Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Collins Liu, MD

Individual provider Diagnostic Neuroimaging (Psychiatry & Neurology) Physician · NPI 1851547459

Dr. Collins Liu, MD practises Neurology in San Diego, California. Graduated from New York Medical College in 2008, 18 years ago. Practices with On Demand Neurology PA, a 15-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
18
Trained at
New York Medical College
Licensed in
CA
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

11120 E Ocean Air Dr Ste 101-88
San Diego, CA 92130-4683
Phone: (619) 630-8676
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 255 N Elm St Ste 205, Escondido, CA 92025-3431 — (858) 306-9119
  • 1520 San Pablo St Ste 3000, Los Angeles, CA 90033-5315 — (323) 442-5710

Specialties & licences

Behavioral Neurology & Neuropsychiatry Physician (primary) Taxonomy 2084B0040X · Licence A113042 (CA)
Diagnostic Neuroimaging (Psychiatry & Neurology) Physician Taxonomy 2084D0003X · Licence A113042 (CA)
Nuclear Medicine Physician Taxonomy 207U00000X · Licence A113042 (CA)

Record details

NPI number1851547459
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 14, 2008
Last updated in NPPESMay 15, 2024
Certification dateMay 15, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2008 (18 years in practice)
Group practice On Demand Neurology Pa — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations9 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients204
Services billed 1,366 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $153 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Keck Hospital Of Usc Hospital · Los Angeles, CA

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at On Demand Neurology PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 12 are shown here.