Dr. Michael Diaz, MD
What this data tells you about Dr. Diaz
Dr. Michael Diaz is a medical oncology in St Petersburg, FL, with 20 years in practice. Based on federal Medicare data, Dr. Diaz performed 110,140 Medicare services across 2,747 unique beneficiaries.
Between the years covered by Open Payments, Dr. Diaz received a total of $21,618 from 110 pharmaceutical and/or device companies across 794 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in medical 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. Diaz 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 |
|---|---|---|---|
| Iron infusion (Feraheme) | 36,210 | $0 | $4 |
| Filgrastim injection (Zarxio) for white blood cells | 23,880 | $0 | $2 |
| Iron sucrose injection (Venofer) | 22,500 | $0 | $5 |
| Anti-nausea injection (aprepitant) | 8,840 | $1 | $5 |
| Dexamethasone injection (steroid) | 2,702 | $0 | $3 |
| Denosumab injection (Prolia/Xgeva) | 2,160 | $17 | $51 |
| Complete blood count (CBC) with differential | 1,583 | $8 | $29 |
| Epoetin alfa injection (Procrit) for anemia | 1,550 | $5 | $23 |
| Blood draw (venipuncture) | 1,371 | $8 | $9 |
| Office visit, established patient (30-39 min) | 1,097 | $94 | $339 |
| Anti-nausea injection (Aloxi/palonosetron) | 1,090 | $1 | $28 |
| Anti-nausea injection (ondansetron/Zofran) | 1,036 | $0 | $9 |
| Injection, leucovorin calcium, per 50 mg | 767 | $3 | $12 |
| Drug injection, under skin or into muscle | 701 | $10 | $69 |
| Injection, fluorouracil, 500 mg | 602 | $2 | $7 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 439 | $1 | $6 |
| Administration of chemotherapy into vein, 1 hour or less | 430 | $98 | $378 |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | 420 | $22 | $84 |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 358 | $47 | $189 |
| Injection of additional new drug or substance into vein | 303 | $12 | $61 |
| Injection, zoledronic acid, 1 mg | 245 | $7 | $69 |
| Office visit, established patient (20-29 min) | 217 | $67 | $239 |
| Infusion into a vein for hydration, each additional hour | 204 | $10 | $42 |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 165 | $15 | $56 |
| Injection, diphenhydramine hcl, up to 50 mg | 158 | $1 | $3 |
| Infusion, normal saline solution , 1000 cc | 146 | $2 | $7 |
| Administration of additional new drug or substance into vein, 1 hour or less | 122 | $49 | $178 |
| Administration of chemotherapy into vein, each additional hour | 104 | $21 | $79 |
| Infusion into a vein for hydration, 31-60 minutes | 84 | $24 | $156 |
| Automated urinalysis | 74 | $2 | $8 |
| Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l | 70 | $128 | $637 |
| Injection, methylprednisolone sodium succinate, up to 40 mg | 68 | $3 | $11 |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 60 | $16 | $59 |
| Initial hospital admission, high complexity | 56 | $132 | $556 |
| Infusion, normal saline solution, sterile (500 ml = 1 unit) | 49 | $1 | $7 |
| Hospital follow-up visit, high complexity | 48 | $94 | $285 |
| Injection of drug or substance into vein | 46 | $26 | $156 |
| New patient office visit (45-59 min) | 42 | $130 | $453 |
| Infusion into a vein for therapy, prevention, or diagnosis concurrent with another infusion | 32 | $15 | $56 |
| Administration of additional new drug or substance into vein using push technique | 32 | $42 | $170 |
| Office visit, established patient, complex (40-54 min) | 27 | $140 | $474 |
| Red blood count, automated test | 15 | $4 | $10 |
| Red blood count automated, with additional calculations | 13 | $5 | $20 |
| New patient office visit (30-44 min) | 13 | $88 | $298 |
| Transitional care management services for problem of high complexity | 11 | $214 | $722 |
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 ›
Most payments (87%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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. Diaz is a mixed practice specialist, with above-average Medicare volume (top 23% 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. Diaz experienced with iron infusion (feraheme)?
Does Dr. Diaz receive payments from pharmaceutical companies?
How do Dr. Diaz's costs compare to other medical oncologys in St Petersburg?
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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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