Dr. Robert G. Deiss, MD
Internal Medicine (Internal Medicine Physician)
4168 Front St Fl 3
San Diego, CA 92103
Who else practices at this address →
San Diego County includes primary care (1% of residents) and mental health (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of California, San Diego School of Medicine (2007)
- Years since graduation
- 19
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 78
Licensed in California since 2010, 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
- 2007Medical school: University of California, San Diego School of Medicine
- 2008Registered 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
-
Internal Medicine Physician primary
CA license A111310 (first issued 2010; current) -
Infectious Disease Physician
CA license A111310 (first issued 2010; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- UC San Diego Health Hillcrest - Hillcrest Med Ctr San Diego, CA
Medical groups
- Regents of the University of California (2,089 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
- 78
- Services billed
- 202
- Patients’ average age
- 63
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 40-54 minutes | 51 | 24 |
| Established patient office or other outpatient visit, 30-39 minutes | 42 | 22 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 37 | 19 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 16 | 13 |
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 |
|---|---|
| Biktarvy (bictegrav/emtricit/tenofov ala) | 302 |
| Atorvastatin Calcium Other prescribers in San Diego, CA | 109 |
| Gabapentin Other prescribers in San Diego, CA | 74 |
| Lisinopril Other prescribers in San Diego, CA | 61 |
| Omeprazole Other prescribers in San Diego, CA | 59 |
| Trazodone Hcl Other prescribers in San Diego, CA | 54 |
| Amlodipine Besylate Other prescribers in San Diego, CA | 54 |
| Tamsulosin Hcl Other prescribers in San Diego, CA | 43 |
| Dovato (dolutegravir sodium/lamivudine) | 40 |
| Losartan Potassium Other prescribers in San Diego, CA | 40 |
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, 2 companies reported 10 payments worth $192 in total to this clinician.
| Viiv Healthcare Company | $117 |
|---|---|
| Gilead Sciences, Inc. | $75.57 |
| Food and Beverage | $192 |
|---|
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.