Medicare Enrolled
Dr. Robert Tassan, M.D.
Medical Oncology · Westwood, NJ
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Tassan 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. Tassan
Dr. Robert Tassan is a medical oncology specialist in Westwood, NJ, with 20 years of NPI registration. Based on federal Medicare data, Dr. Tassan performed 112,141 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Tassan received a total of $19,841 from 100 pharmaceutical and/or device companies across 1335 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Tassan 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 of NPI registration
▲ Top 6% volume in NJ
$19,841 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗112,141
Medicare services
Top 6% in NJ for medical oncology
Not available
Unique patients (not deduplicated)
$4
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
98,250 | $1 | $4 |
| 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. |
9,710 | $6 | $42 |
| 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. |
1,875 | $103 | $235 |
| 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. |
1,088 | $8 | $32 |
| 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. |
385 | $12 | $78 |
| 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. |
198 | $134 | $353 |
| 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. |
180 | $55 | $267 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
138 | $8 | $19 |
| 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. |
135 | $101 | $223 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
84 | $89 | $248 |
| 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. |
45 | $143 | $426 |
| 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. |
38 | $157 | $302 |
| 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. |
15 | $68 | $151 |
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. These counts do not measure clinical quality or years of experience.
87.8% high complexity
9.0% medium
3.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$19,841
Total received (2018-2024)
Avg $2,834/year across 7 years
Top 7% in NJ for medical oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
100
Companies
1,335
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,042
2023
$3,467
2022
$2,919
2021
$2,757
2020
$2,617
2019
$2,761
2018
$2,278
Payments by company (2024)
Rigel Pharmaceuticals, Inc.
$318
Novartis Pharmaceuticals Corporation
$288
Celgene Corporation
$285
ABBVIE INC.
$238
Janssen Biotech, Inc.
$187
PFIZER INC.
$143
Merck Sharp & Dohme LLC
$134
Incyte Corporation
$96
AstraZeneca Pharmaceuticals LP
$92
Mirati Therapeutics, Inc.
$90
E.R. Squibb & Sons, L.L.C.
$86
TAIHO ONCOLOGY, INC.
$83
Daiichi Sankyo Inc.
$66
Karyopharm Therapeutics Inc.
$66
SOBI, INC
$61
Genentech USA, Inc.
$60
Agios Pharmaceuticals, Inc.
$59
Regeneron Healthcare Solutions, Inc.
$53
BeiGene USA, Inc.
$53
PharmaEssentia USA Corporation
$51
Gilead Sciences, Inc.
$42
Takeda Pharmaceuticals U.S.A., Inc.
$39
Blueprint Medicines Corporation
$38
Bayer Healthcare Pharmaceuticals Inc.
$37
Astellas Pharma US Inc
$37
Exelixis Inc.
$37
Genmab U.S., Inc.
$33
Spectrum Pharmaceuticals Inc.
$24
Stemline Therapeutics Inc.
$22
Adaptive Biotechnologies Corporation
$22
Apellis Pharmaceuticals, Inc.
$21
GENZYME CORPORATION
$21
Janssen Pharmaceuticals, Inc
$18
Eisai Inc.
$18
RECORDATI_RARE_DISEASES_INC.
$18
EMD Serono, Inc.
$16
Myriad Genetic Laboratories, Inc.
$16
Lilly USA, LLC
$16
GlaxoSmithKline, LLC.
$15
Blue Earth Diagnostics Limited
$15
Alexion Pharmaceuticals, Inc.
$15
Octapharma USA, Inc.
$14
Top 3 companies account for 29.3% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$2,558
AstraZeneca Pharmaceuticals LP
$1,217
Celgene Corporation
$1,048
Daiichi Sankyo Inc.
$1,046
Amgen Inc.
$913
Merck Sharp & Dohme Corporation
$805
Rigel Pharmaceuticals, Inc.
$724
Janssen Biotech, Inc.
$694
E.R. Squibb & Sons, L.L.C.
$678
PFIZER INC.
