Medicare Enrolled
Dr. Tobenna Nwizu, M.D.
Internal Medicine · Rowlett, TX
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. Nwizu 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. Nwizu
Dr. Tobenna Nwizu is an internal medicine specialist in Rowlett, TX, with 18 years of NPI registration. Based on federal Medicare data, Dr. Nwizu performed 79,595 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Nwizu received a total of $374,612 from 69 pharmaceutical and/or device companies across 639 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. Nwizu 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 of NPI registration
▲ Top 1% volume in TX
$374,612 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗79,595
Medicare services
Top 1% in TX for internal medicine
Not available
Unique patients (not deduplicated)
$10
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. |
49,470 | $0 | $5 |
| Pembrolizumab injection (Keytruda) | 9,600 | $43 | $137 |
| Denosumab injection (Prolia/Xgeva) | 6,660 | $18 | $66 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
4,500 | $0 | $5 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
2,114 | $0 | $1 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
951 | $8 | $20 |
| 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. |
921 | $8 | $36 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
750 | $10 | $64 |
| Anti-nausea injection (Aloxi/palonosetron) | 470 | $1 | $114 |
| 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. |
415 | $91 | $368 |
| 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. |
287 | $130 | $496 |
| Iron level test | 275 | $6 | $27 |
| 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. |
275 | $9 | $35 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
274 | $13 | $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. |
257 | $21 | $157 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
202 | $2 | $300 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
188 | $96 | $707 |
| 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. |
148 | $48 | $313 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
145 | $53 | $211 |
| 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. |
143 | $11 | $96 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
141 | $9 | $56 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
117 | $7 | $29 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
103 | $12 | $108 |
| Immunoglobulin light chain measurement A blood test that measures the levels of immunoglobulin light chains, which are proteins produced by plasma cells. |
94 | $17 | $60 |
| 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. |
91 | $2 | $19 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
87 | $1 | $7 |
| Enhanced Oncology Model monthly payment This code represents the monthly enhanced oncology services payment under the Enhancing Oncology Model. It covers the administrative payment for enhanced services provided to eligible patients. |
85 | $70 | $70 |
| 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. |
79 | $65 | $250 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
73 | $21 | $161 |
| 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. |
72 | $6 | $31 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
63 | $4 | $26 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
59 | $14 | $100 |
| 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. |
58 | $18 | $99 |
| 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. |
58 | $49 | $344 |
| 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. |
53 | $10 | $75 |
| 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. |
47 | $6 | $34 |
| 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. |
41 | $106 | $565 |
| PSA test (prostate cancer screening) | 40 | $18 | $94 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
40 | $1 | $8 |
| 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. |
33 | $23 | $256 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
32 | $80 | $372 |
| Reticulated platelet measurement A blood test that measures the level of young, newly formed platelets in the body. |
29 | $35 | $143 |
| New patient office visit, complex (60-74 min) | 20 | $155 | $709 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 18 | $90 | $657 |
| 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. |
17 | $1,169 | $4,802 |
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.
63.2% high complexity
30.3% medium
6.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$374,612
Total received (2018-2024)
Avg $53,516/year across 7 years
Top 0% in TX for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
69
Companies
639
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
$28,099
2023
$68,276
2022
$61,944
2021
$25,592
2020
$23,201
2019
$46,687
2018
$120,812
Payments by company (2024)
PFIZER INC.
$14,631
AstraZeneca Pharmaceuticals LP
$11,433
Daiichi Sankyo Inc.
$186
Sirtex Medical Inc
$168
Astellas Pharma US Inc
$166
Merck Sharp & Dohme LLC
$147
Janssen Biotech, Inc.
$123
E.R. Squibb & Sons, L.L.C.
$113
Gilead Sciences, Inc.
$111
Novartis Pharmaceuticals Corporation
$101
ABBVIE INC.
$99
Tempus AI, Inc
$74
Adaptive Biotechnologies Corporation
$72
Karyopharm Therapeutics Inc.
$70
PharmaEssentia USA Corporation
$62
GlaxoSmithKline, LLC.
$62
Celgene Corporation
$50
SHIELD THERAPEUTICS INC
$48
SOBI, INC
$46
Incyte Corporation
$45
Lilly USA, LLC
$42
Emmaus Medical, Inc.
$34
Takeda Pharmaceuticals U.S.A., Inc.
$32
Aveo Pharmaceuticals, Inc.
$29
Eisai Inc.
$27
Regeneron Healthcare Solutions, Inc.
$26
ARRAY BIOPHARMA INC
$23
MorphoSys, US Inc.
$23
Stemline Therapeutics Inc.
$20
Genentech USA, Inc.
$19
ADC Therapeutics America, Inc.
$16
Top 3 companies account for 93.4% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$225,808
PFIZER INC.
$35,338
Eisai Inc.
$32,669
EISAI INC.
$28,672
Helsinn Therapeutics (U.S.), Inc.
$19,902
Global Blood Therapeutics, Inc.
$9,079
Exelixis Inc.
$4,213
CTI BioPharma Corp.
$2,789
Gilead Sciences, Inc.
$2,363
GlaxoSmithKline, LLC.
$2,174
Bayer HealthCare Pharmaceuticals Inc.
$1,800
Novartis Pharmaceuticals Corporation
$1,361
Rigel Pharmaceuticals, Inc.
