Ethan Nguyen, MD
NPI 1568475614 · Internal Medicine Physician · Vista, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Nguyen, MD is a Internal Medicine Physician provider in Vista, CA (NPI 1568475614).
Provider details
- NPI number
- 1568475614
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 043290 (CT)
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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
477 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 292 | $135 |
| Assessment of Emotional Or Behavioral Problems96127 | 73 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $96 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 31 | $133 |
| Removal of Impacted Ear Wax By Washing69209 | 14 | $20 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 486 | 149 |
| Levothyroxine Sodium | 401 | 123 |
| Amlodipine Besylate | 349 | 107 |
| Rosuvastatin Calcium | 256 | 87 |
| Losartan Potassium | 248 | 82 |
| Lisinopril | 240 | 72 |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (2)
- 2067 W Vista Way Ste 200Vista, CA 92083-6033Phone: (760) 726-2180Fax: (760) 726-9928
- 340 Bantam RdLitchfield, CT 06759-3318Phone: (860) 567-9493Fax: (860) 567-3933
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is Ethan Nguyen's NPI number?
- Ethan Nguyen's National Provider Identifier (NPI) is 1568475614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Nguyen's specialty?
- Ethan Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ethan Nguyen located?
- Ethan Nguyen's practice location on file with NPPES is 145 Thunder Dr, Vista, CA 92083-6010.
- What is Ethan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ethan Nguyen is (760) 941-9002.
- Does Ethan Nguyen accept Medicare?
- Ethan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Nguyen's NPI active?
- Yes — Ethan Nguyen's NPI (1568475614) is active in the NPPES registry as of the last update on 2025-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.