Dr. Robert C. Williams, D.O.
Urology (Urology Physician)
- Medicare participating
At a glance
- Years since graduation
- 27
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 548
Licensed in Texas since 2005, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Urology Physician primary
TX license M0970 (first issued 2005; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Christus Mother Frances Hospital Tyler, TX
- Ut Health East Texas Tyler Regional Hospital Tyler, TX
- Ut Health East Texas Athens Hospital Athens, TX
- University of Texas Health Science Center at Tyler Tyler, TX
- Ut Health East Texas Jacksonville Hospital Jacksonville, TX
Medical groups
- Etmc Physician Group, Inc. (381 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 548
- Services billed
- 1,800
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 485 | 321 |
| Established patient office or other outpatient visit, 20-29 minutes | 285 | 229 |
| Diagnostic exam of bladder and urethra using an endoscope | 179 | 120 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 125 | 22 |
| New patient office or other outpatient visit, 45-59 minutes | 118 | 118 |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 53 | 17 |
| Electronic assessment of bladder emptying | 52 | 46 |
| Injection procedure for imaging of bladder during voiding | 36 | 36 |
| Insertion of device into abdomen with pressure and urine flow rate study | 36 | 36 |
| Complex measurement of pressure of urine flow in bladder with voiding pressure studies | 35 | 35 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Alfuzosin Hcl Er (alfuzosin hcl) Other prescribers in Tyler, TX | 469 |
| Solifenacin Succinate Other prescribers in Tyler, TX | 392 |
| Tamsulosin Hcl Other prescribers in Tyler, TX | 198 |
| Anastrozole Other prescribers in Tyler, TX | 164 |
| Testosterone Cypionate Other prescribers in Tyler, TX | 148 |
| Myrbetriq (mirabegron) Other prescribers in Tyler, TX | 119 |
| Levofloxacin Other prescribers in Tyler, TX | 108 |
| Estradiol Other prescribers in Tyler, TX | 75 |
| Tramadol Hcl Other prescribers in Tyler, TX | 66 |
| Gemtesa (vibegron) Other prescribers in Tyler, TX | 57 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 4 companies reported 18 payments worth $1,502 in total to this clinician.
| Coloplast Corp | $1,289 |
|---|---|
| Femselect Inc. | $119 |
| AbbVie Inc. | $64.80 |
| Ferring Pharmaceuticals Inc. | $29.04 |
| Food and Beverage | $1,226 |
|---|---|
| Travel and Lodging | $276 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Coloplast Corp Nov 6, 2025 | Travel and Lodging Titan · Men's Health · travel to Miami, FL · in-kind | $276 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.