NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joanne Helen Wang, MD

Orthopaedic Hand Surgery Physician in Simi Valley, CA · enumerated 2015.

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

National Provider Identifier

1255727285

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joanne Helen Wang
Credential MD
Sex Female
Practice address 2525 Erringer Rd, Simi Valley, CA, 93065
Phone (805) 527-1404
Fax (805) 527-5246
Enumeration date Apr 7, 2015
Last updated in NPPES Jan 20, 2026

Taxonomy & licenses

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License A174739 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
A174739 Other CA STATE LICENSE

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

Where does Joanne Wang practice?
The practice location on file with NPPES is in Simi Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joanne Wang?
The National Provider Identifier (NPI) for Joanne Wang is 1255727285, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-20.