Medicare Enrolled
Dr. Naixi Chen, M.D., PH.D.
Hematology & Oncology · Renton, WA
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. Chen 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. Chen
Dr. Naixi Chen is a hematology & oncology specialist in Renton, WA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chen performed 216,670 Medicare services across 1,406 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chen received a total of $29,147 from 105 pharmaceutical and/or device companies across 1225 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. Chen 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.
✓ 20 years in practice
▲ Top 1% volume in WA
$29,147 industry payments
Medicare Practice Summary
Medicare Utilization ↗216,670
Medicare services
Top 1% in WA for hematology & oncology
1,406
Unique beneficiaries
$4
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~10,834 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 |
|---|---|---|---|
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
64,856 | $0 | $4 |
| Injection, heparin sodium, (heparin lock flush), per 10 units | 49,600 | $0 | $2 |
| Paclitaxel protein-bound particle injection An injection of paclitaxel formulated as protein-bound particles. This code specifies the administration of the medication measured in milligrams. |
26,700 | $10 | $38 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
15,750 | $0 | $6 |
| Paclitaxel chemotherapy injection | 15,361 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 14,520 | $18 | $56 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
8,930 | $0 | $2 |
| Anti-nausea injection (Aloxi/palonosetron) | 4,570 | $1 | $38 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
2,755 | $1 | $3 |
| Epoetin alfa injection (Procrit) for anemia An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis. |
2,580 | $6 | $30 |
| 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. |
1,448 | $26 | $71 |
| Injection, potassium chloride, per 2 meq | 1,390 | $0 | $1 |
| 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. |
971 | $8 | $18 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
811 | $2 | $9 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
808 | $123 | $325 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
591 | $60 | $157 |
| 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. |
548 | $57 | $165 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
529 | $12 | $31 |
| 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. |
475 | $105 | $239 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
475 | $2 | $7 |
| 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. |
457 | $13 | $38 |
| Cisplatin chemotherapy injection, 10 mg Administration of a 10 mg dose of cisplatin, a chemotherapy medication, via injection. |
442 | $2 | $6 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
408 | $14 | $38 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
355 | $1 | $4 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
261 | $6 | $6 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
228 | $18 | $48 |
| 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. |
175 | $146 | $319 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
174 | $18 | $49 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
166 | $26 | $70 |
| Normal saline infusion, 500 ml Administration of sterile normal saline solution through an intravenous line. This procedure involves the infusion of a 500 ml unit of the solution. |
105 | $1 | $4 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
75 | $31 | $71 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
65 | $3 | $7 |
| 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. |
33 | $74 | $164 |
| New patient office visit, complex (60-74 min) | 31 | $169 | $450 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
27 | $2 | $7 |
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.
1.8% high complexity
67.1% medium
31.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$29,147
Total received (2018-2024)
Avg $4,164/year across 7 years
Top 13% in WA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
105
Companies
1,225
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
$25,272 (86.7%)
Other
Charitable contributions, space rental, and other categories
$2,151 (7.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$1,725 (5.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$6,481
2023
$6,043
2022
$5,410
2021
$3,121
2020
$912
2019
$3,696
2018
$3,485
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$1,263
AstraZeneca Pharmaceuticals LP
$549
Janssen Biotech, Inc.
$358
PFIZER INC.
$320
ABBVIE INC.
$241
E.R. Squibb & Sons, L.L.C.
$228
GlaxoSmithKline, LLC.
$218
BeiGene USA, Inc.
$208
TAIHO ONCOLOGY, INC.
$189
Astellas Pharma US Inc
$188
GENZYME CORPORATION
$180
Merck Sharp & Dohme LLC
$159
Eisai Inc.
$158
Stemline Therapeutics Inc.
$156
ARRAY BIOPHARMA INC
$146
Exelixis Inc.
$138
Lilly USA, LLC
$137
Bayer Healthcare Pharmaceuticals Inc.
$122
Regeneron Healthcare Solutions, Inc.
$121
Coherus Biosciences Inc.
$117
Celgene Corporation
$105
Takeda Pharmaceuticals U.S.A., Inc.
$101
Daiichi Sankyo Inc.
$91
ACCORD HEALTHCARE, INC.
$85
ADC Therapeutics America, Inc.
$83
TerSera Therapeutics LLC
$75
Tempus AI, Inc
$66
Organon Llc
$62
Incyte Corporation
$61
EMD Serono, Inc.
$59
SpringWorks Therapeutics, Inc.
$58
SOBI, INC
$51
Pharmacosmos Therapeutics Inc.
$43
Gilead Sciences, Inc.
$41
Amneal Pharmaceuticals LLC
$35
Alnylam Pharmaceuticals Inc.
