Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Chu, M.D.
Gynecology Physician in Wareham, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821195066
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Gregory Chu
Credential M.D.
Sex Male
Practice address 191 Main St, Suite 2136, Wareham, MA, 02571
Phone (508) 295-5595
Fax (508) 295-7767
Enumeration date Sep 20, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 3000931 | Medicaid | MA | - |
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 the NPI number for Gregory Chu?
The National Provider Identifier (NPI) for Gregory Chu is 1821195066, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Chu practice?
The practice location on file with NPPES is in Wareham, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.