$633
Astellas Pharma US Inc
$589
Incyte Corporation
$557
Genentech USA, Inc.
$466
Merck Sharp & Dohme LLC
$465
Pharmacyclics LLC, An AbbVie Company
$406
Bayer HealthCare Pharmaceuticals Inc.
$326
Seagen Inc.
$324
Karyopharm Therapeutics Inc.
$298
GENZYME CORPORATION
$287
ABBVIE INC.
$253
Taiho Oncology, Inc.
$248
Boehringer Ingelheim Pharmaceuticals, Inc.
$228
Mirati Therapeutics, Inc.
$192
GlaxoSmithKline, LLC.
$179
Eisai Inc.
$173
Lilly USA, LLC
$165
Spectrum Pharmaceuticals Inc.
$159
TAIHO ONCOLOGY, INC.
$151
Coherus Biosciences Inc.
$144
Pharmacyclics LLC, an AbbVie Company
$137
Takeda Pharmaceuticals U.S.A., Inc.
$134
ARRAY BIOPHARMA INC
$131
Blueprint Medicines Corporation
$125
PUMA BIOTECHNOLOGY, INC.
$122
PharmaEssentia USA Corporation
$118
Ipsen Biopharmaceuticals, Inc
$114
Puma Biotechnology, Inc.
$114
Foundation Medicine, Inc.
$112
EISAI INC.
$111
Aurobindo Pharma USA, Inc.
$109
Agios Pharmaceuticals, Inc.
$104
Kyowa Kirin, Inc.
$104
AbbVie Inc.
$103
Exelixis Inc.
$102
AMAG Pharmaceuticals, Inc.
$100
Regeneron Healthcare Solutions, Inc.
$98
Emmaus Medical, Inc.
$87
Alexion Pharmaceuticals, Inc.
$79
Bayer Healthcare Pharmaceuticals Inc.
$75
SOBI, INC
$75
Epizyme, Inc.,
$72
Jazz Pharmaceuticals Inc.
$72
Pharmacosmos Therapeutics Inc.
$66
Adaptive Biotechnologies Corporation
$61
EMD Serono, Inc.
$58
Stemline Therapeutics Inc.
$56
Apellis Pharmaceuticals, Inc.
$54
BeiGene USA, Inc.
$53
JAZZ PHARMACEUTICALS INC.
$51
G1 Therapeutics, Inc.
$50
RECORDATI_RARE_DISEASES_INC.
$48
Sobi, Inc
$44
Acceleron Pharma, Inc.
$44
AbbVie, Inc.
$43
Gilead Sciences, Inc.
$42
Alnylam Pharmaceuticals Inc.
$40
Seattle Genetics, Inc.
$40
Teva Pharmaceuticals USA, Inc.
$39
Sandoz Inc.
$37
TerSera Therapeutics LLC
$34
Genmab U.S., Inc.
$33
Verastem, Inc.
$32
Servier Pharmaceuticals LLC
$30
MorphoSys, US Inc.
$30
Otsuka America Pharmaceutical, Inc.
$30
Janssen Pharmaceuticals, Inc
$30
Global Blood Therapeutics, Inc.
$29
CTI BioPharma Corp.
$28
Dova Pharmaceuticals
$28
MEDIVATION FIELD SOLUTIONS LLC
$27
PORTOLA PHARMACEUTICALS, INC.
$27
Heron Therapeutics, Inc.
$25
Fresenius Kabi USA, LLC
$25
Sirtex Medical Inc
$22
Secura Bio, Inc.
$22
Aveo Pharmaceuticals, Inc.
$22
AVEO Pharmaceuticals, Inc.
$22
MACROGENICS, INC.
$21
Acrotech Biopharma LLC
$18
Myovant Sciences Inc.
$16
Myriad Genetic Laboratories, Inc.
$16
Blue Earth Diagnostics Limited
$15
West Therapeutics Development, LLC
$15
Shire North American Group Inc
$15
TG Therapeutics, Inc.
