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NPISignal

Individual Healthcare Provider

Joseph Mendelis, MD

NPI Record: ActiveOrthopaedic Surgery
NPI1467847525
Westlake Village, California

Provider's NPPES record last updated: March 21, 2025

Overview

Entity Type
Individual Healthcare Provider
NPI
1467847525
Primary Specialty
Orthopaedic Surgery
Practice Location
Westlake Village, California
Sole Proprietor
No

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, 2:40 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

  • Orthopaedic Surgery

    Allopathic & Osteopathic Physicians

    Primary

    An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

    Taxonomy code 207X00000X
  • Orthopaedic Surgery

    Orthopaedic Surgery of the Spine

    Allopathic & Osteopathic Physicians

    Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

    Taxonomy code 207XS0117X

Provider-Reported License Information

Orthopaedic Surgery (California)
A168200
Orthopaedic Surgery (California)
A168200
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

30870 Russell Ranch Rd Ste 330

Westlake Village, California 91362-7372

Phone: (805) 497-7015

Additional Practice Location

1250 Waters Pl

11th Floor

Bronx, New York 10461-2720

Phone: (347) 577-4410

Additional Practice Location

400 Parnassus Ave Fl 3

San Francisco, California 94143-2202

Phone: (866) 817-7463

Additional Practice Location

3605 Alamo St Ste 200

Simi Valley, California 93063-2186

Phone: (805) 578-8550

Additional Practice Location

19950 Rinaldi St Ste 100

Northridge, California 91326-4141

Phone: (818) 363-2273

Additional Practice Location

375 Rolling Oaks Dr Ste 210

Thousand Oaks, California 91361-1028

Phone: (805) 497-7015

Record Information

Enumeration Date
April 5, 2015
Provider's NPPES Record Last Updated
March 21, 2025
Certification Date
March 21, 2025
NPISignal NPPES Dataset
August 2026

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