Dr. Weiwei Chi, MD
Rheumatology (Rheumatology Physician)
- Medicare participating
At a glance
- Medical school
- Icahn School of Medicine at Mount Sinai (2013)
- Years since graduation
- 13
- In the NPI registry since
- 2013
- Medicare patients seen, 2024
- 125
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: Icahn School of Medicine at Mount Sinai
- 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
-
Rheumatology Physician primary
NY license 277803
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mount Sinai Hospital New York, NY
- Mount Sinai Beth Israel New York, NY
Medical groups
- Icahn School of Medicine at Mount Sinai (2,843 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
- 125
- Services billed
- 327
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 155 | 87 |
| Established patient office or other outpatient visit, 20-29 minutes | 46 | 36 |
| New patient office or other outpatient visit, 45-59 minutes | 20 | 20 |
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
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, 6 companies reported 33 payments worth $609 in total to this clinician.
| Amgen Inc. | $245 |
|---|---|
| GlaxoSmithKline, LLC. | $138 |
| Lilly USA, LLC | $71.75 |
| AbbVie Inc. | $71.66 |
| Ani Pharmaceuticals, Inc. | $45.47 |
| Aurinia Pharma U.S., Inc. | $36.81 |
| Food and Beverage | $609 |
|---|
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.