Nancy Hopstein, M.S. MFT
NPI 1902137011 · Marriage & Family Therapist · Brea, CA
Nancy Hopstein, M.S. MFT is a Marriage & Family Therapist provider in Brea, CA (NPI 1902137011).
Provider details
- NPI number
- 1902137011
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.S. MFT
- Sex
- Female
- Sole proprietor
- No
- License
- 52523I (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
- 2010-01-29
- Last updated
- 2010-01-29
Frequently asked questions
- What is Nancy Hopstein's NPI number?
- Nancy Hopstein's National Provider Identifier (NPI) is 1902137011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Hopstein's specialty?
- Nancy Hopstein is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Nancy Hopstein located?
- Nancy Hopstein's practice location on file with NPPES is 915 W Imperial Hwy Ste 150, Brea, CA 92821-3854.
- What is Nancy Hopstein's phone number?
- The practice phone number listed in the NPPES registry for Nancy Hopstein is (800) 998-6329.
- Is Nancy Hopstein's NPI active?
- Yes — Nancy Hopstein's NPI (1902137011) is active in the NPPES registry as of the last update on 2010-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.