Mark Wellisch, M.D.
NPI 1982685996 · Sports Medicine (Orthopaedic Surgery) Physician · Encino, CA
Mark Wellisch, M.D. is a Sports Medicine (Orthopaedic Surgery) Physician provider in Encino, CA (NPI 1982685996).
Provider details
- NPI number
- 1982685996
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Orthopaedic Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- A23373 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-07
- Last updated
- 2025-09-11
Frequently asked questions
- What is Mark Wellisch's NPI number?
- Mark Wellisch's National Provider Identifier (NPI) is 1982685996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Wellisch's specialty?
- Mark Wellisch is listed in the NPPES registry with a primary specialty of Sports Medicine (Orthopaedic Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Wellisch located?
- Mark Wellisch's practice location on file with NPPES is 16311 Ventura Blvd, Encino, CA 91436-2124.
- What is Mark Wellisch's phone number?
- The practice phone number listed in the NPPES registry for Mark Wellisch is (818) 788-7343.
- Is Mark Wellisch's NPI active?
- Yes — Mark Wellisch's NPI (1982685996) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.