Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William J Lynass, MD OD
Optometrist in Sterling, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205992260
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Registry record
Entity type Individual (Type 1)
Name William J Lynass
Credential MD OD
Sex Male
Practice address 1510 W Main St, Sterling, CO, 80751
Phone (970) 522-9287
Fax (970) 522-5953
Enumeration date Dec 27, 2006
Last updated in NPPES Jun 23, 2010
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
What specialty is William Lynass?
William Lynass is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → National Vision, Inc. Optometrist · Sterling, CO NPI 1659327690 Walmart Inc. Community/Retail Pharmacy · Sterling, CO NPI 1487671749 Dr. Linda Lipstein, O.D., LLC Optometrist · Sterling, CO NPI 1689850364 Dennis Everhart Pharmacist · Sterling, CO NPI 1083277370 James Mildenberger Pharmacist · Sterling, CO NPI 1376107508 Out There Eyecare LLC Optometrist · Sterling, CO NPI 1598530750 Walmart, Inc. Optician · Sterling, CO NPI 1225804024 Ana Duenez Pharmacist · Sterling, CO NPI 1598613051
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-23.