Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Joanne Ma, HEARING AID DISPENSE

Q: What is the NPI number for Joanne Ma?

The National Provider Identifier (NPI) for Joanne Ma is 1366508111, a Type 1 (individual) record in the CMS NPPES registry.

Hearing Instrument Specialist in Los Angeles, CA · enumerated 2006.

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

National Provider Identifier

1366508111

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Registry record

Entity type Individual (Type 1)

Name Mrs. Joanne Ma

Credential HEARING AID DISPENSE

Sex Female

Practice address 1058 S Vermont Ave # 101, Los Angeles, CA, 90006

Phone (213) 368-6300

Fax (213) 368-6303

Enumeration date Dec 28, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License HA1380 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
HA0013800	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Joanne Ma practice?

The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Joanne Ma?

The National Provider Identifier (NPI) for Joanne Ma is 1366508111, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.