Medicare Enrolled
Dr. Steven Mamus, M.D.
Hematology & Oncology · Sarasota, FL
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. 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 in Sarasota, FL, with 20 years in practice. Based on federal Medicare data, Dr. Mamus performed 116,400 Medicare services across 11,583 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mamus received a total of $27,775 from 123 pharmaceutical and/or device companies across 1503 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mamus is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice▲ Top 5% volume in FL$ $27,775 industry payments
Medicare Practice Summary
Medicare Utilization ↗116,400
Medicare services
Top 5% in FL for hematology & oncology
11,583
Unique beneficiaries
$12
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~5,820 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) | 27,200 | $17 | $44 |
| Iron infusion (Injectafer) | 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 | 10,800 | $6 | $15 |
| Iron infusion (Monoferric) | 5,200 | $17 | $44 |
| Complete blood count (CBC) with differential | 4,278 | $8 | $16 |
| Dexamethasone injection (steroid) | 4,023 | $0 | $1 |
| Anti-nausea injection (Aloxi/palonosetron) | 2,750 | $1 | $2 |
| Office visit, established patient (30-39 min) | 2,016 | $95 | $256 |
| Comprehensive metabolic blood panel | 1,839 | $10 | $21 |
| Injection of additional new drug or substance into vein | 1,268 | $12 | $31 |
| Lipid panel (cholesterol and triglycerides) | 1,234 | $13 | $27 |
| Injection, cetirizine hydrochloride, 0.5 mg | 940 | $12 | $30 |
| Office visit, established patient (20-29 min) | 897 | $65 | $182 |
| Thyroid stimulating hormone (TSH) test | 873 | $16 | $34 |
| Hemoglobin A1c test (diabetes monitoring) | 714 | $10 | $19 |
| Administration of chemotherapy into vein, 1 hour or less | 571 | $98 | $267 |
| Injection, diphenhydramine hcl, up to 50 mg | 487 | $1 | $2 |
| Drug injection, under skin or into muscle | 460 | $11 | $28 |
| Vitamin B-12 level test | 402 | $15 | $30 |
| Prothrombin time test (blood clotting) | 357 | $4 | $9 |
| Urine microalbumin test (kidney screening) | 356 | $6 | $12 |
| Creatinine test (kidney function) | 355 | $5 | $10 |
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 353 | $54 | $149 |
| Folic acid level test | 344 | $14 | $29 |
| Urinalysis with microscopic exam | 327 | $3 | $6 |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 293 | $48 | $132 |
| Administration of chemotherapy into vein, each additional hour | 272 | $22 | $57 |
| Iron level test | 251 | $6 | $13 |
| Iron binding capacity test | 247 | $9 | $17 |
| Ferritin level test (iron stores) | 238 | $13 | $27 |
| Administration of additional new drug or substance into vein, 1 hour or less | 218 | $49 | $130 |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 200 | $15 | $41 |
| Free thyroxine (T4) test | 193 | $9 | $18 |
| Office visit, established patient, complex (40-54 min) | 167 | $135 | $363 |
| Prostate cancer screening; prostate specific antigen test (psa) | 159 | $19 | $39 |
| Thyroid hormone, t3 measurement, free | 111 | $17 | $34 |
| New patient office visit, complex (60-74 min) | 104 | $159 | $447 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 92 | $1 | $4 |
| Vitamin D level test | 80 | $29 | $59 |
| Carcinoembryonic antigen (cea) protein level | 78 | $19 | $38 |
| Uric acid level test | 74 | $4 | $9 |
| Magnesium level test | 69 | $7 | $13 |
| Drawing of blood for a medical problem | 59 | $63 | $198 |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | 51 | $25 | $65 |
| Lactate dehydrogenase (enzyme) level | 50 | $6 | $12 |
| Immunoglobulin level test | 46 | $9 | $19 |
| Basic metabolic blood panel | 39 | $8 | $17 |
| Phosphate level test | 33 | $5 | $9 |
| Testosterone (hormone) level, total | 27 | $25 | $51 |
| C-reactive protein test (inflammation marker) | 24 | $5 | $10 |
| Complete blood count (CBC), automated | 20 | $6 | $13 |
| Sed rate test (inflammation marker) | 17 | $3 | $5 |
| Creatine kinase (cardiac enzyme) level, total | 14 | $6 | $13 |
| Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous | 13 | $18 | $36 |
| Psa (prostate specific antigen) measurement, free | 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. A higher procedure volume generally indicates more experience with that procedure.
22.9% high complexity
63.0% medium
14.0% 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
123
Companies
1,503
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
$26,629 (95.9%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$840 (3.0%)
Other
Charitable contributions, space rental, and other categories
$307 (1.1%)
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)
Consulting
Speaking
Meals & Travel
Research
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 total payments
Associated products mentioned in payments ›
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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 (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Equivalent to $24 per 100 Medicare services performed
Geographic Context
Hematology & Oncologys within 10 mi
17
Per 100K population
3.8
County median income
$80,633
Nearest hospital
HCA FLORIDA SARASOTA DOCTORS HOSPITAL
0.0 mi
0.0 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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Mamus is a mixed practice specialist, with above-average Medicare volume (top 5% in FL), and low-engagement industry engagement, with 20 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. 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. 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. Mamus receive payments from pharmaceutical companies?
Yes. Dr. Mamus received a total of $27,775 from 123 companies across 1,503 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. Mamus's costs compare to other hematology & oncologys 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 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. The Transparency Score measures 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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