$1,307
Daiichi Sankyo Inc.
$490
Sirtex Medical Inc
$468
E.R. Squibb & Sons, L.L.C.
$439
Incyte Corporation
$380
Janssen Biotech, Inc.
$357
Medtronic, Inc.
$341
Pharmacyclics LLC, An AbbVie Company
$316
Karyopharm Therapeutics Inc.
$274
NOVARTIS PHARMACEUTICALS CORPORATION
$250
Ipsen Biopharmaceuticals, Inc
$245
Merck Sharp & Dohme LLC
$242
Celgene Corporation
$200
Astellas Pharma US Inc
$194
Allergan Inc.
$173
Foundation Medicine, Inc.
$168
Pharmacyclics LLC, an AbbVie Company
$166
SOBI, INC
$139
Merck Sharp & Dohme Corporation
$139
DAVOL INC.
$135
PharmaEssentia USA Corporation
$127
Adaptive Biotechnologies Corporation
$111
Emmaus Medical, Inc.
$105
ABBVIE INC.
$99
Janssen Pharmaceuticals, Inc
$95
Heron Therapeutics, Inc.
$90
Jazz Pharmaceuticals Inc.
$87
Amgen Inc.
$82
Lilly USA, LLC
$81
Bayer Healthcare Pharmaceuticals Inc.
$78
Stemline Therapeutics Inc.
$75
Tempus AI, Inc
$74
Regeneron Healthcare Solutions, Inc.
$74
Myovant Sciences Inc.
$60
GENZYME CORPORATION
$60
ADC Therapeutics America, Inc.
$57
BeiGene USA, Inc.
$57
PUMA BIOTECHNOLOGY, INC.
$55
Pharming Healthcare, Inc.
$52
SHIELD THERAPEUTICS INC
$48
TerSera Therapeutics LLC
$46
Seagen Inc.
$39
Kyowa Kirin, Inc.
$39
MorphoSys, US Inc.
$38
Genentech USA, Inc.
$38
EMD Serono, Inc.
$34
Takeda Pharmaceuticals U.S.A., Inc.
$32
Myriad Genetic Laboratories, Inc.
$32
Aveo Pharmaceuticals, Inc.
$29
Kite Pharma, Inc.
$29
ARRAY BIOPHARMA INC
$23
Mirati Therapeutics, Inc.
$17
Sun Pharmaceutical Industries Inc.
$15
Blueprint Medicines Corporation
$12
Epizyme, Inc.,
$12
Dendreon Pharmaceuticals LLC
$12
Tactile Systems Technology Inc
$11
Top 3 companies account for 78.4% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · ADAKVEO · ADCETRIS · AFINITOR · AKEEGA · AKYNZEO · ALLODERM · Alecensa · BESREMI · BLENREP · BOSULIF · BRUKINSA · CABOMETYX · CALQUENCE · CINVANTI · Cabometyx · DARZALEX · Doptelet · ELAHERE · ELIQUIS · EMEND · ENHERTU · EPKINLY · ERLEADA · Endari · Enhertu · FLEXITOUCH · FOTIVDA · FOUNDATIONONE · Fabhalta · GAVRETO · IBRANCE · IMBRUVICA · IMFINZI · INFUGEM · INJECTAFER · INLYTA · Imbruvica · JAKAFI · JEMPERLI · JEVTANA · KEYTRUDA · KISQALI · KRAZATI · LENVIMA · LIBTAYO · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · MEKINIST · MONJUVI · NERLYNX · NINLARO · Nplate · Nubeqa · OJJAARA · ONIVYDE · OPDIVO · ORGOVYX · OSTEOCOOL RF ABLATION · OSTEOCOOL RF ABLATION SYSTEM · OXBRYTA · Orserdu · PADCEV · PHASIX · PLUVICTO · POTELIGEO · PRECISETUMOR · PROVENGE · Padcev · Pomalyst · PreciseTumor · Prolia · REBLOZYL · RYBREVANT · Rezlidhia · SANCUSO · SARCLISA · SIR-Spheres Microspheres · SOMATULINE DEPOT · STRATTICE · Stivarga · Sustol · TABRECTA · TAGRISSO · TALZENNA · TASIGNA · TAZVERIK · Tavalisse · Trodelvy · VENCLEXTA · VERZENIO · VONJO · Vanflyta · Vitrakvi · Vonjo · Vyloy · XALKORI · XARELTO · XPOVIO · XT CDX · XTANDI · Xospata · Xtandi · YERVOY · ZEPZELCA · ZOLADEX · Zydelig · clonoSEQ
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
Internal medicine physicians in nearby ZIP areas
1,762
County median income
$74,149
Nearest hospital to ZIP centroid (approximate)
BAYLOR SCOTT AND WHITE MEDICAL CENTER LAKE POINTE
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. Nwizu is a mixed practice specialist, with above-average Medicare volume (top 1% in TX), 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. Nwizu experienced with iron infusion (feraheme)?
Based on Medicare claims data, Dr. Nwizu performed 49,470 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. Nwizu receive payments from pharmaceutical companies?
Yes. Dr. Nwizu received a total of $374,612 from 69 companies across 639 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. Nwizu's costs compare to other internal medicine physicians in Rowlett?
Dr. Nwizu's average Medicare payment per service is $10. 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. Nwizu) 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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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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