Active NPI
John Daliva, DO Inc
- Addiction Medicine (Internal Medicine) Physician
- Montclair, CA
National Provider Identifier
1710556667
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction Medicine (Internal Medicine) Physician
- Legal business name
- JOHN DALIVA, DO INC
- Doing business as
- John Daliva, DO
- Practice address
- 9620 Fremont Ave
Montclair, CA 91763-2320 - Phone
- (909) 621-4751
- Fax
- (909) 801-7008
- NPI assigned
- Jun 23, 2021
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- John Daliva, DO
- Title
- Owner
- Phone
- (909) 970-5700
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Addiction Medicine (Internal Medicine) Physician | 207RA0401X | Primary |
Addresses
Primary practice location
9620 Fremont Ave
Montclair, CA 91763-2320
Mailing address
PO Box 2698
Chino Hills, CA 91709-0090
Phone (909) 970-5700
Other practice location 1
867 E 11th St
Upland, CA 91786-4867
Phone (909) 985-1981
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 20A17362 | Other | CA | MEDICAL LICENSE |
Other names 1
- John Daliva, DO
National Provider Directory
National Provider DirectoryNPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1624406400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1774915200000",
"number": "1710556667",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2698",
"city": "CHINO HILLS",
"state": "CA",
"postal_code": "917090090",
"telephone_number": "909-970-5700"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "9620 FREMONT AVE",
"city": "MONTCLAIR",
"state": "CA",
"postal_code": "917632320",
"telephone_number": "909-621-4751",
"fax_number": "909-801-7008"
}
],
"practiceLocations": [
{
"address_1": "867 E 11th St",
"address_purpose": "LOCATION",
"city": "Upland",
"state": "CA",
"postal_code": "917864867",
"country_code": "US",
"telephone_number": "909-985-1981",
"fax_number": "909-982-2885",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "JOHN DALIVA, DO INC",
"organizational_subpart": "NO",
"enumeration_date": "2021-06-23",
"last_updated": "2026-03-31",
"certification_date": "2026-03-31",
"status": "A",
"authorized_official_last_name": "DALIVA",
"authorized_official_first_name": "JOHN",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "909-970-5700",
"authorized_official_credential": "DO"
},
"taxonomies": [
{
"code": "207RA0401X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Internal Medicine, Addiction Medicine",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICAL LICENSE",
"identifier": "20A17362",
"state": "CA"
}
],
"endpoints": [],
"other_names": [
{
"organization_name": "John Daliva, DO",
"code": "3",
"type": "Doing Business As"
},
{
"organization_name": "John Daliva, DO",
"code": "3",
"type": "Doing Business As"
}
]
}Other providers in Montclair, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 31, 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.