Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Wing C. Hsieh, O.D.
Optometrist in Denver, CO · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891799672
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Registry record
Entity type Individual (Type 1)
Name Dr. Wing C. Hsieh
Credential O.D.
Sex Male
Practice address 777 Bannock St, Denver, CO, 80204
Phone (303) 436-4949
Fax (303) 602-4560
Enumeration date Jun 9, 2005
Last updated in NPPES Feb 11, 2025
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9201419 | Medicaid | SD | - |
| 9201730 | Medicaid | SD | - |
| 10025032100 | Medicaid | NE | - |
| 46044447400 | Medicaid | NE | - |
| 9201415 | Medicaid | SD | - |
| 130025300 | Medicaid | MN | - |
| 9201417 | Medicaid | SD | - |
| 9201418 | Medicaid | SD | - |
| 8280081 | Medicaid | IA | - |
| 6280081 | Medicaid | IA | - |
| 9280081 | Medicaid | IA | - |
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 Wing Hsieh?
The National Provider Identifier (NPI) for Wing Hsieh is 1891799672, a Type 1 (individual) record in the CMS NPPES registry.
Where does Wing Hsieh practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-11.