Medicare Enrolled
Dr. Walter Tsang, MD
Hematology & Oncology · Highland, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Tsang from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Tsang
Dr. Walter Tsang is a hematology & oncology specialist in Highland, CA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Tsang performed 205 Medicare services across 115 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tsang received a total of $21,349 from 75 pharmaceutical and/or device companies across 881 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Tsang is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 16 years in practice
▲ 205 Medicare services
$21,349 industry payments
Medicare Practice Summary
Medicare Utilization ↗205
Medicare services
Bottom 19% in CA for hematology & oncology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
115
Unique beneficiaries
$60
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~13 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
85 | $39 | $122 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
78 | $72 | $195 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
26 | $74 | $195 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
16 | $92 | $241 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$21,349
Total received (2018-2024)
Avg $3,050/year across 7 years
Top 19% in CA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
75
Companies
881
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$17,438 (81.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$2,222 (10.4%)
Other
Charitable contributions, space rental, and other categories
$1,345 (6.3%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$344 (1.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$4,115
2023
$6,394
2022
$4,262
2021
$3,612
2020
$1,048
2019
$1,042
2018
$877
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$563
SOBI, INC
$405
PFIZER INC.
$358
Takeda Pharmaceuticals U.S.A., Inc.
$332
AstraZeneca Pharmaceuticals LP
$215
Lilly USA, LLC
$212
Eisai Inc.
$188
Alexion Pharmaceuticals, Inc.
$162
Gilead Sciences, Inc.
$156
Celgene Corporation
$116
Astellas Pharma US Inc
$104
E.R. Squibb & Sons, L.L.C.
$104
PUMA BIOTECHNOLOGY, INC.
$100
Merck Sharp & Dohme LLC
$89
Genentech USA, Inc.
$85
Blueprint Medicines Corporation
$81
Regeneron Healthcare Solutions, Inc.
$78
Adaptive Biotechnologies Corporation
$67
Aveo Pharmaceuticals, Inc.
$60
BeiGene USA, Inc.
$60
Daiichi Sankyo Inc.
$57
GlaxoSmithKline, LLC.
$56
Bayer Healthcare Pharmaceuticals Inc.
$54
Janssen Biotech, Inc.
$52
ARRAY BIOPHARMA INC
$52
ABBVIE INC.
$49
Karyopharm Therapeutics Inc.
$48
Stemline Therapeutics Inc.
$38
EMD Serono, Inc.
$33
Legend Biotech USA Inc.
$27
Agios Pharmaceuticals, Inc.
$25
Rigel Pharmaceuticals, Inc.
$24
TAIHO ONCOLOGY, INC.
$24
JAZZ PHARMACEUTICALS INC.
$23
Secura Bio, Inc.
$17
Top 3 companies account for 32.2% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$3,072
TAIHO ONCOLOGY, INC.
$2,246
PFIZER INC.
$2,067
E.R. Squibb & Sons, L.L.C.
$895
Takeda Pharmaceuticals U.S.A., Inc.
$889
Celgene Corporation
$762
Astellas Pharma US Inc
$624
Alexion Pharmaceuticals, Inc.
$610
Gilead Sciences, Inc.
$610
AstraZeneca Pharmaceuticals LP
$608
Lilly USA, LLC
$586
SOBI, INC
$505
Amgen Inc.
$491
Janssen Biotech, Inc.
$461
GlaxoSmithKline, LLC.
$457
GENZYME CORPORATION
$414
Eisai Inc.
$361
Ipsen Biopharmaceuticals, Inc
$288
Puma Biotechnology, Inc.
$261
EMD Serono, Inc.
$258
BeiGene USA, Inc.
$256
Merck Sharp & Dohme LLC
$253
Genentech USA, Inc.
$234
PUMA BIOTECHNOLOGY, INC.
$233
Blueprint Medicines Corporation
$211
ARRAY BIOPHARMA INC
$209
Incyte Corporation
$199
Bayer HealthCare Pharmaceuticals Inc.
$197
Seagen Inc.
$188
Pharmacyclics LLC, An AbbVie Company
$179
Myovant Sciences Inc.
$174
NOVARTIS PHARMACEUTICALS CORPORATION
$167
Taiho Oncology, Inc.
$156
Karyopharm Therapeutics Inc.
$154
Bayer Healthcare Pharmaceuticals Inc.
$152
Exelixis Inc.
$145
Boehringer Ingelheim Pharmaceuticals, Inc.
