Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Steven C Tillman, O.D.
Optometrist in Westminster, CO · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1417947458
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Registry record
Entity type Individual (Type 1)
Name Dr. Steven C Tillman
Credential O.D.
Sex Male
Practice address 11245 Huron St, Westminster, CO, 80234
Phone (303) 338-4545
Enumeration date Oct 21, 2005
Last updated in NPPES May 28, 2021
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 |
|---|---|---|---|
| 025166 | Other | CO | KAISER COMMERCIAL NUMBER |
| 11885378 | Medicaid | CO | - |
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 Steven Tillman?
Steven Tillman 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 → Christopher Fellenz Family Medicine Physician · Westminster, CO NPI 1972591329 Teresa Jarmul Family Medicine Physician · Westminster, CO NPI 1689658320 Sonja Nazareth Obstetrics & Gynecology Physician · Westminster, CO NPI 1861470411 Jeffrey Peters Optometrist · Westminster, CO NPI 1891759973 Steven Ray Family Medicine Physician · Westminster, CO NPI 1215992037 James Summers Obstetrics & Gynecology Physician · Westminster, CO NPI 1306879333 Jill Manning Obstetrics & Gynecology Nurse Practitioner · Westminster, CO NPI 1386663995 Kaiser Foundation Health Plan of Colorado Multi-Specialty Clinic/Center · Westminster, CO NPI 1821102039
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-28.