Joshua Ellenhorn, MD
Surgical Oncology Physician · Los Angeles, CA
Joshua Ellenhorn, MD is a surgical oncology physician with a practice address in Los Angeles, California, and NPI 1699871525, issued on Sep 16, 2006. Check the license (California G57872, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joshua Ellenhorn
- Credential
- MD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- G57872 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8635 W 3RD St Ste 880W, Los Angeles, CA 90048
- Phone
- (310) 289-1518
- Enumerated
- Sep 16, 2006
- Record last updated
- Dec 16, 2025
- Fax
- (310) 289-1526
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 250 in California → Look up another NPI →
Also registered at 8635 W 3RD St Ste 880W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Arena, M.D.Surgical Oncology Physician1245460237
- Moshe Barnajian, M.D.Surgery Physician1942437629
- Pegah PanirianFoot & Ankle Surgery Podiatrist1770108672
Verify Joshua Ellenhorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G57872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average surgical oncology physician in 2024
34 Medicare Part D claims for 24 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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.
The MIPS final score for 2023 (Medicare payment program): 25.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $488.22
13 payments; by number, the most common kind was food and beverage; the largest payer was Aroa Biosurgery Incorporated. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Joshua Ellenhorn among 250 surgical oncology physician records in California
Joshua Ellenhorn, MD is one of 250 surgical oncology physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 64% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2025 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
All 250 in California → Every provider in Los Angeles → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Farin Amersi, M.D.West Hollywood, CA 900481679587604
- Elizabeth Arena, M.D.Los Angeles, CA 900481245460237
- Marc AttiyehLos Angeles, CA 900481225471006
- Micah Brainerd, MDLos Angeles, CA 900481760019087
- Jason Cohen, M.D.Los Angeles, CA 900481598779605
- Lauren Destefano, MDWest Hollywood, CA 900481710390513
- Cristina Ferrone, M.D.Los Angeles, CA 900481316053192
- Alexandra Gangi, M.D.West Hollywood, CA 900481932498110
Common questions
What is Joshua Ellenhorn, MD's NPI number?
Joshua Ellenhorn, MD's National Provider Identifier (NPI) is 1699871525, issued on Sep 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Ellenhorn, MD located?
The NPPES record lists a practice address at 8635 W 3RD St Ste 880W, Los Angeles, CA, 90048. Phone: (310) 289-1518. Providers update this record themselves, so call before visiting.
How can I verify Joshua Ellenhorn, MD's license?
NPPES lists California license number G57872, 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 Joshua Ellenhorn, MD prescribe under Medicare Part D?
In 2024, Joshua Ellenhorn, MD had 34 Medicare Part D claims for 24 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.
What is Joshua Ellenhorn, MD's MIPS final score?
The 2023 MIPS final score is 25.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.