Medicare Enrolled
Dr. Steven Mamus, M.D.
Hematology & Oncology · Sarasota, FL
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. Mamus 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. Mamus?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Mamus
Dr. Steven Mamus is a hematology & oncology specialist in Sarasota, FL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Mamus performed 116,400 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mamus received a total of $27,775 from 123 pharmaceutical and/or device companies across 1503 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. Mamus 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 5% volume in FL
$27,775 industry payments
Florida License Status
FL DOH · MQA1
Active license
None
Board action on record
0
Recent admin complaints
| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 48231 | Clear | January 31, 2028 | — |
Data from Florida Department of Health Medical Quality Assurance.
License records are public under Chapter 119, Florida Statutes.
Verify directly on FL DOH →
Medicare Practice Summary — 2023
Medicare Utilization ↗116,400
Medicare services
Top 5% in FL for hematology & oncology
Not available
Unique patients (not deduplicated)
$12
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 |
|---|---|---|---|
| Pembrolizumab injection (Keytruda) | 27,200 | $17 | $44 |
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
21,000 | $1 | $2 |
| Paclitaxel chemotherapy injection | 12,285 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 11,820 | $16 | $41 |
| 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. |
10,800 | $6 | $15 |
| Iron infusion (Monoferric) | 5,200 | $17 | $44 |
| 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. |
4,278 | $8 | $16 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
4,023 | $0 | $1 |
| Anti-nausea injection (Aloxi/palonosetron) | 2,750 | $1 | $2 |
| 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. |
2,016 | $95 | $256 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,839 | $10 | $21 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
1,268 | $12 | $31 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
1,234 | $13 | $27 |
| Cetirizine hydrochloride injection, 0.5 mg An injection containing 0.5 mg of cetirizine hydrochloride, an antihistamine medication. |
940 | $12 | $30 |
| 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. |
897 | $65 | $182 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
873 | $16 | $34 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
714 | $10 | $19 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
571 | $98 | $267 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
487 | $1 | $2 |
| 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. |
460 | $11 | $28 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
402 | $15 | $30 |
| 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. |
357 | $4 | $9 |
| 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. |
356 | $6 | $12 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
355 | $5 | $10 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
353 | $54 | $149 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
344 | $14 | $29 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
327 | $3 | $6 |
| 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. |
293 | $48 | $132 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
272 | $22 | $57 |
| Iron level test | 251 | $6 | $13 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
247 | $9 | $17 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
238 | $13 | $27 |
| 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. |
218 | $49 | $130 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
200 | $15 | $41 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
193 | $9 | $18 |
| 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. |
167 | $135 | $363 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
159 | $19 | $39 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
111 | $17 | $34 |
| New patient office visit, complex (60-74 min) | 104 | $159 | $447 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
92 | $1 | $4 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
80 | $29 | $59 |
| 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. |
78 | $19 | $38 |
| 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. |
74 | $4 | $9 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
69 | $7 | $13 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
59 | $63 | $198 |
| 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. |
51 | $25 | $65 |
| 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. |
50 | $6 | $12 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
46 | $9 | $19 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
39 | $8 | $17 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
33 | $5 | $9 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
27 | $25 | $51 |
| 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. |
24 | $5 | $10 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
20 | $6 | $13 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
17 | $3 | $5 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
14 | $6 | $13 |
| Fecal immunochemical test (FIT), 1-3 simultaneous A screening test that uses a stool sample to detect hidden blood in the feces, helping to identify potential colorectal cancer. |
13 | $18 | $36 |
| Free PSA test A blood test that measures the amount of unbound prostate-specific antigen in the blood. |
12 | $18 | $37 |
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.
23.6% high complexity
62.5% medium
13.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$27,775
Total received (2018-2024)
Avg $3,968/year across 7 years
Top 21% in FL for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
123
Companies
1,503
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
$4,852
2023
$5,586
2022
$4,485
2021
$3,785
2020
$3,090
2019
$2,993
2018
$2,985
Payments by company (2024)
Janssen Biotech, Inc.
$423
Novartis Pharmaceuticals Corporation
$376
AstraZeneca Pharmaceuticals LP
$355
PFIZER INC.
$347
Merck Sharp & Dohme LLC
$279
Celgene Corporation
$243
Takeda Pharmaceuticals U.S.A., Inc.
