Mazie Tsang, M.D.
NPI 1497161673 · Hematology & Oncology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mazie Tsang, M.D. is a Hematology & Oncology Physician provider in Scottsdale, AZ (NPI 1497161673).
Provider details
- NPI number
- 1497161673
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 59601 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,586 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Additional New Drug Or Substance Into Vein96375 | 475 | $15 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 345 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 149 | $173 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 141 | $26 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 136 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 135 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 140 | 39 |
| Zanubrutinibbrand: Brukinsa | 90 | 11 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 42 | 16 |
| Ondansetron Hcl | 40 | 20 |
| Prednisone | 37 | — |
| Prochlorperazine Maleate | 33 | 22 |
| Venetoclaxbrand: Venclexta | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,381 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 200 1st St SwRochester, MN 55905-0001Phone: (507) 284-2511
Registry dates
- Enumerated
- 2014-07-08
- Last updated
- 2022-09-09
- Certified
- 2022-09-09
Frequently asked questions
- What is Mazie Tsang's NPI number?
- Mazie Tsang's National Provider Identifier (NPI) is 1497161673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mazie Tsang's specialty?
- Mazie Tsang is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mazie Tsang located?
- Mazie Tsang's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5452.
- What is Mazie Tsang's phone number?
- The practice phone number listed in the NPPES registry for Mazie Tsang is (480) 301-8000.
- Does Mazie Tsang accept Medicare?
- Mazie Tsang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mazie Tsang's NPI active?
- Yes — Mazie Tsang's NPI (1497161673) is active in the NPPES registry as of the last update on 2022-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.