Sidney Stoll, D.O.
NPI 1770840167 · Hematology & Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sidney Stoll, D.O. is a Hematology & Oncology Physician provider in Los Angeles, CA (NPI 1770840167).
Provider details
- NPI number
- 1770840167
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A16313 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,031 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 | 551 | $194 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 124 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 82 | $122 |
| Assessment of Emotional Or Behavioral Problems96127 | 40 | $5 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 35 | $8 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 66 | 21 |
| Letrozole | 42 | — |
| Ondansetron Hcl | 35 | 15 |
| Apixabanbrand: Eliquis | 24 | — |
| Hydroxyurea | 24 | — |
| Potassium Chloride | 23 | — |
| Prochlorperazine Maleate | 19 | 12 |
| Dexamethasone | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,681 across 134 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 (2)
- 1505 Wilson Ter Ste 200Glendale, CA 91206-4073Phone: (818) 409-0105Fax: (818) 409-0151
- 18300 Roscoe Blvd.Leavey Cancer CenterNorthridge, CA 91325-4105Phone: (818) 885-5331Fax: (818) 700-2337
Registry dates
- Enumerated
- 2012-04-23
- Last updated
- 2021-09-24
- Certified
- 2021-09-09
Frequently asked questions
- What is Sidney Stoll's NPI number?
- Sidney Stoll's National Provider Identifier (NPI) is 1770840167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Stoll's specialty?
- Sidney Stoll is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sidney Stoll located?
- Sidney Stoll's practice location on file with NPPES is 5901 W Olympic Blvd Ste 105, Los Angeles, CA 90036-4680.
- What is Sidney Stoll's phone number?
- The practice phone number listed in the NPPES registry for Sidney Stoll is (323) 489-6010.
- Does Sidney Stoll accept Medicare?
- Sidney Stoll is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sidney Stoll's NPI active?
- Yes — Sidney Stoll's NPI (1770840167) is active in the NPPES registry as of the last update on 2021-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.