Quick answers
- Does Janice Y. Chyou accept Medicare assignment?
- Yes. Medicare's clinician data says Janice Y. Chyou accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Janice Y. Chyou see?
- In 2024, CMS data shows 78 Original Medicare patients and 819 services for Janice Y. Chyou. This counts Original Medicare only and measures volume, not quality.
- What is Janice Y. Chyou's NPI number?
- 1720246424. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Janice Y. Chyou, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 78 |
|---|---|
| Services billed to Medicare | 819 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)229 services
- Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)173 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)95 services
- Programming of cardiac rhythm monitor system (93285)71 services
- Ultrasound of heart, follow-up (93308)34 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation40%
- Arthritis38%
- Chronic kidney disease29%
- Diabetes24%
Practice locations
Addresses where Janice Y. Chyou is enrolled with Medicare (CMS data updated October 2, 2026).
- 281 1st AveNew York, NY 10003 (212) 420‑2000
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720246424 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians