Steven John Jonas, M.D., PH.D.
Pediatric Hematology & Oncology Physician · Los Angeles, CA
Steven John Jonas, M.D., PH.D. is a pediatric hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1295092740, issued on Apr 20, 2012. Check the license (California A128070, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven John Jonas
- Credential
- M.D., PH.D.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- A128070 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10833 LE Conte Ave, Los Angeles, CA 90095
- Phone
- (310) 825-6708
- Enumerated
- Apr 20, 2012
- Record last updated
- Jun 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatric hematology & oncology physician records → All 417 in California → Look up another NPI →
Also registered at 10833 LE Conte Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelechi Abanobi, M.DThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1720236953
- Afshan Abbasi, M.D.Neonatal-Perinatal Medicine Physician1831214428
- Pablo Abbona, MDDiagnostic Radiology Physician1689856239
- Amir Abu-Khalil, M.D.Surgery Physician1992095533
- Tara Aghaloo, DDS, MD, PHDOral & Maxillofacial Surgery (D.M.D.)1740464692
- Nitin Agrawal, MDInternal Medicine Physician1699394338
Verify Steven John Jonas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A128070Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $31.00
1 payment: food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 1,215 providers of this specialty with any payment received $7,404.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Steven John Jonas among 417 pediatric hematology & oncology physician records in California
Steven John Jonas, M.D., PH.D. is one of 417 pediatric hematology & oncology physician records with a practice address in California. 53% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 23% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Hematology & Oncology Physician providers in California
There are 417 pediatric hematology & oncology physician records in California.
All 417 in California → Every provider in Los Angeles → Pediatric Hematology & Oncology Physician nationwide →
The 8 pediatric hematology & oncology physician records with the nearest ZIP codes
- Erin Boatsman, M.D.Los Angeles, CA 900951730202565
- David Buchbinder, MDLos Angeles, CA 900951871734509
- Jacqueline Casillas, M.D., M.S.H.SLos Angeles, CA 900951790707065
- Vivian Chang, M.D.Los Angeles, CA 900951255595229
- Jong Chung, M.D.Los Angeles, CA 900951134311475
- Gay Crooks, MDLos Angeles, CA 900951659479129
- Christopher Denny, M.D.Los Angeles, CA 900951013930791
- Noah Federman, M.D.Los Angeles, CA 900951306045398
Common questions
What is Steven John Jonas, M.D., PH.D.'s NPI number?
Steven John Jonas, M.D., PH.D.'s National Provider Identifier (NPI) is 1295092740, issued on Apr 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Steven John Jonas, M.D., PH.D. located?
The NPPES record lists a practice address at 10833 LE Conte Ave, Los Angeles, CA, 90095. Phone: (310) 825-6708. Providers update this record themselves, so call before visiting.
How can I verify Steven John Jonas, M.D., PH.D.'s license?
NPPES lists California license number A128070, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.