Larry Oliff
NPI 1215397351 · Addiction (Substance Use Disorder) Counselor · Orange, CA
Larry Oliff is a Addiction (Substance Use Disorder) Counselor provider in Orange, CA (NPI 1215397351).
Provider details
- NPI number
- 1215397351
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- CI2250315 (CA)
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
10 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
- 2016-03-02
- Last updated
- 2016-03-02
Frequently asked questions
- What is Larry Oliff's NPI number?
- Larry Oliff's National Provider Identifier (NPI) is 1215397351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Oliff's specialty?
- Larry Oliff is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Larry Oliff located?
- Larry Oliff's practice location on file with NPPES is 705 W La Veta Ave, Orange, CA 92868-4402.
- What is Larry Oliff's phone number?
- The practice phone number listed in the NPPES registry for Larry Oliff is (714) 532-9295.
- Is Larry Oliff's NPI active?
- Yes — Larry Oliff's NPI (1215397351) is active in the NPPES registry as of the last update on 2016-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.