Stephen Altbaum, M.F.T.
NPI 1851469894 · Marriage & Family Therapist · Union City, CA
Stephen Altbaum, M.F.T. is a Marriage & Family Therapist provider in Union City, CA (NPI 1851469894).
Provider details
- NPI number
- 1851469894
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.F.T.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 33756 (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
- 2006-11-30
- Last updated
- 2015-05-22
Frequently asked questions
- What is Stephen Altbaum's NPI number?
- Stephen Altbaum's National Provider Identifier (NPI) is 1851469894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Altbaum's specialty?
- Stephen Altbaum is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Stephen Altbaum located?
- Stephen Altbaum's practice location on file with NPPES is 3555 Whipple Road, Union City, CA 94587-1507.
- What is Stephen Altbaum's phone number?
- The practice phone number listed in the NPPES registry for Stephen Altbaum is (510) 454-1000.
- Is Stephen Altbaum's NPI active?
- Yes — Stephen Altbaum's NPI (1851469894) is active in the NPPES registry as of the last update on 2015-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.