Dr. Benjamin I. Chung, M.D.
Urology (Urology Physician)
300 Pasteur Dr
Stanford, CA 94305
Who else practices at this address →
Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Jefferson Medical College of Thomas Jefferson University (1999)
- Years since graduation
- 27
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 386
Licensed in California since 2006, according to the Medical Board of California. 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
- 1999Medical school: Jefferson Medical College of Thomas Jefferson University
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
CA license A95419 (first issued 2006; current) -
Surgery Physician
CA license A95419 (first issued 2006; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Stanford Health Care Stanford, CA
- Stanford Health Care Tri-Valley Pleasanton, CA
Medical groups
- Stanford Health Care (3,122 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
- 386
- Services billed
- 605
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 170 | 134 |
| New patient office or other outpatient visit, 45-59 minutes | 92 | 92 |
| Diagnostic exam of bladder and urethra using an endoscope | 47 | 40 |
| Established patient office or other outpatient visit, 30-39 minutes | 42 | 38 |
| New patient office or other outpatient visit, 30-44 minutes | 31 | 31 |
| Surgical removal of prostate and surrounding lymph nodes using an endoscope | 23 | 23 |
| Removal of lymph nodes of both sides of pelvis using an endoscope | 23 | 23 |
| Established patient office or other outpatient visit, 10-19 minutes | 22 | 22 |
| Insertion of stent in ureter using an endoscope | 19 | 17 |
| Removal of kidney and lymph nodes using an endoscope | 15 | 15 |
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 Stanford, CA | 20 |
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, 6 companies reported 25 payments worth $8,225 in total to this clinician.
| Ethicon US, LLC | $4,030 |
|---|---|
| Intuitive Surgical, Inc. | $1,459 |
| Ethicon Inc. | $1,349 |
| Medtronic, Inc. | $1,301 |
| Caris Mpi, Inc. | $68.72 |
| Ambu Inc. | $17.76 |
| Consulting Fee | $5,198 |
|---|---|
| Travel and Lodging | $1,718 |
| Food and Beverage | $1,309 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Ethicon US, LLC Oct 13, 2025 | Consulting Fee | $3,863 |
| Ethicon Inc. Jan 31, 2025 | Consulting Fee | $1,336 |
| Intuitive Surgical, Inc. Feb 14, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ORLANDO, FL · in-kind | $849 |
| Medtronic, Inc. Jan 15, 2025 | Travel and Lodging SIGNIA · Surgical Stapling · travel to Lafayette, CO · in-kind | $532 |
| Medtronic, Inc. Jan 27, 2025 | Travel and Lodging SIGNIA · Surgical Stapling · travel to Lafayette, CO · in-kind | $172 |
| Intuitive Surgical, Inc. Feb 14, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ORLANDO, FL · in-kind | $63.00 |
| Intuitive Surgical, Inc. Feb 14, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ORLANDO, FL · in-kind | $37.00 |
| Medtronic, Inc. Jan 15, 2025 | Travel and Lodging SIGNIA · Surgical Stapling · travel to Lafayette, CO · in-kind | $35.07 |
| Medtronic, Inc. Jan 27, 2025 | Travel and Lodging SIGNIA · Surgical Stapling · travel to Lafayette, CO · in-kind | $16.79 |
| Ethicon Inc. Jan 31, 2025 | Travel and Lodging travel to STANFORD, CA | $13.49 |
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.