Medicare Enrolled
Dr. Matthew Weissler, M.D.
Hematology & Oncology · White Plains, NY
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Speaking/Promotional
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. Weissler 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. Weissler?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Weissler
Dr. Matthew Weissler is a hematology & oncology specialist in White Plains, NY, with 18 years of NPI registration. Based on federal Medicare data, Dr. Weissler performed 188,145 Medicare services across 5,155 unique beneficiaries.
Between the years covered by Open Payments, Dr. Weissler received a total of $12 from 1 pharmaceutical and/or device company across 1 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Weissler 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 3% volume in NY
$12 industry payments
Medicare Practice Summary
Medicare Utilization ↗188,145
Medicare services
Top 3% in NY for hematology & oncology
5,155
Unique beneficiaries
$9
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~10,452 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 sucrose injection (Venofer) An injection of iron sucrose used to replenish iron levels in the body. |
46,600 | $0 | $1 |
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
43,500 | $1 | $3 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
15,150 | $0 | $5 |
| Pembrolizumab injection (Keytruda) | 14,600 | $43 | $123 |
| Tocilizumab injection (Actemra) | 11,720 | $5 | $11 |
| Certolizumab injection (Cimzia) An injection of certolizumab pegol administered under the direct supervision of a physician. |
9,600 | $4 | $20 |
| Denosumab injection (Prolia/Xgeva) | 8,641 | $18 | $43 |
| Bevacizumab biosimilar injection, 10 mg An injection of bevacizumab-awwb, a biosimilar medication, administered in a 10 mg dose. |
6,370 | $23 | $90 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
5,272 | $0 | $5 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
2,439 | $8 | $9 |
| 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. |
2,307 | $8 | $29 |
| Injection, leucovorin calcium, per 50 mg | 2,176 | $3 | $10 |
| Anti-nausea injection (ondansetron/Zofran) | 2,088 | $0 | $5 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,878 | $10 | $58 |
| 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. |
1,840 | $6 | $41 |
| Abatacept infusion (Orencia) An injection of abatacept administered under the direct supervision of a physician. This code is used for Medicare when the drug is not self-administered. |
1,600 | $34 | $130 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
1,329 | $2 | $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. |
1,294 | $78 | $227 |
| Anti-nausea injection (Aloxi/palonosetron) | 1,180 | $1 | $60 |
| 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. |
793 | $27 | $157 |
| 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. |
791 | $112 | $332 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
736 | $124 | $928 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
476 | $13 | $85 |
| 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. |
452 | $60 | $313 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
435 | $2 | $26 |
| 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. |
388 | $12 | $88 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
285 | $7 | $206 |
| 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. |
250 | $62 | $344 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
240 | $6 | $69 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
231 | $18 | $121 |
| Iron level test | 225 | $6 | $43 |
| Transferrin level test A blood test that measures the amount of transferrin, a protein that binds to and transports iron in the body. |
225 | $12 | $76 |
| 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. |
187 | $2 | $20 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
183 | $27 | $144 |
| 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. |
180 | $30 | $256 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
170 | $16 | $75 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
168 | $15 | $91 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
166 | $1 | $10 |
| 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. |
133 | $145 | $510 |
| 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. |
126 | $44 | $137 |
| IV chemotherapy initiation with community continuation Initiation of an intravenous chemotherapy infusion in a clinic using clinic supplies, with continuation of the infusion in a community setting such as home or assisted living. |
124 | $232 | $800 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
122 | $3 | $15 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
94 | $19 | $65 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
91 | $68 | $258 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
88 | $15 | $72 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
87 | $29 | $200 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
82 | $14 | $60 |
| Hepatitis A antibody test A blood test that measures the level of antibodies to the hepatitis A virus in your body. This test helps determine if you have been exposed to the virus or if you have immunity from vaccination. |
80 | $12 | $55 |
| 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. |
78 | $32 | $161 |
| PSA test (prostate cancer screening) | 75 | $18 | $112 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
69 | $14 | $93 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
62 | $13 | $82 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
60 | $10 | $58 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
53 | $1 | $15 |
| 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. |
50 | $12 | $49 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
44 | $9 | $53 |
| 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. |
42 | $1 | $15 |
| 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. |
40 | $53 | $314 |
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
36 | $47 | $85 |
| HIV-1 antigen and HIV-1/2 antibody test A laboratory test using immunoassay techniques to detect HIV-1 antigens and antibodies for both HIV-1 and HIV-2. |
31 | $24 | $88 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
30 | $5 | $25 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
28 | $4 | $32 |
| 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. |
28 | $165 | $446 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
26 | $83 | $150 |
| 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. |
24 | $4 | $20 |
| New patient office visit, complex (60-74 min) | 23 | $204 | $642 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
20 | $22 | $61 |
| 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. |
20 | $120 | $420 |
| Coagulation assessment blood test A blood test that measures how long it takes for blood to clot. The sample can be plasma or whole blood. |
19 | $6 | $39 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
18 | $4 | $17 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
17 | $40 | $203 |
| 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. |
17 | $156 | $620 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
16 | $8 | $40 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
15 | $5 | $25 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
12 | $6 | $49 |
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.
25.4% high complexity
68.3% medium
6.3% routine
Industry Payment Transparency
Open Payments through 2021 ↗$12
Total received (2021-2021)
1
Company
1
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.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$12 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2021
$12
Payments by company (2021)
Consulting
Speaking
Meals & Travel
Research
Gilead Sciences, Inc.
$12
Top 3 companies account for 100.0% of 2021 payments
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 →
The majority of payments (100%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in hematology & oncology and does not inherently indicate bias, but patients may wish to be aware.
Geographic Context
Hematology & oncology specialists within 10 mi
504
Per 100K population
50.6
County median income
$118,411
Nearest hospital
WESTCHESTER MEDICAL CENTER
2.1 mi
2.1 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 2021 |
| 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. Weissler is a mixed practice specialist, with above-average Medicare volume (top 3% in NY), with speaking/promotional industry engagement, 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. Weissler experienced with iron sucrose injection (venofer)?
Based on Medicare claims data, Dr. Weissler performed 46,600 iron sucrose injection (venofer) 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. Weissler receive payments from pharmaceutical companies?
Yes. Dr. Weissler received a total of $12 from 1 company across 1 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. Weissler's costs compare to other hematology & oncology specialists in White Plains?
Dr. Weissler's average Medicare payment per service is $9. 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. Weissler) 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 White Plains
Browse hematology & oncology specialists in White Plains ranked by procedure volume and transparency data.
Highest volume
Top Hematology & Oncology Specialists in NY
Hematology & oncology specialists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Hematology & Oncology Specialists in NY
Which NY hematology & oncology specialists receive the most from drug and device companies.
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