MARCOS LEMOR, MD A MEDICAL CORPORATION
NPI 1831406743
Ophthalmology in Los Angeles, CA
About Marcos Lemor, Md A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCOS LEMOR, MD A MEDICAL CORPORATION (NPI 1831406743) is a healthcare organization registered as an ophthalmology in Los Angeles, California and active in the NPI registry since September 2010. The organization lists Marcos Lemor, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marcos Lemor, Md A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by December 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Marcos Lemor, MD A Medical Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Los Angeles, CA 90023
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Marcos Lemor, MD A Medical Corporation's NPI number?
The NPI number for Marcos Lemor, MD A Medical Corporation is 1831406743. It was assigned to this organization in the NPPES registry on September 13, 2010.
Where is Marcos Lemor, MD A Medical Corporation located?
Marcos Lemor, MD A Medical Corporation is located at 4036 Whittier Blvd Suite 202, Los Angeles, CA 90023. The listed phone number is (323) 262-3333.
What is Marcos Lemor, MD A Medical Corporation's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Marcos Lemor, MD A Medical Corporation enrolled in Medicare?
Yes. Marcos Lemor, MD A Medical Corporation is registered in the Medicare PECOS enrollment system.
When is Marcos Lemor, MD A Medical Corporation's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Marcos Lemor, MD A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Ophthalmology, reassign their Medicare billing to Marcos Lemor, MD A Medical Corporation. A 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 the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Marcos Lemor, MD A Medical Corporation accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of Tennessee list Marcos Lemor, MD A Medical Corporation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marcos Lemor, MD A Medical Corporation was last updated on September 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.
# Marcos Lemor, Md A Medical Corporation · NPI 1831406743
Ophthalmology organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since September 13, 2010.
## Identity
- **NPI:** 1831406743 (Entity type: Organization)
- **Enumerated:** September 13, 2010
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** Marcos Lemor, PRESIDENT
## Practice location
- **Address:** 4036 WHITTIER BLVD, SUITE 202, Los Angeles, CA 90023-2560
- **Phone:** (323) 262-3333
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** December 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2 clinicians (Ophthalmology) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 13, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1831406743) · Data from the CMS NPPES public registry.