Sean Sullivan
NPI 1356049191 · Addiction (Substance Use Disorder) Counselor · Clearlake Oaks, CA
Sean Sullivan is a Addiction (Substance Use Disorder) Counselor provider in Clearlake Oaks, CA (NPI 1356049191).
Provider details
- NPI number
- 1356049191
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 17429 (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
3 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
- 2023-02-21
- Last updated
- 2023-02-21
- Certified
- 2023-02-17
Frequently asked questions
- What is Sean Sullivan's NPI number?
- Sean Sullivan's National Provider Identifier (NPI) is 1356049191, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Sullivan's specialty?
- Sean Sullivan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sean Sullivan located?
- Sean Sullivan's practice location on file with NPPES is 14715 E. Hwy 20, Clearlake Oaks, CA 95423.
- What is Sean Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Sean Sullivan is (707) 998-1800.
- Is Sean Sullivan's NPI active?
- Yes — Sean Sullivan's NPI (1356049191) is active in the NPPES registry as of the last update on 2023-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.