Active NPI
Charles Jasper McWhorter
- Behavior Technician
- San Mateo, CA
National Provider Identifier
1164379103
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Behavior Technician
- License
- Y9273175
- Practice address
- 1818 Gum St
San Mateo, CA 94402-3000 - Phone
- (650) 437-3606
- NPI assigned
- Mar 10, 2026
- 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 |
|---|---|---|---|---|
| Behavior Technician | 106S00000X | Y9273175 | CA | Primary |
Addresses
Primary practice location
1818 Gum St
San Mateo, CA 94402-3000
Mailing address
1818 Gum St
San Mateo, CA 94402-3000
Phone (650) 437-3606
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| Y9273175 | CA | MD | Behavior Technician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1773100800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1773100800000",
"number": "1164379103",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1818 GUM ST",
"city": "SAN MATEO",
"state": "CA",
"postal_code": "944023000",
"telephone_number": "650-437-3606"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1818 GUM ST",
"city": "SAN MATEO",
"state": "CA",
"postal_code": "944023000",
"telephone_number": "650-437-3606"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MCWHORTER",
"first_name": "CHARLES",
"middle_name": "JASPER",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-03-10",
"last_updated": "2026-03-10",
"certification_date": "2026-03-10",
"status": "A"
},
"taxonomies": [
{
"code": "106S00000X",
"taxonomy_group": "",
"desc": "Behavior Technician",
"state": "CA",
"license": "Y9273175",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in San Mateo, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.