Medicare Enrolled
Dr. Robert Weaver, MD
Hematology · Tampa, 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. Weaver 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. Weaver?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Weaver
Dr. Robert Weaver is a hematology specialist in Tampa, FL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Weaver performed 68,873 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Weaver received a total of $72,847 from 97 pharmaceutical and/or device companies across 982 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. Weaver 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
▲ 68,873 Medicare services
$72,847 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 | 87855 | Clear | January 31, 2027 | — |
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 ↗68,873
Medicare services
Bottom 44% in FL for hematology
Not available
Unique patients (not deduplicated)
$6
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 (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
28,050 | $0 | $4 |
| Iron sucrose injection (Venofer) An injection of iron sucrose used to replenish iron levels in the body. |
13,100 | $0 | $5 |
| 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. |
5,725 | $6 | $23 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
5,515 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 3,360 | $18 | $51 |
| Anti-nausea injection (aprepitant) | 3,120 | $1 | $5 |
| Iron infusion (Monoferric) | 2,800 | $16 | $57 |
| 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. |
1,274 | $8 | $29 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,264 | $8 | $9 |
| 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. |
718 | $10 | $69 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
651 | $0 | $3 |
| 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. |
547 | $94 | $339 |
| Anti-nausea injection (Aloxi/palonosetron) | 450 | $1 | $28 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
389 | $1 | $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. |
226 | $47 | $189 |
| 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. |
223 | $64 | $239 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
193 | $12 | $61 |
| Anti-nausea injection (ondansetron/Zofran) | 152 | $0 | $9 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
138 | $97 | $378 |
| 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. |
85 | $10 | $42 |
| 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. |
76 | $22 | $84 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
73 | $16 | $59 |
| 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. |
73 | $2 | $7 |
| 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. |
63 | $24 | $156 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
62 | $1 | $3 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 60 | $399 | $680 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
56 | $22 | $79 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
56 | $3 | $11 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
55 | $57 | $351 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
54 | $1,096 | $3,706 |
| 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. |
47 | $122 | $453 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
43 | $166 | $566 |
| 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. |
36 | $49 | $178 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
35 | $4 | $10 |
| 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. |
29 | $140 | $474 |
| 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. |
26 | $4 | $15 |
| New patient office visit, complex (60-74 min) | 19 | $164 | $585 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
15 | $50 | $372 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
15 | $28 | $156 |
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.
45.7% high complexity
49.0% medium
5.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$72,847
Total received (2018-2024)
Avg $10,407/year across 7 years
Top 7% in FL for hematology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
97
Companies
982
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
$4,233
2023
$9,409
2022
$2,911
2021
$10,699
2020
$11,440
2019
$16,668
2018
$17,487
Payments by company (2024)
Rigel Pharmaceuticals, Inc.
$478
PFIZER INC.
$383
Celgene Corporation
$369
Gilead Sciences, Inc.
$243
Lilly USA, LLC
$227
Daiichi Sankyo Inc.
$226
E.R. Squibb & Sons, L.L.C.
$201
Novartis Pharmaceuticals Corporation
$191
Exelixis Inc.
$181
Eisai Inc.
$143
GlaxoSmithKline, LLC.
$135
ABBVIE INC.
$125
Teleflex LLC
$118
AstraZeneca Pharmaceuticals LP
$106
Merck Sharp & Dohme LLC
$105
SOBI, INC
$98
ARRAY BIOPHARMA INC
$91
Janssen Biotech, Inc.
$83
Incyte Corporation
$80
Mirati Therapeutics, Inc.
$69
Astellas Pharma US Inc
$67
GENZYME CORPORATION
$59
Genentech, Inc.
$48
Aadi Bioscience, Inc.
$47
PharmaEssentia USA Corporation
$46
Tempus AI, Inc
$45
JAZZ PHARMACEUTICALS INC.
$41
Amgen Inc.
$38
TerSera Therapeutics LLC
$30
Blueprint Medicines Corporation
$23
Pharmacosmos Therapeutics Inc.
$23
RECORDATI_RARE_DISEASES_INC.
$22
Aveo Pharmaceuticals, Inc.
$21
Takeda Pharmaceuticals U.S.A., Inc.
$20
Ipsen Biopharmaceuticals, Inc
$19
Karyopharm Therapeutics Inc.