$27
Teva Pharmaceuticals USA, Inc.
$26
Partner Therapeutics, Inc.
$26
Acrotech Biopharma Inc.
$26
Mirati Therapeutics, Inc.
$25
Spectrum Pharmaceuticals Inc.
$24
Sumitomo Pharma America, Inc.
$23
Phathom Pharmaceuticals, Inc.
$20
SERVIER PHARMACEUTICALS LLC
$20
Biocon Biologics Inc
$20
Apellis Pharmaceuticals, Inc.
$19
Celltrion USA Inc.
$17
Top 3 companies account for 33.5% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$2,750
AstraZeneca Pharmaceuticals LP
$2,007
E.R. Squibb & Sons, L.L.C.
$1,900
Janssen Biotech, Inc.
$1,438
Amgen Inc.
$1,281
Seagen Inc.
$1,042
Celgene Corporation
$1,004
PFIZER INC.
$957
GENZYME CORPORATION
$905
Incyte Corporation
$763
Genentech USA, Inc.
$758
Lilly USA, LLC
$733
Astellas Pharma US Inc
$730
GlaxoSmithKline, LLC.
$543
Boehringer Ingelheim Pharmaceuticals, Inc.
$476
Exelixis Inc.
$473
ABBVIE INC.
$446
Pharmacyclics LLC, An AbbVie Company
$435
Merck Sharp & Dohme LLC
$419
Bayer HealthCare Pharmaceuticals Inc.
$415
Merck Sharp & Dohme Corporation
$383
Takeda Pharmaceuticals U.S.A., Inc.
$376
Daiichi Sankyo Inc.
$363
BeiGene USA, Inc.
$360
EISAI INC.
$338
ARRAY BIOPHARMA INC
$310
TerSera Therapeutics LLC
$263
Eisai Inc.
$256
AbbVie Inc.
$254
NOVARTIS PHARMACEUTICALS CORPORATION
$250
Octapharma USA, Inc.
$245
TAIHO ONCOLOGY, INC.
$234
Gilead Sciences, Inc.
$222
Coherus Biosciences Inc.
$217
EMD Serono, Inc.
$206
Stemline Therapeutics Inc.
$205
SOBI, INC
$197
Kite Pharma, Inc.
$196
Bayer Healthcare Pharmaceuticals Inc.
$174
Foundation Medicine, Inc.
$174
Pharmacyclics LLC, an AbbVie Company
$170
Sobi, Inc
$165
Pharmacosmos Therapeutics Inc.
$163
Ipsen Biopharmaceuticals, Inc
$163
Seattle Genetics, Inc.
$159
Regeneron Healthcare Solutions, Inc.
$155
Deciphera Pharmaceuticals Inc.
$140
GE HealthCare
$136
MorphoSys, US Inc.
$133
Mirati Therapeutics, Inc.
$131
Verastem, Inc.
$130
AVEO Pharmaceuticals, Inc.
$130
Clovis Oncology, Inc.
$123
Alnylam Pharmaceuticals Inc.
$104
CTI BioPharma Corp.
$102
TESARO, Inc.
$97
SERVIER PHARMACEUTICALS LLC
$97
Blueprint Medicines Corporation
$95
Mylan Institutional Inc.
$90
Sun Pharmaceutical Industries Inc.
$86
ACCORD HEALTHCARE, INC.
$85
Janssen Products, LP
$85
ADC Therapeutics America, Inc.
$83
Amneal Pharmaceuticals LLC
$81
Acrotech Biopharma Inc.
$80
Helsinn Therapeutics (U.S.), Inc.
$77
JAZZ PHARMACEUTICALS INC.
$76
Novocure Inc.
$66
Tempus AI, Inc
$66
Organon Llc
$62
Dendreon Pharmaceuticals LLC
$61
Organon LLC
$59
SpringWorks Therapeutics, Inc.
$58
PUMA BIOTECHNOLOGY, INC.
$56
MACROGENICS, INC.
$51
Sumitomo Pharma America, Inc.
$50
SANOFI-AVENTIS U.S. LLC
$46
Shire North American Group Inc
$43
Puma Biotechnology, Inc.
$42
Myovant Sciences Inc.
$41
Agios Pharmaceuticals, Inc.
$41
Heron Therapeutics, Inc.
$41
AbbVie, Inc.
$40
Epizyme, Inc.,
$39
Rigel Pharmaceuticals, Inc.
$33
Sandoz Inc.
$27
Array BioPharma Inc.
$27
Teva Pharmaceuticals USA, Inc.
$26
Partner Therapeutics, Inc.
$26
GE HEALTHCARE
$25
G1 Therapeutics, Inc.
