William Nham
NPI 1265061154 · Adult Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Nham is a Adult Medicine Physician provider in San Jose, CA (NPI 1265061154).
Provider details
- NPI number
- 1265061154
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 25600 (NV)
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 tenure25% of score
6 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
556 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 98 | $6 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 69 | $10 |
| Hemoglobin A1c Level83036 | 58 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 51 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 48 | $6 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 45 | $16 |
| Urine Microalbumin (protein) Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 192 | 78 |
| Losartan Potassium | 186 | 63 |
| Amlodipine Besylate | 167 | 64 |
| Rosuvastatin Calcium | 97 | 45 |
| Alendronate Sodium | 66 | 26 |
| Metformin Hcl | 60 | 31 |
| Fluticasone Propionate | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2020-04-03
- Last updated
- 2024-07-15
- Certified
- 2024-07-15
Frequently asked questions
- What is William Nham's NPI number?
- William Nham's National Provider Identifier (NPI) is 1265061154, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nham's specialty?
- William Nham is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Nham located?
- William Nham's practice location on file with NPPES is 1870 Lundy Ave, San Jose, CA 95131-1826.
- What is William Nham's phone number?
- The practice phone number listed in the NPPES registry for William Nham is (415) 391-9686.
- Does William Nham accept Medicare?
- William Nham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Nham's NPI active?
- Yes — William Nham's NPI (1265061154) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.