Derek Liau, MD
NPI 1366557704 · Anesthesiology Physician · Menlo Park, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Liau, MD is a Anesthesiology Physician provider in Menlo Park, CA (NPI 1366557704).
Provider details
- NPI number
- 1366557704
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A108262 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
109 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 38 | $139 |
| Anesthesia for Lens Surgery00142 | 29 | $136 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 16 | $168 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 14 | $140 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 12 | $76 |
Typical Medicare-allowed amounts for these services range $76–$168 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2014-05-11
Frequently asked questions
- What is Derek Liau's NPI number?
- Derek Liau's National Provider Identifier (NPI) is 1366557704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Liau's specialty?
- Derek Liau is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Liau located?
- Derek Liau's practice location on file with NPPES is 1422 El Camino Real, Menlo Park, CA 94025-4110.
- What is Derek Liau's phone number?
- The practice phone number listed in the NPPES registry for Derek Liau is (650) 903-9500.
- Does Derek Liau accept Medicare?
- Derek Liau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Liau's NPI active?
- Yes — Derek Liau's NPI (1366557704) is active in the NPPES registry as of the last update on 2014-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.