DR. STEVEN JOHN JONAS M.D., PH.D.
NPI 1295092740
Pediatrics - Pediatric Hematology-Oncology in Los Angeles, CA
About Dr. Steven John Jonas M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN JOHN JONAS M.D., PH.D. (NPI 1295092740) is an individual pediatric hematology-oncology provider in Los Angeles, California, licensed in California (A128070) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Steven John Jonas M.d., Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Steven Jonas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 323 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
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 Steven Jonas's NPI number?
The NPI number for Steven Jonas is 1295092740. It was assigned to this individual provider in the NPPES registry on April 20, 2012.
Where is Steven Jonas located?
Steven Jonas practices at 10833 Le Conte Ave, Los Angeles, CA 90095. The listed phone number is (310) 825-6708.
What is Steven Jonas's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Steven Jonas enrolled in Medicare?
Yes. Steven Jonas is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Steven Jonas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Jonas reassigns Medicare benefits to Uc Regents (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 Steven Jonas'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 Steven Jonas was last updated on June 6, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Steven John Jonas, M.D., PH.D. · NPI 1295092740
Pediatric Hematology-Oncology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 20, 2012.
## Identity
- **NPI:** 1295092740 (Entity type: Individual)
- **Enumerated:** April 20, 2012
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** A128070 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 10833 LE CONTE AVE, Los Angeles, CA 90095
- **Phone:** (310) 825-6708
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Uc Regents (NPI 1982667663, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 6, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1295092740) · Data from the CMS NPPES public registry.