Mark Silvert, MD
Specialist
2089 Vale Rd, Suite 25
San Pablo, CA 94806
Who else practices at this address →
Contra Costa County includes mental health (19% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 49
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 412
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
-
Specialist primary
CA license G23121
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Sutter Medical Center, Sacramento Sacramento, CA
- Alta Bates Summit Medical Center Oakland, CA
- Sutter Solano Medical Center Vallejo, CA
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
- 412
- Services billed
- 3,607
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 479 | 285 |
| Established patient office or other outpatient visit, 10-19 minutes | 177 | 126 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 135 | 21 |
| New patient office or other outpatient visit, 45-59 minutes | 84 | 84 |
| Established patient office or other outpatient visit, 30-39 minutes | 70 | 66 |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | 50 | 21 |
| Diagnostic exam of bladder and urethra using an endoscope | 42 | 34 |
| Simple bladder irrigation and/or instillation | 19 | 13 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 18 | 14 |
| Shock wave crushing of kidney stones | 14 | 14 |
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 |
|---|---|
| Tamsulosin Hcl Other prescribers in San PAblo, CA | 416 |
| Oxybutynin Chloride Er (oxybutynin chloride) Other prescribers in San PAblo, CA | 203 |
| Myrbetriq (mirabegron) Other prescribers in San PAblo, CA | 122 |
| Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim) Other prescribers in San PAblo, CA | 115 |
| Bicalutamide | 60 |
| Finasteride Other prescribers in San PAblo, CA | 56 |
| Ciprofloxacin Hcl Other prescribers in San PAblo, CA | 44 |
| Testosterone Cypionate Other prescribers in San PAblo, CA | 38 |
| Testosterone Other prescribers in San PAblo, CA | 23 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in San PAblo, CA | 22 |
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, 10 companies reported 19 payments worth $532 in total to this clinician.
| Teleflex LLC | $118 |
|---|---|
| Janssen Biotech, Inc. | $68.43 |
| AbbVie Inc. | $64.16 |
| Convatec Inc. | $52.76 |
| Ferring Pharmaceuticals Inc. | $50.59 |
| Procept Biorobotics Corporation | $40.00 |
| Dendreon Pharmaceuticals LLC | $38.85 |
| Pfizer Inc. | $37.66 |
| Food and Beverage | $497 |
|---|---|
| Education | $35.06 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| AstraZeneca Pharmaceuticals LP Nov 19, 2025 | Education IMFINZI · Oncology · in-kind Company’s descriptionJournal Article | $35.06 |
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.