Guy Aaron Young, M.D.
Pediatric Hematology & Oncology Physician · Los Angeles, CA
Guy Aaron Young, M.D. is a pediatric hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1629175195, issued on Sep 19, 2006. Check the license (California G85188, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Guy Aaron Young
- Credential
- M.D.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License numbers
- G85188 CA
MED-PHYS-LIC-126509 MT
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 361-5507
- Enumerated
- Sep 19, 2006
- Record last updated
- Apr 14, 2026
- Fax
- (323) 361-7128
- Medicaid IDs
- 00G851880 CA
GR0053510 CA - Medicare enrollment
- Enrolled (PECOS I20040721001231); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric hematology & oncology physician records → All 417 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hisham Abdel-Azim, MDPediatric Hematology & Oncology Physician1114018694
- Ashraf Abou-Zamzam, MDPediatric Critical Care Medicine Physician1457442931
- Karineh Aboulian, MDPediatrics Physician1275774325
- Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
- Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
- Etai Adam, M.D.Pediatrics Physician1578811998
Verify Guy Aaron Young in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G85188Check 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: $449,051.87
277 payments; by number, the most common kind was travel and lodging; the largest payer was Genzyme Corporation. 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.
Bills Medicare through one group practice
- Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guy Aaron Young among 417 pediatric hematology & oncology physician records in California
Guy Aaron Young, M.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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 65% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1992 · median 2004 among the 120 with a school on file
- Record last updated2026 · 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
- Anna Butturini, MDLos Angeles, CA 900271467551499
- Jerry Cheng, M.D.Los Angeles, CA 900271093741175
- Thomas Coates, MDLos Angeles, CA 900271790885697
- Andrew Dietz, MD, MSLos Angeles, CA 900271700992443
- Edward Gomperts, MDLos Angeles, CA 900271306946215
- Rima Jubran, MDLos Angeles, CA 900271649379140
- William May, MDLos Angeles, CA 900271790884898
- Fariba Navid, MDLos Angeles, CA 900271144223926
Common questions
What is Guy Aaron Young, M.D.'s NPI number?
Guy Aaron Young, M.D.'s National Provider Identifier (NPI) is 1629175195, issued on Sep 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guy Aaron Young, M.D. located?
The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 361-5507. Providers update this record themselves, so call before visiting.
How can I verify Guy Aaron Young, M.D.'s license?
NPPES lists California license number G85188, 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.