Dr. Stuart Cohen, M.D.
Infectious Disease (Infectious Disease Physician)
- Medicare participating
At a glance
- Medical school
- R Franklin University of Med & Sci/Chicago Medical School (1978)
- Years since graduation
- 48
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 205
Licensed in California since 1981, 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
- 1978Medical school: R Franklin University of Med & Sci/Chicago Medical School
- 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
-
Infectious Disease Physician primary
CA license G44410 (first issued 1981; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of California Davis Medical Center Sacramento, CA
Medical groups
- Regents of the Univ of Ca (1,584 clinicians)
- Cares Community Health (46 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
- 205
- Services billed
- 499
- Patients’ average age
- 68
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 197 | 106 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 107 | 43 |
| Established patient office or other outpatient visit, 20-29 minutes | 60 | 48 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 30 | 30 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 24 | 16 |
| New patient office or other outpatient visit, 45-59 minutes | 21 | 21 |
| New patient office or other outpatient visit, 30-44 minutes | 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 |
|---|---|
| Atorvastatin Calcium Other prescribers in Sacramento, CA | 146 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Sacramento, CA | 145 |
| Biktarvy (bictegrav/emtricit/tenofov ala) | 141 |
| Triumeq (abacavir/dolutegravir/lamivudi) | 116 |
| Lisinopril Other prescribers in Sacramento, CA | 100 |
| Gabapentin Other prescribers in Sacramento, CA | 88 |
| Descovy (emtricitabine/tenofov alafenam) | 87 |
| Odefsey (emtricitab/rilpiviri/tenof ala) | 54 |
| Genvoya (elviteg/cob/emtri/tenof alafen) | 53 |
| Hydrochlorothiazide Other prescribers in Sacramento, CA | 51 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 2 companies. The companies reported $472,103 in research payments for these studies, mostly to the institutions running them.
- A Study of Vaccination With 9valent Extraintestinal Pathogenic Escherichia Coli Vaccine ExPEC9V in the Prevention of Invasive Extraintestinal Pathogenic Escherichia Coli Disease in Adults Aged 60 Years And Older With …
Janssen Research & Development, LLC - An Observational Study in Adults with Clostridioides difficile Infection to Determine the Feasibility and Logistics of Biospecimen Collection Transportation and Testing at Select US Study Sites
AstraZeneca Pharmaceuticals LP
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.