$17
TAIHO ONCOLOGY, INC.
$14
Top 3 companies account for 29.0% of 2024 payments
All-time payments by company (2018-2024) ›
Eisai Inc.
$19,573
Genentech USA, Inc.
$14,187
Immunomedics, Inc.
$7,238
EISAI INC.
$6,735
AstraZeneca Pharmaceuticals LP
$5,895
E.R. Squibb & Sons, L.L.C.
$1,868
ImmunoGen, Inc.
$1,639
Celgene Corporation
$1,515
Novartis Pharmaceuticals Corporation
$1,465
PFIZER INC.
$903
Lilly USA, LLC
$863
Janssen Biotech, Inc.
$774
Gilead Sciences, Inc.
$645
Daiichi Sankyo Inc.
$624
GENZYME CORPORATION
$561
Exelixis Inc.
$544
Rigel Pharmaceuticals, Inc.
$478
TETRAPHASE PHARMACEUTICALS, INC.
$455
Amgen Inc.
$417
Incyte Corporation
$411
Seagen Inc.
$391
Bayer HealthCare Pharmaceuticals Inc.
$318
TESARO, Inc.
$272
Merck Sharp & Dohme LLC
$250
Takeda Pharmaceuticals U.S.A., Inc.
$245
GlaxoSmithKline, LLC.
$243
Merck Sharp & Dohme Corporation
$223
JAZZ PHARMACEUTICALS INC.
$221
Pharmacyclics LLC, An AbbVie Company
$189
Stemline Therapeutics Inc.
$188
ABBVIE INC.
$186
Ipsen Biopharmaceuticals, Inc
$176
BeiGene USA, Inc.
$172
Boehringer Ingelheim Pharmaceuticals, Inc.
$147
Mirati Therapeutics, Inc.
$137
Foundation Medicine, Inc.
$136
Paratek Pharmaceuticals, Inc.
$124
Astellas Pharma US Inc
$123
Teleflex LLC
$118
Bard Peripheral Vascular, Inc.
$109
SOBI, INC
$98
Pharmacyclics LLC, an AbbVie Company
$97
Sirtex Medical Inc
$96
ARRAY BIOPHARMA INC
$91
Genentech, Inc.
$86
Blueprint Medicines Corporation
$85
TerSera Therapeutics LLC
$78
PUMA BIOTECHNOLOGY, INC.
$74
Sun Pharmaceutical Industries Inc.
$65
Seattle Genetics, Inc.
$60
CSL Behring
$58
G1 Therapeutics, Inc.
$56
TG Therapeutics, Inc.
$52
Myriad Genetic Laboratories, Inc.
$50
EMD Serono, Inc.
$47
Aadi Bioscience, Inc.
$47
CTI BioPharma Corp.
$46
PharmaEssentia USA Corporation
$46
Tempus AI, Inc
$45
Regeneron Healthcare Solutions, Inc.
$44
Puma Biotechnology, Inc.
$43
Heron Therapeutics, Inc.
$42
AVEO Pharmaceuticals, Inc.
$38
Medtronic, Inc.
$36
Alexion Pharmaceuticals, Inc.
$31
Karyopharm Therapeutics Inc.
$30
Sobi, Inc
$30
TAIHO ONCOLOGY, INC.
$29
AMAG Pharmaceuticals, Inc.
$29
Shire North American Group Inc
$28
Bayer Healthcare Pharmaceuticals Inc.
$26
Teva Pharmaceuticals USA, Inc.
$26
Pharmacosmos Therapeutics Inc.
$23
Epizyme, Inc.,
$22
RECORDATI_RARE_DISEASES_INC.
$22
Aveo Pharmaceuticals, Inc.
$21
Deciphera Pharmaceuticals Inc.
$18
Taiho Oncology, Inc.
$18
AbbVie, Inc.
$17
Progenics Pharmaceuticals, Inc.
$17
GE HealthCare
$16
MorphoSys, US Inc.
$16
Agios Pharmaceuticals, Inc.
$16
MEDIVATION FIELD SOLUTIONS LLC
$16
Verastem, Inc.
$16
AbbVie Inc.
$15
Sumitomo Pharma America, Inc.
$15
Novocure Inc.
$15
Kite Pharma, Inc.
$14
Acrotech Biopharma LLC
$14
Helsinn Therapeutics (U.S.), Inc.
