Active NPI
Christopher Johnnidis, MA
- Professional Counselor
- Oakland, CA
National Provider Identifier
1821631284
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Professional Counselor
- License
- 7171
- Practice address
- 2501 Harrison St
Oakland, CA 94612-3811 - Phone
- (510) 788-0876
- NPI assigned
- Oct 17, 2019
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | 7171 | CA | Primary |
Addresses
Primary practice location
2501 Harrison St
Oakland, CA 94612-3811
Mailing address
2501 Harrison St
Oakland, CA 94612-3811
Phone (510) 788-0876
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Mar 7, 2026 through Mar 7, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Master of Arts
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1571270400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1571270400000",
"number": "1821631284",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2501 HARRISON ST",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946123811",
"telephone_number": "510-788-0876"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2501 HARRISON ST",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946123811",
"telephone_number": "510-788-0876"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JOHNNIDIS",
"first_name": "CHRISTOPHER",
"credential": "MA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-10-17",
"last_updated": "2019-10-17",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "CA",
"license": "7171",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Oakland, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 17, 2019; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.