Dr. Mary Castro, MD
What this data tells you about Dr. Castro
Dr. Mary Castro is a family medicine in Nederland, TX, with 19 years in practice. Based on federal Medicare data, Dr. Castro performed 1,905 Medicare services across 1,469 unique beneficiaries.
Between the years covered by Open Payments, Dr. Castro received a total of $6,281 from 39 pharmaceutical and/or device companies across 198 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. 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. Castro 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 |
|---|---|---|---|
| Blood draw (venipuncture) | 258 | $8 | $15 |
| Office visit, established patient (30-39 min) | 220 | $75 | $315 |
| Comprehensive metabolic blood panel | 211 | $10 | $39 |
| Lipid panel (cholesterol and triglycerides) | 206 | $13 | $50 |
| Complete blood count (CBC) with differential | 198 | $8 | $29 |
| Annual wellness visit, follow-up | 100 | $122 | $359 |
| Urinalysis using microscope | 78 | $3 | $11 |
| Nursing facility visit, low complexity | 76 | $46 | $203 |
| Hemoglobin A1c test (diabetes monitoring) | 70 | $9 | $36 |
| Automated urinalysis | 66 | $2 | $8 |
| Office visit, established patient (20-29 min) | 64 | $47 | $213 |
| Thyroid stimulating hormone (TSH) test | 63 | $16 | $62 |
| Thyroxine (thyroid chemical), total | 36 | $6 | $25 |
| Thyroid hormone evaluation | 36 | $6 | $24 |
| Thyroid hormone, t3 measurement, total | 36 | $13 | $53 |
| Telephone medical discussion with physician, 11-20 minutes | 24 | $53 | $233 |
| Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | 24 | $28 | $120 |
| Drug injection, under skin or into muscle | 23 | $9 | $59 |
| Urine microalbumin test (kidney screening) | 21 | $6 | $41 |
| Creatinine test (kidney function) | 21 | $5 | $21 |
| Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free | 19 | $33 | $88 |
| Flu vaccine administration | 19 | $29 | $45 |
| New patient office visit (45-59 min) | 14 | $84 | $482 |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 11 | $92 | $382 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 11 | $39 | $156 |
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 (81%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 10% for family medicine in TX.
Geographic Context
8.2 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. Castro is a clinical cardiology specialist, with above-average Medicare volume (top 14% in TX), and high industry engagement (low-engagement, top 10%), with 19 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. Castro experienced with blood draw (venipuncture)?
Does Dr. Castro receive payments from pharmaceutical companies?
How do Dr. Castro's costs compare to other family medicines in Nederland?
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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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