CHELSEA BENMESSAOUD MD
NPI 1700462140
Internal Medicine in Los Angeles, CA
About Chelsea Benmessaoud Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHELSEA BENMESSAOUD MD (NPI 1700462140) is an individual internal medicine provider in Los Angeles, California, licensed in California (A199505) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Vincennes, and is a graduate of University Of California, Geffen School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Chelsea Benmessaoud Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Chelsea Benmessaoud reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90059
- Reassigned Medicare billing, California enrollment
- 435 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 90024 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90024
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 Chelsea Benmessaoud's NPI number?
The NPI number for Chelsea Benmessaoud is 1700462140. It was assigned to this individual provider in the NPPES registry on March 23, 2021.
Where is Chelsea Benmessaoud located?
Chelsea Benmessaoud practices at 911 Broxton Ave, Los Angeles, CA 90024. The listed phone number is (310) 794-2202.
What is Chelsea Benmessaoud's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Chelsea Benmessaoud enrolled in Medicare?
Yes. Chelsea Benmessaoud is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Chelsea Benmessaoud's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chelsea Benmessaoud reassigns Medicare benefits to County Of Los Angeles (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 Chelsea Benmessaoud'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 Chelsea Benmessaoud was last updated on March 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Chelsea Benmessaoud, MD · NPI 1700462140
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 23, 2021.
## Identity
- **NPI:** 1700462140 (Entity type: Individual)
- **Enumerated:** March 23, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A199505 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 911 BROXTON AVE, Los Angeles, CA 90024-2801
- **Phone:** (310) 794-2202
## 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:** County Of Los Angeles (NPI 1780877613, 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:** March 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1700462140) · Data from the CMS NPPES public registry.