NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Roxanne Leung, MD

Allergy Physician in San Jose, CA · enumerated 2007 · practices at Allergy & Asthma Associates of Santa Clara Valley A Medical Corp.

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

National Provider Identifier

1730235334

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Roxanne Leung
Credential MD
Sex Female
Practice address 4050 Moorpark Ave, San Jose, CA, 95117
Phone (408) 243-2700
Enumeration date Jan 26, 2007
Last updated in NPPES Dec 12, 2013

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License A103378 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Roxanne Leung's NPI record?
Cross-check NPI 1730235334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1730235334 active?
Yes, as of the latest NPPES snapshot, NPI 1730235334 is active (record last updated 2013-12-12).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-12.