Siobhan Cassidy, LCSW
NPI 1326701541 · Clinical Social Worker · San Diego, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siobhan Cassidy, LCSW is a Clinical Social Worker provider in San Diego, CA (NPI 1326701541).
Provider details
- NPI number
- 1326701541
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 099095 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
4 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
- 2021-10-14
- Last updated
- 2023-03-07
- Certified
- 2023-03-07
Frequently asked questions
- What is Siobhan Cassidy's NPI number?
- Siobhan Cassidy's National Provider Identifier (NPI) is 1326701541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siobhan Cassidy's specialty?
- Siobhan Cassidy is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Siobhan Cassidy located?
- Siobhan Cassidy's practice location on file with NPPES is 2021 Abbott St, San Diego, CA 92107-2503.
- What is Siobhan Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Siobhan Cassidy is (619) 602-3579.
- Does Siobhan Cassidy accept Medicare?
- Siobhan Cassidy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siobhan Cassidy's NPI active?
- Yes — Siobhan Cassidy's NPI (1326701541) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.