IndividualActive
Ruby Darling
NPI 1043766256 · Behavior Analyst · San Francisco, CA
Ruby Darling is a Behavior Analyst provider in San Francisco, CA (NPI 1043766256).
Provider details
- NPI number
- 1043766256
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
139 Hugo Street
Apt 3
San Francisco, CA 94122-2738
Phone: (310) 691-3644
Street-level locationGet directions
Mailing address
4106 Terrace St
Oakland, CA 94611-5162
Registry dates
- Enumerated
- 2016-08-28
- Last updated
- 2016-08-28
Frequently asked questions
- What is Ruby Darling's NPI number?
- Ruby Darling's National Provider Identifier (NPI) is 1043766256, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruby Darling's specialty?
- Ruby Darling is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Ruby Darling located?
- Ruby Darling's practice location on file with NPPES is 139 Hugo Street, San Francisco, CA 94122-2738.
- What is Ruby Darling's phone number?
- The practice phone number listed in the NPPES registry for Ruby Darling is (310) 691-3644.
- Is Ruby Darling's NPI active?
- Yes — Ruby Darling's NPI (1043766256) is active in the NPPES registry as of the last update on 2016-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.