SIDNEY MORRIS STOLL D.O.
NPI 1770840167
Internal Medicine - Hematology & Oncology in Los Angeles, CA
About Sidney Morris Stoll D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIDNEY MORRIS STOLL D.O. (NPI 1770840167) is an individual hematology & oncology provider in Los Angeles, California, licensed in California (20A16313) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sidney Morris Stoll D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Sidney Stoll reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90017
- Reassigned Medicare billing, California enrollment
- 59 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90036
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sidney Stoll's NPI number?
The NPI number for Sidney Stoll is 1770840167. It was assigned to this individual provider in the NPPES registry on April 23, 2012.
Where is Sidney Stoll located?
Sidney Stoll practices at 5901 W Olympic Blvd Ste 105, Los Angeles, CA 90036. The listed phone number is (323) 489-6010.
What is Sidney Stoll's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Sidney Stoll enrolled in Medicare?
Yes. Sidney Stoll is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Sidney Stoll's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sidney Stoll reassigns Medicare benefits to Los Angeles Hematology-Oncology Medical Group (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sidney Stoll's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sidney Stoll was last updated on September 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Sidney Morris Stoll, D.O. · NPI 1770840167
Hematology & Oncology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 23, 2012.
## Identity
- **NPI:** 1770840167 (Entity type: Individual)
- **Enumerated:** April 23, 2012
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 20A16313 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5901 W OLYMPIC BLVD STE 105, Los Angeles, CA 90036-4680
- **Phone:** (323) 489-6010 · **Fax:** (833) 402-0866
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Los Angeles Hematology-Oncology Medical Group (NPI 1457409674, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** September 24, 2021
- **Other identifiers:** Other 20A16313 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1770840167) · Data from the CMS NPPES public registry.