Michelle Nguyen, MD
NPI 1811967920 · Gastroenterology Physician · Los Gatos, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Nguyen, MD is a Gastroenterology Physician provider in Los Gatos, CA (NPI 1811967920).
Provider details
- NPI number
- 1811967920
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74533 (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
20 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
1,559 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 647 | $58 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 373 | $75 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 92 | $66 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 83 | $61 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 60 | $282 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 95 | 44 |
| Famotidine | 83 | 33 |
| Omeprazole | 46 | 19 |
| Lipase/Protease/Amylasebrand: Creon | 32 | 12 |
| Lipase/Protease/Amylasebrand: Zenpep | 22 | — |
| Cholestyramine (with Sugar)brand: Cholestyramine | 20 | — |
| Ondansetronbrand: Ondansetron Odt |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,448 across 95 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
- 2006-01-23
- Last updated
- 2018-10-22
Frequently asked questions
- What is Michelle Nguyen's NPI number?
- Michelle Nguyen's National Provider Identifier (NPI) is 1811967920, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Nguyen's specialty?
- Michelle Nguyen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Nguyen located?
- Michelle Nguyen's practice location on file with NPPES is 14901 National Ave, Los Gatos, CA 95032-2637.
- What is Michelle Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Michelle Nguyen is (408) 471-2222.
- Does Michelle Nguyen accept Medicare?
- Michelle Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Nguyen's NPI active?
- Yes — Michelle Nguyen's NPI (1811967920) is active in the NPPES registry as of the last update on 2018-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.