Dr. Michael S. Karbasi, M.D.
Emergency Medicine (Emergency Medicine Physician)
250 E Dunlap Ave
Phoenix, AZ 85020
Who else practices at this address →
Maricopa County includes primary care (13% of residents) and dental (0% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Arizona College of Medicine (2013)
- Years since graduation
- 13
- In the NPI registry since
- 2013
- Medicare patients seen, 2024
- 319
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
- 2013Medical school: University of Arizona College of Medicine
- 2013Registered 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
-
Emergency Medicine Physician primary
AZ license 52201
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Honor Health John C. Lincoln Medical Center Phoenix, AZ
- Honorhealth Deer Valley Medical Center Phoenix, AZ
- Honorhealth Sonoran Crossing Medical Center Phoenix, AZ
Medical groups
- Honorhealth (68 clinicians)
- Loop 101 Emergency Physicians LLC (53 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
- 319
- Services billed
- 483
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Emergency department visit with high level of medical decision making | 214 | 214 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 135 | 123 |
| Critical care, first 30-74 minutes | 44 | 44 |
| Emergency department visit with moderate level of medical decision making | 28 | 28 |
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 |
|---|---|
| Cephalexin Other prescribers in Phoenix, AZ | 20 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Phoenix, AZ | 18 |
| Amoxicillin-Clavulanate Potass (amoxicillin/potassium clav) Other prescribers in Phoenix, AZ | 14 |
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, 1 companies reported 1 payments worth $132 in total to this clinician.
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $132 |
|---|
| Food and Beverage | $132 |
|---|
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.