JACK BENJAMIN MARGINES
NPI 1801423181
Ophthalmology in Los Angeles, CA
About Jack Benjamin Margines NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACK BENJAMIN MARGINES (NPI 1801423181) is an individual ophthalmology provider in Los Angeles, California, licensed in California (A191238) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Geffen School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jack Benjamin Margines is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jack Margines reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 123 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jack Margines's NPI number?
The NPI number for Jack Margines is 1801423181. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Jack Margines located?
Jack Margines practices at 200 Stein Plaza, Los Angeles, CA 90095. The listed phone number is (310) 206-7474.
What is Jack Margines's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Jack Margines enrolled in Medicare?
Yes. Jack Margines is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jack Margines's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Margines reassigns Medicare benefits to Jules Stein Eye Institute Medical Group (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jack Margines's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jack Margines was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Jack Benjamin Margines · NPI 1801423181
Ophthalmology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1801423181 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A191238 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 STEIN PLAZA, Los Angeles, CA 90095-7065
- **Phone:** (310) 206-7474
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Jules Stein Eye Institute Medical Group (NPI 1326006966, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** September 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1801423181) · Data from the CMS NPPES public registry.