Viet Nguyen, M.D.
NPI 1184019051 · Nephrology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Viet Nguyen, M.D. is a Nephrology Physician provider in San Diego, CA (NPI 1184019051).
Provider details
- NPI number
- 1184019051
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A149088 (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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,768 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,588 | $80 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 853 | $42 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 573 | $53 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 377 | $55 |
| Hemodialysis Procedure With Physician Evaluation90935 | 261 | $72 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 66 | 27 |
| Losartan Potassium | 64 | 24 |
| Sevelamer Carbonate | 60 | 22 |
| Semaglutidebrand: Ozempic | 60 | — |
| Empagliflozinbrand: Jardiance | 54 | 15 |
| Lisinopril | 51 | 14 |
| Furosemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 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
Additional practice locations (2)
- 11 Technology DrIrvine, CA 92618-2302Phone: (949) 923-3200
- 4725 Market StSan Diego, CA 92102-4715Phone: (619) 515-2560
Registry dates
- Enumerated
- 2015-03-30
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is Viet Nguyen's NPI number?
- Viet Nguyen's National Provider Identifier (NPI) is 1184019051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Viet Nguyen's specialty?
- Viet Nguyen is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Viet Nguyen located?
- Viet Nguyen's practice location on file with NPPES is 4060 Fourth Ave Ste 220, San Diego, CA 92103-2120.
- What is Viet Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Viet Nguyen is (619) 299-2350.
- Does Viet Nguyen accept Medicare?
- Viet Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Viet Nguyen's NPI active?
- Yes — Viet Nguyen's NPI (1184019051) 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.