Ellen Stein, OT
NPI 1821577966 · Occupational Therapist · Castro Valley, CA
Ellen Stein, OT is a Occupational Therapist provider in Castro Valley, CA (NPI 1821577966).
Provider details
- NPI number
- 1821577966
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OT
- Sex
- Female
- Sole proprietor
- No
- License
- OT164 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2018-08-09
- Last updated
- 2025-09-11
Frequently asked questions
- What is Ellen Stein's NPI number?
- Ellen Stein's National Provider Identifier (NPI) is 1821577966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Stein's specialty?
- Ellen Stein is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Ellen Stein located?
- Ellen Stein's practice location on file with NPPES is 21966 Dolores St, Castro Valley, CA 94546-6900.
- What is Ellen Stein's phone number?
- The practice phone number listed in the NPPES registry for Ellen Stein is (510) 733-2413.
- Is Ellen Stein's NPI active?
- Yes — Ellen Stein's NPI (1821577966) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.