Dr. Jonathan P. Giannone, M.D.
General Surgery (Surgery Physician)
- Medicare participating
At a glance
- Medical school
- Rush Medical College of Rush University (2008)
- Years since graduation
- 18
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 56
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
- 2008Medical school: Rush Medical College of Rush University
- 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
-
Surgery Physician primary
NY license 275467
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Westchester Medical Center Valhalla, NY
Medical groups
- Surgical Intensivists, PC (4 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
- 56
- Services billed
- 244
- Patients’ average age
- 62
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 96 | 49 |
| Established patient office or other outpatient visit, 30-39 minutes | 57 | 29 |
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 |
|---|---|
| Ozempic (semaglutide) Other prescribers in Hawthorne, NY | 61 |
| Mounjaro (tirzepatide) Other prescribers in Hawthorne, NY | 54 |
| Metformin Hcl Er (metformin hcl) Other prescribers in Hawthorne, NY | 40 |
| Topiramate Other prescribers in Hawthorne, NY | 22 |
| Pantoprazole Sodium Other prescribers in Hawthorne, NY | 12 |
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, 5 companies reported 14 payments worth $522 in total to this clinician.
| Medtronic, Inc. | $247 |
|---|---|
| Novo Nordisk Inc | $148 |
| Lilly USA, LLC | $64.30 |
| Currax Pharmaceuticals LLC | $46.57 |
| W. L. Gore & Associates, Inc. | $16.68 |
| Food and Beverage | $522 |
|---|
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.