William Chu, M.D.
NPI 1194875054 · Internal Medicine Physician · Palo Alto, CA
William Chu, M.D. is a Internal Medicine Physician provider in Palo Alto, CA (NPI 1194875054).
Provider details
- NPI number
- 1194875054
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G76717 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 187 | 56 |
| Amlodipine Besylate | 94 | 28 |
| Levothyroxine Sodium | 91 | 26 |
| Apixabanbrand: Eliquis | 87 | 15 |
| Tamsulosin Hcl | 84 | 26 |
| Lisinopril | 71 | 18 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,281 across 67 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
- 2007-01-11
- Last updated
- 2020-10-09
- Certified
- 2020-10-09
Frequently asked questions
- What is William Chu's NPI number?
- William Chu's National Provider Identifier (NPI) is 1194875054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chu's specialty?
- William Chu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Chu located?
- William Chu's practice location on file with NPPES is 805 El Camino Real, Palo Alto, CA 94301-2315.
- What is William Chu's phone number?
- The practice phone number listed in the NPPES registry for William Chu is (650) 329-0440.
- Is William Chu's NPI active?
- Yes — William Chu's NPI (1194875054) is active in the NPPES registry as of the last update on 2020-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.