Medicare Enrolled
Dr. May Abdo-Matkiwsky, D.O.
Hematology & Oncology · Sparta, NJ
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. Abdo-Matkiwsky 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. Abdo-Matkiwsky
Dr. May Abdo-Matkiwsky is a hematology & oncology specialist in Sparta, NJ, with 20 years of NPI registration. Based on federal Medicare data, Dr. Abdo-Matkiwsky performed 130,122 Medicare services across 4,346 unique beneficiaries.
Between the years covered by Open Payments, Dr. Abdo-Matkiwsky received a total of $6,794 from 66 pharmaceutical and/or device companies across 358 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. Abdo-Matkiwsky 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 4% volume in NJ
$6,794 industry payments
Medicare Practice Summary
Medicare Utilization ↗130,122
Medicare services
Top 4% in NJ for hematology & oncology
4,346
Unique beneficiaries
$20
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~6,506 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 |
|---|---|---|---|
| Pembrolizumab injection (Keytruda) | 32,000 | $43 | $128 |
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
26,250 | $1 | $4 |
| Paclitaxel chemotherapy injection | 15,505 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 10,200 | $18 | $62 |
| Iron sucrose injection (Venofer) An injection of iron sucrose used to replenish iron levels in the body. |
5,000 | $0 | $2 |
| Bevacizumab-bvzr biosimilar injection, 10 mg An injection of bevacizumab-bvzr, a biosimilar medication, administered in a 10 mg dose. |
4,570 | $23 | $161 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
4,460 | $0 | $1 |
| Anti-nausea injection (aprepitant) | 3,770 | $1 | $7 |
| Rituximab-pvvr biosimilar injection, 10 mg An injection of rituximab-pvvr, a biosimilar medication, administered in a 10 mg dose. |
3,360 | $22 | $182 |
| 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. |
3,022 | $8 | $32 |
| Iron infusion (Monoferric) | 2,900 | $17 | $66 |
| Anti-nausea injection (Aloxi/palonosetron) | 2,550 | $1 | $95 |
| 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. |
2,220 | $105 | $231 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,879 | $8 | $18 |
| Anti-nausea injection (ondansetron/Zofran) | 1,440 | $0 | $2 |
| 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. |
1,285 | $26 | $126 |
| Injection, leucovorin calcium, per 50 mg | 915 | $3 | $22 |
| Pegfilgrastim-cbqv injection An injection of pegfilgrastim-cbqv, a biosimilar medication, administered at a dose of 0.5 mg. |
888 | $109 | $867 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
871 | $2 | $201 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
862 | $119 | $559 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
615 | $2 | $10 |
| Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg | 441 | $3 | $187 |
| 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. |
428 | $68 | $158 |
| 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. |
413 | $12 | $83 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
394 | $66 | $199 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
389 | $14 | $87 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
348 | $1 | $13 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
344 | $26 | $130 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
325 | $1 | $5 |
| 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. |
232 | $60 | $278 |
| 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. |
216 | $150 | $310 |
| 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. |
198 | $57 | $256 |
| 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. |
169 | $77 | $153 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
148 | $4 | $25 |
| 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. |
144 | $1 | $12 |
| 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. |
124 | $111 | $297 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
117 | $1 | $16 |
| 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. |
115 | $12 | $62 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
114 | $21 | $59 |
| 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. |
101 | $30 | $117 |
| 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. |
95 | $23 | $93 |
| New patient office visit, complex (60-74 min) | 87 | $180 | $440 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
82 | $18 | $72 |
| 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. |
82 | $137 | $349 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
79 | $18 | $79 |
| Intravenous push injection of new drug or substance A healthcare provider injects a new medication or substance directly into a vein using a push technique. |
71 | $51 | $227 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
65 | $89 | $249 |
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
62 | $8 | $32 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
62 | $30 | $205 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
38 | $44 | $95 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
33 | $68 | $172 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
22 | $159 | $519 |
| 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. |
22 | $99 | $248 |
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.
24.7% high complexity
68.2% medium
7.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$6,794
Total received (2018-2024)
Avg $971/year across 7 years
Top 36% in NJ for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
66
Companies
358
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
$4,971 (73.2%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,403 (20.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$421 (6.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,732
2023
$552
2022
$742
2021
$433
2020
$539
2019
$1,478
2018
$1,319
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$1,403
Novartis Pharmaceuticals Corporation
$47
GlaxoSmithKline, LLC.
$37
Astellas Pharma US Inc
$37
PFIZER INC.
$35
Janssen Biotech, Inc.
$34
Myriad Genetic Laboratories, Inc.
$21
BeiGene USA, Inc.
$20
Apellis Pharmaceuticals, Inc.
$18
Alexion Pharmaceuticals, Inc.
$17
EMD Serono, Inc.
$17
Genentech USA, Inc.
$17
E.R. Squibb & Sons, L.L.C.
$15
Celgene Corporation
$14
Top 3 companies account for 85.9% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$1,586
PFIZER INC.
$593
Novartis Pharmaceuticals Corporation
$518
Janssen Biotech, Inc.
$475
E.R. Squibb & Sons, L.L.C.
$392
Merck Sharp & Dohme Corporation
$385
Astellas Pharma US Inc
$341
Genentech USA, Inc.
$277
Amgen Inc.
$268
Lilly USA, LLC
$175
Gilead Sciences, Inc.
