Dr. John Mathews
What this data tells you about Dr. Mathews
Dr. John Mathews is a medical oncology specialist in Dallas, TX, with 15 years of NPI registration. Based on federal Medicare data, Dr. Mathews performed 10,238 Medicare services across 2,151 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mathews received a total of $5,966 from 14 pharmaceutical and/or device companies across 66 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in medical oncology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mathews 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.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| Hospital follow-up visit, moderate complexity | 2,017 | $62 | $247 |
| Comprehensive metabolic blood panel | 892 | $10 | $64 |
| Magnesium level test | 890 | $7 | $29 |
| Lactate dehydrogenase (enzyme) level | 884 | $6 | $31 |
| Dexamethasone injection (steroid) | 605 | $0 | $1 |
| Phosphate level test | 578 | $5 | $24 |
| Complete blood count (CBC) with differential | 566 | $8 | $36 |
| Office visit, established patient (30-39 min) | 540 | $96 | $368 |
| Blood draw (venipuncture) | 415 | $8 | $20 |
| Microscopic examination for white blood cells with manual cell count | 330 | $4 | $22 |
| Complete blood count (CBC), automated | 330 | $6 | $34 |
| Anti-nausea injection (Aloxi/palonosetron) | 240 | $1 | $114 |
| Tacrolimus level | 145 | $13 | $101 |
| Injection, magnesium sulfate, per 500 mg | 138 | $1 | $6 |
| Sirolimus level | 114 | $13 | $71 |
| Administration of vaccine, each additional vaccine | 111 | $12 | $58 |
| Measurement of immunoglobulin light chains | 108 | $17 | $60 |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | 102 | $23 | $157 |
| Reticulated (young) platelet measurement | 99 | $35 | $143 |
| Administration of chemotherapy into vein, 1 hour or less | 93 | $105 | $707 |
| Administration of chemotherapy into vein, each additional hour | 85 | $23 | $161 |
| Hospital discharge day management, 30 minutes or less | 85 | $63 | $249 |
| Initial hospital admission, moderate complexity | 83 | $95 | $470 |
| Drug injection, under skin or into muscle | 69 | $11 | $96 |
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 63 | $58 | $211 |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 61 | $51 | $313 |
| Injection of additional new drug or substance into vein | 54 | $12 | $108 |
| Hospital follow-up visit, low complexity | 53 | $39 | $135 |
| Critical care, first 30-74 min | 53 | $167 | $943 |
| Injection, diphenhydramine hcl, up to 50 mg | 48 | $1 | $7 |
| Pneumococcal vaccine, 13-valent | 39 | $253 | $570 |
| Hepatitis b vaccine, adult dosage (3 dose schedule) | 39 | $69 | $164 |
| Office visit, established patient (20-29 min) | 38 | $66 | $250 |
| Pneumonia vaccine administration | 38 | $31 | $58 |
| Administration of hepatitis b vaccine | 38 | $31 | $58 |
| Infusion, normal saline solution , 1000 cc | 38 | $2 | $19 |
| Administration of additional new drug or substance into vein, 1 hour or less | 27 | $52 | $344 |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 26 | $16 | $100 |
| Infusion into a vein for hydration, 31-60 minutes | 19 | $26 | $256 |
| Irrigation of implanted venous access drug delivery device | 18 | $20 | $114 |
| New patient office visit (45-59 min) | 18 | $132 | $565 |
| Unclassified drugs | 18 | $8 | $31 |
| Biopsy and aspiration of bone marrow sample for diagnosis | 16 | $140 | $523 |
| Transplantation of patient-derived stem cells | 15 | $139 | $2,334 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
The majority of payments (67%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Geographic Context
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. Mathews is a mixed practice specialist, with moderate Medicare volume, with consulting-driven industry engagement, with 15 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
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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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