Medicare Enrolled
Dr. Wilson Tong, M.D.
Hematology & Oncology · Antioch, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Tong 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 →
Are you Dr. Tong?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Tong
Dr. Wilson Tong is a hematology & oncology specialist in Antioch, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Tong performed 52,494 Medicare services across 1,859 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tong received a total of $20,805 from 93 pharmaceutical and/or device companies across 927 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. Tong 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.
✓ 18 years in practice
▲ Top 14% volume in CA
$20,805 industry payments
Medicare Practice Summary
Medicare Utilization ↗52,494
Medicare services
Top 14% in CA for hematology & oncology
1,859
Unique beneficiaries
$11
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~2,916 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 |
|---|---|---|---|
| Iron infusion (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
25,500 | $0 | $8 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
10,350 | $0 | $2 |
| Denosumab injection (Prolia/Xgeva) | 8,520 | $18 | $65 |
| Epoetin alfa injection (Retacrit) for anemia An injection of a biosimilar form of epoetin alfa used for non-end-stage renal disease purposes. The dose administered is 1000 units. |
1,980 | $6 | $29 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
844 | $8 | $31 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
780 | $0 | $7 |
| Anti-nausea injection (Aloxi/palonosetron) | 740 | $1 | $103 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
691 | $8 | $16 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
410 | $113 | $352 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
370 | $14 | $81 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
267 | $30 | $139 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
235 | $166 | $463 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
214 | $136 | $642 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
202 | $6 | $401 |
| 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. |
184 | $75 | $253 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
101 | $70 | $182 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
95 | $29 | $144 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
92 | $1 | $8 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
89 | $64 | $292 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
86 | $181 | $917 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
85 | $337 | $1,371 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
78 | $85 | $365 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
69 | $1,740 | $6,776 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
69 | $20 | $86 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 68 | $288 | $1,138 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
55 | $47 | $259 |
| New patient office visit, complex (60-74 min) | 49 | $182 | $622 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
44 | $3 | $15 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
43 | $76 | $213 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
41 | $37 | $229 |
| Irrigation of implanted venous access device This procedure involves flushing an implanted venous access device to clear blockages or maintain patency. It ensures the device remains functional for delivering medications or fluids. |
34 | $27 | $110 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
29 | $153 | $445 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
25 | $118 | $346 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
22 | $150 | $541 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
17 | $108 | $239 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
16 | $128 | $759 |
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.
49.8% high complexity
44.7% medium
5.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$20,805
Total received (2018-2024)
Avg $2,972/year across 7 years
Top 20% in CA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
93
Companies
927
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
$18,719 (90.0%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$2,086 (10.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$4,679
2023
$3,404
2022
$3,298
2021
$2,588
2020
$1,206
2019
$3,703
2018
$1,926
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
PFIZER INC.
$471
AstraZeneca Pharmaceuticals LP
$456
Merck Sharp & Dohme LLC
$407
Janssen Biotech, Inc.
$399
Novartis Pharmaceuticals Corporation
$195
Celgene Corporation
$168
Genentech USA, Inc.
$154
Lilly USA, LLC
$146
Eisai Inc.
$139
SpringWorks Therapeutics, Inc.
$138
E.R. Squibb & Sons, L.L.C.
$117
Acera Surgical, Inc.
$111
GENZYME CORPORATION
$108
Boehringer Ingelheim Pharmaceuticals, Inc.
$96
ARRAY BIOPHARMA INC
$89
Takeda Pharmaceuticals U.S.A., Inc.
$85
GlaxoSmithKline, LLC.
$85
JAZZ PHARMACEUTICALS INC.
$75
Aveo Pharmaceuticals, Inc.
$71
Incyte Corporation
$69
BeiGene USA, Inc.
$66
Pharmacosmos Therapeutics Inc.
$65
Alexion Pharmaceuticals, Inc.
$63
Astellas Pharma US Inc
$59
Daiichi Sankyo Inc.
$54
Stemline Therapeutics Inc.
$53
ABBVIE INC.
$52
Rigel Pharmaceuticals, Inc.
$51
EMD Serono, Inc.
$50
Genmab U.S., Inc.
$50
Kyowa Kirin, Inc.
$48
TerSera Therapeutics LLC
$43
Exelixis Inc.
$34
SUN PHARMACEUTICAL INDUSTRIES INC.
$33
PUMA BIOTECHNOLOGY, INC.
$30
Fresenius Kabi USA, LLC
$28
Karyopharm Therapeutics Inc.
$28
Regeneron Healthcare Solutions, Inc.
