Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marilyn Thuy Lai, O.D.
Optometrist in Altus Afb, OK · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780831537
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Registry record
Entity type Individual (Type 1)
Name Dr. Marilyn Thuy Lai
Credential O.D.
Sex Female
Practice address 301 N 1st St, Altus Afb, OK, 73523
Phone (580) 481-5239
Enumeration date Aug 23, 2008
Last updated in NPPES Aug 13, 2024
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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 Marilyn Lai practice?
The practice location on file with NPPES is in Altus Afb, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marilyn Lai?
The National Provider Identifier (NPI) for Marilyn Lai is 1780831537, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → 97th Medgrp-Altus Military/U.S. Coast Guard Outpatient Clinic/Center · Altus Afb, OK NPI 1093782880 Altus Phcy 97th Mdg Military/U.S. Coast Guard Pharmacy · Altus Afb, OK NPI 1336246180 Tiffany Brilinski Independent Duty Medical Technicians · Altus Afb, OK NPI 1487883526 Christina Hong Pharmacist · Altus Afb, OK NPI 1528393626 Nguyen Nguyen Pharmacist · Altus Afb, OK NPI 1306174784 Steven Koehl Psychiatry Physician · Altus, OK NPI 1073824421 Alexandra Hernandez Dentist · Altus, OK NPI 1023324241 97th Medgrp-Altus Military/U.S. Coast Guard Pharmacy · Altus Afb, OK NPI 1598177370
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-13.