John Liu, MD
NPI 1235161449 · Neurological Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Liu, MD is a Neurological Surgery Physician provider in Los Angeles, CA (NPI 1235161449).
Provider details
- NPI number
- 1235161449
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G88822 (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
636 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 178 | $130 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 175 | $101 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 80 | $180 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 63 | $139 |
| Fusion of Additional Segment of Spine22614 | 49 | $317 |
| Partial Removal of Spine Bone With Release of Lower Spinal Cord And/Or Nerves, 1 Segment |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,001 across 15 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
- 2006-07-07
- Last updated
- 2021-05-17
- Certified
- 2021-05-17
Frequently asked questions
- What is John Liu's NPI number?
- John Liu's National Provider Identifier (NPI) is 1235161449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Liu's specialty?
- John Liu is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Liu located?
- John Liu's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5310.
- What is John Liu's phone number?
- The practice phone number listed in the NPPES registry for John Liu is (323) 442-5720.
- Does John Liu accept Medicare?
- John Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Liu's NPI active?
- Yes — John Liu's NPI (1235161449) is active in the NPPES registry as of the last update on 2021-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.