Dr. Robert Clay Williams, D.O.
Dr. Robert Clay Williams is a Urology Physician provider (Urology) practicing in Tyler, TX, registered in the NPPES registry with NPI 1144269697 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1144269697 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Robert Clay Williams |
| Credential | D.O. |
| Sex | Male |
| Practice address | 700 OLYMPIC PLAZA CIR, STE 700, Tyler, TX, 75701 |
| Phone | 9032623900 |
| Fax | 9032623993 |
| Enumeration date | 2006-06-06 |
| Last updated in NPPES | 2013-08-14 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208800000X | Urology Physician | Primary | M0970 | TX |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 173429501 | Medicaid | TX | — |
Copy-ready billing details
Provider: Robert Williams, D.O. NPI: 1144269697 Taxonomy: 208800000X (Urology Physician) Address: 700 OLYMPIC PLAZA CIR, STE 700, Tyler, TX, 75701
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1033112933 | Robert Sutherland | Individual | Pain Medicine (Anesthesiology) Physician | Tyler, TX |
| 1447253356 | Paul Detwiler | Individual | Neurological Surgery Physician | Tyler, TX |
| 1568465474 | Thomas Grahm | Individual | Neurological Surgery Physician | Tyler, TX |
| 1003819913 | Mark Renfro | Individual | Neurological Surgery Physician | Tyler, TX |
| 1831192277 | Scott Lamb | Individual | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Tyler, TX |
| 1679572614 | Yvonne Baum | Individual | Internal Medicine Physician | Tyler, TX |
| 1508868001 | Silas Duncan | Individual | Vascular Surgery Physician | Tyler, TX |
| 1760478689 | Elias Fanous | Individual | Gastroenterology Physician | Tyler, TX |
Verify this record
Cross-check NPI 1144269697 against the authoritative CMS record: view Dr. Robert Clay Williams on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-08-14.