Tu Nguyen, MD
NPI 1497841969 · Gastroenterology Physician · Menlo Park, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tu Nguyen, MD is a Gastroenterology Physician provider in Menlo Park, CA (NPI 1497841969).
Provider details
- NPI number
- 1497841969
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A89328 (CA)
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
19 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
1,615 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 434 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 312 | $152 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 171 | $280 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 159 | $106 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 158 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 259 | 256 |
| Pantoprazole Sodium | 204 | 74 |
| Famotidine | 133 | 47 |
| Omeprazole | 120 | 46 |
| Lipase/Protease/Amylasebrand: Creon | 45 | — |
| Mesalamine | 27 | — |
| Sucralfate | 24 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$239 across 2 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
- 2006-10-04
- Last updated
- 2024-04-15
- Certified
- 2024-04-15
Frequently asked questions
- What is Tu Nguyen's NPI number?
- Tu Nguyen's National Provider Identifier (NPI) is 1497841969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tu Nguyen's specialty?
- Tu Nguyen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Tu Nguyen located?
- Tu Nguyen's practice location on file with NPPES is 1300 Crane St, Menlo Park, CA 94025-4260.
- What is Tu Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Tu Nguyen is (650) 498-6500.
- Does Tu Nguyen accept Medicare?
- Tu Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tu Nguyen's NPI active?
- Yes — Tu Nguyen's NPI (1497841969) is active in the NPPES registry as of the last update on 2024-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.