Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lucas A Cook
Optometrist in Waterloo, IA · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639582901
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Registry record
Entity type Individual (Type 1)
Name Lucas A Cook
Sex Male
Practice address 909 E San Marnan Dr, Waterloo, IA, 50702
Phone (319) 233-2020
Fax (319) 234-1939
Enumeration date Jun 4, 2014
Last updated in NPPES Feb 4, 2022
Taxonomy & licenses
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 1639582901 active?
Yes, as of the latest NPPES snapshot, NPI 1639582901 is active (record last updated 2022-02-04).
How do I verify Lucas Cook's NPI record?
Cross-check NPI 1639582901 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 → Suzanne Smith Optometrist · Waterloo, IA NPI 1740234376 Cedar Valley Medical Specialists PC Durable Medical Equipment & Medical Supplies · Waterloo, IA NPI 1568417293 Thomas Petrie Ophthalmology Physician · Waterloo, IA NPI 1497075642 Staci Boon Optometrist · Waterloo, IA NPI 1013261510 Matthew Krewer Optometrist · Waterloo, IA NPI 1003269721 Northeast Iowa Optical, LLC Ophthalmology Physician · Waterloo, IA NPI 1083548853 Northeast Iowa Eye, Pllc Ophthalmology Physician · Waterloo, IA NPI 1598699373
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-04.