Marilyn Zwass
NPI 1831566934 · Occupational Medicine Physician · Los Angeles, CA
Marilyn Zwass is a Occupational Medicine Physician provider in Los Angeles, CA (NPI 1831566934).
Provider details
- NPI number
- 1831566934
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- A62733 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2015-08-25
- Last updated
- 2015-08-25
Frequently asked questions
- What is Marilyn Zwass's NPI number?
- Marilyn Zwass's National Provider Identifier (NPI) is 1831566934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Zwass's specialty?
- Marilyn Zwass is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Zwass located?
- Marilyn Zwass's practice location on file with NPPES is 150 N Poinsettia Pl, Los Angeles, CA 90036-2806.
- What is Marilyn Zwass's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Zwass is (818) 784-1354.
- Is Marilyn Zwass's NPI active?
- Yes — Marilyn Zwass's NPI (1831566934) is active in the NPPES registry as of the last update on 2015-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.