Dr. Gregory L. Peterfreund, MD, PHD
Anesthesiology (Anesthesiology Physician)
- Medicare participating
At a glance
- Medical school
- Perelman School of Med at the University of Pennsylvania (2014)
- Years since graduation
- 12
- In the NPI registry since
- 2014
- Medicare patients seen, 2024
- 144
Licensed in California since 2017, 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. What an NPI is
Education and training
- 2014Medical school: Perelman School of Med at the University of Pennsylvania
- 2014Registered with an NPI (national billing number; not a license date)
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
-
Anesthesiology Physician primary
CA license A153364 (first issued 2017; current) · MA license L-259259
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)
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
- 144
- Services billed
- 181
- Patients’ average age
- 69
| Service | Times | Patients |
|---|---|---|
| Critical care, first 30-74 minutes | 105 | 49 |
| Insertion of artery tube for blood sampling or infusion through skin | 30 | 30 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 23 | 19 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 12 | 12 |
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.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $23.11 in total to this clinician.
| Abiomed | $23.11 |
|---|
| Food and Beverage | $23.11 |
|---|
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.