Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Harold E Quan M D Inc
Cardiovascular Disease Physician in Newhall, CA · enumerated 2006 · authorized official Carol Quan, Office Manager.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1730290958
See something wrong? Report a correction
Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| W12999 | Other | CA | MEDICARE PTAN |
| ZZZ57676Z | Other | - | BLUE SHIELD |
| 00A341820 | Medicaid | CA | - |
| DN5809 | Other | - | RAILROAD MEDICARE GROUP NUMBER |
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
What is a Type 2 NPI?
What type of organization is Harold E Quan M D Inc?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-06.