Derek Deng
NPI 1114686383 · Day Training/Habilitation Specialist · San Rafael, CA
Derek Deng is a Day Training/Habilitation Specialist provider in San Rafael, CA (NPI 1114686383).
Provider details
- NPI number
- 1114686383
- Entity type
- Individual
- Primary specialty
- Day Training/Habilitation SpecialistNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Nursing Service Related 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
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 39210 State St Ste 220Fremont, CA 94538-1456Phone: (510) 894-4135
Registry dates
- Enumerated
- 2021-12-14
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Derek Deng's NPI number?
- Derek Deng's National Provider Identifier (NPI) is 1114686383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Deng's specialty?
- Derek Deng is listed in the NPPES registry with a primary specialty of Day Training/Habilitation Specialist (Nursing Service Related Providers).
- Where is Derek Deng located?
- Derek Deng's practice location on file with NPPES is 920 Grand Ave, San Rafael, CA 94901-3506.
- What is Derek Deng's phone number?
- The practice phone number listed in the NPPES registry for Derek Deng is (415) 376-2310.
- Is Derek Deng's NPI active?
- Yes — Derek Deng's NPI (1114686383) 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.