Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Benjamin Weizer Chang

Nurse Practitioner in Fremont, CA · enumerated 2015.

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

National Provider Identifier

1952780652

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Registry record

Entity type Individual (Type 1)

Name Benjamin Weizer Chang

Sex Male

Practice address 39180 Farwell Dr, Fremont, CA, 94538

Phone (510) 585-2545

Enumeration date May 27, 2015

Last updated in NPPES May 27, 2015

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95002080 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95002080 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Benjamin Chang's NPI record?

Cross-check NPI 1952780652 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952780652 active?

Yes, as of the latest NPPES snapshot, NPI 1952780652 is active (record last updated 2015-05-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-27.