Samuel Slomowitz, M.D.
NPI 1659525756 · Hematology & Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Slomowitz, M.D. is a Hematology & Oncology Physician provider in Los Angeles, CA (NPI 1659525756).
Provider details
- NPI number
- 1659525756
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 7465189-1205 (UT)
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
17 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
11,383 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 | 2,551 | $137 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 2,153 | $8 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 1,287 | $17 |
| 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 | 1,230 | $17 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 678 | $148 |
| Administration of Chemotherapy Into Vein, Each Additional Hour |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 106 | 34 |
| Letrozole | 62 | 13 |
| Hydroxyurea | 43 | 14 |
| Enzalutamidebrand: Xtandi | 40 | — |
| Apixabanbrand: Eliquis | 32 | 12 |
| Tamoxifen Citrate | 27 | — |
| Ribociclib Succinatebrand: Kisqali | 25 | — |
| Rivaroxaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$38 across 1 record (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
- 2008-11-17
- Last updated
- 2018-08-09
Frequently asked questions
- What is Samuel Slomowitz's NPI number?
- Samuel Slomowitz's National Provider Identifier (NPI) is 1659525756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Slomowitz's specialty?
- Samuel Slomowitz is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Slomowitz located?
- Samuel Slomowitz's practice location on file with NPPES is 200 Med Plaza, Los Angeles, CA 90024.
- What is Samuel Slomowitz's phone number?
- The practice phone number listed in the NPPES registry for Samuel Slomowitz is (805) 496-5153.
- Does Samuel Slomowitz accept Medicare?
- Samuel Slomowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Slomowitz's NPI active?
- Yes — Samuel Slomowitz's NPI (1659525756) is active in the NPPES registry as of the last update on 2018-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.