Skip to content
NPISignal

Individual Healthcare Provider

David Dae Kyu Chi, M.D.

NPI Record: ActiveSurgery — Surgical Oncology
NPI1881746428
Westlake Village, California

Provider's NPPES record last updated: July 31, 2026

Overview

Entity Type
Individual Healthcare Provider
NPI
1881746428
Primary Specialty
Surgery — Surgical Oncology
Practice Location
Westlake Village, 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 21, 2026, 1:38 PM 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

  • Surgery

    Surgical Oncology

    Allopathic & Osteopathic Physicians

    Primary

    A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.

    Taxonomy code 2086X0206X
  • Surgery

    Allopathic & Osteopathic Physicians

    A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

    Taxonomy code 208600000X

Provider-Reported License Information

Surgery (California)
G84570
Surgery (California)
G84570
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

1250 La Venta Dr Ste 100

Westlake Village, California 91361-3774

Phone: (805) 496-5153

Additional Practice Location

555 Marin Street

Suite 210

Thousand Oaks, California 91360-4105

Phone: (805) 497-7785

Fax: (805) 497-7728

Record Information

Enumeration Date
January 16, 2007
Provider's NPPES Record Last Updated
July 31, 2026
Certification Date
July 31, 2026
NPISignal NPPES Dataset
August 2026

See Something Wrong?

Incorrect provider information

Everything on this page comes directly from the NPPES data CMS publishes. NPISignal cannot edit a provider's record — only the provider or organization can, directly through NPPES.

Update a record through NPPES

Something wrong with this page?

If NPISignal is displaying this data incorrectly — a formatting error, a broken link, a mismatch with the source file — let us know.

Report a display issue