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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARK WELLISCH M.D.
NPI 1982685996
Orthopaedic Surgery - Sports Medicine in Encino, CA

Active since November 07, 2005
16311 VENTURA BLVD, SUITE 800, ENCINO, CA 91436(818) 788-7343(818) 788-9453 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Mark Wellisch M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK WELLISCH M.D. (NPI 1982685996) is an individual sports medicine provider in Encino, California, licensed in California (A23373) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1982685996
Entity TypeIndividualMale
Primary Taxonomy207XX0005X
Provider Legal NameDR. MARK WELLISCHCredential: M.D.
Location Address16311 VENTURA BLVD, SUITE 800Encino, CA 91436-2124
Mailing Address16311 Ventura Blvd, Suite 800Encino, CA 91436-2124 · (818) 788-7343 · Fax (818) 788-9453
Phone(818) 788-7343
Fax(818) 788-9453
Sole ProprietorNo
Enumeration DateNovember 7, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1982685996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207XX0005X
License✔ Licensed in CA · A23373
Definition
An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License A23373 (CA)
Also ListedPediatrics · Sports MedicineTaxonomy 2080S0010X · License A23373 (CA)
16311 VENTURA BLVD, Encino, CA 91436
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Other Identifiers 1

Medicaid00A233730CA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAHIJI MEDICAL INC
Clinic/Center (Primary Care)
16311 VENTURA BLVD, SUITE 907
ENCINO, CA 91436
Los Angeles County (818) 907-7070
JEFFREY B GLASER MD MEDICAL
Anesthesiology (Pain Medicine)
16311 VENTURA BLVD, SUITE #518
ENCINO, CA 91436
Los Angeles County (818) 501-7246
MR. STEVEN YOSHIHARU SHIBA DDS
Dentist
16311 VENTURA BLVD, #1075
ENCINO, CA 91436
Los Angeles County (818) 783-2770
DR. RICHARD E MACK JR. M.D.
Surgery (Plastic and Reconstructive Surgery)
16311 VENTURA BLVD, SUITE 1080
ENCINO, CA 91436
Los Angeles County (818) 501-5073
DR. BRUCE RICHARD STEINBERG M.D.
Psychiatry & Neurology (Addiction Medicine)
16311 VENTURA BLVD, SUITE 1050
ENCINO, CA 91436
Los Angeles County (818) 990-7099
MOUNTAIN VIEW SURGICAL CENTER INC.
Clinic/Center (Ambulatory Surgical)
16311 VENTURA BLVD, #705
ENCINO, CA 91436
Los Angeles County (818) 205-9500
TOORAJ TODD GRAVORI MD INC
Neurological Surgery
16311 VENTURA BLVD, SUITE 1065
ENCINO, CA 91436
Los Angeles County (818) 390-9100
MATTHEW MALAMET M.D. PC
Plastic Surgery
16311 VENTURA BLVD, SUITE 835
ENCINO, CA 91436
Los Angeles County (818) 380-3130

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Wellisch's NPI number?

The NPI number for Mark Wellisch is 1982685996. It was assigned to this individual provider in the NPPES registry on November 7, 2005.

Where is Mark Wellisch located?

Mark Wellisch practices at 16311 Ventura Blvd Suite 800, Encino, CA 91436. The listed phone number is (818) 788-7343.

What is Mark Wellisch's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

When was this NPI record last updated?

The NPPES record for Mark Wellisch was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.