Quick answers
- Does Hanh M. Nguyen-Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Hanh M. Nguyen-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 Hanh M. Nguyen-Castillo see?
- In 2024, CMS data shows 14 Original Medicare patients and 15 services for Hanh M. Nguyen-Castillo. This counts Original Medicare only and measures volume, not quality.
- What is Hanh M. Nguyen-Castillo's NPI number?
- 1770097115. 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 Hanh M. Nguyen-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 | 14 |
|---|---|
| Services billed to Medicare | 15 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Critical care, first 30-74 minutes (99291)11 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 pressure75%
- High cholesterol75%
Hospitals where Hanh M. Nguyen-Castillo works
Medicare's Facility Affiliation Data lists Hanh M. Nguyen-Castillo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Texas Health Harris Methodist Hurst-Euless-BedfordBedford, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450639
Practice locations
Addresses where Hanh M. Nguyen-Castillo is enrolled with Medicare (CMS data updated October 2, 2026).
- 221 W Colorado BlvdDallas, TX 75208 (469) 695‑2055
- 221 W Colorado Blvd, Suite 525Dallas, TX 75208
Group practices
Medicare enrollment lists Hanh M. Nguyen-Castillo as a member of these groups (CMS data updated October 2, 2026).
- Medhealth450 clinicians in the group
- Dallas Pulmonary and Critical Care PA182 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Other clinicians in Medhealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770097115 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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