07-09
Frequently asked questions
- What is Justine Mastin's NPI number?
- Justine Mastin's National Provider Identifier (NPI) is 1023564093, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justine Mastin's specialty?
- Justine Mastin is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Justine Mastin located?
- Justine Mastin's practice location on file with NPPES is 6640 Lyndale Ave S Ste 110, Minneapolis, MN 55423.
- What is Justine Mastin's phone number?
- The practice phone number listed in the NPPES registry for Justine Mastin is (612) 324-0198.
- Is Justine Mastin's NPI active?
- Yes — Justine Mastin's NPI (1023564093) is active in the NPPES registry as of the last update on 2018-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.