Steven Marcus, M.D.
NPI 1407098015 · Primary Care Clinic/Center · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Marcus, M.D. is a Primary Care Clinic/Center provider in Los Angeles, CA (NPI 1407098015).
Provider details
- NPI number
- 1407098015
- Entity type
- Individual
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G33630 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2009-03-27
- Last updated
- 2009-03-27
Frequently asked questions
- What is Steven Marcus's NPI number?
- Steven Marcus's National Provider Identifier (NPI) is 1407098015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Marcus's specialty?
- Steven Marcus is listed in the NPPES registry with a primary specialty of Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Steven Marcus located?
- Steven Marcus's practice location on file with NPPES is 1021 Manning Ave, Los Angeles, CA 90024-3220.
- What is Steven Marcus's phone number?
- The practice phone number listed in the NPPES registry for Steven Marcus is (310) 474-5671.
- Does Steven Marcus accept Medicare?
- Steven Marcus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Marcus's NPI active?
- Yes — Steven Marcus's NPI (1407098015) is active in the NPPES registry as of the last update on 2009-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.