Collins Liu, MD
NPI 1851547459 · Behavioral Neurology & Neuropsychiatry Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Collins Liu, MD is a Behavioral Neurology & Neuropsychiatry Physician provider in San Diego, CA (NPI 1851547459).
Provider details
- NPI number
- 1851547459
- Entity type
- Individual
- Primary specialty
- Behavioral Neurology & Neuropsychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A113042 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
903 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 276 | $187 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 213 | $33 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $115 |
| Exam of Neurobehavioral Status, First Hour96116 | 60 | $96 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 52 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 158 | 40 |
| Rivastigmine Tartratebrand: Rivastigmine | 85 | 16 |
| Trazodone Hcl | 76 | 22 |
| Memantine Hcl | 73 | 22 |
| Gabapentin | 65 | 20 |
| Escitalopram Oxalate | 41 | 13 |
| Quetiapine Fumarate | 29 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,920 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
Additional practice locations (2)
- 255 N Elm St Ste 205Escondido, CA 92025-3431Phone: (858) 306-9119
- 1520 San Pablo St Ste 3000Los Angeles, CA 90033-5315Phone: (323) 442-5710
Registry dates
- Enumerated
- 2008-08-14
- Last updated
- 2024-05-15
- Certified
- 2024-05-15
Frequently asked questions
- What is Collins Liu's NPI number?
- Collins Liu's National Provider Identifier (NPI) is 1851547459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Collins Liu's specialty?
- Collins Liu is listed in the NPPES registry with a primary specialty of Behavioral Neurology & Neuropsychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Collins Liu located?
- Collins Liu's practice location on file with NPPES is 11120 E Ocean Air Dr Ste 101-88, San Diego, CA 92130-4683.
- What is Collins Liu's phone number?
- The practice phone number listed in the NPPES registry for Collins Liu is (619) 630-8676.
- Does Collins Liu accept Medicare?
- Collins Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Collins Liu's NPI active?
- Yes — Collins Liu's NPI (1851547459) is active in the NPPES registry as of the last update on 2024-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.