$215
GlaxoSmithKline, LLC.
$158
Lilly USA, LLC
$154
Daiichi Sankyo Inc.
$138
E.R. Squibb & Sons, L.L.C.
$137
Incyte Corporation
$130
Gilead Sciences, Inc.
$118
PharmaEssentia USA Corporation
$106
SOBI, INC
$103
Astellas Pharma US Inc
$95
GENZYME CORPORATION
$88
Regeneron Healthcare Solutions, Inc.
$81
Pharmacosmos Therapeutics Inc.
$76
Exelixis Inc.
$76
ARRAY BIOPHARMA INC
$71
SERVIER PHARMACEUTICALS LLC
$71
ABBVIE INC.
$67
Rigel Pharmaceuticals, Inc.
$67
BeiGene USA, Inc.
$62
Genentech USA, Inc.
$59
Boehringer Ingelheim Pharmaceuticals, Inc.
$54
Genmab U.S., Inc.
$51
Immunocore Limited
$50
TAIHO ONCOLOGY, INC.
$49
Fennec Pharmaceuticals, Inc.
$47
PUMA BIOTECHNOLOGY, INC.
$46
Eisai Inc.
$45
Aveo Pharmaceuticals, Inc.
$37
Novocure Inc.
$35
Myriad Genetic Laboratories, Inc.
$32
SpringWorks Therapeutics, Inc.
$31
Bayer Healthcare Pharmaceuticals Inc.
$31
Kite Pharma, Inc.
$29
TerSera Therapeutics LLC
$27
JAZZ PHARMACEUTICALS INC.
$25
Stemline Therapeutics Inc.
$24
Azurity Pharmaceuticals, Inc.
$23
Alnylam Pharmaceuticals Inc.
$22
Karyopharm Therapeutics Inc.
$18
Mirati Therapeutics, Inc.
$18
Tempus AI, Inc
$17
Alexion Pharmaceuticals, Inc.
$17
Sumitomo Pharma America, Inc.
$16
Amneal Pharmaceuticals LLC
$16
Top 3 companies account for 23.8% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$2,418
Janssen Biotech, Inc.
$1,698
AstraZeneca Pharmaceuticals LP
$1,610
PFIZER INC.
$1,439
Merck Sharp & Dohme Corporation
$1,222
Genentech USA, Inc.
$992
Celgene Corporation
$965
Lilly USA, LLC
$910
GENZYME CORPORATION
$829
Daiichi Sankyo Inc.
$803
Astellas Pharma US Inc
$779
Merck Sharp & Dohme LLC
$740
Incyte Corporation
$737
Seagen Inc.
$621
E.R. Squibb & Sons, L.L.C.
$610
Regeneron Healthcare Solutions, Inc.
$513
Takeda Pharmaceuticals U.S.A., Inc.
$511
Eisai Inc.
$496
Gilead Sciences, Inc.
$457
GlaxoSmithKline, LLC.
$452
Bayer HealthCare Pharmaceuticals Inc.
$408
BeiGene USA, Inc.
$359
Kite Pharma, Inc.
$344
SOBI, INC
$342
Pharmacyclics LLC, An AbbVie Company
$315
Boehringer Ingelheim Pharmaceuticals, Inc.
$314
NOVARTIS PHARMACEUTICALS CORPORATION
$307
Exelixis Inc.
$295
ARRAY BIOPHARMA INC
$263
Puma Biotechnology, Inc.
$259
EMD Serono, Inc.
$249
Rigel Pharmaceuticals, Inc.
$246
ACCORD HEALTHCARE, INC.
$199
Seattle Genetics, Inc.
$197
ABBVIE INC.
$185
West Therapeutics Development, LLC
$165
JAZZ PHARMACEUTICALS INC.
$163
PharmaEssentia USA Corporation
$158
Pharmacosmos Therapeutics Inc.
$152
PUMA BIOTECHNOLOGY, INC.
$140
SERVIER PHARMACEUTICALS LLC
$137
EISAI INC.
$131
Foundation Medicine, Inc.
$125
Amgen Inc.
$116
AVEO Pharmaceuticals, Inc.
$109
AbbVie Inc.
