Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Colin Lee, OD
Optometrist in Greenfield, WI · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720646193
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Colin Lee
Credential OD
Sex Male
Practice address 4300 W Layton Ave Ste 100, Greenfield, WI, 53220
Phone (414) 928-2020
Fax (414) 210-3402
Enumeration date May 31, 2019
Last updated in NPPES Mar 9, 2026
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 |
|---|---|---|---|
| 3879-35 | Other | WI | LICENSED OPTOMETRIST |
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
Is NPI 1720646193 active?
Yes, as of the latest NPPES snapshot, NPI 1720646193 is active (record last updated 2026-03-09).
How do I verify Colin Lee's NPI record?
Cross-check NPI 1720646193 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-09.