Anh Nguyen
NPI 1265759823 · Gastroenterology Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anh Nguyen is a Gastroenterology Physician provider in Dallas, TX (NPI 1265759823).
Provider details
- NPI number
- 1265759823
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- P4792 (TX)
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
595 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 129 | $126 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 91 | $178 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 89 | $89 |
| Study of Esophageal Sensation By Balloon Distension91040 | 61 | $48 |
| Study of Esophagus to Assess Movement91010 | 49 | $61 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 96 | 37 |
| Esomeprazole Magnesium | 79 | 40 |
| Nortriptyline Hcl | 40 | 15 |
| Sucralfate | 38 | 21 |
| Rabeprazole Sodium | 37 | 12 |
| Pantoprazole Sodium | 37 | 17 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 27 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$929 across 15 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
- 2010-04-22
- Last updated
- 2025-10-29
- Certified
- 2025-10-29
Frequently asked questions
- What is Anh Nguyen's NPI number?
- Anh Nguyen's National Provider Identifier (NPI) is 1265759823, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anh Nguyen's specialty?
- Anh Nguyen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Anh Nguyen located?
- Anh Nguyen's practice location on file with NPPES is 3434 Swiss Ave Ste 200, Dallas, TX 75204-6251.
- What is Anh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Anh Nguyen is (469) 800-7050.
- Does Anh Nguyen accept Medicare?
- Anh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anh Nguyen's NPI active?
- Yes — Anh Nguyen's NPI (1265759823) is active in the NPPES registry as of the last update on 2025-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.