Irene Littlejohn, R1298560318
NPI 1881186823 · Addiction (Substance Use Disorder) Counselor · San Francisco, CA
Irene Littlejohn, R1298560318 is a Addiction (Substance Use Disorder) Counselor provider in San Francisco, CA (NPI 1881186823).
Provider details
- NPI number
- 1881186823
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- R1298560318
- Sex
- Female
- Sole proprietor
- No
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
8 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
- 2018-06-05
- Last updated
- 2018-06-05
Frequently asked questions
- What is Irene Littlejohn's NPI number?
- Irene Littlejohn's National Provider Identifier (NPI) is 1881186823, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Littlejohn's specialty?
- Irene Littlejohn is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Irene Littlejohn located?
- Irene Littlejohn's practice location on file with NPPES is 1601 Donner Ave Ste 3, San Francisco, CA 94124-3277.
- What is Irene Littlejohn's phone number?
- The practice phone number listed in the NPPES registry for Irene Littlejohn is (415) 762-3946.
- Is Irene Littlejohn's NPI active?
- Yes — Irene Littlejohn's NPI (1881186823) is active in the NPPES registry as of the last update on 2018-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.