Quick answers
- Does Duy C. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Duy C. Nguyen 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 Duy C. Nguyen see?
- In 2024, CMS data shows 93 Original Medicare patients and 214 services for Duy C. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Duy C. Nguyen's NPI number?
- 1558688739. 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 Duy C. Nguyen, 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 | 93 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)43 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)40 services
- Telephone medical discussion with physician, 21-30 minutes (99443)27 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)17 services
- Removal of lymph nodes of chest cavity using an endoscope (32674)14 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 cholesterol73%
- High blood pressure66%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)57%
- COPD52%
- Arthritis46%
- Ischemic heart disease38%
Hospitals where Duy C. Nguyen works
Medicare's Facility Affiliation Data lists Duy C. Nguyen 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.
- Legacy Emanuel Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380007
- Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380017
- Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009
Practice locations
Addresses where Duy C. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 501 N Graham St, Suite 200Portland, OR 97227 (503) 413‑4488
- 501 N Graham St, Suite 220Portland, OR 97227 (503) 413‑6200
Group practices
Medicare enrollment lists Duy C. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Legacy Clinics LLC713 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Other clinicians in Legacy Clinics LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558688739 |
| 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