Mazie Tsang, M.D.
NPI 1497161673ActiveIndividual· Internal Medicine, Hematology & Oncology· Scottsdale, AZ
Internal Medicine, Hematology & Oncology (M.D.) in Scottsdale, Arizona, trained at University of Hawaii John A. Burns School of Medicine (class of 2014). In 2024 Medicare paid $2,950,766 for 804 patients, and Part D covered 705 of their prescriptions, 77% of them generic. Tersera Therapeutics LLC was the largest of 4 companies reporting payments in 2025, $9,239 in all, mostly consulting fees.
Overview
| NPI | 1497161673 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 8, 2014 |
| Last updated in NPPES | Oct 14, 2026 |
| Certified by provider | Oct 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 67002 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 804 |
|---|---|
| Services billed | 133,456 across 173 procedure codes |
| Paid by Medicare | $2,950,766 |
Part D prescriptions in 2024
| Prescriptions (claims) | 705 · 974 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $2,100,628 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Mayo Clinic ArizonaScottsdale, AZ · 1,626 clinicians
Hospital affiliations
- Mayo Clinic HospitalPhoenix, AZ
- Verde Valley Medical CenterCottonwood, AZ
Industry payments (Open Payments)
- 2025$9,239 · 10 payments from 4 companies
- 2024$2,381 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tersera Therapeutics LLC | $4,260 | 6 |
| Genentech, Inc. | $3,210 | 1 |
| Genentech USA, Inc. | $1,605 | 1 |
| Astrazeneca Pharmaceuticals LP | $163.98 | 2 |
What the 2025 payments were for
- Consulting Fee$4,815 · 2 payments
- Compensation for serving as faculty or as a speaker for a medical education program$3,000 · 1 payment
- Travel and Lodging$1,094 · 4 payments
- Food and Beverage$329.55 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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