Thanh Nguyen-Dinh, M.D.
NPI 1063495323 · Geriatric Medicine (Internal Medicine) Physician · San Leandro, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thanh Nguyen-Dinh, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in San Leandro, CA (NPI 1063495323).
Provider details
- NPI number
- 1063495323
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101-31818 (VA)
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
1,336 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 | 454 | $110 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 293 | $133 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 168 | $154 |
| Urinalysis, Manual Test81002 | 138 | $3 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 66 | $69 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 358 | 127 |
| Amlodipine Besylate | 329 | 106 |
| Losartan Potassium | 198 | 59 |
| Metformin Hcl | 154 | 48 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 97 | 97 |
| Metoprolol Succinate | 96 | 34 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$55 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
- 2005-11-21
- Last updated
- 2013-12-27
Frequently asked questions
- What is Thanh Nguyen-Dinh's NPI number?
- Thanh Nguyen-Dinh's National Provider Identifier (NPI) is 1063495323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thanh Nguyen-Dinh's specialty?
- Thanh Nguyen-Dinh is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Thanh Nguyen-Dinh located?
- Thanh Nguyen-Dinh's practice location on file with NPPES is 716 Raineer Ct, San Leandro, CA 94577-1556.
- What is Thanh Nguyen-Dinh's phone number?
- The practice phone number listed in the NPPES registry for Thanh Nguyen-Dinh is (408) 681-8999.
- Does Thanh Nguyen-Dinh accept Medicare?
- Thanh Nguyen-Dinh 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-Dinh's NPI active?
- Yes — Thanh Nguyen-Dinh's NPI (1063495323) is active in the NPPES registry as of the last update on 2013-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.