$107
Dova Pharmaceuticals
$99
Sobi, Inc
$90
Agios Pharmaceuticals, Inc.
$89
Bayer Healthcare Pharmaceuticals Inc.
$88
Stemline Therapeutics Inc.
$86
Taiho Oncology, Inc.
$86
Deciphera Pharmaceuticals Inc.
$79
Karyopharm Therapeutics Inc.
$78
Immunomedics, Inc.
$76
Jazz Pharmaceuticals Inc.
$75
Sysmex Inostics Inc
$75
Genmab U.S., Inc.
$73
Myovant Sciences Inc.
$73
CTI BioPharma Corp.
$69
TAIHO ONCOLOGY, INC.
$66
AMAG Pharmaceuticals, Inc.
$64
Clovis Oncology, Inc.
$64
Pharmacyclics LLC, an AbbVie Company
$62
GE HealthCare
$58
Verastem, Inc.
$57
Mirati Therapeutics, Inc.
$56
Sun Pharmaceutical Industries Inc.
$56
Servier Pharmaceuticals LLC
$51
Aveo Pharmaceuticals, Inc.
$51
Acrotech Biopharma LLC
$51
Heron Therapeutics, Inc.
$50
Immunocore Limited
$50
Partner Therapeutics, Inc.
$48
Helsinn Therapeutics (U.S.), Inc.
$48
Fennec Pharmaceuticals, Inc.
$47
Celltrion USA Inc.
$47
Amneal Pharmaceuticals LLC
$46
Shire North American Group Inc
$45
Myriad Genetic Laboratories, Inc.
$45
Janssen Pharmaceuticals, Inc
$44
INSYS Therapeutics Inc
$43
TerSera Therapeutics LLC
$41
Blueprint Medicines Corporation
$36
Fortovia Therapeutics, Inc.
$36
Novocure Inc.
$35
Midatech Pharma US Inc
$35
ADC Therapeutics America, Inc.
$34
Sumitomo Pharma America, Inc.
$34
MorphoSys, US Inc.
$33
SpringWorks Therapeutics, Inc.
$31
Alexion Pharmaceuticals, Inc.
$31
Octapharma USA, Inc.
$30
RECORDATI_RARE_DISEASES_INC.
$29
Spectrum Pharmaceuticals Inc.
$26
Kyowa Kirin, Inc.
$25
TG THERAPEUTICS, INC.
$24
TOLMAR Pharmaceuticals, Inc.
$23
Azurity Pharmaceuticals, Inc.
$23
Alnylam Pharmaceuticals Inc.
$22
Accord Healthcare, Inc.
$21
EUSA Pharma (US) LLC
$21
SUN PHARMACEUTICAL INDUSTRIES INC.
$21
AbbVie, Inc.
$20
Mylan Institutional Inc.
$20
Dendreon Pharmaceuticals LLC
$19
Acrotech Biopharma Inc.
$18
Shionogi Inc
$17
ImmunoGen, Inc.
$17
Tempus AI, Inc
$17
TG Therapeutics, Inc.
$17
Advanced Accelerator Applications
$15
Telix Pharmaceuticals
$14
G1 Therapeutics, Inc.
$14
Boston Scientific Corporation
$14
MAYNE PHARMA INC.
$13
IDORSIA PHARMACEUTICALS US INC
$13
Aurobindo Pharma USA, Inc.
$12
Epizyme, Inc.,
$12
Lexicon Pharmaceuticals, Inc.
$11
Global Blood Therapeutics, Inc.
$11
Ipsen Biopharmaceuticals, Inc
$11
Secura Bio, Inc.
