Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David Chiang, M.D
Internal Medicine Physician in Norwell, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124219506
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 042297845 | Other | - | PHCS/MULTI-PLAN |
| 499016 | Other | - | TUFTS HEALTH CARE |
| 9798359 | Other | - | AETNA |
| 042297845 | Other | - | TRICARE |
| 1124219506 | Other | MA | NHP |
| 042297845 | Other | - | UNITED HEALTH CARE |
| 1100836977A | Medicaid | MA | - |
| AA147823 | Other | MA | HARVARD PILGRIM |
| 2134190 | Other | - | CIGNA |
| 499016 | Other | MA | TUFTS AND MEDICARE PREFERRED |
| 1124219506 | Other | - | FALLON |
| 042297845 | Other | - | FIRST HEALTH/COVENTRY |
| J44705 | Other | MA | BCBSMA |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-17.