Dr. Megan Castillo, PA
What this data tells you about Dr. Castillo
Dr. Megan Castillo is a physician assistant in Spring, TX, with 9 years of NPI registration. Based on federal Medicare data, Dr. Castillo performed 307 Medicare services across 233 unique beneficiaries.
Between the years covered by Open Payments, Dr. Castillo received a total of $4,122 from 25 pharmaceutical and/or device companies across 141 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in physician assistant. 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. Castillo 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 |
|---|---|---|---|
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
76 | $0 | $6 |
| Basic blood chemical test (calcium, ionized) A blood test that measures basic chemical levels, specifically including calcium and ionized calcium. |
37 | $13 | $27 |
| Red blood cell concentration measurement A laboratory test that measures the concentration of red blood cells in the blood. |
37 | $2 | $6 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
36 | $3 | $7 |
| Home visit, new patient, moderate complexity A home visit for a new patient involving moderate medical decision making, lasting at least 60 minutes. |
22 | $88 | $375 |
| Lactic acid level | 19 | $11 | $26 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
16 | $8 | $37 |
| Home visit, established patient, moderate complexity A home visit for an established patient involving moderate medical decision making. The visit requires at least 40 minutes of time if time is used to determine the level of service. |
16 | $80 | $375 |
| Simple insertion of temporary bladder tube A procedure to place a temporary tube into the bladder. This allows for the drainage of urine from the bladder. |
13 | $42 | $134 |
| 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. |
13 | $27 | $151 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
11 | $23 | $96 |
| Home visit, established patient, low complexity A physician visits an existing patient at their residence to provide care involving a low level of medical decision making. The visit lasts at least 30 minutes. |
11 | $51 | $375 |
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
4.2 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. Castillo is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 11% of TX peers.
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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