Arun Singh, M.D.
NPI 1285817932 · Hematology & Oncology Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arun Singh, M.D. is a Hematology & Oncology Physician provider in Santa Monica, CA (NPI 1285817932).
Provider details
- NPI number
- 1285817932
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A104027 (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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,490 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 281 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 190 | $82 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 173 | $17 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 152 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 147 | $123 |
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) |
|---|---|
| Imatinib Mesylate | 74 |
| Imatinib Mesylatebrand: Gleevec | 24 |
| Pazopanib Hcl | 21 |
| Imiquimod | 16 |
| Ondansetronbrand: Ondansetron Odt | 15 |
| Gabapentin | 13 |
| Palbociclibbrand: Ibrance | 13 |
| Larotrectinib Sulfatebrand: Vitrakvi | 13 |
| Erlotinib Hcl | 12 |
| Meloxicam | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$37,861 across 40 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
Registry dates
- Enumerated
- 2007-12-17
- Last updated
- 2011-12-14
Frequently asked questions
- What is Arun Singh's NPI number?
- Arun Singh's National Provider Identifier (NPI) is 1285817932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arun Singh's specialty?
- Arun Singh is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Arun Singh located?
- Arun Singh's practice location on file with NPPES is 2825 Santa Monica Blvd, Santa Monica, CA 90404-2429.
- What is Arun Singh's phone number?
- The practice phone number listed in the NPPES registry for Arun Singh is (310) 829-5471.
- Does Arun Singh accept Medicare?
- Arun Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arun Singh's NPI active?
- Yes — Arun Singh's NPI (1285817932) is active in the NPPES registry as of the last update on 2011-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.