William Chow, MD
NPI 1457409211 · Neurology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Chow, MD is a Neurology Physician provider in Los Angeles, CA (NPI 1457409211).
Provider details
- NPI number
- 1457409211
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A64697 (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
7,329 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 50 Minutes99233 | 3,407 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 2,026 | $191 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 478 | $176 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 420 | $97 |
| Measurement of Brain Wave Activity (eeg), Awake and Asleep95819 | 389 | $58 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 529 | 131 |
| Gabapentin | 462 | 109 |
| Memantine Hcl | 409 | 93 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 331 | 70 |
| Levetiracetam | 223 | 47 |
| Duloxetine Hcl | 133 | 31 |
| Topiramate | 118 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,702 across 77 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
- 2007-01-08
- Last updated
- 2020-09-21
- Certified
- 2020-09-21
Frequently asked questions
- What is William Chow's NPI number?
- William Chow's National Provider Identifier (NPI) is 1457409211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chow's specialty?
- William Chow is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is William Chow located?
- William Chow's practice location on file with NPPES is 8635 W 3rd Street, Los Angeles, CA 90048.
- What is William Chow's phone number?
- The practice phone number listed in the NPPES registry for William Chow is (310) 659-4986.
- Does William Chow accept Medicare?
- William Chow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Chow's NPI active?
- Yes — William Chow's NPI (1457409211) is active in the NPPES registry as of the last update on 2020-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.