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NPISignal

Individual Healthcare Provider

Collins Liu, MD

NPI Record: ActivePsychiatry & Neurology — Behavioral Neurology & Neuropsychiatry
NPI1851547459
San Diego, California

Provider's NPPES record last updated: May 15, 2024

Overview

Entity Type
Individual Healthcare Provider
NPI
1851547459
Primary Specialty
Psychiatry & Neurology — Behavioral Neurology & Neuropsychiatry
Practice Location
San Diego, California
Sole Proprietor
Yes

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 18, 2026, 8:44 AM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Psychiatry & Neurology

    Behavioral Neurology & Neuropsychiatry

    Allopathic & Osteopathic Physicians

    Primary

    Behavioral Neurology & Neuropsychiatry is a medical subspecialty involving the diagnosis and treatment of neurologically based behavioral issues.

    Taxonomy code 2084B0040X
  • Psychiatry & Neurology

    Diagnostic Neuroimaging

    Allopathic & Osteopathic Physicians

    A licensed physician, who has completed a residency program in Neurology, and who has additional training, experience, and competence in the standards of performance and interpretation of Magnetic Resonance Imaging (MRI / MRA) of the head, spine, and peripheral nerves, and Computed Tomography (CT) of the head and spine. Physicians are trained in the administration of contrast media and the recognition and treatment of adverse reactions to contrast media. Neuroimaging training encompasses thorough knowledge of clinical neurology, neurophysiology, neuroanatomy, neurochemistry, neuropharmacology, and dynamics of cerebrospinal fluid circulation. Physicians possess special expertise in the technical aspects and clinical applications of each of the modalities and techniques of neuroimaging.

    Taxonomy code 2084D0003X
  • Nuclear Medicine

    Allopathic & Osteopathic Physicians

    A nuclear medicine specialist employs the properties of radioactive atoms and molecules in the diagnosis and treatment of disease and in research. Radiation detection and imaging instrument systems are used to detect disease as it changes the function and metabolism of normal cells, tissues and organs. A wide variety of diseases can be found in this way, usually before the structure of the organ involved by the disease can be seen to be abnormal by any other techniques. Early detection of coronary artery disease (including acute heart attack), early cancer detection and evaluation of the effect of tumor treatment, diagnosis of infection and inflammation anywhere in the body and early detection of blood clot in the lungs are all possible with these techniques. Unique forms of radioactive molecules can attack and kill cancer cells (e.g., lymphoma, thyroid cancer) or can relieve the severe pain of cancer that has spread to bone

    Taxonomy code 207U00000X

Provider-Reported License Information

Psychiatry & Neurology (California)
A113042
Psychiatry & Neurology (California)
A113042
Nuclear Medicine (California)
A113042
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

11120 E Ocean Air Dr Ste 101-88

San Diego, California 92130-4683

Phone: (619) 630-8676

Additional Practice Location

1520 San Pablo St Ste 3000

Los Angeles, California 90033-5315

Phone: (323) 442-5710

Additional Practice Location

255 N Elm St Ste 205

Escondido, California 92025-3431

Phone: (858) 306-9119

Record Information

Enumeration Date
August 14, 2008
Provider's NPPES Record Last Updated
May 15, 2024
Certification Date
May 15, 2024
NPISignal NPPES Dataset
August 2026

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