Duyen Nguyen, D.O.
NPI 1619288347 · Allergy & Immunology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duyen Nguyen, D.O. is a Allergy & Immunology Physician provider in Houston, TX (NPI 1619288347).
Provider details
- NPI number
- 1619288347
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- M8871 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
3,534 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,561 | $4 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 746 | $8 |
| Professional Service for Multiple Injections of Allergen95117 | 469 | $12 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 391 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 117 | $128 |
| Test to Measure Rate of Airflow94375 | 60 | $39 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 134 | 52 |
| Azelastine Hcl | 70 | 29 |
| Fluticasone Propionate | 67 | 28 |
| Ipratropium Bromide | 66 | 20 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 62 | 40 |
| Hydroxyzine Hcl | 54 | 23 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 46 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,692 across 72 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
- 2010-06-28
- Last updated
- 2015-08-26
Frequently asked questions
- What is Duyen Nguyen's NPI number?
- Duyen Nguyen's National Provider Identifier (NPI) is 1619288347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duyen Nguyen's specialty?
- Duyen Nguyen is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Duyen Nguyen located?
- Duyen Nguyen's practice location on file with NPPES is 13114 Fm 1960 Road West, Houston, TX 77065.
- What is Duyen Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Duyen Nguyen is (281) 970-7788.
- Does Duyen Nguyen accept Medicare?
- Duyen Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duyen Nguyen's NPI active?
- Yes — Duyen Nguyen's NPI (1619288347) is active in the NPPES registry as of the last update on 2015-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.