Active NPI
Arthur Ritmeester, PH.D.
- Psychologist
- Pomona, CA
National Provider Identifier
1598553216
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- PSY29413
- Practice address
- 3801 W Temple Ave BLDG 66-116
Pomona, CA 91768-2557 - Phone
- (909) 869-3220
- NPI assigned
- Apr 30, 2025
- Last updated
- Apr 30, 2025
- 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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | PSY29413 | CA | Primary |
Addresses
Primary practice location
3801 W Temple Ave BLDG 66-116
Pomona, CA 91768-2557
Mailing address
3801 W Temple Ave BLDG 66-116
Pomona, CA 91768-2557
Phone (909) 869-3220
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 |
|---|---|---|---|
| PSY29413 | CA | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1745971200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1745971200000",
"number": "1598553216",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3801 W TEMPLE AVE BLDG 66-116",
"city": "POMONA",
"state": "CA",
"postal_code": "917682557",
"telephone_number": "909-869-3220"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3801 W TEMPLE AVE BLDG 66-116",
"city": "POMONA",
"state": "CA",
"postal_code": "917682557",
"telephone_number": "909-869-3220"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RITMEESTER",
"first_name": "ARTHUR",
"credential": "PH.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2025-04-30",
"last_updated": "2025-04-30",
"certification_date": "2025-04-30",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "CA",
"license": "PSY29413",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Pomona, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 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.