Percy Castellanos, B.A.
NPI 1518127471 · Clinical Social Worker · Berkeley, CA
Percy Castellanos, B.A. is a Clinical Social Worker provider in Berkeley, CA (NPI 1518127471).
Provider details
- NPI number
- 1518127471
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- B.A.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ASW31571 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
18 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
- 2008-06-13
- Last updated
- 2021-10-07
- Certified
- 2021-10-07
Frequently asked questions
- What is Percy Castellanos's NPI number?
- Percy Castellanos's National Provider Identifier (NPI) is 1518127471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Percy Castellanos's specialty?
- Percy Castellanos is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Percy Castellanos located?
- Percy Castellanos's practice location on file with NPPES is 3101 Telegraph Ave Fl 2, Berkeley, CA 94705-1984.
- What is Percy Castellanos's phone number?
- The practice phone number listed in the NPPES registry for Percy Castellanos is (510) 924-4838.
- Is Percy Castellanos's NPI active?
- Yes — Percy Castellanos's NPI (1518127471) is active in the NPPES registry as of the last update on 2021-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.