OrganizationActive
Marshak Medical Group Inc
NPI 1770604779 · Adolescent Medicine (Family Medicine) Physician · Los Angeles, CA
Provider details
- NPI number
- 1770604779
- Entity type
- Organization
- Primary specialty
- Adolescent Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Herbert Marshak, M.D.(323) 268-4436
- License
- A29118 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
3484 E 1st St
Los Angeles, CA 90063-2946
Phone: (323) 268-4436
Fax: (323) 264-3049
Street-level locationGet directions
Mailing address
Po Box 63194
Los Angeles, CA 90063-0194
Registry dates
- Enumerated
- 2007-04-03
- Last updated
- 2015-07-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.