John Sarkisian
NPI 1649147471 · Addiction (Substance Use Disorder) Counselor · Costa Mesa, CA
John Sarkisian is a Addiction (Substance Use Disorder) Counselor provider in Costa Mesa, CA (NPI 1649147471).
Provider details
- NPI number
- 1649147471
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- R1576820824 (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
Under 1 yr in 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
- 2025-10-17
- Last updated
- 2025-10-24
- Certified
- 2025-10-17
Frequently asked questions
- What is John Sarkisian's NPI number?
- John Sarkisian's National Provider Identifier (NPI) is 1649147471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sarkisian's specialty?
- John Sarkisian is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Sarkisian located?
- John Sarkisian's practice location on file with NPPES is 275 Victoria St Ste 1h, Costa Mesa, CA 92627-1906.
- What is John Sarkisian's phone number?
- The practice phone number listed in the NPPES registry for John Sarkisian is (949) 629-2860.
- Is John Sarkisian's NPI active?
- Yes — John Sarkisian's NPI (1649147471) is active in the NPPES registry as of the last update on 2025-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.