Arsen Osipov, M.D.
NPI 1598108482 · Medical Oncology Physician · West Hollywood, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arsen Osipov, M.D. is a Medical Oncology Physician provider in West Hollywood, CA (NPI 1598108482).
Provider details
- NPI number
- 1598108482
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A135404 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,019 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 620 | $154 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 169 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 123 | $84 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 53 | $194 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 40 | $138 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lipase/Protease/Amylasebrand: Creon | 136 | 46 |
| Ondansetron Hcl | 95 | 44 |
| Prochlorperazine Maleate | 88 | 43 |
| Loperamide Hclbrand: Loperamide | 30 | 14 |
| Apixabanbrand: Eliquis | 28 | 11 |
| Lorazepam | 22 | — |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,769 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- John Hopkins Hospital - SkcccCrb 1 Rm 186, 1650 Orleans StreetBaltimore, MD 21287Phone: (410) 955-8893
Registry dates
- Enumerated
- 2013-04-10
- Last updated
- 2022-07-21
- Certified
- 2020-07-08
Frequently asked questions
- What is Arsen Osipov's NPI number?
- Arsen Osipov's National Provider Identifier (NPI) is 1598108482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arsen Osipov's specialty?
- Arsen Osipov is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Arsen Osipov located?
- Arsen Osipov's practice location on file with NPPES is 8700 Beverly Blvd, West Hollywood, CA 90048-1804.
- What is Arsen Osipov's phone number?
- The practice phone number listed in the NPPES registry for Arsen Osipov is (310) 423-6066.
- Does Arsen Osipov accept Medicare?
- Arsen Osipov is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arsen Osipov's NPI active?
- Yes — Arsen Osipov's NPI (1598108482) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.