Arsen Osipov, M.D.
Medical Oncology Physician · West Hollywood, CA
Arsen Osipov, M.D. is a medical oncology physician with a practice address in West Hollywood, California, and NPI 1598108482, issued on Apr 10, 2013. Check the license (California A135404, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arsen Osipov
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A135404 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd, West Hollywood, CA 90048
- Phone
- (310) 423-6066
- Enumerated
- Apr 10, 2013
- Record last updated
- Jul 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20200713002975); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 8700 Beverly Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Arsen Osipov in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A135404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average medical oncology physician in 2024
595 Medicare Part D claims for 98 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Creon136 claims
- Ondansetron Hcl95 claims
- Prochlorperazine Maleate88 claims
- Loperamide30 claims
- Eliquis28 claims
- Lorazepam22 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,768.92
3 payments; by number, the most common kind was food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 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.
One hospital affiliation
- Cedars-Sinai Medical CenterWest Hollywood, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Arsen Osipov among 447 medical oncology physician records in California
Arsen Osipov, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2013 · median 2004 among the 312 with a school on file
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in West Hollywood → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Reva Basho, M.D.West Hollywood, CA 900481508146721
- Jin Sun Bitar, M.D.Los Angeles, CA 900481477940161
- James Hu, M.D.Los Angeles, CA 900481467424929
- Lawrence Liu, MDLos Angeles, CA 900481255890380
- Ronald Natale, M.D.West Hollywood, CA 900481285734350
- Coyin OhLos Angeles, CA 900481225666464
- Kamya SankarLos Angeles, CA 900481346602836
- Barliz Waissengrin, MDLos Angeles, CA 900481578407904
Common questions
What is Arsen Osipov, M.D.'s NPI number?
Arsen Osipov, M.D.'s National Provider Identifier (NPI) is 1598108482, issued on Apr 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Arsen Osipov, M.D. located?
The NPPES record lists a practice address at 8700 Beverly Blvd, West Hollywood, CA, 90048. Phone: (310) 423-6066. Providers update this record themselves, so call before visiting.
How can I verify Arsen Osipov, M.D.'s license?
NPPES lists California license number A135404, 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 Arsen Osipov, M.D. prescribe under Medicare Part D?
In 2024, Arsen Osipov, M.D. had 595 Medicare Part D claims for 98 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Arsen Osipov, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.7 of 100, reported for the practice group. 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.