Dr. Celina Ang
Medical Oncology (Medical Oncology Physician)
- Medicare participating
At a glance
- Years since graduation
- 21
- In the NPI registry since
- 2011
- Medicare patients seen, 2024
- 104
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
- 2011Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Medical Oncology Physician primary
NY license 273264
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
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
- 104
- Services billed
- 382
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 40-54 minutes | 169 | 41 |
| Established patient office or other outpatient visit, 30-39 minutes | 80 | 42 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 24 |
| Established patient office or other outpatient visit, 20-29 minutes | 22 | 15 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 19 | 12 |
| New patient office or other outpatient visit, 60-74 minutes | 13 | 13 |
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 |
|---|---|
| Eliquis (apixaban) Other prescribers in New York, NY | 20 |
| Creon (lipase/protease/amylase) Other prescribers in New York, NY | 17 |
| Prochlorperazine Maleate Other prescribers in New York, NY | 17 |
| Pantoprazole Sodium Other prescribers in New York, NY | 13 |
| Potassium Chloride Other prescribers in New York, NY | 13 |
| Pemazyre (pemigatinib) | 11 |
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, 10 companies reported 20 payments worth $675 in total to this clinician.
| Bayer HealthCare Pharmaceuticals Inc. | $158 |
|---|---|
| AstraZeneca Pharmaceuticals LP | $130 |
| Beone Medicines USA, Inc. | $105 |
| Daiichi Sankyo Inc. | $55.68 |
| Genentech, Inc. | $53.45 |
| Stemline Therapeutics Inc. | $52.46 |
| Merck Sharp & Dohme LLC | $42.65 |
| GlaxoSmithKline, LLC. | $31.26 |
| Food and Beverage | $621 |
|---|---|
| Education | $53.45 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Genentech, Inc. Sep 29, 2025 | Education in-kind | $53.45 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.