$15
EUSA Pharma (US) LLC
$14
Octapharma USA, Inc.
$14
Lexicon Pharmaceuticals, Inc.
$13
Array BioPharma Inc.
$12
NOVARTIS PHARMACEUTICALS CORPORATION
$11
Top 3 companies account for 24.3% of all-time payments
Associated products mentioned in payments ›
ADAKVEO · ADCETRIS · AFINITOR · ALUNBRIG · ANDEXXA · AYVAKIT · Abraxane · Alecensa · Aliqopa · Avastin · BAVENCIO · BELEODAQ · BENDEKA · BESREMI · BOSULIF · BRAFTOVI · BRUKINSA · Balversa · Bavencio · Beleodaq · Braftovi · CABOMETYX · CALQUENCE · CARVYKTI · CERDELGA · CHANTIX · CINVANTI · COSELA · CYRAMZA · Cabometyx · Columvi · Copiktra · DARZALEX · DOPTELET · Doptelet · ELIQUIS · ELITEK · ELZONRIS · EMPLICITI · ENHERTU · EPKINLY · ERBITUX · ERLEADA · Empaveli · Endari · Enhertu · Epkinly · Erivedge · Erleada · FARESTON · FARYDAK · FASLODEX · FERAHEME · FOTIVDA · FOUNDATIONONE · Fabhalta · Farydak · Folotyn · GAVRETO · GAZYVA · GILOTRIF · GIVLAARI · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · INQOVI · Imbruvica · Inrebic · JADENU · JAKAFI · JAYPIRCA · JEVTANA · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · LEMTRADA · LENVIMA · LIBTAYO · LONSURF · LUMAKRAS · LYNPARZA · Lazanda · Lenvima · Lonsurf · MARGENZA · MEKINIST · MONJUVI · MONOFERRIC · MVASI · MYRISK · Marqibo · NERLYNX · NINLARO · Nerlynx · Neulasta · Nplate · Nubeqa · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OJJAARA · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Orserdu · PADCEV · PANHEMATIN · PEMAZYRE · PIQRAY · POSLUMA · POTELIGEO · PROMACTA · PYRUKYND · Padcev · Pomalyst · Poteligeo · REBLOZYL · ROLVEDON · RYBREVANT · RYDAPT · Reblozyl · Revlimid · Rezlidhia · Rituxan Hycela · SANCUSO · SANDOSTATIN · SARCLISA · SCEMBLIX · SHINGRIX · SIR-Spheres Microspheres · SOLIRIS · SOMATULINE DEPOT · SPRYCEL · SUSTOL · SYNAGIS · Somatuline Depot · Stimufend · Stivarga · Sylvant · TAFINLAR · TAGRISSO · TASIGNA · TAZVERIK · TECENTRIQ · TIBSOVO · TREANDA · TUKYSA · Tavalisse · Tecentriq · Tivdak · UKONIQ · ULTOMIRIS · Udenyca · VENCLEXTA · VERZENIO · VONJO · VOTRIENT · VPRIV · VYXEOS · Vanflyta · Vectibix · Venclexta · Vitrakvi · Vonjo · Vyloy · XALKORI · XARELTO · XGEVA · XOSPATA · XPOVIO · XTANDI · Xermelo · Xofigo · Xtandi · ZARXIO · ZEJULA · ZEPZELCA · Zevalin · Zoladex · clonoSEQ
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Medical oncologists in nearby ZIP areas
344
County median income
$123,715
Nearest hospital to ZIP centroid (approximate)
HACKENSACK MERIDIAN HEALTH PASCACK VALLEY MEDICAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Tassan is a mixed practice specialist, with above-average Medicare volume (top 6% in NJ), 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. Tassan experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Tassan performed 98,250 iron infusion (injectafer) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Tassan receive payments from pharmaceutical companies?
Yes. Dr. Tassan received a total of $19,841 from 100 companies across 1,335 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Tassan's costs compare to other medical oncologists in Westwood?
Dr. Tassan'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. Tassan) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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