Active NPI
Mark James Chubb, LCSW
- Clinical Social Worker
- San Jose, CA
National Provider Identifier
1134586860
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- LCSW108048
- Practice address
- 130 N. Jackson Ave
San Jose, CA 95116 - Phone
- (408) 535-4652
- Fax
- (408) 984-3455
- NPI assigned
- Jan 26, 2016
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Social Worker | 104100000X | |||
| Case Manager/Care Coordinator | 171M00000X | |||
| Clinical Social Worker | 1041C0700X | LCSW108048 | CA | Primary |
Addresses
Primary practice location
130 N. Jackson Ave
San Jose, CA 95116
Mailing address
4771 Hatfield Walkway
Unit 4
San Jose, CA 95124
Phone (408) 466-2020
Other practice location 1
9015 Murray Ave
suite 100
Gilroy, CA 95020-3617
Phone (408) 846-4719
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 |
|---|---|---|---|
| LCSW108048 | CA | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1453766400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754524800000",
"number": "1134586860",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4771 HATFIELD WALKWAY",
"address_2": "UNIT 4",
"city": "SAN JOSE",
"state": "CA",
"postal_code": "95124",
"telephone_number": "408-466-2020",
"fax_number": "408-984-3455"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "130 N. JACKSON AVE",
"city": "SAN JOSE",
"state": "CA",
"postal_code": "95116",
"telephone_number": "408-535-4652",
"fax_number": "408-984-3455"
}
],
"practiceLocations": [
{
"address_1": "9015 Murray Ave",
"address_2": "suite 100",
"address_purpose": "LOCATION",
"city": "Gilroy",
"state": "CA",
"postal_code": "950203617",
"country_code": "US",
"telephone_number": "408-846-4719",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHUBB",
"first_name": "MARK",
"middle_name": "JAMES",
"credential": "LCSW",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2016-01-26",
"last_updated": "2025-08-07",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": null,
"license": null,
"primary": false
},
{
"code": "171M00000X",
"taxonomy_group": "",
"desc": "Case Manager/Care Coordinator",
"state": null,
"license": null,
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CA",
"license": "LCSW108048",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in San Jose, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 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.