Chelsea Benmessaoud, MD
Internal Medicine Physician · Los Angeles, CA
Chelsea Benmessaoud, MD is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1700462140, issued on Mar 23, 2021. Check the license (California A199505, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chelsea Benmessaoud
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A199505 CA
Self-reported in NPPES; status is on the state search - Practice location
- 911 Broxton Ave, Los Angeles, CA 90024
- Phone
- (310) 794-2202
- Enumerated
- Mar 23, 2021
- Record last updated
- Mar 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20260429002306); may accept Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 911 Broxton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Raymond Perry, M.D.Pediatrics Physician1932376274
Verify Chelsea Benmessaoud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A199505Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
339 Medicare Part D claims for 63 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Lisinopril25 claims
- Allopurinol12 claims
- Furosemide12 claims
- Jardiance12 claims
- Levothyroxine Sodium11 claims
- Ropinirole Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Chelsea Benmessaoud among 17,696 internal medicine physician records in California
Chelsea Benmessaoud, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alejandra Casillas, M.D.Los Angeles, CA 900241205026721
- Kristina Cordasco, M.D., M.P.H.Los Angeles, CA 900241790700854
- Celeste Emont, M.DLos Angeles, CA 900241043414477
- Harry Green, MDLos Angeles, CA 900241932127560
- Nancy Greengold, MDLos Angeles, CA 900241033328208
- Sarah Kim, M.D.Los Angeles, CA 900241205028651
- Lisa Kransdorf, MDLos Angeles, CA 900241962675223
- S. Anjani Mattai, MDLos Angeles, CA 900241528030996
Common questions
What is Chelsea Benmessaoud, MD's NPI number?
Chelsea Benmessaoud, MD's National Provider Identifier (NPI) is 1700462140, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea Benmessaoud, MD located?
The NPPES record lists a practice address at 911 Broxton Ave, Los Angeles, CA, 90024. Phone: (310) 794-2202. Providers update this record themselves, so call before visiting.
How can I verify Chelsea Benmessaoud, MD's license?
NPPES lists California license number A199505, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chelsea Benmessaoud, MD prescribe under Medicare Part D?
In 2024, Chelsea Benmessaoud, MD had 339 Medicare Part D claims for 63 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.