Quick answers
- Does Juanita Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Juanita Castillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Juanita Castillo see?
- In 2024, CMS data shows 47 Original Medicare patients and 359 services for Juanita Castillo. This counts Original Medicare only and measures volume, not quality.
- What is Juanita Castillo's NPI number?
- 1750554093. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Juanita Castillo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 47 |
|---|---|
| Services billed to Medicare | 359 |
| Different services or procedures | 57 |
| Participating Medicare provider | Yes |
| Average age of these patients | 58 |
Most frequent services
- Blood test, comprehensive group of blood chemicals (80053)43 services
- Blood test, lipids (cholesterol and triglycerides) (80061)38 services
- Hemoglobin a1c level (83036)37 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)29 services
- Blood test, thyroid stimulating hormone (tsh) (84443)21 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure72%
- High cholesterol64%
- Diabetes45%
- Anxiety40%
- Depression34%
Practice locations
Addresses where Juanita Castillo is enrolled with Medicare (CMS data updated October 2, 2026).
- 8416 Old McGregor RdWoodway, TX 76712 (254) 307‑3997
Group practices
Medicare enrollment lists Juanita Castillo as a member of this group (CMS data updated October 2, 2026).
- Vesper Medical Care PLLC31 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Other clinicians in Vesper Medical Care PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Texas A & M University System, Hsc, College Of Medicine |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750554093 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians