LUDMILA B. BESS, MD A PROFESSIONAL CORPORATION
NPI 1740352632
Obstetrics & Gynecology in Los Angeles, CA
About Ludmila B. Bess, Md A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LUDMILA B. BESS, MD A PROFESSIONAL CORPORATION (NPI 1740352632) is a healthcare organization registered as an obstetrics & gynecology in Los Angeles, California and active in the NPI registry since November 2006. The organization lists Oleg E Bess, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
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)
Ludmila B. Bess, Md A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 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 Ludmila B. Bess, MD A Professional 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)
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 Ludmila B. Bess, MD A Professional Corporation's NPI number?
The NPI number for Ludmila B. Bess, MD A Professional Corporation is 1740352632. It was assigned to this organization in the NPPES registry on November 15, 2006.
Where is Ludmila B. Bess, MD A Professional Corporation located?
Ludmila B. Bess, MD A Professional Corporation is located at 5901 W. Olympic Boulevard., Suite 503, Los Angeles, CA 90036. The listed phone number is (323) 934-8877.
What is Ludmila B. Bess, MD A Professional Corporation's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Ludmila B. Bess, MD A Professional Corporation enrolled in Medicare?
Yes. Ludmila B. Bess, MD A Professional Corporation is registered in the Medicare PECOS enrollment system.
When is Ludmila B. Bess, MD A Professional 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 November 30, 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 Ludmila B. Bess, MD A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Obstetrics/Gynecology, reassign their Medicare billing to Ludmila B. Bess, MD A Professional 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.
When was this NPI record last updated?
The NPPES record for Ludmila B. Bess, MD A Professional Corporation was last updated on July 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Ludmila B. Bess, Md A Professional Corporation · NPI 1740352632
Obstetrics & Gynecology organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since November 15, 2006.
## Identity
- **NPI:** 1740352632 (Entity type: Organization)
- **Enumerated:** November 15, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **Organization subpart:** No
- **Authorized official:** Oleg Bess, PRESIDENT
## Practice location
- **Address:** 5901 W. OLYMPIC BOULEVARD.,, SUITE 503, Los Angeles, CA 90036
- **Phone:** (323) 934-8877 · **Fax:** (323) 934-5008
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2 clinicians (Obstetrics/Gynecology) 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:** July 23, 2025
- **Other identifiers:** Other A134652 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1740352632) · Data from the CMS NPPES public registry.