IndividualActive
Christopher Johnnidis, MA
NPI 1821631284 · Professional Counselor · Oakland, CA
Christopher Johnnidis, MA is a Professional Counselor provider in Oakland, CA (NPI 1821631284).
Provider details
- NPI number
- 1821631284
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- MA
- Sex
- Male
- Sole proprietor
- No
- License
- 7171 (CA)
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
6 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
2501 Harrison St
Oakland, CA 94612-3811
Phone: (510) 788-0876
Street-level locationGet directions
Mailing address
2501 Harrison St
Oakland, CA 94612-3811
Registry dates
- Enumerated
- 2019-10-17
- Last updated
- 2019-10-17
Frequently asked questions
- What is Christopher Johnnidis's NPI number?
- Christopher Johnnidis's National Provider Identifier (NPI) is 1821631284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Johnnidis's specialty?
- Christopher Johnnidis is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Christopher Johnnidis located?
- Christopher Johnnidis's practice location on file with NPPES is 2501 Harrison St, Oakland, CA 94612-3811.
- What is Christopher Johnnidis's phone number?
- The practice phone number listed in the NPPES registry for Christopher Johnnidis is (510) 788-0876.
- Is Christopher Johnnidis's NPI active?
- Yes — Christopher Johnnidis's NPI (1821631284) is active in the NPPES registry as of the last update on 2019-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.