$122
EISAI INC.
$120
Dova Pharmaceuticals
$117
Stemline Therapeutics Inc.
$110
Sobi, Inc
$106
Daiichi Sankyo Inc.
$101
Secura Bio, Inc.
$84
Pharmacyclics LLC, an AbbVie Company
$83
Regeneron Healthcare Solutions, Inc.
$78
AVEO Pharmaceuticals, Inc.
$68
Adaptive Biotechnologies Corporation
$67
Aveo Pharmaceuticals, Inc.
$60
ABBVIE INC.
$49
ADC Therapeutics America, Inc.
$47
Merck Sharp & Dohme Corporation
$40
Epizyme, Inc.,
$38
Global Blood Therapeutics, Inc.
$31
Blue Earth Diagnostics Limited
$29
Apellis Pharmaceuticals, Inc.
$27
Legend Biotech USA Inc.
$27
Sun Pharmaceutical Industries Inc.
$26
Agios Pharmaceuticals, Inc.
$25
AbbVie Inc.
$25
Rigel Pharmaceuticals, Inc.
$24
JAZZ PHARMACEUTICALS INC.
$23
Myriad Genetic Laboratories, Inc.
$22
TG THERAPEUTICS, INC.
$22
ImmunoGen, Inc.
$21
Acrotech Biopharma LLC
$21
Mirati Therapeutics, Inc.
$20
Novocure Inc.
$20
Advanced Accelerator Applications
$18
Sumitomo Pharma America, Inc.
$18
Alnylam Pharmaceuticals Inc.
$17
TG Therapeutics, Inc.
$17
Teva Pharmaceuticals USA, Inc.
$16
INSYS Therapeutics Inc
$16
Emmaus Medical, Inc.
$14
MEDIVATION FIELD SOLUTIONS LLC
$8
Top 3 companies account for 34.6% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AFINITOR · ALUNBRIG · AYVAKIT · Axumin · BALVERSA · BAVENCIO · BENDEKA · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Balversa · CABLIVI · CABOMETYX · CALQUENCE · CARVYKTI · COPIKTRA · CYRAMZA · Cabometyx · DARZALEX · DOPTELET · Doptelet · ELAHERE · ELITEK · EMPLICITI · ENHERTU · ENJAYMO · EPKINLY · ERBITUX · ERLEADA · EXKIVITY · Elahere · Empaveli · Endari · Enhertu · Erleada · FARYDAK · FOTIVDA · Fabhalta · GILOTRIF · GIVLAARI · HEMADY · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · Imbruvica · Itovebi · JADENU · JAKAFI · JEVTANA · KEYTRUDA · KISQALI · KRAZATI · Kyprolis · LIBTAYO · LONSURF · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · MEKINIST · MONJUVI · MYLOTARG · NERLYNX · NINLARO · Nerlynx · Nplate · Nubeqa · OJJAARA · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Optune · Orserdu · PADCEV · PIQRAY · PLUVICTO · PROMACTA · PYRUKYND · Pomalyst · REBLOZYL · RETEVMO · RYBREVANT · Revlimid · Rezlidhia · SARCLISA · SCEMBLIX · SHINGRIX · SOMATULINE DEPOT · SPRYCEL · SUTENT · SYNAGIS · SYNDROS · Stivarga · TABRECTA · TAGRISSO · TAZVERIK · TECENTRIQ · TEPMETKO · TIVDAK · Tazverik · Tecentriq · Trodelvy · UKONIQ · ULTOMIRIS · Ultomiris · VENCLEXTA · VERZENIO · XALKORI · XPOVIO · XTANDI · Xospata · Xtandi · YONSA · ZEJULA · ZEPZELCA · ZYTIGA · clonoSEQ · myRisk
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (82%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
36
Per 100K population
1.6
County median income
$82,184
Nearest hospital
ST BERNARDINE MEDICAL CENTER
5.2 mi
5.2 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Tsang is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 19% of CA peers, with 16 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Tsang experienced with telephone medical discussion, 5-10 minutes?
Based on Medicare claims data, Dr. Tsang performed 85 telephone medical discussion, 5-10 minutes services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Tsang receive payments from pharmaceutical companies?
Yes. Dr. Tsang received a total of $21,349 from 75 companies across 881 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Tsang's costs compare to other hematology & oncology specialists in Highland?
Dr. Tsang's average Medicare payment per service is $60. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Tsang) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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