$127
Bayer HealthCare Pharmaceuticals Inc.
$102
GlaxoSmithKline, LLC.
$100
Pharmacyclics LLC, An AbbVie Company
$74
Merck Sharp & Dohme LLC
$65
Incyte Corporation
$60
Celgene Corporation
$58
Seagen Inc.
$55
Mirati Therapeutics, Inc.
$54
Kite Pharma, Inc.
$52
GENZYME CORPORATION
$50
Takeda Pharmaceuticals U.S.A., Inc.
$46
Janssen Pharmaceuticals, Inc
$44
Alexion Pharmaceuticals, Inc.
$42
Kyowa Kirin, Inc.
$42
EMD Serono, Inc.
$41
Apellis Pharmaceuticals, Inc.
$41
Myriad Genetic Laboratories, Inc.
$40
Shire North American Group Inc
$37
Regeneron Healthcare Solutions, Inc.
$30
Daiichi Sankyo Inc.
$28
AbbVie Inc.
$28
Pharmacyclics LLC, an AbbVie Company
$27
MEDIVATION FIELD SOLUTIONS LLC
$27
Rigel Pharmaceuticals, Inc.
$27
AbbVie, Inc.
$24
Octapharma USA, Inc.
$23
Array BioPharma Inc.
$23
BeiGene USA, Inc.
$20
Stemline Therapeutics Inc.
$20
Myovant Sciences Inc.
$18
Pharmacosmos Therapeutics Inc.
$17
Acrotech Biopharma LLC
$17
TESARO, Inc.
$17
MACROGENICS, INC.
$16
ARRAY BIOPHARMA INC
$16
Otsuka America Pharmaceutical, Inc.
$16
Servier Pharmaceuticals LLC
$15
Ipsen Biopharmaceuticals, Inc
$15
Seattle Genetics, Inc.
$15
TerSera Therapeutics LLC
$15
CTI BioPharma Corp.
$15
Blueprint Medicines Corporation
$14
Genmab U.S., Inc.
$14
Partner Therapeutics, Inc.
$14
EISAI INC.
$14
Taiho Oncology, Inc.
$14
Eisai Inc.
$14
Puma Biotechnology, Inc.
$14
Boehringer Ingelheim Pharmaceuticals, Inc.
$14
Teva Pharmaceuticals USA, Inc.
$13
Heron Therapeutics, Inc.
$13
Mylan Institutional Inc.
$13
MorphoSys, US Inc.
$12
Karyopharm Therapeutics Inc.
$12
Spectrum Pharmaceuticals Inc.
$11
Top 3 companies account for 39.7% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AFINITOR · ALIMTA · AYVAKIT · Alecensa · Avastin · BOSULIF · BRAFTOVI · BRUKINSA · Balversa · Bavencio · Beleodaq · Braftovi · CYRAMZA · DARZALEX · ELIQUIS · ELITEK · ENHERTU · EPKINLY · ERBITUX · ERLEADA · EXKIVITY · Empaveli · Erivedge · Erleada · FASLODEX · FOLOTYN · GAZYVA · GILOTRIF · Halaven · IBRANCE · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · Imbruvica · JADENU · JAKAFI · JEMPERLI · JEVTANA · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · Kyprolis · LENVIMA · LIBTAYO · LUMAKRAS · LYNPARZA · Lenvima · Leukine · Lonsurf · Lunsumio · MARGENZA · MEKINIST · MONJUVI · MONOFERRIC · MYLOTARG · MYRISK · NERLYNX · NINLARO · Neulasta · Nplate · Nubeqa · OPDIVO · OPDUALAG · ORGOVYX · Ogivri · Orserdu · PADCEV · PIQRAY · PLUVICTO · POTELIGEO · PROMACTA · Padcev · Perjeta · REBLOZYL · RYDAPT · SANDOSTATIN · SCEMBLIX · SOMATULINE DEPOT · SPRYCEL · SUSTOL · SUTENT · Stivarga · TAGRISSO · TASIGNA · TIBSOVO · TREANDA · TUKYSA · Tavalisse · Tivdak · Trodelvy · ULTOMIRIS · Ultomiris · VENCLEXTA · VERZENIO · VOTRIENT · VPRIV · Venclexta · Vonjo · WILATE · XALKORI · XARELTO · XOSPATA · XPOVIO · XTANDI · Xospata · Xtandi · Yescarta · ZEJULA · Zoladex · 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 (73%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
44
Per 100K population
30.3
County median income
$114,316
Nearest hospital
NEWTON MEDICAL CENTER
9.1 mi
9.1 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. Abdo-Matkiwsky is a mixed practice specialist, with above-average Medicare volume (top 4% in NJ), with low-engagement industry engagement, 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. Abdo-Matkiwsky experienced with pembrolizumab injection (keytruda)?
Based on Medicare claims data, Dr. Abdo-Matkiwsky performed 32,000 pembrolizumab injection (keytruda) 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. Abdo-Matkiwsky receive payments from pharmaceutical companies?
Yes. Dr. Abdo-Matkiwsky received a total of $6,794 from 66 companies across 358 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. Abdo-Matkiwsky's costs compare to other hematology & oncology specialists in Sparta?
Dr. Abdo-Matkiwsky's average Medicare payment per service is $20. 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. Abdo-Matkiwsky) 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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