Walter Christian, PHD
NPI 1780721928 · Clinical Neuropsychologist · Union City, CA
Walter Christian, PHD is a Clinical Neuropsychologist provider in Union City, CA (NPI 1780721928).
Provider details
- NPI number
- 1780721928
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY11381 (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
- 2007-01-30
- Last updated
- 2015-05-22
Frequently asked questions
- What is Walter Christian's NPI number?
- Walter Christian's National Provider Identifier (NPI) is 1780721928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Christian's specialty?
- Walter Christian is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Walter Christian located?
- Walter Christian's practice location on file with NPPES is 3555 Whipple Rd, Union City, CA 94587-1507.
- What is Walter Christian's phone number?
- The practice phone number listed in the NPPES registry for Walter Christian is (510) 454-1000.
- Is Walter Christian's NPI active?
- Yes — Walter Christian's NPI (1780721928) 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.