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JOHN DALIVA, DO INC
NPI 1710556667
Internal Medicine - Addiction Medicine in Montclair, CA

Active since June 23, 2021
9620 FREMONT AVE, MONTCLAIR, CA 91763(909) 621-4751(909) 801-7008 Get Directions Write a Review

NPPES record last updated: March 31, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 31, 2026, Feb 20, 2025, Jun 23, 2021 (3 updates tracked since 2021).

About John Daliva, Do Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN DALIVA, DO INC (NPI 1710556667), doing business as John Daliva, Do, is a healthcare organization registered as an addiction medicine in Montclair, California and active in the NPI registry since June 2021. The organization maintains a secondary practice location in Upland and lists John Daliva, Owner, as its authorized official.

NPPES Registry Identity

NPI1710556667
Entity TypeOrganization
Primary Taxonomy207RA0401X
Legal Business NameJOHN DALIVA, DO INC
Location Address9620 FREMONT AVEMontclair, CA 91763-2320
Mailing AddressPo Box 2698Chino Hills, CA 91709-0090 · (909) 970-5700
Phone(909) 621-4751
Fax(909) 801-7008
Organization SubpartNo
Authorized OfficialJohn DalivaOwner · (909) 970-5700
Enumeration DateJune 23, 2021
Last NPPES UpdateMarch 31, 20263 updates tracked since enumeration
NPPES CertifiedMarch 31, 2026
✔ NPI 1710556667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RA0401X
Definition
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
9620 FREMONT AVE, Montclair, CA 91763
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Other Names 1

Doing Business AsJohn Daliva, Do

Secondary Practice Location 1

Location 1867 E 11th StUpland, CA 91786-4867 · Phone (909) 985-1981 · Fax (909) 982-2885

Other Identifiers 1

Other20A17362CA · Medical License

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NOAH WILLIAM VUTHEIKUN COTA/L
Occupational Therapy Assistant
9620 FREMONT AVE
MONTCLAIR, CA 91763
San Bernardino County (909) 621-4751
COMMUNITY CONVALESCENT CENTER OF MONTCLAIR INC
Skilled Nursing Facility
9620 FREMONT AVE
MONTCLAIR, CA 91763
San Bernardino County (909) 621-4751

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Daliva, Do Inc's NPI number?

The NPI number for John Daliva, Do Inc is 1710556667. It was assigned to this organization in the NPPES registry on June 23, 2021. The provider is doing business as John Daliva, DO.

Where is John Daliva, Do Inc located?

John Daliva, Do Inc is located at 9620 Fremont Ave, Montclair, CA 91763. The listed phone number is (909) 621-4751.

What is John Daliva, Do Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Addiction Medicine, with taxonomy code 207RA0401X.

When was this NPI record last updated?

The NPPES record for John Daliva, Do Inc was last updated on March 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.