$28
Mirati Therapeutics, Inc.
$28
Ipsen Biopharmaceuticals, Inc
$25
Acrotech Biopharma Inc.
$25
Agios Pharmaceuticals, Inc.
$24
INTUITIVE SURGICAL, INC.
$23
SERVIER PHARMACEUTICALS LLC
$21
Coherus Biosciences Inc.
$21
ACCORD HEALTHCARE, INC.
$21
Apellis Pharmaceuticals, Inc.
$20
Gilead Sciences, Inc.
$16
Teva Pharmaceuticals USA, Inc.
$15
Invivyd Inc
$15
Kite Pharma, Inc.
$13
Top 3 companies account for 28.5% of 2024 payments
All-time payments by company (2018-2024) ›
Seattle Genetics, Inc.
$1,671
Janssen Biotech, Inc.
$1,321
PFIZER INC.
$1,132
Novartis Pharmaceuticals Corporation
$1,063
AstraZeneca Pharmaceuticals LP
$1,019
Celgene Corporation
$1,017
E.R. Squibb & Sons, L.L.C.
$995
Merck Sharp & Dohme LLC
$835
Astellas Pharma US Inc
$803
Genentech USA, Inc.
$768
Amgen Inc.
$732
Kite Pharma, Inc.
$707
Lilly USA, LLC
$627
Merck Sharp & Dohme Corporation
$524
Seagen Inc.
$524
Takeda Pharmaceuticals U.S.A., Inc.
$429
Eisai Inc.
$410
GENZYME CORPORATION
$392
Daiichi Sankyo Inc.
$301
Boehringer Ingelheim Pharmaceuticals, Inc.
$299
Pharmacyclics LLC, An AbbVie Company
$279
BeiGene USA, Inc.
$196
JAZZ PHARMACEUTICALS INC.
$194
ARRAY BIOPHARMA INC
$174
ADC Therapeutics America, Inc.
$172
GlaxoSmithKline, LLC.
$166
Ethicon Inc.
$159
Dendreon Pharmaceuticals LLC
$150
Myovant Sciences Inc.
$149
Incyte Corporation
$149
Gilead Sciences, Inc.
$141
SpringWorks Therapeutics, Inc.
$138
Exelixis Inc.
$136
Rigel Pharmaceuticals, Inc.
$136
Kyowa Kirin, Inc.
$134
Pharmacosmos Therapeutics Inc.
$125
TESARO, Inc.
$123
Mirati Therapeutics, Inc.
$111
Acera Surgical, Inc.
$111
Acrotech Biopharma LLC
$107
CTI BioPharma Corp.
$96
Taiho Oncology, Inc.
$93
Epizyme, Inc.,
$92
Regeneron Healthcare Solutions, Inc.
$83
Sobi, Inc
$78
Aveo Pharmaceuticals, Inc.
$71
EMD Serono, Inc.
$70
Janssen Pharmaceuticals, Inc
$70
ACCORD HEALTHCARE, INC.
$66
Bayer HealthCare Pharmaceuticals Inc.
$63
Alexion Pharmaceuticals, Inc.
$63
TerSera Therapeutics LLC
$62
SOBI, INC
$58
Karyopharm Therapeutics Inc.
$56
Puma Biotechnology, Inc.
$55
Global Blood Therapeutics, Inc.
$55
Stemline Therapeutics Inc.
$53
ABBVIE INC.
$52
Genmab U.S., Inc.
$50
EISAI INC.
$49
TAIHO ONCOLOGY, INC.
$44
RedHill Biopharma Inc.
$42
Genentech, Inc.
$40
SERVIER PHARMACEUTICALS LLC
$40
AVEO Pharmaceuticals, Inc.
$38
SUN PHARMACEUTICAL INDUSTRIES INC.
$33
Foundation Medicine, Inc.
$33
Bayer Healthcare Pharmaceuticals Inc.
$31
Octapharma USA, Inc.
$30
PUMA BIOTECHNOLOGY, INC.
$30
Fresenius Kabi USA, LLC
$28
AbbVie Inc.
$28
Lexicon Pharmaceuticals, Inc.
$27
Sumitomo Pharma America, Inc.
$27
Ipsen Biopharmaceuticals, Inc
$25
Acrotech Biopharma Inc.
$25
Agios Pharmaceuticals, Inc.
$24
Myriad Genetic Laboratories, Inc.
$24
ImmunoGen, Inc.
$24
Tactile Systems Technology Inc
$23
Organon LLC
$23
INTUITIVE SURGICAL, INC.
$23
Coherus Biosciences Inc.
