Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gary Yiu-Kin Chu, OD MPH
Optometrist in Boston, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891794723
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Registry record
Entity type Individual (Type 1)
Name Dr. Gary Yiu-Kin Chu
Credential OD MPH
Sex Male
Practice address 930 Commonwealth Ave, Suite 2a New England Eye Institute, Boston, MA, 02215
Phone (617) 262-2020
Fax (617) 236-6323
Enumeration date Jul 21, 2005
Last updated in NPPES May 1, 2015
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 324361 | 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
Where does Gary Chu practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gary Chu?
The National Provider Identifier (NPI) for Gary Chu is 1891794723, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Jason Chin Optometrist · Boston, MA NPI 1184624082 Marjorie Rah Optometrist · Boston, MA NPI 1639178569 Constance Lee Optometrist · Boston, MA NPI 1912907429 Richard Laudon Optometrist · Boston, MA NPI 1831199116 Bruce Moore Optometrist · Boston, MA NPI 1831191279 New England Eye Institute Inc. Optometrist · Boston, MA NPI 1487607388 Richard Ress Cardiovascular Disease Physician · Boston, MA NPI 1265472799 Guangli Xu Acupuncturist · Boston, MA NPI 1508937806
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-01.