IndividualActive
William Zappas, A.S.W.
NPI 1760717664 · Clinical Social Worker · Oakland, CA
William Zappas, A.S.W. is a Clinical Social Worker provider in Oakland, CA (NPI 1760717664).
Provider details
- NPI number
- 1760717664
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- A.S.W.
- Sex
- Male
- Sole proprietor
- Yes
- License
- SW21980110 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(85/100 index)
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
1814 Franklin St
4th Floor
Oakland, CA 94612-3487
Phone: (510) 318-6102
Street-level locationGet directions
Mailing address
1814 Franklin St Fl 4
Oakland, CA 94612-3487
Registry dates
- Enumerated
- 2009-10-09
- Last updated
- 2013-06-04
Frequently asked questions
- What is William Zappas's NPI number?
- William Zappas's National Provider Identifier (NPI) is 1760717664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zappas's specialty?
- William Zappas is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Zappas located?
- William Zappas's practice location on file with NPPES is 1814 Franklin St, Oakland, CA 94612-3487.
- What is William Zappas's phone number?
- The practice phone number listed in the NPPES registry for William Zappas is (510) 318-6102.
- Is William Zappas's NPI active?
- Yes — William Zappas's NPI (1760717664) is active in the NPPES registry as of the last update on 2013-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.