Active NPI
John Knippa, PH.D.
- Clinical Neuropsychologist
- Long Beach, CA
National Provider Identifier
1295814150
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Neuropsychologist
- License
- PSY8833
- Practice address
- 1650 Ximeno Ave
#230
Long Beach, CA 90804-2150 - Phone
- (562) 494-3633
- NPI assigned
- Nov 3, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | PSY8833 | CA | |
| Clinical Psychologist | 103TC0700X | 93-261633-2501 | UT | |
| Clinical Neuropsychologist | 103G00000X | 93-261633-2501 | UT | |
| Clinical Neuropsychologist | 103G00000X | PSY8833 | CA | Primary |
Addresses
Primary practice location
1650 Ximeno Ave
#230
Long Beach, CA 90804-2150
Mailing address
1650 Ximeno Ave
#230
Long Beach, CA 90804-2150
Phone (562) 494-3633
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PSY8833 | CA | MD | Clinical Psychologist |
| 93-261633-2501 | UT | MD | Clinical Psychologist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Ronald T. Silverstein, M.D. Apc | Past | Accepting new patients | |
| Coast Psychiatric Associates | Past | Accepting new patients |
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Psychiatry Physician
- Long Beach, CA
- NPI 1962625590
-
- Psychiatry Physician
- Long Beach, CA
- NPI 1891918405
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1162512000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1295814150",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1650 XIMENO AVE",
"address_2": "#230",
"city": "LONG BEACH",
"state": "CA",
"postal_code": "908042150",
"telephone_number": "562-494-3633"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1650 XIMENO AVE",
"address_2": "#230",
"city": "LONG BEACH",
"state": "CA",
"postal_code": "908042150",
"telephone_number": "562-494-3633"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KNIPPA",
"first_name": "JOHN",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-11-03",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CA",
"license": "PSY8833",
"primary": false
},
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "UT",
"license": "93-261633-2501",
"primary": false
},
{
"code": "103G00000X",
"taxonomy_group": "",
"desc": "Clinical Neuropsychologist",
"state": "UT",
"license": "93-261633-2501",
"primary": false
},
{
"code": "103G00000X",
"taxonomy_group": "",
"desc": "Clinical Neuropsychologist",
"state": "CA",
"license": "PSY8833",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Long Beach, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.