Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ian Tsang
Psychologist in San Jose, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912472580
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Registry record
Entity type Individual (Type 1)
Name Ian Tsang
Sex Male
Practice address 5755 Cottle Rd Bldg 24, San Jose, CA, 95123
Phone (612) 707-5576
Enumeration date Oct 9, 2018
Last updated in NPPES Dec 18, 2025
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY35443 (CA) Primary
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.
Frequently asked questions
How do I verify Ian Tsang's NPI record?
Cross-check NPI 1912472580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1912472580 active?
Yes, as of the latest NPPES snapshot, NPI 1912472580 is active (record last updated 2025-12-18).
Other providers at this practice address
Browse all → Aiko Matsumura Marriage & Family Therapist · San Jose, CA NPI 1851683379 Honor Hsin Psychiatry Physician · San Jose, CA NPI 1245596329 Shravya Raghunand Clinical Social Worker · San Jose, CA NPI 1265858203 Robert Enoch Clinical Psychologist · San Jose, CA NPI 1740632223 Goutham Ganesan Psychiatry Physician · San Jose, CA NPI 1467987677 Ken Perez Psychologist · San Jose, CA NPI 1629545348 Patricia Geronimo Marriage & Family Therapist · San Jose, CA NPI 1245838556 Lindsey White Counseling Psychologist · San Jose, CA NPI 1407582513
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-18.