$9
Top 3 companies account for 20.6% of all-time payments
Associated products mentioned in payments ›
ADAKVEO · ADCETRIS · ADVATE · ADYNOVATE · AFINITOR · AKYNZEO · ALIMTA · ALUNBRIG · AVASTIN · AYVAKIT · Abraxane · Alecensa · Aliqopa · Aranesp · Avastin · BAVENCIO · BELEODAQ · BESREMI · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Balversa · Bavencio · Blincyto · CABLIVI · CABOMETYX · CALQUENCE · CAMCEVI · CARVYKTI · CERDELGA · CEREZYME · CINVANTI · COSELA · CYRAMZA · Cabometyx · Cinvanti · Copiktra · DARZALEX · DOPTELET · Doptelet · ELAHERE · ELIGARD · ELITEK · ELREXFIO · ELZONRIS · EMPLICITI · ENHERTU · ENJAYMO · EPKINLY · ERBITUX · ERLEADA · EXKIVITY · Elahere · Enhertu · Epkinly · Erleada · FERAHEME · FOTIVDA · FOUNDATIONONE · FRUZAQLA · Fabhalta · Farydak · Fetroja · Folotyn · Fulphila · GAUCHER-DISEASE · GAVRETO · GAZYVA · GILOTRIF · Gelclair · HEMADY · Halaven · IBRANCE · ICLUSIG · ILLUCCIX · IMBRUVICA · IMFINZI · INFLECTRA · INJECTAFER · INLYTA · INREBIC · Imbruvica · Itovebi · JADENU · JAKAFI · JEMPERLI · JEVTANA · KANJINTI · KEYTRUDA · KIMMTRAK · KISQALI · KRAZATI · Kadcyla · Kyprolis · LENVIMA · LIBTAYO · LIBTAYO CEMIPLIMAB-RWLC INJECTION · LONSURF · LORBRENA · LUTATHERA · LYNPARZA · Lazanda · Lenvima · Leukine · Lonsurf · MEKINIST · MONJUVI · MONOFERRIC · MVASI · MYLOTARG · MYRISK · NERLYNX · NINLARO · Nerlynx · Nexavar · Nplate · Nubeqa · OGSIVEO · OJJAARA · ONCASPAR · ONPATTRO · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OXBRYTA · Odomzo · Onivyde · Optune · Optune Lua (NovoTTF-200T) · Orserdu · PADCEV · PEMAZYRE · PIQRAY · PLUVICTO · PROMACTA · PROVENGE · PYRUKYND · Padcev · Pedmark · Perjeta · Phesgo · Pomalyst · Poteligeo · QINLOCK · QUVIVIQ · Quzyttir · REBLOZYL · RETEVMO · RYBREVANT · RYDAPT · Revlimid · Rezlidhia · Rubraca · SANDOSTATIN · SANDOSTATIN LAR · SARCLISA · SCEMBLIX · SHINGRIX · SPRYCEL · SUTENT · SYLVANT · SYNDROS · Stivarga · Subsys · Sylvant · TABRECTA · TAGRISSO · TASIGNA · TAZVERIK · TECVAYLI · TEPMETKO · TEZSPIRE · TIBSOVO · TIVDAK · TUKYSA · Tavalisse · Tibsovo · Trodelvy · UKONIQ · ULTOMIRIS · VARUBI · VEGZELMA · VENCLEXTA · VERZENIO · VIVIMUSTA · VONVENDI · VOTRIENT · VYXEOS · Venclexta · Vitrakvi · Vonjo · WATCHMAN · WELIREG · WILATE · WILATE - VON WILLEBRAND FACTOR/COAGULATION FACTOR VIII COMPLEX (HUMAN) · XALKORI · XARELTO · XPOVIO · XTANDI · Xermelo · Xospata · Xtandi · YONSA · Yescarta · ZEJULA · ZEPZELCA · ZYKADIA · ZYTIGA · Zevalin · Zuplenz · myRisk
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
Hematology & oncology specialists in nearby ZIP areas
17
County median income
$80,633
Nearest hospital to ZIP centroid (approximate)
HCA FLORIDA SARASOTA DOCTORS HOSPITAL
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. Mamus is a mixed practice specialist, with above-average Medicare volume (top 5% in FL), 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. Mamus experienced with pembrolizumab injection (keytruda)?
Based on Medicare claims data, Dr. Mamus performed 27,200 pembrolizumab injection (keytruda) 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. Mamus receive payments from pharmaceutical companies?
Yes. Dr. Mamus received a total of $27,775 from 123 companies across 1,503 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. Mamus's costs compare to other hematology & oncology specialists in Sarasota?
Dr. Mamus's average Medicare payment per service is $12. 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. Mamus) 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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Which FL hematology & oncology specialists receive the most from drug and device companies.
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Janssen Biotech, Inc. Payments to Doctors
See all physicians who received payments from Janssen Biotech, Inc.
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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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