$24
TG Therapeutics, Inc.
$24
Spectrum Pharmaceuticals Inc.
$24
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$22
Phathom Pharmaceuticals, Inc.
$20
Jazz Pharmaceuticals Inc.
$20
Digestive Care, Inc.
$20
Biocon Biologics Inc
$20
Apellis Pharmaceuticals, Inc.
$19
Midatech Pharma US Inc
$18
Celltrion USA Inc.
$17
Epizyme, Inc.
$16
Pharming Healthcare, Inc.
$16
Ferring Pharmaceuticals Inc.
$16
INSYS Therapeutics Inc
$14
Top 3 companies account for 22.8% of all-time payments
Associated products mentioned in payments ›
ABECMA · ADCETRIS · AFINITOR · AKYNZEO · ALIMTA · ALUNBRIG · AUGTYRO · AVASTIN · AYVAKIT · Abraxane · Alecensa · Aliqopa · Aranesp · Avastin · BAVENCIO · BELEODAQ · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Bavencio · Blincyto · Braftovi · CABOMETYX · CALQUENCE · CAMCEVI · CINVANTI · COSELA · CYRAMZA · Cabometyx · Copiktra · Cresemba · DARZALEX · DIFICID · DOPTELET · Doptelet · ELITEK · ELREXFIO · ELZONRIS · EMEND · EMPLICITI · ENHERTU · EPKINLY · ERBITUX · ERLEADA · Empaveli · Enhertu · Erleada · FASLODEX · FIRMAGON · FOTIVDA · FOUNDATIONONE · Fabhalta · Fulphila · GAVRETO · GAZYVA · GILOTRIF · Gelclair · Herceptin · IBRANCE · ICLUSIG · IDHIFA · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · Imbruvica · Inrebic · JADENU · JAKAFI · JEMPERLI · JEVTANA · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · Kadcyla · Kyprolis · LEUKINE · LIBTAYO · LONSURF · LORBRENA · LUMAKRAS · LUPRON DEPOT · LUTATHERA · LYNPARZA · Lenvima · MARGENZA · MEKINIST · MONJUVI · MONOFERRIC · MVASI · NERLYNX · NEUPOGEN · Nerlynx · Neulasta · Nplate · Nubeqa · OCTAGAM · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OGIVRI · OGSIVEO · OJJAARA · ONIVYDE · ONTRUZANT · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OXLUMO · Odomzo · Ogivri · Oncology · Onivyde · Optune · Orserdu · PADCEV · PIQRAY · PLUVICTO · PREVYMIS · PROMACTA · PROVENGE · Padcev · Perjeta · Pertzye · Phesgo · Pomalyst · QINLOCK · Quzyttir · REBLOZYL · RELISTOR · ROLVEDON · RUCONEST · RYBREVANT · RYDAPT · Revlimid · Rezlidhia · Rubraca · SANDOSTATIN LAR · SARCLISA · SCEMBLIX · SHINGRIX · SOMATULINE DEPOT · SPRYCEL · SUBSYS · SUSTOL · SUTENT · Somatuline Depot · Stivarga · TAGRISSO · TALVEY · TASIGNA · TAZVERIK · TECENTRIQ · TECVAYLI · TEVIMBRA · TIBSOVO · TIVDAK · TUKYSA · TUMOR LYSIS SYNDROME - DISEASE · Tavalisse · Tazverik · Tecentriq · Tibsovo · Trodelvy · Truxima · UKONIQ · Udenyca · VEGZELMA · VENCLEXTA · VERZENIO · VONJO · VOQUEZNA · VOTRIENT · VPRIV · VYXEOS · Venclexta · Vitrakvi · Vonjo · Vyloy · XALKORI · XGEVA · XOSPATA · XTANDI · Xermelo · Xofigo · Xospata · Xtandi · YERVOY · YONSA · Yescarta · ZARXIO · ZEJULA · ZEPZELCA · ZYKADIA · ZYTIGA · Zoladex · Zydelig
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 (87%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
279
Per 100K population
12.3
County median income
$122,148
Nearest hospital
VALLEY MEDICAL CENTER
1.9 mi
1.9 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. Chen is a mixed practice specialist, with above-average Medicare volume (top 1% in WA), with low-engagement industry engagement in the top 13% of WA peers, with 20 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. Chen experienced with unclassified drug?
Based on Medicare claims data, Dr. Chen performed 64,856 unclassified drug 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. Chen receive payments from pharmaceutical companies?
Yes. Dr. Chen received a total of $29,147 from 105 companies across 1,225 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. Chen's costs compare to other hematology & oncology specialists in Renton?
Dr. Chen's average Medicare payment per service is $4. 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. Chen) 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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