Thanh Nguyen, MD
NPI 1508885625 · Nephrology Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thanh Nguyen, MD is a Nephrology Physician provider in Garden Grove, CA (NPI 1508885625).
Provider details
- NPI number
- 1508885625
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G56554 (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
1,664 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 810 | $98 |
| 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 | 694 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 60 | $141 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 50 | $369 |
| Administration of Influenza Virus VaccineG0008 | 38 | $20 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 468 | 89 |
| Amlodipine Besylate | 422 | 88 |
| Atorvastatin Calcium | 308 | 67 |
| Olmesartan Medoxomil | 306 | 62 |
| Metformin Hcl | 262 | 57 |
| Pioglitazone Hcl | 240 | 47 |
| Finerenonebrand: Kerendia | 227 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,534 across 47 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
- 2006-07-19
- Last updated
- 2013-10-03
Frequently asked questions
- What is Thanh Nguyen's NPI number?
- Thanh Nguyen's National Provider Identifier (NPI) is 1508885625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thanh Nguyen's specialty?
- Thanh Nguyen is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Thanh Nguyen located?
- Thanh Nguyen's practice location on file with NPPES is 8919 Westminster Ave, Garden Grove, CA 92844-2609.
- What is Thanh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Thanh Nguyen is (714) 893-5511.
- Does Thanh Nguyen accept Medicare?
- Thanh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thanh Nguyen's NPI active?
- Yes — Thanh Nguyen's NPI (1508885625) is active in the NPPES registry as of the last update on 2013-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.