Donald Gershberg, MA MFT
NPI 1427135607 · Marriage & Family Therapist · Los Alamitos, CA
Donald Gershberg, MA MFT is a Marriage & Family Therapist provider in Los Alamitos, CA (NPI 1427135607).
Provider details
- NPI number
- 1427135607
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MA MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC 41176 (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
19 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
- 2006-11-01
- Last updated
- 2012-03-28
Frequently asked questions
- What is Donald Gershberg's NPI number?
- Donald Gershberg's National Provider Identifier (NPI) is 1427135607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Gershberg's specialty?
- Donald Gershberg is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Donald Gershberg located?
- Donald Gershberg's practice location on file with NPPES is 4281 Katella Ave, Los Alamitos, CA 90720-3500.
- What is Donald Gershberg's phone number?
- The practice phone number listed in the NPPES registry for Donald Gershberg is (818) 203-5531.
- Is Donald Gershberg's NPI active?
- Yes — Donald Gershberg's NPI (1427135607) is active in the NPPES registry as of the last update on 2012-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.