Duy Nguyen, M.D.
NPI 1558688739 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duy Nguyen, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in San Antonio, TX (NPI 1558688739).
Provider details
- NPI number
- 1558688739
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD208091 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
141 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 43 | $225 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 40 | $185 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 27 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $172 |
| Removal of Lymph Nodes of Chest Cavity Using an Endoscope32674 | 14 | $203 |
Typical Medicare-allowed amounts for these services range $124–$225 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$649 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-27
- Last updated
- 2021-12-29
- Certified
- 2021-12-29
Frequently asked questions
- What is Duy Nguyen's NPI number?
- Duy Nguyen's National Provider Identifier (NPI) is 1558688739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duy Nguyen's specialty?
- Duy Nguyen is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Duy Nguyen located?
- Duy Nguyen's practice location on file with NPPES is 8300 Floyd Curl Dr Fl 3, San Antonio, TX 78229-3931.
- What is Duy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Duy Nguyen is (210) 450-0999.
- Does Duy Nguyen accept Medicare?
- Duy Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duy Nguyen's NPI active?
- Yes — Duy Nguyen's NPI (1558688739) is active in the NPPES registry as of the last update on 2021-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.