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Addiction Change Experts (Ace) Medical Inc

Addiction Medicine (Family Medicine) Physician in Sunnyvale, CA · enumerated 2024 · authorized official Eugene Santillano, Ceo/ President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1912738618

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Registry record

Entity type Organization (Type 2)
Legal business name Addiction Change Experts (Ace) Medical Inc
Practice address 1287 Hammerwood Ave, Sunnyvale, CA, 94089
Phone (408) 337-6383
Enumeration date Aug 13, 2024
Last updated in NPPES Oct 24, 2025

Taxonomy & classification

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Eugene Santillano
Title Ceo/ President
Phone (408) 337-6383

Other identifiers

Identifier Type State Issuer
1619967007 Medicaid CA -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Addiction Change Experts (Ace) Medical Inc?
The NPI for Addiction Change Experts (Ace) Medical Inc is 1912738618, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Addiction Change Experts (Ace) Medical Inc?
NPPES lists Eugene Santillano (Ceo/ President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-24.