Erin Cassidy
NPI 1619269917 · Addiction (Substance Use Disorder) Counselor · San Leandro, CA
Erin Cassidy is a Addiction (Substance Use Disorder) Counselor provider in San Leandro, CA (NPI 1619269917).
Provider details
- NPI number
- 1619269917
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-05-05
- Last updated
- 2011-05-05
Frequently asked questions
- What is Erin Cassidy's NPI number?
- Erin Cassidy's National Provider Identifier (NPI) is 1619269917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Cassidy's specialty?
- Erin Cassidy is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Erin Cassidy located?
- Erin Cassidy's practice location on file with NPPES is 2035 Fairmont Dr, San Leandro, CA 94578-1088.
- What is Erin Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Erin Cassidy is (510) 346-7832.
- Is Erin Cassidy's NPI active?
- Yes — Erin Cassidy's NPI (1619269917) is active in the NPPES registry as of the last update on 2011-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.