$13
ADC Therapeutics America, Inc.
$12
Lexicon Pharmaceuticals, Inc.
$12
Janssen Pharmaceuticals, Inc
$12
Secura Bio, Inc.
$10
SECURA BIO, INC.
$9
Veracyte, Inc.
$1
Top 3 companies account for 56.3% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AFINITOR · ALUNBRIG · AYVAKIT · Abraxane · Afstyla · Alecensa · Aliqopa · Avastin · BELEODAQ · BENDEKA · BESREMI · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Bavencio · Blincyto · CABLIVI · CABOMETYX · CALQUENCE · CHANTIX · CINVANTI · COPIKTRA · COSELA · CYRAMZA · Cabometyx · Copiktra · DARZALEX · DOPTELET · ELAHERE · ELIQUIS · ELITEK · ELREXFIO · ELZONRIS · EMEND · EMPLICITI · ENHERTU · ENJAYMO · EPKINLY · ERLEADA · EXKIVITY · Elahere · Enhertu · FERAHEME · FOTIVDA · FOUNDATIONONE · Fabhalta · Farydak · Fyarro · GAUCHER-DISEASE · GAZYVA · GILOTRIF · Halaven · Herceptin · IBRANCE · IMBRUVICA · IMFINZI · INFLECTRA · INJECTAFER · INLYTA · INREBIC · INTELLIS · Imbruvica · JADENU · JAKAFI · JAYPIRCA · JEVTANA · KEYTRUDA · KISQALI · KRAZATI · Kyprolis · LIBTAYO · LONSURF · LORBRENA · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · MEKINIST · MONJUVI · MONOFERRIC · NERLYNX · NINLARO · NUZYRA · Nerlynx · Neulasta · Nexavar · Nplate · Nubeqa · ODOMZO · OJJAARA · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · OSTEOCOOL RF ABLATION SYSTEM · Oncology · Onivyde · Orserdu · PADCEV · PEMAZYRE · PIQRAY · PLUVICTO · PROMACTA · PYLARIFY · PYRUKYND · Perjeta · Pomalyst · Prolia · QINLOCK · REBLOZYL · RETEVMO · RYBREVANT · Revlimid · Rezlidhia · SANDOSTATIN · SARCLISA · SCEMBLIX · SIR-Spheres Microspheres · SOMATULINE DEPOT · SUTENT · SYLVANT · Somatuline Depot · Stivarga · TAGRISSO · TASIGNA · TAXOTERE · TAZVERIK · TECENTRIQ · TECVAYLI · TIVDAK · TUKYSA · Trodelvy · UKONIQ · ULTOMIRIS · UROLIFT · VENCLEXTA · VERZENIO · VONJO · VOTRIENT · Venclexta · Vitrakvi · Vonjo · XALKORI · XARELTO · XERAVA · XPOVIO · XT CDX · XTANDI · Xerava · Xermelo · Xospata · ZEJULA · ZEPZELCA · ZYKADIA · Zoladex · 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
Hematologists in nearby ZIP areas
45
County median income
$75,011
Nearest hospital to ZIP centroid (approximate)
ADVENTHEALTH TAMPA
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. Weaver is a mixed practice specialist, with moderate Medicare volume, 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. Weaver experienced with iron infusion (feraheme)?
Based on Medicare claims data, Dr. Weaver performed 28,050 iron infusion (feraheme) 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. Weaver receive payments from pharmaceutical companies?
Yes. Dr. Weaver received a total of $72,847 from 97 companies across 982 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. Weaver's costs compare to other hematologists in Tampa?
Dr. Weaver's average Medicare payment per service is $6. 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. Weaver) 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 →
Explore related providers
Same specialty & city
Hematologists in Tampa
Browse hematologists in Tampa ranked by procedure volume and transparency data.
Highest volume
Top Hematologists in FL
Hematologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Hematologists in FL
Which FL hematologists receive the most from drug and device companies.
By company
Eisai Inc. Payments to Doctors
See all physicians who received payments from Eisai Inc.
By company
Genentech USA, Inc. Payments to Doctors
See all physicians who received payments from Genentech USA, Inc.
By company
Immunomedics, Inc. Payments to Doctors
See all physicians who received payments from Immunomedics, Inc.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology