Quick answers
- Does Catherine P. Chen Tsai accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine P. Chen Tsai 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 Catherine P. Chen Tsai see?
- In 2024, CMS data shows 871 Original Medicare patients and 5,397 services for Catherine P. Chen Tsai. This counts Original Medicare only and measures volume, not quality.
- What is Catherine P. Chen Tsai's NPI number?
- 1417054198. 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 Catherine P. Chen Tsai, 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 | 871 |
|---|---|
| Services billed to Medicare | 5,397 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)2,335 services
- Destruction of precancer skin growth, 1 growth (17000)706 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)659 services
- Biopsy of related skin growth, first growth (11102)391 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)329 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 cholesterol75%
- High blood pressure70%
- Arthritis48%
- Ischemic heart disease27%
- Diabetes24%
- Chronic kidney disease24%
Practice locations
Addresses where Catherine P. Chen Tsai is enrolled with Medicare (CMS data updated October 2, 2026).
- 10460 N 92nd St, Suite 101Scottsdale, AZ 85258 (480) 278‑8300
- 7337 E 2nd StScottsdale, AZ 85251 (480) 278‑8300
Group practices
Medicare enrollment lists Catherine P. Chen Tsai as a member of this group (CMS data updated October 2, 2026).
- Arizona Center for Hematology and Oncology PLC61 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in Arizona Center for Hematology and Oncology PLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417054198 |
| 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