$21
Apellis Pharmaceuticals, Inc.
$20
Davol Inc.
$18
Array BioPharma Inc.
$18
PharmaEssentia USA Corporation
$18
EUSA Pharma (US) LLC
$18
AMAG Pharmaceuticals, Inc.
$18
Helsinn Therapeutics (U.S.), Inc.
$15
Teva Pharmaceuticals USA, Inc.
$15
Invivyd Inc
$15
Clovis Oncology, Inc.
$12
Top 3 companies account for 19.8% of all-time payments
Associated products mentioned in payments ›
ADAKVEO · ADCETRIS · AFINITOR · AKEEGA · AKYNZEO · ALIMTA · ALUNBRIG · Abraxane · Aemcolo · Alecensa · Avastin · BELEODAQ · BESREMI · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Balversa · Blincyto · Braftovi · CABOMETYX · CALQUENCE · CAMCEVI · CARVYKTI · COSELA · CRESEMBA · CYRAMZA · Cabometyx · DARZALEX · DOPTELET · Da Vinci Surgical System · Doptelet · ELAHERE · ELIQUIS · ELREXFIO · EMPLICITI · ENHERTU · ERBITUX · ERLEADA · EVENITY · Elahere · Empaveli · Enhertu · Epkinly · Erleada · FERAHEME · FOTIVDA · FOUNDATIONONE · FRUZAQLA · Fabhalta · Flexitouch Plus · GAZYVA · GILOTRIF · Halaven · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · Imbruvica · JADENU · JAKAFI · JEMPERLI · JEVTANA · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · Kyprolis · LIBTAYO · LONSURF · LORBRENA · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · Lunsumio · MEKINIST · MONJUVI · MONOFERRIC · MYLOTARG · N/A · NINLARO · Neulasta · Nplate · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OGSIVEO · OJJAARA · ONTRUZANT · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Onivyde · Orserdu · PADCEV · PEMGARDA · PIQRAY · POTELIGEO · PRECISETUMOR · PROMACTA · PROVENGE · Padcev · Perjeta · Pomalyst · Poteligeo · REBLOZYL · RETEVMO · RYBREVANT · RYDAPT · Restrata Wound Matrix · Revlimid · Rezlidhia · Rubraca · SANDOSTATIN · SARCLISA · SCEMBLIX · SUTENT · Stimufend · Stivarga · Sylvant · TABRECTA · TAGRISSO · TASIGNA · TAZVERIK · TECENTRIQ · TECVAYLI · TIBSOVO · TUKYSA · Tavalisse · Tecentriq · Tibsovo · Trodelvy · Truxima · ULTOMIRIS · Udenyca · VENCLEXTA · VENTRALIGHT · VERZENIO · VYXEOS · Venclexta · Vitrakvi · Vonjo · Vyloy · XALKORI · XARELTO · XOSPATA · XPOVIO · XTANDI · Xermelo · Xospata · Xtandi · YONSA · Yescarta · ZEJULA · ZEPZELCA · ZYTIGA · Zoladex
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 (90%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
52
Per 100K population
4.5
County median income
$125,727
Nearest hospital
KAISER FOUNDATION HOSPITAL - ANTIOCH
0.0 mi
0.0 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. Tong is a mixed practice specialist, with above-average Medicare volume (top 14% in CA), with low-engagement industry engagement in the top 20% of CA peers, with 18 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. Tong experienced with iron infusion (feraheme)?
Based on Medicare claims data, Dr. Tong performed 25,500 iron infusion (feraheme) 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. Tong receive payments from pharmaceutical companies?
Yes. Dr. Tong received a total of $20,805 from 93 companies across 927 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. Tong's costs compare to other hematology & oncology specialists in Antioch?
Dr. Tong's average Medicare payment per service is $11. 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. Tong) 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 →
Explore related providers
Same specialty & city
Hematology & Oncology Specialists in Antioch
Browse hematology & oncology specialists in Antioch ranked by procedure volume and transparency data.
Highest volume
Top Hematology & Oncology Specialists in CA
Hematology & oncology specialists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Hematology & Oncology Specialists in CA
Which CA hematology & oncology specialists receive the most from drug and device companies.
By company
Seattle Genetics, Inc. Payments to Doctors
See all physicians who received payments from Seattle Genetics, Inc.
By company
Janssen Biotech, Inc. Payments to Doctors
See all physicians who received payments from Janssen Biotech, Inc.
By company
PFIZER INC. Payments to Doctors
See all physicians who received payments from PFIZER INC.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology