Jack Mark, CPO
NPI 1699228619 · Prosthetist · Los Angeles, CA
Jack Mark, CPO is a Prosthetist provider in Los Angeles, CA (NPI 1699228619).
Provider details
- NPI number
- 1699228619
- Entity type
- Individual
- Primary specialty
- ProsthetistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- CPO
- Sex
- Male
- Sole proprietor
- No
- License
- CPO01066 (DE)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-07-26
- Last updated
- 2016-07-26
Frequently asked questions
- What is Jack Mark's NPI number?
- Jack Mark's National Provider Identifier (NPI) is 1699228619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Mark's specialty?
- Jack Mark is listed in the NPPES registry with a primary specialty of Prosthetist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Jack Mark located?
- Jack Mark's practice location on file with NPPES is 3160 Geneva St, Los Angeles, CA 90020-1117.
- What is Jack Mark's phone number?
- The practice phone number listed in the NPPES registry for Jack Mark is (213) 368-3374.
- Is Jack Mark's NPI active?
- Yes — Jack Mark's NPI (1699228619) is active in the NPPES registry as of the last update on 2016-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.